SITC 2018 Abstracts

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P1The identification of potent anti-tumor antibodies for ADC therapeutics from patients undergoing immunotherapyAlexander Scholz, PhD; Jerald Aurellano; Michael Harbell, MS PhD; Danhui Zhang, MD PhD; Samantha O'Connor; May Sumi, BS; Beatriz Millare, BS; Felix Chu, MS; Sheila Fernandez; Cathrin Czupalla; Iraz T. Aydin, PhD; Amy Manning-Bog, PhD; Yvonne Leung, BS, PhD; Kevin Williamson, BS PhD; Chantia Carroll; Dongkyoon Kim, BS PhD; Xiaomu Chen, MS PhD; Sean M. Carroll, BS, PhD; Ish Dhawan, PhD; Ngan Nguyen, BS PhD; Shweta Thyagarajan; Mark Whidden; Gregg Espiritu Santo, BS PhD; Nicole Haaser, MS; Hibah Mahmood; Guy Cavet, PhD; Lawrence Steinman, MD; Tito A. Serafini, PhD; Wayne Volkmuth, BS PhD; Jonathan Benjamin, MD, PhD; William H. Robinson, MD; Norman M. Greenberg, PhD; Daniel Emerling, PhD; Jeff DeFalcoAntibody; B cell; Bioinformatics; Tumor antigens
P2Intratumoral application of hu14.18-IL2 for treatment of GD2+ pediatric malignancies: A novel immunotherapeutic approach aiming at in-situ vaccinationRomana Gugenberger, PhD; Zachary S. Morris, MD, PhD; Oliver Mutschlechner; Paul M. Sondel, MD, PhD; Hans Loibner, PhD Antibody; Cytokine; Pediatric tumors; Solid tumors; Vaccine
P3Evaluating antibody-mediated cellular cytotoxicity and potency of antibody-drug conjugates within three-dimensional tumor modelsChris Langsdorf, BS; Bhaskar S. Mandavilli, PhD; Yi-Zhen Hu; Aimei Chen, Bachelor of Science; Marcy Wickett Adoptive immunotherapy; Antibody; NK/NK T cell; Solid tumors; T cell; Tumor microenvironment
P4PBD-based anti-MICA/B antibody drug conjugate with a dual mechanism of action: direct tumor cell killing and restoration of NKG2D-mediated immunosurveillanceFlorence Lhospice, Pharm D; Laurent Pouyet, PhD; Ester Morgado; Romain Remark, PhD; Delphine Bregeon, PhD; Adeline Montbel; Nadia Anceriz; Mathieu Blery, PhD; Ariane Morel, PhD; Manel kraiem; Kenneth Crook; Yannis Morel, PhD; Eric Vivier; Antibody; Immune monitoring; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P5Anti-CD38 immunotherapy kills Treg (CD4+CD25+FoxP3+CD38hi) and Breg (CD19+CD24+CD38hi) cells and restores the anti-tumor T-cell repertoire in chronic lymphocytic leukemia (CLL).Alak Manna, PhD; Sonikpreet Aulukh, MD; Laura J. Lewis-Tuffin, PhD; Taimur Sher, MD; Sikander Ailawadhi, MD; Rami Manuchakian, MD; Asher A. Chanan-Khan; Aneel Paulus, MD; Alak Manna, PhD; Antigen presenting cells; B cell; Immune suppression; Leukemia/Lymphoma; T cell; Targeted therapy; Tumor microenvironment
P6Anti-CD38 immunotherapy kills Treg (CD4+CD25+FoxP3+CD38hi) and Breg (CD19+CD24+CD38hi) cells and restores the anti-tumor T-cell repertoire in chronic lymphocytic leukemia (CLL).Alak Manna, PhD; Sonikpreet Aulakh, MD; Laura J. Lewis-Tuffin, PhD; Taimur Sher, MD; Sikander Ailawadhi, MD; Rami Manuchakian, MD; Asher A. Chanan-Khan; Aneel Paulus, MD; B cell; Immune adjuvant; Immune suppression; Immune tolerance; Immune toxicity; Leukemia/Lymphoma; Monocyte/Macrophage
P7Potent tumor-directed T cell activation and tumor inhibition induced by a 4-1BB x 5T4 ADAPTIR™ bispecific antibodyMichelle H. Nelson, PhD; Gabriele Blahnik-Fagan; Robert Bader; Doreen Werchau, BS; Anneli Nilsson; Lill Ljung; Jeannette Bannink, BS; Danielle Mitchell; Lynda Misher; Catherine McMahan; Maria Askmyr; Anna Dahlman; Peter Ellmark, PhD; Gabriela Hernandez-Hoyos; Sara Fritzell; Sara FritzellAntibody; Costimulation; NK/NK T cell; T cell; Targeted therapy
P8Single-cell proteomic analysis of T cells stimulated by Bi-specific T-cell Engagers (BiTEs) shows robust and unique polyfunctional secretion profileSean G. Mackay, MBA; Patrick Paczkowski; Brianna Flynn, MS; Kevin Morse; Tiffany A. Coupet, BS; Claire Godbersen, B.S.; Charles L. Sentman; Jing Zhou, MD, PhD; Antibody; Bioinformatics; Biomarkers; Chemokine; Cytokine; Proteomics; T cell; Targeted therapy; Tumor antigens
P9Identification and functional profiling of PD-L1 targeted engineered toxin bodies for antigen seeding technology and redirection of T cell response to tumorsBrigitte Brieschke, BS; Sara LeMar; Garrett L. Robinson; Aimee Iberg, Ph.D.; Shaoyou Chu, Ph.D.; Jack P. Higgins, Ph.D.; Erin K. Willert, Ph.D.; Hilario J. Ramos, Ph.D.;Adoptive immunotherapy; Checkpoint blockade; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs)
P10Local radiation with intratumoral anti-disialoganglioside (anti-GD2) and interleukin-2 (IL2) induces significant tumor responses with immunologic memory in a syngeneic murine NXS2 neuroblastoma modelJulie S. Voeller, MD; Amy K. Erbe, PhD; Kayla Rasmussen, Ms; Jacob Slowinski, Mr.; Sabrina VandenHeuvel; Ravi Patel, MD, PhD; Hans Loibner, PhD;Stephen D. Gillies, PhD; Jacquelyn A. Hank, PhD; Alexander L. Rakhmilevich, MD, PhD; Zachary S. Morris, MD, PhD; Paul M. Sondel, MD, PhD; Julie S. Voeller, MD; Julie S. Voeller, MD; Antibody; Pediatric tumors; Radiotherapy; Solid tumors; Targeted therapy; Tumor antigens
P11A CD25-targeted pyrrolobenzodiazepine dimer-based antibody-drug conjugate shows potent anti-tumor activity in pre-clinical models of solid tumors either alone or in combination with a PD-1 inhibitorFrancesca Zammarchi, PhD; Karin Havenith, PhD; Francois Bertelli; Balakumar Vijayakrishnan; Patrick H. van Berkel, Ph.D; Antibody; Checkpoint blockade; Regulatory T cell (Treg cell); Solid tumors; Targeted therapy; Tumor infiltrating lymphocytes (TILs)
P12Response and toxicity with immune checkpoint inhibition in older patients with non-small-cell lung cancerKeval B. Yerigeri, BS; Kristen Marrone, MD; Jiajia Zhang, MD, MPH; Julie R. Brahmer, MD; Patrick Forde, MD; Christine L. Hann, MD, PhD; David S. Ettinger, MD; Ronan J. Kelly, MD MBA; Josephine L. Feliciano, MD; Sarah Sagorsky, PA-C; Michelle Turner, NP; Valerie Rowe, NP; Jarushka Naidoo, MDCheckpoint blockade; Immune toxicity; Solid tumors
P13Molecular profiling of anti-PD-1 treated melanoma patients reveals importance of assessing neoantigen burden and tumor escape mechanisms for clinical treatmentCharles W. Abbott, III, PhD; Sean M. Boyle, PhD; Eric Levy, PhD; Rena McClory; Sekwon Jang, MD; Richard ChenBioinformatics; Biomarkers; Gene expression; Immune monitoring; Neoantigens; Tumor evasion; Tumor microenvironment
P14Durvalumab treatment-induced transcriptional changes in the tumor microenvironment associated with longer survival in patients with late stage Non-Small Cell Lung Cancer (NSCLC)Ikbel Achour, PhD; Zachary A. Cooper, PhD; Sriram Sridhar; Maria L. Ascierto, PhD; Jixin Wang; Young S. Lee; Natasha Angra; Shaad E. Abedin, MD, FACP; Rajiv G. Raja, PhD; Brandon W. Higgs, PhD; Maria Jure-Kunkel B cell; Biomarkers; Checkpoint blockade; Dendritic cell; Gene expression; Immune contexture; NK/NK T cell; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P15Development of a Robust, Simplified Method to Measure Receptor Occupancy in Peripheral Blood from Patients Treated with a Novel Anti-PD-1 Agent, AB122Devika Ashok, PhD; Dana Piovesan, MSc; Sharon Zhao; Hema Singh; Steve W. Young, PhD; Matthew J. Walters, PhD; Lisa Seitz, MSc Biomarkers; Checkpoint blockade; Clinical study; Clinical trial; Immune monitoring; Solid tumors; T cell
P16Better efficacy of PD-1 antibody predicted by immune-related adverse effects is impaired by high dose steroidsXue Bai, MD; Michelle Kim; Gyulnara Kasumova; Tatyana Sharova; Justine V. Cohen, DO; Donald Lawrence, MD; Christine Freedman, RN; Riley Fadden, NP; Krista M. Rubin, MS, FNP-BC; Ryan J. Sullivan, MD; Keith T. Flaherty; Genevieve M. Boland, MD, PhD; Biomarkers; Checkpoint blockade; Clinical study; Immune suppression; Immune toxicity
P17Combined MAGE-A1,3/6,4, and 10 expression levels quantified in solid tumors by (BaseScope™) RNA in situ hybridization (ISH) identify targets for immunotherapyAnshika Bajaj, PhD; Helly Xiao Yan Pimentel; Bingqing Zhang, PhD; Ruby Hsu, PhD; Peter Berglund, PhD; Jan H. Ter Meulen, MD, PhDAdoptive immunotherapy; Biomarkers; Dendritic cell; Gene expression; Solid tumors; Targeted therapy; Tumor antigens; Vaccine
P18Preliminary Evaluation of a Novel Whole Slide Multispectral Assessment of Seven Markers: Potential to Minimize Bias in the Characterization of the Tumor Immune EnvironmentCarmen Ballesteros Merino, PhD; Shawn M. Jensen, PhD; Carla Coltharp, PhD; Kristin Roman, MS; Chichung Wang; Nikhil Lonberg, HSDG; Sebastian Marwitz; Tarsem L. Moudgil, MS; William L. Miller, BS; William L. Redmond, PhD; Yoshinobu Koguchi, MD, PhD; Carlo B. Bifulco, MD; Clifford C. Hoyt, MS; Bernard A. Fox, PhDBiomarkers; Immune contexture; Immune monitoring; Immunoscore; Tumor microenvironment; Tumor stroma
P19Molecular determinants of response to PD-L1 blockade across tumor typesRomain Banchereau; Ning Leng; Edward E. Kadel, III, BS; Dorothee Nickles, PhD; Steve Lianoglou, BS, MSc, PhD; Oliver Zill; Sushit Jhunjhunwala; Luciana Molinero, PhD; Mahrukh Huseni; Marcin Kowanetz, Ph.D.; Richard Bourgon, BS, PhD; Craig Cummings, PhD; Sanjeev Mariathasan, PhD; Priti S. Hegde, PhD; Thomas Powles, MBBS, MD, MRCP Biomarkers; Checkpoint blockade; Clinical trial; Gene expression; Systems biology
P20A structured tumor-immune microenvironment in triple negative breast cancer revealed by multiplexed ion beam imagingLeeat Keren; Marc Bosse; Robert West; Sean C. Bendall, PhD; Michael Angelo, MD, PhD; Bioinformatics; Biomarkers; Checkpoint blockade; Immune tolerance; Proteomics; Systems biology; Tumor microenvironment
P21Deep learning-based PD-L1 tumor cell (TC) scoring improves survival prediction compared to pathologists on durvalumab-treated NSCLC patientsNicolas Brieu, PhD; Ansh Kapil; Aleksandra Zuraw, Dr.; Supporting Author - Abraham Silva, MD; Supporting Author - Marlon C. Rebelatto, DVM, PhD, DACVP; Supporting Author - Keith E. Steele, DVM, PhD; Presenting Author - Guenter Schmidt, PhD; Bioinformatics; Biomarkers; Checkpoint blockade
P22Impact of tumor inherent interferons on immune reactivity and personalized therapy in triple negative breast cancerNatasha K. Brockwell, BBiomed (Hons); Jai Rautela; Tim Molloy, PhD; Sandra O'Toole, MD, PhD; Vinod Ganju, MBBS, FRACP; Belinda S. Parker; Biomarkers; Checkpoint blockade; Chemotherapy; Immune contexture; Immune monitoring; Immunoscore; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); TLR; Tumor microenvironment; Tumor stroma
P23Centrifuge-less immunostaining of suspension cells for flow cytometry analysis by DA-Cell™ washer and plate for superior data and workflowNamyong Kim, PhD; Melvin LyeCAR T cells; Immune monitoring; Systems biology; T cell
P24Centrifuge-less red blood cell lysis and immunostaining of whole blood for flow cytometry using DA-Cell washer and plateMelvin Lye; Namyong Kim, PhD B cell; Biomarkers; CAR T cells; Immune monitoring; Immune tolerance; Immune toxicity
P25Consistent pharmacodynamics and immunological responses to the TLR9 agonist, SD-101, following intratumoral injection in multiple cancer typesAlbert F. Candia, PhD; Cristiana Guiducci, PhD; Ezra Cohen, MD; Ronald Levy, MD; Mohammed Milhem, MBBS; Antoni Ribas, MD, PhD; Thomas Tuting, MD; Erick Gamelin, MD PhD; Robert S. Janssen, MD; Robert L. Coffman, Jr., PhD Biomarkers; Checkpoint blockade; Clinical study; Dendritic cell; Gene expression; Immune monitoring; Tumor infiltrating lymphocytes (TILs); TLR; Tumor microenvironment
P26High-dimensional flow cytometry of circulating immune cells predicts clinical responses to combination Immune Checkpoint Blockade (ICB) and Radiotherapy (RT) in Gastroesophageal Cancer (GEC)Joseph Chao, MD; Wanqiu Hou; Yi-Jen Chen, MD, PhD; Helen Chen; Michael Tajon; Marwan Fakih, MD; Peter P. Lee, MD; Biomarkers; Checkpoint blockade; Clinical trial; Immune monitoring; Monocyte/Macrophage; Radiotherapy; Solid tumors; T cell
P27Tumor mutational burden assessment on FFPE samples using a targeted next-generation sequencing assayRuchi Chaudhary, PhD; Dinesh Cyanam, PhD; Vinay Mittal; Charles Scafe; Warren Tom, PhD; Janice Au-Young; Seth Sadis; Fiona Hyland Bioinformatics; Biomarkers; Checkpoint blockade
P28Detection and validation of cancer immunotherapy biomarkers in blood and urine-based liquid biopsySimo Zhang; Shidong Jia; Amy Wang; Chen Xie Bioinformatics; Biomarkers
P29Ensemble computational intelligence reveals novel molecular signatures of cancer biology and pan-cancer survivalRichard T. Williams; Thomas Chittenden; Nicholas A. Cilfone, x; Jeffrey R. Gulcher; Bioinformatics; Biomarkers; Systems biology
P30Tracking the cancer immune response using neural network deep learning of serial inflammatory marker data for forecasting timing of therapyBrendon J. Coventry, MD PhD; Mohsen Dorraki, MSc, BS; Anahita Fouladzadeh, BSc; Andrew Alison; Derek Abbott, PhD; Brendon J. Coventry, MD PhD;Bioinformatics; Biomarkers; Immune monitoring; Inflammation; Solid tumors; Systems biology; Targeted therapy
P31Prevalence of high microsatellite instability in cancer patients in the real worldRazvan Cristescu, PhD; Kai-Li Liaw, PhD; Scott Pruitt, MD, PhD; Mark Ayers, PhD; Jianda Yuan, MD, PhD; Thao Vo, MD; Senaka Peter; Andrew Joe, MD PhD; Darcy Hille; Sun Young Rha; Torben Steiniche; Andrey Loboda, PhD Biomarkers
P32Monitoring of M-MDSC vs. G-MDSC in clinical studies – which is more important? (monocytic versus granulocytic myeloid derived suppressor cells)Henry Hepburne-Scott, PhD; Phoebe Bonner-FerrabyAntibody; Biomarkers; Checkpoint blockade; Clinical study; Clinical trial; Granulocyte; Immune monitoring; Monocyte/Macrophage; Myeloid cells; MDSC
P33DNA damage detected by localized γH2AX is associated with elevated TILs and PD-L1 expression in human colorectal carcinomas.Shruti Desai, PhD; Parker Sulkowski; Aravind N. Kalathil; Ranjini Sundaram; Ila J. Datar, PHD; Charles Fuchs, MD, MPH; Patricia LoRusso, DO; Ranjit S. Bindra; Kurt A. Schalper, MD, PhDBiomarkers; Checkpoint blockade; Neoantigens; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P34Clinical application of urinary cell free DNA as a marker for cancerJeffrey Ding; Debin Sun; Biomarkers; Clinical study; Targeted therapy
P35Development of biomarkers to assess adenosine generation & activity in support of clinical trials conducted with the adenosine receptor antagonist AB928Daniel DiRenzo, PhD; Joanne BL. Tan, PhD; Devika Ashok, PhD; Amy Anderson, PhD; Jenna Jeffrey, PhD; Lisa Seitz, MSc; Manmohan R. Leleti, PhD; Steve W. Young, PhD; Jay P. Powers, PhD; Matthew J. Walters, PhD Biomarkers; Gene expression; Tumor microenvironment
P36Defining the expression of Programmed Death-Ligand 2 in high grade glioma tumor microenvironmentGifty A. Dominah; Victoria E. Sanchez, BS; John Lynes, MD; Nicholas Adamstein; Arnold Obungu, BS, BA; Xiang Wang, MS; Nancy Edwards, BA; Edjah K. Nduom, MD; Antibody; Biomarkers; Checkpoint blockade; Chemotherapy; Immune monitoring; Immune suppression; Regulatory T cell (Treg cell); T cell; Tumor evasion; Tumor microenvironment
P37Multiplexed biomarker quantification to assay and characterize T-cell activationShilan Dong, MS; Jason G. Cahoon, BS; Rachit Ohri, PhD; Shilan Dong, MS; Adoptive immunotherapy; Biomarkers; Costimulation; Cytokine; Immune monitoring; Immune suppression; Proteomics; T cell
P38Highly multiplex spatial immuno-profiling in FFPE tumor tissue with InSituPlex technologySean R. Downing, PhD; Abdul Mohammed, PhD; Abdul Mohammed, PhD; Gourab Chatterjee, PhD; Kevin Hwang, PhD; Julie Xia; Amanda J. Bares, PhD; Michael Murphy; Eloise Wheeler; Armen Changelian; Katir K. Patel, PhD; Bonnie Phillips, PhD; Mael Manesse, PhD Antibody; Biomarkers; Immune contexture; Immune monitoring; Monocyte/Macrophage; Proteomics; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P39PD-L1 expression on tumor versus antigen presenting cells investigated with multiplexed IHC using UltiMapper™ I/O assaysAmy Zhang, M.S.; Amy Zhang, M.S.; Alexis Wong, PhD; Max Rubinstein; Laura Sciarra, PhD; Chakib Boussahmain, Mr., B.S; Bonnie Phillips, PhD; Katir K. Patel, PhD; Sean R. Downing, PhD; Stephanie Hennek, PhD Antibody; Antigen presenting cells; Biomarkers; Immune contexture; Immune monitoring; Immune suppression; Proteomics; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P40Intra-assay and inter-assay assessment of reproducibility and quantification of UltiMapperTM I/O PD-1 and PD-L1 immuno-oncology panels for tissue multiplexingBonnie Phillips, PhD; Bonnie Phillips, PhD; Katir K. Patel, PhD; Courtney Hebert; Jamie Buell; Sean R. Downing, PhDAntibody; Biomarkers; Immune contexture; Immune monitoring; Monocyte/Macrophage; Proteomics; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P41Characterization of circulating biomarkers in subjects with NSCLC using data independent acquisition mass spectrometry reveals host immune response mechanismsNicholas Dupuis, PhD; Jakob Vowinckel, PhD; Daniel Heinzmann; Claudia Escher Biomarkers; Immune monitoring; Inflammation; Proteomics
P42Expanding insights into the colorectal cancer tumor proteome; unbiased protein profiling reveals multiple proteomic-based tumor subtypesJan Muntel; Roland Bruderer; Nicholas Dupuis, PhD; Lukas ReiterBioinformatics; Biomarkers; Gene expression; Proteomics; Solid tumors; Tumor microenvironment
P43The presence of exhausted CD8+ T cells identifies a subset of immunogenic ER+ breast cancer patient tumors Colt Egelston, PhD; Christian Avalos; Diana L. Simons; Min Hui Lim; Peter P. Lee, MDSolid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P44Discovery and screening of protein biomarkers with the FirePlex Technology PlatformTimothy P. Erps; Amy Perea, PhD; Russell Neuner, PhD; Bianca Heinrich, PhD; Wayne Austin; Conor Rafferty, PhD; Matt Camilleri; Long To; James Murray, PhD; Daniel Pregibon, PhD; Elnaz Atabakhsh, PhD Bioinformatics; Biomarkers; Chemokine; Cytokine; Inflammation; Proteomics
P45Tumor infiltrating T cells: complete workflows allow faster and improved analysisCesar Evaristo, PhD; Ramona Siemer, BTA; Philipp Steinbrueck; Zhongjie Yu; David Agorku, BS; Olaf Hardt, PhD; Christian Dose, PhD; Anne Richter, PhDImmune monitoring; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P47Immune response in patients treated with autologous dendritic cells transduced with AdGMCA9 (DC-AdGMCAIX) in patients with mRCC from the phase I, open label, dose escalation and cohort expansion studyIzak Faiena, MD; Nazy Zomorodian; Beata Berent-Maoz; Ankush Sachadeva; Adrian Bot, MD, PhD; Fairooz Kabinnavar; Jonathan Said; Gardenia Cheung-Lau; Jia Pang; Mignonette Macabali; Tinle Chodon; Xiaoyan Wang; Paula Cabrera; Paula Kaplan-Lezco; Sandy Liu; Begonya Comin-Anduix, PhD; Allan J. Pantuck, MD; Arie Belldegrun, MD, FACS; Karim Chamie, MD; Alexandra Drakaki, MD,PHD; Izak Faiena, MD; Clinical trial; Dendritic cell
P48A high baseline neutrophil-to-lymphocyte ratio in patients receiving anti-PD-1 therapy for head and neck cancer associates with poor prognosis, tumor hypoxia, and tumor M2 macrophage predominanceCorey C. Foster, MD; Riyue Bao, PhD; Sara Kochanny, BA; Arun Khattri, PhD; Rajesh Acharya, MS; Allison Dekker, RN; Yi-Hung Carol Tan, PhD; Elaine Klema, BS; Ryan Brisson, BS; Vassiliki Saloura; Alexander T. Pearson, MD, PhD; Everett E. Vokes, MD; Rom Leidner, MD; Hisham Mehanna, PhD; Tanguy Seiwert, MD Biomarkers; Checkpoint blockade; Gene expression; Immune monitoring; Monocyte/Macrophage; Solid tumors; Tumor microenvironment
P49Comprehensive immune and molecular analysis of a cohort of non-small cell lung cancer (NSCLC) patients treated with a personal neoantigen vaccine, NEO-PV-01, in combination with anti-PD1Joel Greshock; Ramaswamy Govindan, MD; Riley R. Curran; Rana Besada; Samantha J. Gates; Victoria Kohler; Meghan E. Bushway; Julian Scherer, PhD; Ying Sonia Ting; Yuting Huang, Master of Science; Yvonne Ware, Masters; April Lamb; Lisa D. Cleary; Melissa Moles; Joel Greshock; Richard B. Gaynor, MD; Matthew J. Goldstein, MD, PhD; Lakshmi SrinivasanAntigen presenting cells; Biomarkers; Clinical trial; Immune monitoring; Neoantigens; Solid tumors; T cell; Tumor antigens; Vaccine
P50Characterization of T cell receptor repertoire from FFPE extracted RNA from glioblastoma patients by anchored multiplex PCR and next-generation sequencingLAURA JOHNSON, PhD; Josh D. Haimes; Namitha M. Nair; Angelo Porciuncula, PhD; Kurt A. Schalper, MD, PhD;Immune monitoring; T cell
P51Objective quantitative measurements of PD-L1 expression in tumor tissue by Phosphor Integrated Dots staining in patients with non-small cell lung cancerKazuyuki Hamada, MD, PhD.; Ryotaro Ohkuma, MD; Takehiro Takahashi, MD, PhD.; Takeshi Setogawa; Masaru Takahashi; Hisatake Okada; Hiroo Ishida; Yutaro Kubota, MD, PhD.; Hirotsugu Ariizumi, MD. PhD.; Etsuko Satoh, MD, PhD.; Yuya Hirasawa, MD; Yasutsuna Sasaki, MD, PhD.; Kiyoshi Yoshimura, MD, PhD.; Takuya Tsunoda, MD; Satoshi Wada, MD, PhD.Biomarkers; Checkpoint blockade; T cell; Tumor infiltrating lymphocytes (TILs)
P52Emergence of an ICOShi CD4 T cell subset correlates with tumor reductions in subjects treated with the ICOS agonist antibody JTX-2011Amanda Hanson; Sean M. Lacey, MA Biostatistics; Courtney Hart; Ty McClure; Ellen Hooper, MD; Elizabeth G. Trehu, MD; Deborah Law, DPhil; Christopher Harvey, PhDBiomarkers; Costimulation; Immune monitoring
P53X4P-001, an orally bioavailable CXCR4 antagonist, increases immune cell infiltration and tumor inflammatory status in the microenvironment of melanomaRobert H. Andtbacka, MD, CM, FACS, FRCSC; Robert H. Pierce, Jr., MD; Jean S. Campbell, PhD; Melinda Yushak, MD, MPH; Mohammed Milhem, MBBS; Merrick Ross, MD; Katie Niland; Lu Gan, MD, PhD; Sudha Parasuraman, MD; Yan Wang, PhDAntigen presenting cells; Biomarkers; Checkpoint blockade; Chemokine; Clinical study; Immune suppression; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P54Adenosine signature genes associate with tumor regression in renal cell carcinoma (RCC) patients treated with the adenosine A2A receptor (A2AR) antagonist, CPI-444Andrew Hotson, PhD; Stephen Willingham, PhD; Lawrence Fong, MD; John D. Powderly, II, MD, CPI; Jason J. Luke, MD, FACP; Mario Sznol, MD; Saby George, MD, FACP; Toni K. Choueiri; Marios Giannakis, MD, PhD; Brian I. Rini, MD; Shivaani Kummar, MD; Erik Evensen; Ian McCaffery, PhD; Chunyan Gu; Long Kwei, PhD; Ginna Laport; Joseph J. Buggy; Richard A. Miller, MD; Biomarkers; Clinical trial; Gene expression; Solid tumors; Tumor microenvironment
P55Within the secretome: Immunomodulatory role of extracellular vesicles in breast cancers.Atousa khiabany, Mres; Fabian Flores-Borja, PhD; Ines García Carcedo; Felix Wong; Fabienne Beuron, PhD; Jose vicencio; Andrew Tutt; Tony Ng; SHEEBA IRSHAD, MD PhDImmune tolerance; Inflammation; Tumor evasion; Tumor microenvironment
P56New Dextramer technology for T-cell epitope profiling, and single cell deep phenotyping using DNA barcodes, transcriptomic and genetic sequence analysis, on single cellsKivin KJ. Jacobsen, PhD; Liselotte Brix, phdAdoptive immunotherapy; Antigen presenting cells; Autoimmunity; Bioinformatics; Biomarkers; Carcinogenesis; Immune monitoring; Neoantigens; T cell; Tumor antigens
P57A rapid multi-color fluorescence imaging on frozen tissuesDinesh Jaishankar, PhD; Cormac Cosgrove, PhD; Caroline Le PooleAntibody; Immune monitoring
P58The use of low-coverage sequencing of cell-free DNA for monitoring response to immune checkpoint inhibitors throughout treatmentTaylor J. Jensen, Ph.D.; Aaron M. Goodman; Shumei Kato, MD; Mina Nikanjam; Christopher K. Ellison; Gregory A. Daniels, MD, PhD; Lisa Kim, M.S.; Kimberly Kelly, M.S.; Kerry Fitzgerald, Ph.D.; Erin McCarthy; Prachi Nakashe, M.S.; Amin R. Mazloom; Graham McLennan, M.S.; Daniel S. Grosu, MD, MBA; Mathias Ehrich; Razelle Kurzrock, MDBioinformatics; Biomarkers; Checkpoint blockade; Clinical study; Solid tumors; Systems biology
P59Assessment of consistency of multiplex fluorescent immunohistochemistry data across multiple users utilizing different quantitative analysis strategiesShawn M. Jensen, PhD; Carmen Ballesteros Merino, PhD; Sebastian Marwitz; Nikhil Lonberg, HSDG; Bernard A. Fox, PhDBiomarkers; Immune contexture; Immune monitoring; Immunoscore; Tumor microenvironment
P60Circulating tumor DNA assessment in plasma samples collected in Atezolizumab versus docetaxel in subjects with previously treated non-small-cell lung cancer (OAK) studyYuqiu Jiang, PhD; Namrata S. Patil, Ph.D.; Johnny Wu; Wei Zou; Stephanie Yaung; Aarthi Balasubramanyam; Susan Flynn; Maureen Peterson; Eric Peters; Priti S. Hegde, PhD; Simonetta Mocci; Marcin Kowanetz, Ph.D.; John Palma Bioinformatics; Biomarkers; Checkpoint blockade; Chemotherapy; Solid tumors
P61Development of an exosome / EV analysis pipeline for tumor and immune monitoringJoshua A. Welsh, PhD; Kevin C. Conlon, MD; Milos Miljkovic, MD, MSc; Julia Kepley, BS; Jennifer Marte, BS MD; Jason Savage, PhD; Veronica Galli, PhD; Katherine McKinnon, MS; Katherine Calvo, MD, PhD; Hong Zhang; Cynthia Masison; Fatima Karzai, MD; Fatah Kashanchi; Deborah Citrin; Steve C. Jacobson; James L. Gulley, MD, PhD, FACP; Genoveffa Franchini, PhD; Thomas A. Waldmann, MD; Kevin Camphausen, MD, PhD; Jennifer C. Jones, MD, PhD; Jennifer C. Jones, MD, PhD; Immune contexture; Immune monitoring; Leukemia/Lymphoma; Radiotherapy; Systems biology; Tumor microenvironment
P62A Pan-cancer view of the immune landscape in the tumor microenvironment via RNA and their potential for biomarkers in clinical trialsWendell Jones; B cell; Biomarkers; Gene expression; Monocyte/Macrophage; NK/NK T cell; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P63Estimation of Microsatellite Instability (MSI) by next-generation sequencing using a novel MSI classification method Sameh El-Difrawy; Annie Kraitcheva; Alice Zheng; Simon Crawley; Asha Kamat, PhD;Bioinformatics; Biomarkers; Solid tumors
P64Evaluation of PD-L1 and IRF-1 expression on circulating tumor cells as a predictive biomarker of checkpoint inhibitor responseLaura C. Kennedy, MD PhD; Lance U'Ren, DVM, PhD; Yao Sun; Petros Grivas, MD, PhD; Laura Q. Chow, MD; Vijayakrishna Gadi, MD, PhD; Biomarkers; Checkpoint blockade; Clinical study; Immune monitoring
P65IDO/HLA-DR expression and tumor mutational burden are complementary predictive biomarkers of anti-PD-1 immunotherapy in squamous cell carcinoma of the head and neckArun Khattri, PhD; Ju Young Kim; Riyue Bao, PhD; Rajesh k. Acharya; Yi-Hung Carol Tan, PhD; Rom Leidner, MD; Hisham Mehanna, PhD; Nathan Roscoe; Christine A. Vaupel, PhD; Naveen Dakappagari; Tanguy Seiwert, MD; Sara Kochanny, BA; Antigen presenting cells; Biomarkers; Checkpoint blockade; Immune monitoring; Neoantigens; Tumor infiltrating lymphocytes (TILs)
P66Evaluation of Immune – related Markers in circulating proteome and their association with atezolizumab efficacy in patients with 2L+ NSCLCMarcin Kowanetz, Ph.D.; Ning Leng; Joanna Roder, PhD; Carlos Oliveira, PhD; Senait Asmellash, PhD; Krista Meyer, PhD; Heinrich Roder, DPhil; Marcus Ballinger, PhD; David Shames, Ph.D.; Marcin Kowanetz, Ph.D.; David Shames, Ph.D.; Biomarkers; Checkpoint blockade; Clinical study; Clinical trial; Immune monitoring; Immune suppression; Immunoscore; Inflammation; Proteomics; Solid tumors
P67Innovative combinatorial approach to characterize the immune landscape and analyze the tumor response after anti-PD-1 blockade in a 3D ex-vivo tumoroid system of non-small cell lung cancerMelba Marie Page, Ph.D.; Melanie Mediavilla-Varela, PhD; Jenny Kreahling, PhD; Soner Altiok, MD, PhDAntibody; Biomarkers; Checkpoint blockade; Cytokine; Immune monitoring; Solid tumors; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P68Using high dimensional mass cytometry (CyTOF) and machine assisted analysis to detect biomarkers in the immunotherapy of cancerCarsten Krieg, PhD; Silvia Guglietta; John M. Wrangle, MD; Luis E. Cardenas, B.S.; Mitchell Levesque; Reinhard Dummer, MD; Burkhard Becher;Mark P. Rubinstein, PhD; Mark Robinson; Carsten Krieg, PhD; Biomarkers; Checkpoint blockade; Clinical trial; Cytokine; Immune monitoring; Inflammation; Monocyte/Macrophage; Myeloid cells; NK/NK T cell
P69Simultaneous quantification of activated immune cells and PD-L1 expressing circulating tumor cells (CTCs) in peripheral blood of cancer patients receiving checkpoint inhibitor therapyRachel Krupa, BS; Robin Richardson; Priscilla Ontiveros; Joseph Schonhoft; Yipeng Wang, PhD, MD; Jiyun Byun, MS; David Lu; Aaron Oh; Sean Nisperos; Mark Landers, MS; Ryan Dittamore, MSBiomarkers; Checkpoint blockade; Immune monitoring; T cell; Targeted therapy; Tumor antigens; Tumor microenvironment
P70CD4+FOXP3+ regulatory T cells in the periphery of HNSCC patients demonstrate high phenotypic diversity depending on Treg subtypeCornelius Kürten, MD; Shanhong Lu; Tullia C. Bruno, PhD; Robert L. Ferris, MD, PhDBiomarkers; Checkpoint blockade; Immune contexture; Immune monitoring; Immune suppression; Regulatory T cell (Treg cell); Solid tumors; Systems biology; Tumor evasion; Tumor microenvironment
P71Characterization of tumor mutational burden (TMB) and homologous recombination repair (HRR) mutations to assess correlation with immune checkpoint inhibitors (ICIs) response in renal cell carcinomaMatthew K. Labriola, MD; Jason Zhu, MD; Rajan Gupta; Shannon J. McCall, MD; Jennifer JJ. Jackson, PhD; James White, PhD; Elizabeth Weingartner; Eric Kong; Peter Simone, Ph.D.; Eniko Papp, Ph.D.; Kelly Gerding, Ph.D.; Eun-Hae Kim, Ph.D.; John K. Simmons, PhD; Daniel J. George, MD; Tian Zhang, MD; Tian Zhang, MD; Biomarkers; Checkpoint blockade; Solid tumors
P72Biomarker and preliminary pharmacodynamic evaluations of the PD-1 inhibitor ABBV-181 from an ongoing phase 1 clinical trial in patients with advanced solid tumorsStacie L. Lambert; Gregory Vosganian, MD; Fiona Harding, PhD; James Sheridan; Stefan Englert, Dr.; Sara Siggelkow; Apurvasena Parikh, PhD; Betty Wang; Kinjal Hew; Jaishree Bankoti; Marcia Stickler; Eileen Lee; Merriam Mcclellan; Daniel Afar, PhD; Anita Reddy, PhD; Stacie L. Lambert;Biomarkers; Checkpoint blockade; Clinical trial; Solid tumors; T cell
P73Analysis of survival and mRNA expressivity in the tumor microenvironment of adenocarcinoma via K-means clustering algorithmSeongwon Lee, PhD; Andrew Baird, MD; Jillian Dolan, BS; Stuart Baird; Fateeha Furqan, MD; Shinyoung Park, MS; Sunyoung S. Lee, MD, PhD;Gene expression; Immune monitoring; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P74Validation the immune contexture as prognostic biomarkers in high-grade serous ovarian cancerShin Wha Lee, MD; Ju-hyun Kim; Soo-Jung Kim; Yong-Man KimImmune contexture; Immunoscore
P75Development of a next-generation sequencing-based microsatellite instability assay (MSI-NGS) for solid tumor testingSean T. Glenn, PhD; Sarabjot Pabla, MSc, PhD, BS; Jonathan Andreas, MS; Blake Burgher, BS, RN; Jacob Hagen; Jeffrey Conroy, BS; Mary Nesline, MS; Antonios Papanicolau-Sengos, MD; Vincent Giamo, BS, MS; Felicia L. Lenzo; Maochun Qin, MD, MS; Yirong Wang, M.S.; Mark Gardner; Carl D. Morrison, MD, DVMBiomarkers; Solid tumors
P76Analysis of the complex immune-cell milieu of tumors from patients treated with immunotherapy to better understand clinical responseShumei Kato, MD; Ryosuke Okamura; Mina Nikanjam; Ramez N. Eskander, MD; Paul Fanta, MD; Suzanna Lee; Sean T. Glenn, PhD; Devin Dressman, PhD; Sarabjot Pabla, MSc, PhD, BS; Jeffrey Conroy, BS; Mary Nesline, MS; Antonios Papanicolau-Sengos, MD; Felicia L. Lenzo; Mark Gardner; Carl D. Morrison, MD, DVM; Razelle Kurzrock, MDBiomarkers; Gene expression; Solid tumors; T cell; Tumor microenvironment
P77Identifying major immune-related subsets of GI tumors for clinical purposesAmy P. Early, MD; Sarabjot Pabla, MSc, PhD, BS; Jeffrey Conroy, BS; Mary Nesline, MS; Sean T. Glenn, PhD; Felicia L. Lenzo; Antonios Papanicolau-Sengos, MD; Blake Burgher, BS, RN; Vincent Giamo, BS, MS; Jonathan Andreas, MS; Yirong Wang, M.S.; Carl D. Morrison, MD, DVM Biomarkers; Immune monitoring; Solid tumors; Tumor microenvironment
P78More sensitive identification of T-cell receptor beta rearrangements with an augmented transcriptome methodSean M. Boyle, PhD; Eric Levy, PhD; Gabor Bartha; Pamela Milani; Robin Li; Shujun Luo; Rena McClory; John S. West, MBA; Richard ChenBioinformatics; Biomarkers; Immune monitoring; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P79Change in neutrophil to lymphocyte ratio during treatment with immune checkpoint inhibitors predicts survival in patients with advanced cancerDan Spakowicz, PhD, MS; Jarred Burkart; Sandip Patel; Marium Husain, MD, MPH; Kai He, MD, PhD; Carolyn Presley; Erin Bertino; Peter Shields; David P. Carbone, MD, PhD; Claire Verschraegen, MD; Greg Otterson; Kari Kendra; Mingjia Li, MD; Dwight Owen Biomarkers; Checkpoint blockade; Immune monitoring; Inflammation
P80Day-to-day profiling of T cell activation by measuring cellular markers and secreted cytokines in a rapid multiplexed cell/bead mixture assayZhaoping Liu, Ph.D.; Adoptive immunotherapy; Biomarkers; CAR T cells; Checkpoint blockade; Cytokine; Immune monitoring; Immune suppression; Immune tolerance; T cell; Tumor evasion
P81Germline encoded TRBV polymorphism predicts adverse events during checkpoint blockade immunotherapyTimothy Looney, PhD; Geoffrey M. Lowman, PhD; Asha Kamat, PhD; Fiona Hyland Autoimmunity; Bioinformatics; Biomarkers; Checkpoint blockade; Genetic polymorphism; Immune monitoring; Immune toxicity; T cell
P82Peripheral blood TCRB repertoire convergence and clonal expansion predict response to anti-CTLA-4 monotherapy for cancerTimothy Looney, PhD; Li Zhang, MD PhD; David Y. Oh, MD, PhD; Denise S. Topacio-Hall, BS, MA; Lawrence Fong, MDBioinformatics; Biomarkers; Checkpoint blockade; Immune contexture; Immune monitoring; T cell; T cell lineages; Tumor antigens
P83T cell receptor beta immune repertoire sequencing in several FFPE tissue types – Interrogation of the tumor microenvironment in archived tissue samplesDenise S. Topacio-Hall, BS, MA; Lauren Miller, BS; Elizabeth Linch, BS; Alice Zheng, PhD; Geoffrey M. Lowman, PhD; Timothy Looney, PhD; Mark Andersen, PhD Biomarkers; Immune monitoring; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P84Quantitative evaluation of tumor-infiltrating lymphocyte subsets and PD-L1 expression in lung cancer brain metastasesBenjamin Y. Lu, MD; Richa Gupta; Hailey Wyatt; Matthew Ribeiro; Tyler Stewart; Veronica Chiang, MD; Joseph Contessa; Adebowale Adeniran; Harriet Kluger, MD; Lucia Jilaveanu, MD; Kurt A. Schalper, MD, PhD; Sarah B. Goldberg, MD, MPH Immune monitoring; Immune suppression; Inflammation; Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P85Correlation of clinical response and pathologic treatment effect after 4 weeks of preoperative PD-1 blockade in primary head and neck squamous cell carcinoma (HNSCC)Adam Luginbuhl, MD; Jennifer Johnson, MD; Madalina Tuluc, MD; Stacey Mardekian, MD; Chandala Chitguppi, MD; Larry Harshyne, PhD; Ralph G. Zinner, MD; Joseph Curry, MD; David Cognetti, MD; Ulrich Rodeck, MD PhD; Athanassios Argiris, MD PhDCheckpoint blockade; Clinical trial; Immune monitoring; Immunoscore; Solid tumors; Surgery; Tumor microenvironment
P86T-cell receptor (TCR) repertoire features associated with disease-free survival following infusion with marrow-infiltrating lymphocytes (MILs)Eric R. Lutz, PhD; Alex Hopkins, PhD; LAKSHMI RUDRARAJU, MS; Elizabeth DeOlivera; Ido Weiss, PhD; Rachel Gittelman, PhD; Erik Yusko, PhD; Kathryn G. Boland, DVM, PhD; Ivan M. Borrello, MD; Kimberly A. Noonan, Ph.D.; Adoptive immunotherapy; Biomarkers; Immune monitoring
P87Preliminary evidence of intratumoral activation and immunomodulatory effect of CX-072, a Probody therapeutic antibody prodrug targeting PD-L1, in a phase 1/2a trialSusan K. Lyman; Judi Gordon; Amy DuPage; Preeti Pramanik; Bruce Howng; Michael B. Winter; Irina K. Popova; Olga Vasiljeva; James Jones; Kenneth R. Wong, MA; Victoria Singson; Jennifer H. Richardson, PhD; Beiyao Zheng, PhD; Mark Stroh, PhD; Lori Carman, RN; Vanessa Huels; Karen Autio, MS, MD; Valentina Boni; Daniel C. Cho, MD; Javier Garcia-Corbacho; Iván Victoria Ruiz; Omid Hamid, MD; Nataliya Uboha; Elisabeth de Vries; Anthony El-Khoueiry, MD; Alexander I. Spira, MD, PhD, FACP; Rachel E. Sanborn, MD; Fiona Thistlethwaite, MD, PhD; Hendrik-Tobias Arkenau; Johanna Bendell; Patrick A. Ott, MD, PhD; Naiyer A. Rizvi, MD; Matthias Will, MD; W. Michael Kavanaugh, MD; Aung Naing, MD, FACP; Luc R. R. Desnoyers, Ph. D.Antibody; Biomarkers; Checkpoint blockade; Clinical study; Clinical trial; Gene expression; Immune monitoring; Leukemia/Lymphoma; Solid tumors; T cell; Targeted therapy; Tumor microenvironment
P88Quantitative assessment and standardization of the programmed death 1 ligand 1 (PD-L1) immunohistochemistry companion diagnostic assaysSandra Martinez-Morilla, PhD; John McGuire; Patricia Gaule, PhD; Lauren Moore; Balazs Acs; Delphine Cougot; David L. Rimm, MD, PhD; Antibody; Biomarkers; Checkpoint blockade; Targeted therapy
P90Using artificial intelligence to predict response to immunotherapyJoseph S. Krueger, BS PhD; Karen Ryall, PhD, BS; Navi Mehra; Jenifer Caldara, BS; Will Paces, BS; Kelsey Weigel, PhDBiomarkers; Checkpoint blockade; Clinical trial; Immune contexture; Immune suppression; Immune tolerance; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P91It’s pan-o’clock: Tumor and circulating lymphocytic pan-pathology targets of the failed immune responseAnne Monette, PhD; Antigoni Morou, PhD; Nadia Al-banna; Louise Rousseau, RT; Jean-Baptiste Lattouf, MD, FRCSC; Sara Rahmati; Tomas Tokar; Daniel Kaufmann, MD; Jean-pierre Routy; Igor Jurisica, PhD; Rejean Lapointe, PhDB cell; Bioinformatics; Biomarkers; Gene expression; Immune monitoring; Solid tumors; Systems biology; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P92Predictive plasma proteomic biomarkers of immunotherapy toxicity in patients (pts) with metastatic melanoma (MM)Meghan J. Mooradian, MD; Xuesong Gu; Donald Lawrence, MD; Justine V. Cohen, DO; Tatyana Sharova; Genevieve M. Boland, MD, PhD; Towia A. Libermann; Ryan J. Sullivan, MD; Biomarkers; Immune monitoring; Immune toxicity; Proteomics; Solid tumors
P93Pre-analytical variables affect myeloid-derived suppressor cell quantitation by flow cytometryChihiro Morishima, MD; Amy E. Wright; Angela M. Riggins; Chihiro Morishima, MD; Minjun ApodacaBiomarkers; Immune monitoring; Myeloid cells; MDSC
P94Measurement of adenosine and other immunomodulators in the tumor microenvironment by in vivo microdialysisNadege Morisot, PhD; Julien Roeser, PhD; Holden Janssens, PhD; Arash Rassoulpour, PhD Biomarkers; Immune contexture; Immune monitoring; Solid tumors; Tumor microenvironment
P95Modulation of adenosine levels in the tumor microenvironment following treatment with anti-PD1 antibodies and oxaliplatin: an in vivo microdialysis studyArash Rassoulpour, PhD; Nadege Morisot, PhD; Julien Roeser, PhD; Holden Janssens, PhD Antibody; Biomarkers; Checkpoint blockade; Immune contexture; Immune monitoring; Solid tumors; Targeted therapy; Tumor microenvironment
P96Assessment of RNA turbulence and PD-L1 expression on tumor-infiltrating lymphocytes in breast cancerApoorva L. Mylavarapu, BS; Scott Morris; Maulik Patel, PharmD, PhD; Sandip P. Patel, MD Biomarkers; Gene expression; Tumor infiltrating lymphocytes (TILs)
P97Different functionality of CD8 PD-1-positive CD28-negative T cells in the periphery and in the tumor of lung cancer patientsBelinda Palermo; Ornella Franzese; Mariangela Panetta; Giulia Campo; Fabiana Cecere; Virginia Ferraresi; Gabriele Alessandrini; Francesco Facciolo; Gennaro Ciliberto, MD; Paola Nistico', MDCheckpoint blockade; Coinhibition; Costimulation; Immune monitoring; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P98High gene expression of estrogen and progesterone receptor is associated with increased T cell infiltration in patients with NSCLCMichael S. Oh, MD; Jonathan Anker, MD; Young Kwang Chae, MD; Gene expression; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P99RRx-001 is a Phase 3-Ready small molecule dual inhibitor of CD47 and SIRPalphaPedro Cabrales, PhD; Bryan Oronsky, MD PhD; Tony Reid, MD PhD; Corey A. Carter, MD; Biomarkers; Checkpoint blockade; Cytokine; Immune monitoring; Immune suppression; Monocyte/Macrophage; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion
P100Exploring dissociated human tissues as an alternative to fresh tissue for multiple downstream applicationsShawn Fahl, Ph.D.; B cell; Biomarkers; Myeloid cells; NK/NK T cell; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P101Evaluation of ctDNA mutations detected in plasma as potential correlate of immunotherapy efficacy in NSCLC patientsNamrata S. Patil, Ph.D.; Yuqiu Jiang, PhD; Wei Zou; Johnny Wu; Stephanie Yaung; Susan Flynn; Maureen Peterson; Eric Peters; Priti S. Hegde, PhD; Marcin Kowanetz, Ph.D.; John Palma; Namrata S. Patil, Ph.D.; David Shames, Ph.D.; Yuqiu Jiang, PhD; Namrata S. Patil, Ph.D.; Biomarkers; Clinical trial; Neoantigens
P102Localized measurement and clinical significance of OX40 and OX40L expression in human non-small cell lung cancer (NSCLC)Angelo Porciuncula, PhD; Micaela Morgado; Sima Zacharek, PhD; Maria Toki, MD, MSc; Kostas Syrigos; Vamsidhar Velcheti, MD FACP; Joshua Frederick, PhD; Roy S. Herbst, MD, PhD; Kurt A. Schalper, MD, PhD Costimulation; Gene expression; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P103Bulk and single-cell TCR and transcriptome profiling reveals significant phenotypic, spatial and temporal heterogeneity in the TIL repertoire of pancreatic cancer and melanoma patientsChin Leng Tan; Ignacio Heras-Murillo, MSc.; Katharina Lindner; Aaron Rodriguez Ehrenfried; Lena Appel; Anna-Katharina Koenig; Markus Buechler; Ugur Sahin, MD; Jessica Hassel; Oliver Strobel; Michael Flossdorf; Rienk Offringa, PhD; Isabel Poschke, PhDAdoptive immunotherapy; Immune contexture; Immune monitoring; Solid tumors; Systems biology; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P104Radiomic features that can predict response to PD-1 inhibitors in late-stage Non-Small Cell Lung Cancer are also associated with tissue-derived measures of immune responsePrateek Prasanna, PhD; Mohammadhadi Khorrami, PhD; Pradnya Patil; Kaustav Bera, MBBS; Vamsidhar Velcheti, MD FACP; Anant Madabhushi, PhD; Biomarkers; Immune monitoring; Tumor infiltrating lymphocytes (TILs)
P105Response to immunotherapy in hepatocellular carcinoma, a single-institutional analysisPetra Prins; Bhavana P. Singh, MD; AIwu He Biomarkers; Chemotherapy; Solid tumors; Targeted therapy
P106Multiplexed ion beam imaging (MIBI) for characterization of the tumor microenvironment (TME) across tumor types Jason Ptacek, PhD; Rachel Finck; Murat Aksoy; Jay Tarolli; Jessica Finn;Biomarkers; Immune monitoring; Immune suppression; Monocyte/Macrophage; Proteomics; Solid tumors; Systems biology; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P107A comparative study of the PD-L1 IHC 22C3 and 28-8 assays in melanoma samplesGabriel S. Krigsfeld, Ph.D.; Kim Zerba; James Novotny Jr; Shuntae Williams; Michael Matthews, M.S.; Hytham Al-Masri, PhD; David Gold; James White Antibody; Biomarkers; Checkpoint blockade; Solid tumors
P108HLA class I subtypes are associated with immune-related adverse events in patients with melanoma treated with ipilimumabAnton Safanov; John Pluta; Lu Qian; Ravi Amaravadi; Allison Applegate; Elizabeth Buchbinder, MD; Justine V. Cohen, DO; Claire Friedman, MD; Ruth Halaban, PhD; F. Stephen Hodi, Jr., MD; Christine E. Horak, PhD; Douglas B. Johnson, MD, MSCI; John M. Kirkwood, MD; Tara C. Mitchell; William A. Robinson, MD, PhD; Lynn M. Schuchter, MD; Jeffrey A. Sosman, MD; Mario Sznol, MD; Megan Wind-Rotolo, PhD; Jedd D. Wolchok, MD, PhD; Mingyao Li; Peter Kanetsky; Katherine L. NathansonAntigen presenting cells; Autoimmunity; Bioinformatics; Biomarkers; Checkpoint blockade; Genetic polymorphism; Immune toxicity; Tumor microenvironment
P109Clinical efficacy of immune checkpoint inhibitors in patients with small cell lung cancer is associated with high tumor mutational burden and development of immune-related adverse eventsBiagio Ricciuti, MD; Suzanne Dahlberg; Sasha Kravets; Safiya Subegdjo; Renato Umeton; Adem Albayrak, M.S.; Lynette M. Sholl; Mark M. AwadBiomarkers; Checkpoint blockade; Immune toxicity
P110Modular repertoire analysis of blood transcriptomic immune response in metastatic renal cell carcinoma patients treated with PazopanibDarawan Rinchai, PhD; Elena Verzoni; Agata Cova; Paola Squarcina; Loris D. Cecco; Paolo Grassi; Raffaele Ratta; Veronica Huber; Matteo Dugo; Monica Rodolfo; Jessica Roelands, Master; Damien Chaussabel; Giuseppe Procopio; Davide Bedognetti, MD, PhD; Licia Rivoltini, MD; Bioinformatics; Clinical study; Gene expression; Immune monitoring; Immune suppression; Systems biology
P111Streamlined human immune monitoring with mass cytometry: 29 markers in a single tube with automated data analysisChristina Loh, PhD; Thiru Selvanantham, PhD; Leslie Fung; Michelle M. Poulin; C. Bruce Bagwell; Margaret Inokuma; Clare Rogers, MS; Greg Stelzer, PhD; Steven Lott, PhDB cell; Bioinformatics; Biomarkers; CAR T cells; Immune monitoring; Leukemia/Lymphoma; Monocyte/Macrophage; Myeloid cells; Proteomics; T cell
P112Proteomic profiling of biomarkers for response to checkpoint immunotherapy in melanoma patientsMarijana Rucevic, PhD; Biomarkers; Checkpoint blockade; Immune monitoring; Proteomics
P113Digital spatial profiling of bone-marrow infiltrating immune cells in acute myeloid leukemia. Sergio Rutella, MD, PhD, FRCPath; Jayakumar Vadakekolathu, PhD; Sarah E. Church; Heidi Altmann; Elena Viboch, MS; Jorn Meinel, MD; Yan Liang, MD PhD; Joseph M. Beechem, PhD; Alessandra Cesano, MD, PhD; Sarah Warren, PhD; Gerhard Enhinger, MD; Marc Schmitz, MD; Martin Bornhauser, MD; Sergio Rutella, MD, PhD, FRCPath;Gene expression; Immune contexture; Immune suppression; Immune tolerance; Leukemia/Lymphoma; Monocyte/Macrophage; Tumor evasion; Tumor microenvironment
P114ImmunoINTEL, a flow cytometry based platform that identifies and quantifies the most critical cell subsets and related functional potential in dissociated solid tumorsKonstantin Salojin, PhD; Christine Hauther; Dai Liu; Santosh Putta; Norman B. Purvis, Jr., PhD; Matt Westfall, PhDBiomarkers; Immune monitoring; Immunoscore; Monocyte/Macrophage; MDSC; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P115Predictive and pharmacodynamic biomarkers associated with treatment with the oral selective AXL Inhibitor bemcentinib in combination with pembrolizumab in patients with advanced NSCLC and MelanomaRobert Holt, PhD; David Micklem, PhD; Anthony Brown; Cornelia Schuster; Oddbjørn Straume; James Lorens, PhDBiomarkers; Checkpoint blockade; Chemokine; Clinical study; Clinical trial; Coinhibition; Cytokine; Targeted therapy
P116Quantitative measurement of CD8, CD68 and PD-L1 expression in a novel multiplex assay and associations of overall survival in non-small cell lung cancer (NSCLC) patients treated with anti-PD-1 TherapyFahad S. Shabbir, MD; Jon Zugazagoitia, MD; Yuting Liu, PhD candidate; Katir K. Patel, PhD; Brian S. Henick, MD; Scott N. Gettinger, MD; Roy S. Herbst, MD, PhD; Kurt A. Schalper, MD, PhD; David L. Rimm, MD, PhDAntibody; Biomarkers; Checkpoint blockade; Immune monitoring; Monocyte/Macrophage; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P117Host immune response in undifferentiated pleomorphic sarcoma – 10-year retrospective analysisJoseph Sheridan; Andrew Horvai; Ross Okimoto; Rosanna Wustrack; Immune monitoring; Solid tumors; Surgery; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P118Immunosuppression involving MDSC and IL-17 is associated with decreased levels of serum rapid turnover protein and shorter survival in patients with gastrointestinal cancerMasahiko Shibata, MD; Kenji Gonda, MD, PhD; Takahiro Nakajima; Tatsuo Shimura; Koji Kono; Seiichi Takenoshita; Biomarkers; Cytokine; Immune suppression; Immune tolerance; Inflammation; Myeloid cells; MDSC
P119Fab-selective proteolysis coupled with liquid chromatography-mass spectrometry for monitoring therapeutic antibodies in circulationTAKASHI SHIMADA, PhD; Noriko Iwamoto, PhDAntibody; Biomarkers; Immune monitoring
P120Validated next generation sequencing assay for the characterization of the T-cell repertoire from RNAJennifer K. Sims; Martin Buchkovich, PhD; Jason Powers; Victor J. Weigman, Jr.; John Pufky; Jennifer Mason, PhD; Patrick Hurban, PhDBiomarkers; Immune monitoring; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P121Interaction of immune checkpoints in tumor-stromal microenvironment of primary and chemoreduced retinoblastomaLata Singh, Ph.D.; Mithalesh K. Singh; Seema Kashyap; Seema Sen, MD; Moshahid A. Rizvi, PhD; Chemotherapy; Pediatric tumors; Tumor microenvironment; Tumor stroma
P122Validated next generation sequencing RNA-based assay of the IGHV mutation status and repertoire diversityJeran Stratford; Jennifer K. Sims; Patrick Hurban, PhD; Victor J. Weigman, Jr.; Antibody; B cell; Bioinformatics; Biomarkers; Immune monitoring
P123Peripheral blood lymphocyte responses in patients with renal cell carcinoma treated with high-dose interleukin-2Rupal Bhatt, MD, PhD; Lei Sun, Ph.D; William J. Slichenmyer, MD; Sean Rossi; Juan C. Alvarez, PhD; Wenxin Xu, MD; Heather C. Losey, PhDBiomarkers; Cytokine; NK/NK T cell; Regulatory T cell (Treg cell); Solid tumors; T cell
P124Quantitative multichannel immunofluorescence imaging to assess the immune composition of the T cell-inflamed tumor microenvironment in bladder cancerRandy F. Sweis, MD; Ken Hatogai; Danny Kim; Yuanyuan Zha, PhD; Alexander T. Pearson, MD, PhD; Gary D. Steinberg, MD; Thomas F. Gajewski, MD, PhD; Antigen presenting cells; Biomarkers; Checkpoint blockade; Dendritic cell; Immune contexture; Immune monitoring; Inflammation; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P125DNA methylation biomarkers for noninvassive detection of hepatocellular carcinomaDavid J. Taggart, PhD; Dhruvajyoti Roy, PhD; Gen Li; Dan Liu; Lianghong Zheng; Kang Zhang; Biomarkers; Clinical study; Solid tumors
P126Peripheral immune monitoring identifies biomarkers of response and toxicity after neoadjuvant combination immunotherapy with ipilimumab (ipi) and high dose IFNα2b (HDI) in patients with melanomaAhmad A. Tarhini, MD, PhD; Ghanashyam Sarikonda; Arjun Khunger, MD; Jack El-Sawada, MD; Christian Laing; Christine A. Vaupel, PhD; Naveen DakappagariBiomarkers; Checkpoint blockade; Clinical study; Clinical trial; Cytokine; Immune monitoring; MDSC; Regulatory T cell (Treg cell); Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P127Characterization of changes in tumor immune microenvironment after treatment with neoadjuvant combination immunotherapy with ipilimumab (ipi) and high dose IFNα2b (HDI) in patients with melanomaArjun Khunger, MD; Jennifer Bordeaux, PhD; Ju Young Kim; Christine A. Vaupel, PhD; Naveen Dakappagari; Ahmad A. Tarhini, MD, PhDBiomarkers; Checkpoint blockade; Immune monitoring; MDSC; Regulatory T cell (Treg cell); Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P128Multiplexed immunofluorescent assay development for study of the PD-1/PD-L1 checkpoint in the tumor immune microenvironment (TIME)Sneha Berry, MS; Nicolas A. Giraldo, MD PhD; Peter Nguyen, MS; Benjamin Green, BS; Haiying Xu; Aleksandra Ogurtsova; Abha Soni, DO; Farah Succaria, MD; Daphne Wang, MS; Charles Roberts; Julie E. Stein, MD; Elizabeth L. Engle, MSc; Drew M. Pardoll, MD, PhD; Robert A. Anders, MD, PhD; Tricia Cottrell, MD, PhD; Janis M. Taube, MD, MSCBiomarkers; Checkpoint blockade; Solid tumors; Tumor microenvironment
P129Simultaneous single cell analysis of multiple analytes resolves T cell populations at high resolutionSarah Taylor, PhD; Katherine A. Pfeiffer; Michael JT. Stubbington, PhD; Josephine Y. Lee; Jerald Sapida; Liselotte Brix, phd; Kivin KJ. Jacobsen, PhD; Bertrand Yeung; Xinfang Zhao; Tarjei Mikkelsen; Deanna M. Church, PhDAntigen presenting cells; Gene expression; Immune monitoring; Neoantigens; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P130A measurable immune response in the tumors and lymph nodes of patients with lymph node positive and lymph node negative breast cancer.Archana Thakur, PhD; Dana L. Schalk; Tayson Lin; Griffin R. Calme, B.S.; Johnson Ung; Lawrence G. Lum, MD, DSc; Lydia ChoiBiomarkers; Immunoscore; T cell; Tumor infiltrating lymphocytes (TILs)
P131High-plex predictive marker discovery for melanoma immunotherapy treated patients using NanoString® Digital Spatial ProfilingMaria Toki, MD, MSc; Pok Fai Wong, MD, MPhil; James W. Smithy, MD, MHS; Harriet Kluger, MD; Chris Merritt, PhD; Giang Ong, MS; Sarah Warren, PhD; Joseph M. Beechem, PhD; David L. Rimm, MD, PhDBiomarkers; Checkpoint blockade; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P132RNA sequencing of rare antigen-specific T cells and tissue micro-regions using the RareCyte platformLance U'Ren, DVM, PhD; Rebecca Podyminogin; Nolan Ericson; Eric Kaldjian, MD; Tad George, PhDBiomarkers; Immune contexture; Immune monitoring; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P133Spatially resolved and multiplexed immunoprofiling of NSCLC using imaging mass cytometry reveals distinct functional profile of CD4 and CD8 TILs associated with response to immune checkpoint blockersFranz Villarroel-Espindola, Ph.D.; Miguel F. Sanmamed, MD, PhD; Jonathan Patsenker; Ya-Wei Lin; Brian S. Henick, MD; Jovian Yu; Mark Verburg; Tayf Badri; Jon Zugazagoitia, MD; Daniel E. Carvajal-Hausdorf, MD; Ruth Montgomery, Ph.D.; Roy S. Herbst, MD, PhD; Lieping Chen, MD, PhD; David L. Rimm, MD, PhD; Tal Shnitzer, Ph.D.; Ronen Talmon, Ph.D.; Yuval Kluger, Ph.D.; Kurt A. Schalper, MD, PhD; Antibody; Biomarkers; Checkpoint blockade; Immune contexture; Immune monitoring; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P134Prognostic and predictive value of baseline biomarkers in advanced non-small cell lung cancer (NSCLC)Huifen Wang, PhD; Robert McEwen; Ketan Patel, PhD; Binbing Yu; J Carl Barrett; Kris Sachsenmeier, PhDAdoptive immunotherapy; Biomarkers
P135Integrative genomic and proteomic analysis identifies cancer subtypes and signaling networks associated with aberrant tumor expression of VISTADuncan Whitney, PhD; Anna W. Ma, MS; Ramachandra Mu. Katabathula, Ph.D.; Timothy Wyant; Jefferson Parker; Salendra Singh, MS; David Tuck; Vinay Varadan, PhD;Bioinformatics; Biomarkers; Checkpoint blockade; Gene expression; Immune suppression; Tumor stroma
P136Genetic immunosignatures associate with progression-free survival in advanced soft tissue sarcoma patients treated on a Phase 2 trial of the VEGF receptor inhibitor axitinib plus pembrolizumabBreelyn A. Wilky, MD; SuFey Ong; Sarah Warren, PhD; Alessandra Cesano, MD, PhD; Despina Kolonias; Eric Wieder, PhD; Deukwoo Kwon, PhD; Andrew Rosenberg, MD; Jonathan C. Trent, MD, PhD; Krishna Komanduri, MDAngiogenesis; Biomarkers; Checkpoint blockade; Clinical trial; Gene expression; Solid tumors
P137A systematic literature review (SLR) of tumor mutational burden (TMB) and efficacy with immunotherapy (IO) in lung cancerConnor Willis, PharmD; Michelle Fiander; Dao Tran, PharmD; Beata Korytowsky; John-michael Thomas, PharmD; Signe Fransen; Florencio Calderon; Teresa Zyczynski; Lisa Siegartel; Diana Brixner; David Stenehjem; Connor Willis, PharmD; Biomarkers; Checkpoint blockade; Solid tumors
P138Quantitative assessment of cancer-associated fibroblasts and immunotherapy outcome in metastatic melanomaPok Fai Wong, MD, MPhil; Wei Wei, MD, PhD; Swati Gupta, PhD; James W. Smithy, MD, MHS; Harriet Kluger, MD; David L. Rimm, MD, PhDBiomarkers; Checkpoint blockade; Clinical study; Solid tumors; Tumor microenvironment; Tumor stroma
P139Pharmacodynamic effects of CA170, a first-in-class small molecule oral immune checkpoint inhibitor (ICI) dually targeting V-domain Ig suppressor of T-cell activation (VISTA) and PD-L1Timothy L. Wyant, PhD; Hongwei Wang, MD, PhD; David Tuck; Yung-Jue Bang, MD PhD; Anna W. Ma, MS; Jeffrey A. Sosman, MD; Adil Daud, MBBS MD; John D. Powderly, II, MD, CPI; Javier Garcia-Corbacho; Manish R. Patel, MD; James J. Lee, MD, PhD; Kyu-Pyo Kim; Joshua Brody, MD; Sun Young Rha; Erika P. Hamilton, MD; Marta Gil Martin; Santiago Ponce Aix, MD; Radhakrishnan Ramchandren, MD; Myung-Ju Ahn; James Spicer, MD, PhD; Simon Pacey; Gerald S. Falchook, MD; Funda Meric-Bernstam, MDBiomarkers; Checkpoint blockade; Clinical trial; Immune monitoring; Immune suppression; T cell; Tumor infiltrating lymphocytes (TILs)
P140Deep profiling of Asian NSCLC to identify the tumor antigen-specific T cells and the predictive potential of the patients treated with PD-1/PD-L1 blockadeJoe P. Yeong, MBBS, PhD; Lisda Suteja; Yannick Simoni; Kah Weng Lau; Sherlly Lim; Jie Hua, Josh Loh; Angela Takano; Eng Huat Tan, MD; Kiat Hon, Tony Lim; S. W., Daniel Tan; Evan W. Newell, PhD; Adoptive immunotherapy; Biomarkers; Checkpoint blockade; Immune monitoring; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P141Circulating tumor DNA ( ctDNA) a novel biomarker for immunotherapy response in advanced lung cancerEbenezer O. Appah, MD; Katherine B. Neblett; Clive D. Morris; Greg Jones; Vincent Plagnol; Paul R. Walker, MD; Meera Yogarajah, MDCheckpoint blockade; Immune monitoring
P142The immunogenomic impact of indoximod on the tumor microenvironment of melanoma patientsJiayi Yu, PhD; Gabriela R. Rossi, PhD; Ravindra Kohle, MD, PhD; David H. Munn, MD; Yousef Zakharia, MD; Nicholas Vahanian, MD; Eugene P. Kennedy, MD, FACS; Charles Link, Jr., MDBiomarkers; Checkpoint blockade; Clinical study; Clinical trial; Immune monitoring; Solid tumors; Tumor microenvironment
P143Rational combination of GITR agonism with PD-1 blockade in cancer patientsRoberta Zappasodi, PhD; Cynthia Sirard, MD; Yanyun Li, PhD MD; Sadna Budhu, PhD; Moshen Abu-Akeel; Cailian Liu, MD; Xia Yang; Hong Zhong, BS; Walter Newman, PhD; Jingjing Qi; Phillip Wong, PhD; David Schaer; Henry Koon, MD; Vamsidhar Velcheti, MD FACP; Michael Postow, MD; Margaret K. Callahan, MD, PhD; Jedd D. Wolchok, MD, PhD; Taha Merghoub, PhD; Biomarkers; Checkpoint blockade; Costimulation; Immune monitoring; Immune suppression; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion
P144A fully-automated multiplex fluorescence IHC assay with whole slide multispectral imaging on mouse tissue: phenoptics™ quantitative pathology solutions translational workflow Yi Zheng, PhD; Carla Coltharp, PhD; Ryan Dilworth, PhD; Rachel Schaefer; Linying Liu; Victoria Duckworth; William Kennedy; Darryn Unfricht, PhD; Peter Miller, MS; Milind Rajopadhye, PhD; Biomarkers; Regulatory T cell (Treg cell); Solid tumors; Systems biology; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment; Tumor stroma
P145Computational assessment of IDO1 feedback modulationJIAN ZHU, PhD; Rebecca L. ZhuBioinformatics; Biomarkers; Immune suppression; MDSC; NK/NK T cell; Regulatory T cell (Treg cell); Systems biology; Tumor infiltrating lymphocytes (TILs)
P146Cell proliferation improves prediction for immune checkpoint inhibitors (ICIs) response in PD-L1 positive TMB high non-small cell lung cancer (NSCLC)Jason Zhu, MD; Matthew K. Labriola, MD; Daniele Marin, MD; Shannon J. McCall, MD; Edwin Yau, MD, PhD; Grace K. Dy; Sarabjot Pabla, MSc, PhD, BS; Sean T. Glenn, PhD; Carl D. Morrison, MD, DVM; Daniel J. George, MD; Tian Zhang, MD; Jeffrey M. Clarke, MDBiomarkers; Checkpoint blockade; Solid tumors; Tumor microenvironment
P147Quantitative assessment of co-expression of PD-L1 and CMTM6 in the tumor microenvironment in non-small cell lung cancer (NSCLC) patients treated with PD-1 pathway blockadeJon Zugazagoitia, MD, PhD; Fahad S. Shabbir, MD; Yuting Liu, PhD candidate; Brian S. Henick, MD; Scott N. Gettinger, MD; Roy S. Herbst, MD, PhD; Kurt A. Schalper, MD, PhD; David L. Rimm, MD, PhD; Biomarkers; Checkpoint blockade; Tumor microenvironment; Tumor stroma
P148Viral based vaccine for personalized neoantigen-directed cancer therapiesChristian Ottensmeier, MD PhD FRCP; Natalia Savelyeva; Katy McKann; Chuan Wang; Jason Greenbaum; Finn C. Nielsen; Chantal Hoffmann; Huguette Schultz; Nathalie Silvestre; Jean-Baptiste jb. Marchand, pHD; Maud Brandely-Talbot, MD, PhD; Eric Quemeneur, PharmD, PhD; Kaidre Bendjama, .; Kaidre Bendjama, .Bioinformatics; Biomarkers; Immune adjuvant; Neoantigens; T cell; Tumor antigens
P149A phase I study of the safety and immunogenicity of a multi-peptide personalized genomic vaccine in the adjuvant treatment of solid tumors and hematological malignanciesAna B. Blazquez, PhD; Alexander Rubinsteyn, PhD; Julia Kodysh, MSc; John Finnigan; Thomas U. Marron, MD PhD; Rachel L. Sabado, PhD; Marcia Meseck, MS, JD; Timothy O'Donnell; Jeffrey Hammerbacher, BA; Michael Donovan; John Holt; Millind Mahajan; John Mandeli, PhD; Krysztof Misiukiewicz; Eric Genden; Brett Miles, DDS MD; Hooman Khorasani; Peter Dottino; Hanna Irie; Amy Tiersten, MD; Elisa Port; Andrea Wolf, MD; Hearn J. Cho, MD, PhD; Ashutosh Tewari, MD; Samir Parekh, MD; Sujit Nair; Matthew D. Galsky, MD; William K. Oh, MD; Sacha Gnjatic, PhD; Eric Schadt; Philip Friedlander, MD PhD; Nina Bhardwaj, MD, PhD; Nina Bhardwaj, MD, PhD; Clinical trial; Immune adjuvant; Immune monitoring; Solid tumors; T cell; Tumor antigens; Vaccine
P150A Phase II open labeled, randomized study of poly-ICLC matured dendritic cells for NY-ESO-1 and Mean-A peptide vaccination compared to Montanide, in melanoma patients in complete clinical remissionAnna C. Pavlick, MD, MBA; Ana B. Blazquez, PhD; Marcia Meseck, MS, JD; Michael Donovan; Mireia Castillo-Martin; Tin Htwe Thin, Ph.D.; Rachel L. Sabado, PhD; John Mandeli, PhD; Sacha Gnjatic, PhD; Philip Friedlander, MD PhD; Nina Bhardwaj, MD, PhDClinical trial; Dendritic cell; Immune adjuvant; Immune monitoring; Solid tumors; T cell; TLR; Vaccine
P151Improving neoantigen identification for therapeutic and diagnostic use in immuno-oncology using mass spectrometry and machine learningSean M. Boyle, PhD; Eric Levy, PhD; Gabor Bartha; Jason Harris; Rena McClory; John S. West, MBA; Richard ChenImmune monitoring; Neoantigens; Proteomics; Solid tumors; Tumor microenvironment
P152Nanofluidic drug-eluting seed for sustained intratumoral immunotherapy for cancer treatmentYing Xuan Chua, PhD; Antonia Susnjar; Jeremy Ho; Jessica R. Rhudy; Priya Jain, B.S.; Marco Folci; Andrea Ballerini; Shailbala Singh; Carly S. Filgueira, Ph.D.; Cassian Yee, MD; Brian Butler; Alessandro GrattoniAntibody; Solid tumors; Tumor infiltrating lymphocytes (TILs)
P153Vaccination with HSP70iQ435 DNA elicits a broad, functional antibody response that may contribute to tumor control of melanomaCormac Cosgrove, PhD; I Caroline Le Poole; Emilia Dellacecca; Steven W. HenningAntibody; Autoimmunity; Dendritic cell; T cell; Vaccine
P154Empiric profiling of neoantigen-specific T cell responses in NSCLC patients with ATLAS™ reveals unexpected neoantigen and inhibitory antigen profilesKyle Ferber, PhD, BS; Michael O'Keeffe; Crystal Cabral, BS, MSc; Christopher Warren; Erick Donis; Mariya Croll, MS; James Loizeaux; Melissa W. Hayes, PhD; James Perry; Wendy Broom, PhD; Pamela Carroll; Jessica B. Flechtner, PhD; Jason R. Dobson, PhD, BS; Antigen presenting cells; Dendritic cell; Neoantigens; Regulatory T cell (Treg cell); T cell; Tumor antigens
P155A DNA-based CSPG4 cancer vaccine designed by SynCon® technology is highly immunogenic and extends survival in a mouse model of melanomaBradley Garman, MS; Bradley Garman, MS; Jewell N. Walters, BS PhD; Elizabeth K. Duperret, BS, PhD; Aspen Trautz; Jaemi Chu; Jian Yan, BS PhD; Laurent M. Humeau, BS, MS, PhD; David B. Weiner, BS, MS, PhDAngiogenesis; Checkpoint blockade; Immune tolerance; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Vaccine
P156Developing a cross-reactive heteroclitic peptide cancer vaccine targetting poorly immunogenic mutant calreticulin in myeloproliferative neoplasmsMathieu Gigoux, PhD; Shannon Elf, Ph.D.; Michele Ciboddo; Roberta Zappasodi, PhD; Stephane Pourpe, M.Sc.; Nouran Abdelfattah, M.Sc.; Timothy A. Chan, MD, PhD; Omar Abdel-Wahab, M.D.; Ann Mullally, M.D.; Taha Merghoub, PhD; Jedd D. Wolchok, MD, PhDAntigen presenting cells; Neoantigens; T cell; Tumor antigens; Vaccine
P157ISA101 and nivolumab for HPV-16+ Cancer: Updated clinical efficacy and immune correlates of responseBonnie S. Glisson; Erminia Massarelli, MD, PhD, MS; William William, MD; Faye M. Johnson, MD, PhD; Renata Ferrarotto, MD; Ming Guo; Lei Feng; J Jack Lee; Hai Tran; Jaime Rodriguez-Canales, MD; Tomas Zecchini Barrese; Ignacio Wistuba, MD; Jing Wang; Sjoerd H. van der Burg, PhD; Kimal Rajapakshe, PhD; Cornelis J. Melief, MD, PhD; Michael A. Curran, PhD; Biomarkers; Checkpoint blockade; Clinical trial; Gene expression; Immune contexture; Solid tumors; Tumor infiltrating lymphocytes (TILs); Vaccine
P158IFN-α and 5’-Aza-2’-deoxycytidine enhance the anti-tumor efficacy of a dendritic-cell targeting MIP3α-Gp100-Trp2 DNA vaccine by affecting T-cell recruitment and tumor microenvironment gene expressionJames Gordy, PhD; Richard Markham, BS MDChemokine; Cytokine; Dendritic cell; Gene expression; Immune adjuvant; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment; Vaccine
P159Correlation between response and HLA type in a randomized phase IIb trial of NeuVax + trastuzumab in HER2 low-expressing breast cancer patients to prevent recurrenceAnnelies T. Hickeron; Guy T. Clifton, MD, FACS; Tommy Brown, MD; John W. Myers, III, MD; Jessica L. Campf, MD; Kaitlin Peace, MD; Jennifer K. Litton; Rashmi Murthy; Timothy J. Vreeland, BS MD; Diane F. Hale, MD; Garth S. Herbert, MD; Jason Lukas, MD/PhD; Nicholas J. Sarlis; Jarrod P. Holmes; Elizabeth A. Mittendorf; George E. Peoples, MD, FACSAntigen presenting cells; Clinical trial; Solid tumors; T cell; T cell lineages; Vaccine
P160Engineering a T cell stimulating extra-cellular matrix for immunotherapyJohn Hickey, BS; Yi Dong; Hai-Quan Mao, PhD; Jonathan P. Schneck, MD, PhD; Adoptive immunotherapy; Antigen presenting cells; Costimulation; Neoantigens; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment; Tumor stroma
P161The effects of IGF-1R antisense on cells of the glioma tumor microenvironment promotes immunostimulatory antigen releaseRhonda Kean, MS; Aurore LeBrun, PhD; Emily Bongiorno; David W. Andrews, MD; D. Craig Hooper, PhD; Samantha A. Garcia, PhDDendritic cell; Immune adjuvant; Monocyte/Macrophage; Metabolism; Solid tumors; T cell; Tumor antigens; Tumor microenvironment; Vaccine
P162Single cell sequencing to identify TCRs that recognize autologous tumor cells after vaccination with allogeinic DRibble vaccineHong-Ming Hu, PhD; Christopher C. Paustian, PhD; Zhifa Wen; Tarsem L. Moudgil, MS; Traci L. Hilton, PhD; Sam Bookhardt, BA; Guangjie Yu; Eric Tran, PhD; Venkatesh Rajamanickam; Walter J. Urba, MD, PhD; Rachel E. Sanborn, MD; Bernard A. Fox, PhDImmune monitoring; T cell; Tumor infiltrating lymphocytes (TILs); Vaccine
P163Humoral immune responses elicited by Globo H vaccine and the impact of Globo H expression levels on clinical response to Globo H vaccine in metastatic breast cancerJung-Tung Hung; I-Ju Chen; Wei-Chien Tang; Shir-Hwa Ueng; Tsai-Hsien Hung; Fei-Yun Lo; Hope Rugo, MD; Chiun-Sheng Huang; Alice L. Yu, MD, PhDAntibody; Clinical trial; Immune monitoring; Solid tumors; Tumor antigens; Vaccine
P164Personalized cancer vaccines based on peptide-TLR-7/8a conjugates induce CD8 T cell responses to neoantigens in primates that are dependent on TLR-7/8a potencyAndrew S. Ishizuka, DPhil; Andrei Ramirez-Valdez; Hide Yamane, PhD; Yaling Zhu, PhD; Vincent Coble; Faezzah Baharom; Kennedy Tobin; Brennan Decker; Geoffrey Lynn; Robert A. Seder, MDBioinformatics; Immune adjuvant; Neoantigens; T cell; T cell lineages; TLR; Tumor antigens; Vaccine
P166Ex vivo ATLAS-identified inhibitory neoantigens promote mouse melanoma tumor progressionHanna Starobinets, PhD; Kyle Ferber, PhD, BS; Jason R. Dobson, PhD, BS; Michael O'Keeffe; Crystal Cabral, BS, MSc; Matthew Lanchantin, BS; Erick Donis; Peri Matatia; Erik Carter; Adrienne Li, PhD; James Loizeaux; Jamie Foti, PhD; Wendy Broom, PhD; Pamela Carroll; Paul Kirschmeier; Jessica B. Flechtner, PhD; Hubert Lam, PhD; Antigen presenting cells; Dendritic cell; Immune adjuvant; Monocyte/Macrophage; Neoantigens; Regulatory T cell (Treg cell); T cell; Targeted therapy; Tumor antigens
P167Characterization of antigen specific immune responses from a first-in-human study evaluating the anti-ASPH cancer vaccine SNS-301 in biochemically relapsed prostate cancer patientsMichael S. Lebowitz, PhD; Kanam Malhotra; M S. Walker; Hong Dai, MD, PhD; Steven Fuller, PhD; Amir Shahlaee, MD; James J. Elist, MD; Neal Shore, MD; Luke T. Nordquist, MD, FACP; Hossein A. Ghanbari, PhDB cell; Clinical study; Immune tolerance; NK/NK T cell; Solid tumors; T cell; Tumor antigens
P168Induction of chemokine receptor and suppression of inhibitory receptors of CD8 T cell controlled effectively cervicovaginal tumor in mouseDaewoo Lee, MD; Daeun Nam; Sungjong Lee, PhD, MD; Chemokine; Immune suppression; T cell; Tumor infiltrating lymphocytes (TILs); Vaccine
P169In-Depth Characterization of Immune Responses Induced Against Patient-Specific Neoantigens using NEO-STIM™Brian McCarthy; Divya R. Lenkala; Michael Nelson; Rachel Debarge; Janani Sridar; Yusuf S. Nasrullah, Master's in Biological Research, United Kingdom; Jessica Kohler, PhD; Matthew J. Goldstein, MD, PhD; Richard B. Gaynor, MD; Marit M. Van Buuren, PhD; Adoptive immunotherapy; Antigen presenting cells; Bioinformatics; Dendritic cell; Neoantigens; T cell
P170Identification of breast cancer neoantigens exposed by radiation therapyClaire Lhuillier, PhD; Nils-Petter Rudqvist, PhD; Takahiro Yamazaki, PhD; Tuo Zhang, PhD; Lorenzo Galluzzi, PhD; Sandra Demaria, MDNeoantigens; Radiotherapy; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Vaccine
P171Safety and immunogenicity of a DNA vaccine encoding PSA and PSMA in patients with biochemically recurrent prostate cancerNeal Shore, MD; Elisabeth Heath; Matthew P. Morrow, PhD; Kimberly Kraynyak, BS PhD; Kamal Bhatt, LCEH MS; Trevor McMullan; Jessica Lee, MS, MPH; Brian Sacchetta; Samantha Rosencranz; Ildiko Csiki, BS MD, PhD; Mark Bagarazzi, MD; Li Liu, PhD; Clinical study; T cell; Vaccine
P172Personalized cancer vaccines based on self-assembling nanoparticles co-delivering peptide antigens and TLR-7/8 agonists (SNP-7/8a) enhance the breadth and magnitude of anticancer CD8 T cell immunityGeoffrey Lynn; Faezzah Baharom; Yaling Zhu, PhD; Ramiro A. Ramirez-Valdez, BA Cantab; Tobin Kennedy; Vincent Coble; Brennan Decker; Hide Yamane, PhD; Andrew S. Ishizuka, DPhil; Robert A. Seder, MDImmune adjuvant; T cell; Targeted therapy; TLR; Tumor antigens; Vaccine
P173Early results of a phase I clinical trial of a HER2 dendritic cell cancer vaccineHoyoung Maeng, MD; Lauren V. Wood, MD; Lee England, PA-C; Brenda Roberson, BSN, RN, OCN; Santhana Webb; Brittni Moore; David F. Stroncek, MD; John C. Morris, MD; Jay A. Berzofsky, MD, PhD; Antigen presenting cells; Clinical trial; Dendritic cell; Solid tumors; Targeted therapy; Tumor antigens; Vaccine
P174A phase 1/2a study to evaluate the safety, tolerability, immunogenicity, and anti-tumor activity of GEN-009 adjuvanted neoantigen vaccine in adult patients with selected solid tumorsRoger Cohen; Michael S. Gordon, MD; Wendy Hill; Lisa K. McNeil, PhD; Tingting Ge, PhD; Arthur P. DeCillis, MD; Melissa L. Johnson, MD; Mark Awad, MD PhD; Antigen presenting cells; Checkpoint blockade; Clinical study; Cytokine; Neoantigens; Solid tumors; T cell; Targeted therapy; Tumor antigens; Vaccine
P175Targeting arginase in tumor microenvironmentEvelina Martinenaite, MSc; Shamaila Munir Ahmad; Simone Kloch Bendtsen, M.Sc; Mia Aaboe Jørgensen; Stine Emilie Weis-Banke; Inge Marie Svane, MD; Mads H. Andersen, PhDAutoimmunity; Dendritic cell; Immune suppression; Immune tolerance; Inflammation; Monocyte/Macrophage; Myeloid cells; MDSC; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Vaccine
P176Identification and analysis of critical immune molecules and signaling pathways to improve the immunogenicity of dendritic cell vaccinesDeena M. Maurer, MS; Patricia M. Santos, PhD; John M. Kirkwood, MD; Ahmad A. Tarhini, MD, PhD; Hussein A. Tawbi, MD, PhD; David F. Stroncek, MD; Ping Jin, PhD; Lisa H. Butterfield, PhD; Antigen presenting cells; Checkpoint blockade; Costimulation; Dendritic cell; Metabolism; Targeted therapy; Vaccine
P177Boosting T cell immunity against IDO1: Proof of concept for a novel cancer vaccine approachAlexander J. Muller, PhD; Souvik Dey, PhD; Erika Sutanto-Ward, BS; Katharina L. Kopp, BS; Mai-Britt Zocca, PhD; Ayako W. Pedersen, PhD; Mads H. Andersen, PhDImmune contexture; Metabolism; T cell; T cell lineages; Tumor microenvironment; Vaccine
P178Identification of shared phosphopeptide tumor targets in colorectal carcinoma for novel off-the-shelf vaccine developmentPaisley T. Myers, PhD; Erin D. Jeffery, PhD; Benjamin Morin, PhD; Christine Brittsan, MA; Bishnu Joshi; Antoine Tanne, PhD; Karen Smith, BS; Albert Hurwitz; Kara L. Cummings, PhD; Amanda M. Lulu; Daniel L. Levey, PhD; Linh Mach; Mark A. Findeis, PhD; Gayle C. Hunt, PhD; Jeffrey Shabanowitz, PhD; Donald F. Hunt, PhD; Arthur A. Hurwitz; Robert N. Stein, MD PhD; Alex Duncan, PhD; Dennis Underwood, PhDEpidemiology; Neoantigens; Solid tumors; Targeted therapy; Tumor antigens; Vaccine
P179Use of Jurkat T cells for high throughput screening of chimeric antigen receptor constructsScott McComb, Ph.D; Risini D. Weeratna, PhD; Tina Nguyen, Ph.D.CAR T cells; T cell
P180From infectious disease to personalized cancer vaccines: Integrated CD4, CD8, and regulatory T cell neo-epitope screening platform for the design of safe and customized vaccinesGuilhem Richard, PhD; Randy F. Sweis, MD; Leonard Moise, PhD; Matthew Ardito, BA; William Martin, BA MD; Gad Berdugo, MSc, MBA; Gary D. Steinberg, MD; Anne S. de Groot, MDAntigen presenting cells; Bioinformatics; Biomarkers; Immune tolerance; Neoantigens; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor antigens
P181Pseudocowpox virus (PCPV), a potent tumor antigen-independent viral vector for cancer immunotherapy Karola Rittner, PhD; Caroline Tosch, engineer; Thioudellet Christine; Christelle Remy-Ziller, Engineer; Marie-Christine Claudepierre, Ms; Benoit Sansas; Johann Foloppe; Philippe Erbs; Kaïdre Bendjama; Eric Quemeneur, PharmD, PhD; Chemokine; Cytokine; Monocyte/Macrophage; Tumor antigens; Tumor microenvironment; Vaccine
P182Identification of prevalent immunogenic tumor antigens in microsatellite unstable patients with uterine corpus endometrial carcinoma.Vladimir Roudko, PhD; Cansu Cimen Bozkus, PhD; Orfanelli Theofano, MD; Stephanie V. Blank, MD; Benjamin D. Greenbaum, PhD; Nina Bhardwaj, MD, PhDBioinformatics; Biomarkers; Neoantigens; Vaccine
P183Immunogenicity and specificity of neoantigens derived from tumor-specific mutations in gastric cancerTetsuro Sasada, MD, PhD; Junya Ohtake; Susumu Iizumi; Taku Kouro, MD, PhD; Yuka Igarashi; Mamoru Kawahara; Erika YadaNeoantigens; Solid tumors; T cell; Tumor antigens; Vaccine
P184High tumour burden mandates a cancer vaccine targeting many neoantigens combined with check point inhibitionElisa Scarselli, MD; Anna Morena D'Alise; Guido Leoni; Gabriella Cotugno; Fulvia Troise; Francesca Langone; Imma Fichera; Maria De Lucia; Rosa Vitale; Adriano Leuzzi; Veronica Bignone; Elena Di Matteo; Fabio Tucci; Lidia Avalle; Valeria Poli; Armin Lahm; Maria Teresa Catanese; Antonella Folgori; Stefano Colloca; Alfredo Nicosia; Elisa ScarselliCheckpoint blockade; Neoantigens; T cell; Tumor infiltrating lymphocytes (TILs); Vaccine
P185CUE-101, a novel Fc fusion protein comprised of HLA-A*0201-bound HPV16 E7 peptide and IL-2, for selective targeting and expansion of anti-tumor T cells for treatment of HPV-driven malignanciesMary C. Simcox, Ph.D.; Steven N. Quayle; Dharma R. Thapa, Ph.D.; Sandrine Hulot, Ph.D.; Alyssa Nelson, B.S.; Lauren Kraemer, B.S.; Zohra Merazga, M.S.; Robert Ruidera, MSc; Dominic Beal, Ph.D.; Gurpanna Saggu, Ph.D.; Maria Hackett, MSc; Mark Haydock, B.S.; Jonathan Soriano, MSc; Joey Lee; Luke Witt, B.S.; Kelly Malone; Jessica Ryabin, B.S.; Simon Low, MSc; Natasha Girgis, Ph.D.; Emily Spaulding, Ph.D.; John F. Ross, Ph.D.; Anish Suri, Ph.D.; Rodolfo Chaparro, Ph.D.; Ronald Seidel, Ph.D.; Kenneth J. Pienta, MD; Costimulation; Cytokine; Solid tumors; T cell; Targeted therapy; Tumor antigens; Vaccine
P186A multi-center study of hTERT immunotherapy in adults with solid tumors at high risk of relapse post-standard therapy: updated results from complete patient setAnthony F. Shields, MD PhD; Autumn J. McRee, MD; Jennifer Johnson, MD; Weijing Sun, MD, FACP; Ashish Chintakuntlawar, MBBS, PhD; Naseem Prostak, BS MS; Kimberly Kraynyak, BS PhD; Matthew P. Morrow, PhD; Jeffrey M. Skolnik, MD; Robert H. Vonderheide, MD, DPhilClinical study; Solid tumors; T cell; Targeted therapy; Tumor antigens
P187Preclinical evidence for the potency and tumor selective activation of a novel EpCAM-CD3 Protease-Triggered Immune Activator (ProTIA) T-cell bispecific therapeuticBee-Cheng Sim; Desiree Thayer; Fan Yang; Tillman Pearce, MD; Zach Lange; Ulrich Ernst, PhD; Volker SchellenbergerAntibody; Immune toxicity; Solid tumors; T cell; Targeted therapy; Tumor evasion; Tumor microenvironment
P188Patient’s autologous T cells recognize tumor specific neoantigens in PDX models of ovarian cancerMuzamil Y. Want, PhD; Anna Konstorum, PhD; Ruea-Yea Huang, PhD; Richard C. Koya, MD, PhD; Sebastiano Battaglia, PhDAdoptive immunotherapy; Bioinformatics; Neoantigens; T cell
P189A phase 1 study of safety and tolerability of AutoSynVax™ vaccine in patients with advanced cancer.Robert Wesolowski, MD; Breelyn A. Wilky, MD; Allison O'Neill; Ana M. Gonzalez, MD PhD; Elise E. Drouin, PhD; Edward Dow; Mohamed Uduman; Antoine J. Tanne; Maria Agarwal, PhD; Bishnu Joshi; Benjamin Morin, PhD; Mark A. Findeis, PhD; Sandra Craig; Igor Proscurshim, MD; Ricardo Soto; Jennifer S. Buell, PhD; Robert N. Stein, MD PhD; John C. Castle; Daniel L. Levey, PhDClinical study; Solid tumors; Tumor antigens; Vaccine
P190Identification of antigenic epitopes of EGFR for lung cancer vaccine developmentJuhua Zhou, PhD; Ge Guo; Jianzhong Zhang; Shaoyan Huang; Yanmin LiBioinformatics; Cytokine; Neoantigens; Solid tumors; Tumor antigens; Vaccine
P191Combination of Sorafenib and anti-PD-1 for advanced hepatocellular carcinoma- real world experienceSan-chi Chen, MD; Muh-Hwa Yang; Yee chao; Checkpoint blockade; Solid tumors
P192A case of nivolumab-induced gastrointestinal toxicity treated with vedolizumab in the context of metastatic non-small cell lung cancerCynthia N. Tran, MD; Yinghong Wang, MD, PhD; Wenyi Luo, MD; Checkpoint blockade; Immune toxicity
P193Exceptional response of MSH6-null castration-resistant prostate cancer patient with myelophthisic pancytopenia to pembrolizumabPanagiotis J. Vlachostergios, MD, PhD; Julia T. Geyer, MD; Ana M. Molina, MD; David M. Nanus, MD; Himisha Beltran, MD; Scott T. Tagawa, MD, MS; Antibody; Biomarkers; Checkpoint blockade; Chemotherapy; Clinical study; Solid tumors
P194Fecal microbiota transplantation for refractory immune checkpoint inhibitor-associated colitisYinghong Wang, MD, PhD; Hamzah Abu-Sbeih, M.D.; Diana Wiesnoski; Beth Helmink, MD PhD; Vancheswaran Gopalakrishnan, MPH, PhD; Kati Choi, MD; Hebert DuPont, MD; Zhi-Dong Jiang; Michael T. Tetzlaff, MD PhD; Jennifer A. Wargo, MD, MMSc; Robert Jenq, MD; Checkpoint blockade; Clinical study; Immune suppression; Immune toxicity; Inflammation; Microbiome; T cell
P195Transcriptomic profiling of specific populations of T-cells in Acute Myeloid LeukemiaMilad Abolhalaj, MSc; Henrik Lilljebjörn; Carl Sandén; Karin Hägerbrand; Peter Ellmark, PhD; Carl Borrebaeck; Thoas Fioretos; Kristina Lundberg, PhD; Biomarkers; Gene expression; Leukemia/Lymphoma; Regulatory T cell (Treg cell); T cell
P196Comparison of culture media for in citro T cell assays and expansionPONNI ANANDAKUMAR; Anne Lodge, PhD; Benjamin A. Tjoa, Ph. D.;Adoptive immunotherapy; Antigen presenting cells; Biomarkers; CAR T cells; Chemokine; Cytokine; Metabolism; T cell; Tumor antigens
P197Modulating hexokinase 2 as a novel approach for simultaneous targeting of the tumor and its immunosuppressive microenvironmentVered Behar, PhD; Reut Yosef, PhD; Eyal Dor-On, PhD; Nofar Amsalem, MSc; Yuval Ariel, MSc; Oren M. Becker, PhDImmune suppression; Monocyte/Macrophage; Metabolism; Solid tumors; Targeted therapy; Tumor microenvironment
P198IDH1-R132H, a rate determining mutation in the timeline of anaplastic astrocytomaJonathan W. Fraser, MD; Mikhail Prosniac, PhD; Larry Harshyne; David W. Andrews, MD; D. Craig Hooper, PhD; Angiogenesis; Chemokine; Cytokine; Gene expression; Immune suppression; Monocyte/Macrophage; Myeloid cells; Metabolism; Solid tumors; Tumor evasion; Tumor microenvironment; Tumor stroma
P199Myo-inositol up-regulates PD-L1 in non-small cell lung cancerEileen Fung, PhD; Jane Yanagawa; Jessica KimCheckpoint blockade; Solid tumors; Tumor evasion
P200Cell competition and flower code regulates competitive interactions between tumor and its microenvironmentRajan Gogna, PhD, MS, MBA; Esha Madan, PhD, MS, MBA; Masaki Nagane; Christopher Pelham; Taylor Parker; Antonio Beltran; Carlos Carvalho, MD; Adoptive immunotherapy; Antibody; Carcinogenesis; Chemotherapy; Gene expression; Immune adjuvant; Solid tumors; Targeted therapy; Tumor antigens; Tumor microenvironment; Tumor stroma
P201Cell competition genes drive donor cell leukemia in AML patientsRajan Gogna, PhD, MS, MBA; Esha Madan, PhD, MS, MBA; Christopher Pelham; Taylor Parker; Antigen presenting cells; Biomarkers; Chemotherapy; Gene expression; Immune suppression; Leukemia/Lymphoma; MDSC; Stem cell/cancer-initiating cell; Targeted therapy; Tumor microenvironment; Tumor stroma
P202Targeting the stress response kinase GCN2 to restore immunity in the tumor microenvironmentLisa A. Marshall; Buvana Ravishankar; Lavanya Adusumilli; Mikhail Zibinsky, PhD; Deepa Pookot; Emily Huang; Oezcan Talay, PhD; Silpa Suthram; Jeffrey Jackson; Grant Shibuya; Akinori Okano; Paul Leger; Scott Jacobson, BS; Steve Wong; Sherra Johnson; Parcharee Tivitmahaisoon; Angela Wadsworth, BA; Jerick Sanchez; Martin Brovarney; David Chian, BA; Abood Okal, PhD; Delia Bradford; Christophe Colas; Andrea Kim; Gene Cutler, PhD; Jacob Schwartz; David J. Wustrow, PhD; Paul D. Kassner, PhD; Dirk Brockstedt; Immune suppression; Immune tolerance; Myeloid cells; MDSC; Metabolism; T cell; Tumor microenvironment
P203Immunomodulatory effects through inhibition of monocarboxylate transporters in melanomaSatish R. Noonepalle, PhD; Jennifer Kim, PhD; Namratta Manhas, PhD; Sophiya Ephrame, BS; Erica Palmer, BS; Melissa Hadley, MS; Vincent Sandanayaka, PhD; Alejandro Villagra, PhDCheckpoint blockade; Costimulation; Cytokine; Immune suppression; Metabolism; NK/NK T cell; Solid tumors; T cell; Tumor evasion; Tumor microenvironment
P204Characterization of novel dual A2A_A2B adenosine receptor antagonists for cancer immunotherapyMateusz Nowak; Michal Galezowski; Paulina Wegrzyn; Aneta Bobowska; Katarzyna Dziedzic; Joanna Szeremeta-Spisak; Marcin Nowogrodzki; Grzegorz Satala; Alicja Obara; Iwona Lozinska; Marcelina Dudek; Anita Janiga; Jacek Reus; Marek Wronowski; Magdalena Zastawna; Grzegorz Statkiewicz; Maciej Rogacki; Mateusz Swirski; Jakub Woyciechowski; Magdalena Ziembik; Karolina Grycuk; Foteini Soukou; Agnieszka Adamus; Karolina Wiatrowska; Natalia Lewandowska; Aniela Golas; Olga Pierzchala; Roderick Porter; Krzysztof Brzozka; Mateusz NowakImmune suppression; Metabolism; Tumor evasion; Tumor microenvironment
P205Preclinical and initial phase I clinical characterization of CPI-006: an anti-CD73 monoclonal antibody with unique immunostimulatory activityEmily C. Piccione, PhD; Andrew Hotson, PhD; Glen Mikesell, BS; Barbara Daine-Matsuoka, BS; Chunyan Gu; Trang Dao-Pick; Craig M. Hill, PhD; Antonett Madriaga; Jennifer Rudnick; Liang Liu; W B. Jones; Linda Hammerich, PhD; Joshua Brody, MD; Ginna Laport; Richard A. Miller, MD; Joseph J. Buggy; Antibody; B cell; Clinical trial; Costimulation; Immune suppression; Metabolism; Solid tumors; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P206Using clear cell like-RenCa and papillary like-RenCa models of Kidney Cancer to study metabolic influences on the microenvironment and metastasisKaty Beckermann; W. K. Rathmell, MD, PhD; Bradley I. Reinfeld, BA; Peter J. Siska; Jeffrey C. Rathmell, PhD; Melissa M. Wolf; Kirsten Young; Gabriella Andrejeva, PhD; Jamie WeyandtImmune suppression; Immune tolerance; Metabolism; Solid tumors; Tumor infiltrating lymphocytes (TILs)
P207Chronic T cell activation and metabolic stress promote the exhausted T cell state by inducing epigenetic inflexibilityNicole E. Scharping, BS; Natalie Rittenhouse; Ashley Menk, BS; Ronal Peralta; Paolo Vignali, BA; Roderick J. O'Sullivan; Amanda Poholek; Greg M. Delgoffe, PhD; Bioinformatics; Metabolism; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P208Metabolic reprogramming augments CAR T cell functionYiyang Wang; Greg M. Delgoffe, PhD; Jason Lohmueller, PhD; McLane Watson, BS; Dayana B. Rivadeneira, PhDCAR T cells; Metabolism; Tumor microenvironment
P209Antagonism of peroxisome proliferator activated receptor alpha by TPST-1120 suppresses tumor growth and stimulates anti-tumor immunityChan C. Whiting, PhD; Nick Stock, PhD; Davorka Messmer, PhD; Austin Chen, PhD; Lisa Rahbaek, PhD; Allison Gartung, PhD; Karin Stebbins, PhD; Traci Olafson; Alex Broadhead; Ryan Clark, PhD; Catherine Lee, MS; Chris Baccei; Dan Lorrain, PhD; Alicia Levey, PhD; Derek Metzger, BA; Amanda Enstrom, PhD; Jennifer McDevitt, PharmD, PhD; David e. Spaner, MD, PhD; Peppi Prasit, PhD; Dipak Panigrahy, MDAntigen presenting cells; Checkpoint blockade; Chemotherapy; Cytokine; Dendritic cell; Gene expression; Immune suppression; Inflammation; Monocyte/Macrophage; Myeloid cells; MDSC; Metabolism; T cell; Tumor microenvironment
P210PD-1-positive tumor-infiltrating lymphocytes (TIL) for the next generation of adoptive T cell therapyMichelle R. Abelson, PhD; Kenneth D'Argio; Angel Cedano-Hilton; Ian Frank; Krit Ritthipichai, DVM, PhD; Cecile Chartier; Michelle R. Abelson, PhD; Adoptive immunotherapy; Clinical study; Inflammation; Neoantigens; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P211Oxygen and pressure promote primary T cell expansion and can regulate population dynamics and cytokine releaseYunmin Li, Ph.D; Zachary Pappalardo; Mauricio Montano; Ann Lu; Bruce AdamsAdoptive immunotherapy; Cytokine; T cell; Tumor microenvironment
P212Preinfusion product doubling time is associated with CAR T cell expansion and outcomes in ZUMA-1, the pivotal study of axicabtagene ciloleucel (axi-cel) in refractory large B cell lymphomaFrederick L. Locke, MD; John M. Rossi, MS; Caron Jacobson, MD; David Miklos, MD; Armin Ghobadi, MD; Olalekan O. Oluwole, MBBS, MPH; Lazaros J. Lekakis, MD; Patrick Reagan, MD; Yizhou Jiang, PhD; Lianqing Zheng, PhD; William Go, MD, PhD; Adrian Bot, MD, PhD; Adoptive immunotherapy; CAR T cells; Clinical study; Clinical trial; Leukemia/Lymphoma; Targeted therapy
P213CYAD-101: an allogeneic NKG2D CAR T cell therapy using a TCR inhibitory moleculeSophie AGAUGUE, PhD; Alexandre E. Michaux, PhD; Eytan Breman, MSc; Sebastien Mauen, PhD; David E. Gilham, PhDAdoptive immunotherapy; CAR T cells; Solid tumors
P214Development of allogeneic gene-edited CAR T-cells: from preclinic to clinical proof of conceptBeatriz Aranda Orgilles, PhD; Agnes Gouble; Roman Galetto, PhD; Julianne Smith; Philippe Duchateau; David Sourdive; Laurent Poirot, PhD; Stephane depilAdoptive immunotherapy; CAR T cells; Leukemia/Lymphoma; Solid tumors; T cell
P215Preclinical evaluation of Deep™ IL-15 Primed PMEL cells demonstrates highly improved safety compared to systemic administration of IL-15Philip D. Bardwell, PhD; Elena Geretti; Xiaoyan Liang; Santina Caruso; De-Kuan Chang, Ph.D; Jesse Lyons; Carlos Tassa; Sanela Bilic; Janice Lanista; Becker Hewes, MD; Jonathan B. Fitzgerald, PhD; Thomas L. Andresen, PhDAdoptive immunotherapy; Cytokine; Immune toxicity; Solid tumors; T cell
P216Select metabolic and costimulatory bolt-on transgenes enhance chimeric receptor-bearing T cell activity against solid tumorsLuke Barron, Ph.D.; Kathleen Whiteman; Madaline Gilbert; Tapasya Pai; Megan Snyder, BS; Michael Fray; Allison Nelson; Tyler Johnson; Kelsey Lakeman; John Shin; Ryan Boomer; Seth Ettenberg; Kathleen McGinness; Greg MotzAdoptive immunotherapy; CAR T cells; Costimulation; Metabolism; Solid tumors; T cell; Tumor microenvironment
P217Small molecule control of inducible MyD88/CD40 regulates Natural Killer cell expansion and anti-tumor activityJoseph H. Bayle; Xiaomei Wang, PhD; Wei-Chun Chang, PhD; Daniel J. Jasinski, PhD; Jan L. Medina; Aaron E. Foster, PhD; David M. Spencer, PhD; Adoptive immunotherapy; CAR T cells; NK/NK T cell; Targeted therapy
P218Endogenous DAP10 provides optimal co-stimulation to NKG2D-based CAR T cellsJennifer Bolsée; Eytan Breman, MSc; Thuy Nguyen; Sophie AGAUGUE, PhD; David E. Gilham, PhDAdoptive immunotherapy; CAR T cells; Costimulation
P219SQZ’ing cells to engineer next generation antigen presenting cell (APC) therapiesMatthew G. Booty, PhD; Scott M. Loughhead; Kelan A. Hlavaty; Ildefonso Vicente-Suarez; Katarina Blagovic, PhD; Melissa Myint; Brittany Stokes, MS; Defne Yarar; Howard Bernstein, MD, PhD; Armon ShareiAdoptive immunotherapy; Antigen presenting cells; Immune adjuvant; Solid tumors; T cell; Targeted therapy; Tumor antigens; Vaccine
P220Generating allogeneic CAR T cells without gene editing Simon Bornschein, PhD; Alexandre E. Michaux, PhD; Susanna Raitano, PhD; Eytan Breman, MSc; Céline Jacques-Hespel; Fanny Huberty; Laura Saerens; Dorothée Daro; Steven R. Lenger, Ph.D.; Hidevaldo B. Machado, PhD; Jonathan D. Moore, PhD; Sophie AGAUGUE, PhD; David E. Gilham, PhD; Adoptive immunotherapy; CAR T cells; Gene expression; T cell
P221The co-expression of a single shRNA targeting MICA and MICB with a NKG2D-CAR (CYAD-01) generates CAR-T cells resistant to target driven fratricide and improves CYAD-01 cell persistence in vivoSimon Bornschein, PhD; Susanna Raitano, PhD; Jérôme Marijsse; Dorothée Daro; Steven R. Lenger, Ph.D.; Hidevaldo B. Machado, PhD; Jonathan D. Moore, PhD; Sophie AGAUGUE, PhD; David E. Gilham, PhDAdoptive immunotherapy; CAR T cells; Gene expression; T cell; Targeted therapy; Tumor antigens
P222Genetic engineering of tumour infiltrating lymphocytes (TIL) with a novel recombinant growth factor receptor for treatment of solid tumoursJohn S. Bridgeman, BSc, MSc, PhD; Michelle L. Le Brocq; Joanne McCaffrey; Tania Katopodi, PhD; Gemma L. Owens, MB BCh, BSc, MRes; Aysha Patel; Ryan Guest; Robert E. Hawkins; Adoptive immunotherapy; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P223In vitro analysis of Tumour Infiltrating Lymphocytes engineered with costimulatory antigen receptors delivering targeted costimulationJohn S. Bridgeman, BSc, MSc, PhD; Michelle L. Le Brocq; Aysha Patel; Martina Sykorova; Tania Katopodi, PhD; Joanne McCaffrey; Ryan Guest; Robert E. HawkinsAdoptive immunotherapy; Granulocyte; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P224Adoptive cell therapy using tumor infiltrating lymphocytes for the treatment of bladder cancerBrittany Bunch, PhD; Matthew Beatty, PhD; Jennifer Morse, MS; Michael Kidd; MacLean Hall; Autumn Joerger; Charles C. Peyton; Mayer N. Fishman, MD, PhD; Amod A. Sarnaik, MD; Michael Poch; Shari A. Pilon-Thomas, PhDSolid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P225Adoptive cell transfer with NY-ESO-1 specific TCR T cells (TBI-1301) results in persistence, cytokine release syndrome and anti-tumor activityMarcus O. Butler, MD; Valentin Sotov; Megan Nelles; Sarah Boross-Harmer; Luisa Bonilla; Sawako Elston; Michael Fyrsta; Diana Gray, MSc; Abha Gupta; Sevan Hakgor; Ausmeema Hossain; Michael X. Le; Darya Lemiashkova; Diane Liu; Charlotte S. Lo; Mark Comacho; Aaron Hansen; David Hogg, MD, FRCPC; Habeeb Majeed; Kiichi Murakami; Jessica Nie; Marc Ouellette; Albiruni R. Razak; Kendra Ross; Adrian Sacher, MD; Sam Saibil; Elizabeth Scheid; Anna Spreafico, MD PhD; Brendan Van As; Jennifer Y. Yam; Pamela S. Ohashi, PhD; Shuichi Takahashi; Shinya Tanaka; Linh Nguyen, PhD; Naoto Hirano, MD, PhDAdoptive immunotherapy; Biomarkers; Clinical study; Clinical trial; Cytokine; Immune monitoring; Solid tumors; T cell; Tumor antigens
P226DeepTM IL-15 primed multi-targeted T cells demonstrate potent antigen-specific cytotoxic activity against human cancer cellsShawn P. Carey, PhD; Beth Pearce; Darren Smith; Pengpeng Cao, PhD; Christine M. McInnis, PhD; Amy M. Shaw; Jonas Bruun, PhD; FABIO FACHIN, PhD; Becker Hewes, MD; Jonathan B. Fitzgerald, PhD; Thomas L. Andresen, PhD; Andy Rakestraw, PhD; Adoptive immunotherapy; Cytokine; Solid tumors; T cell; Targeted therapy; Tumor antigens; Tumor microenvironment
P227Tethering IL-12 to the surface of T cells induces a broad immune activation and potent anti-tumor activity in mice without inducing systemic toxicitiesDe-Kuan Chang, Ph.D; Gulzar Ahmad; Jonathan Nardozzi, PhD.; Thomas L. Andresen, PhD; Douglas Jones, PhDAdoptive immunotherapy; Cytokine; Solid tumors; T cell
P228Novel electroporation method for T cells enables quick CAR-T cell manufactureJian Chen, PhD; Xiaofeng Xia, PhDCAR T cells; Gene expression
P229Adapter mediated transduction with lentiviral vectors: A novel tool for cell-type specific gene transferNicole Cordes, Master of Science; Carolin Kolbe; Thomas Schaser; Andrew Kaiser; Adoptive immunotherapy; CAR T cells; Gene expression; T cell; Targeted therapy
P230Identification of CD4+ and CD8+ T lymphocyte-epitopes from the cancer testis antigen Lactate dehydrogenase CHibah Shaath; Remy Thomas; Salman M. Toor; Eyad Elkord, PhD; Julie Decock, PhD; Adoptive immunotherapy; Biomarkers; T cell; Targeted therapy; Tumor antigens
P231Uncovering the phenotype, the functional and homing properties of NKG2D CAR T cellsBenjamin Demoulin; Eytan Breman, MSc; Sophie AGAUGUE, PhD; David E. Gilham, PhD; Panagiota Sotiropoulou, PhD; CAR T cells; Chemokine; Leukemia/Lymphoma; T cell; Targeted therapy
P232Differential effects of target ligands upon NKG2D CAR T cell activation.Eytan Breman, MSc; Martina Fontaine, PhD; Nancy Ramelot; Sophie AGAUGUE, PhD; David E. Gilham, PhD; Panagiota Sotiropoulou, PhDCAR T cells; T cell; Targeted therapy; Tumor antigens
P233CD8+ tumor-infiltrating lymphocytes expanded from a NSCLC immunosuppressive environment display neoantigen-specific recognitionLorenzo Federico, PhD; Andrea Ravelli; Cara Haymaker, PhD; Marie-Andrée Forget, Ph.D.; Tatiana Karpinets, MS; Jason Roszik, PhD; Donastas Sakellariou-Thompson, BS; Young Uk Kim, PhD; Ankit Bhatta, MSc; May Celestino, BS, MA; Alexandre Reuben; Annikka Weissferdt; Ara A. Vaporciyan, MD; Mara B. Antonoff, MD; Garret Walsh; Phillip Andrew Futreal, PhD; Ignacio Wistuba, MD; Jack Roth; Zhang Jianjun; Emily Roarty, PhD; Lara Alvarez de Lacerda-Landry; Stephen G. Swisher, MD; Tina Cascone, MD, PhD; Gregory A. Lizee, PhD; John V. Heymach; Boris Sepesi, MD; Don Gibbons, MD; Chantale BernatchezImmune contexture; Immune monitoring; Neoantigens; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P234NF-κB p50 deficient immature myeloid cell (p50-IMC) adoptive cell transfer activates the tumor microenvironment to slow tumor growthRahul Suresh, PhD; Theresa Barberi, PhD; David Barakat, PhD; Kenneth J. Pienta, MD; Alan D. Friedman, MDAdoptive immunotherapy; Inflammation; Monocyte/Macrophage; Myeloid cells; Solid tumors; Tumor microenvironment
P235STACT-TREX1: A novel tumor-targeting systemically-delivered STING pathway agonist demonstrates robust anti-tumor efficacy in multiple murine cancer modelsLaura H. Glickman, PhD; Justin Skoble, PhD; Chris S. Rae, PhD; Anastasia M. Makarova, PhD; Marc A. D'Antonio; Andrew J. McGeehan; Christopher Thanos, PhDCheckpoint blockade; Immune adjuvant; Immune suppression; Inflammation; Monocyte/Macrophage; Myeloid cells; Solid tumors; Tumor infiltrating lymphocytes (TILs); TLR; Tumor microenvironment
P236Flower-code: A novel Immunotherapy targetRajan Gogna, PhD, MS, MBA; Christopher Pelham; Taylor Parker; Esha Madan, PhD, MS, MBA; Carlos Carvalho, MD; Antonio Beltran; Antibody; Carcinogenesis; Chemotherapy; Costimulation; Gene expression; Immune adjuvant; Immune tolerance; Pediatric tumors; Solid tumors; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P237CAR-modified killer MSC targeting GD2-positive Ewing sarcomaGiulia Golinelli, PhD; Massimo Dominici; Giulia Grisendi; Carlotta Spano; Filippo Rossignoli; Malvina Prapa; Angela d'EspositoCAR T cells; Pediatric tumors; Solid tumors; Targeted therapy; Tumor antigens; Tumor microenvironment
P238Regulation of in vivo anti-tumor activity of adoptively transferred CAR-T cells using FDA approved small molecule drugsBrian M. Dolinski, BS; Scott Heller, MS; Mara Inniss; Abhishek Kulkarni; Dan Jun Li, MD; Christopher Reardon; Dexue Sun; Karen Tran, MS; Michelle L. Ols, PhD; Jennifer L. Gori, PhD; Vipin Suri; Celeste Richardson; Steven Shamah, Ph.D.Adoptive immunotherapy; CAR T cells; Gene expression; Leukemia/Lymphoma; T cell
P239Novel solid tumor gene therapy approach mediated by engineered Bifidobacterium longum generates efficient tumor-derived IL-12 expression and results in local and systemic anti-tumor immunitySheetal Raithatha; Umesh Ramachandran; Melissa Dennis; Elena Topchy; Steven Zhao; Alexander Graves; Adoptive immunotherapy; Cytokine; Gene expression; Microbiome; Neoantigens; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P240Autologous Epstein-Barr virus (EBV)-specific T cells (baltaleucel T): preliminary results from a multicenter, multinational phase 2 study for treatment of EBV-associated NK/T cell lymphomaKurt C. Gunter, MD; Yasuhiro Oki, MD; Won Seog Kim; Kirit Ardeshna, MB BChir MA MD FRCP FRCPath; Yi Lin, MD PhD; Jia Ruan, MD, PhD; Pierluigi Porcu, MD; Jonathan Brammer, MD; Eric Jacobsen, MD; Dok Hyun Yoon, MD; Cheolwon Suh, MD PhD; Felipe Suarez, MD PhD; John Radford, MD; Lihua E. Budde, MD PhD; JIN SEOK Kim, MD PhD; Gilles Salles, MD; Hun Ju Lee, MD; Catherine Bollard, MD; Arnaud Jaccard, MD PhD; Hye Jin Kang, MD PhD; Shannon Inman, BS; Maryann Murray; Katherine E. Combs, RN; Kurt C. Gunter, MD; Daniel Y. Lee, MD PhD; Ranjana Advani, MD; M. Rooney, PhD; Helen E. Heslop, MDAdoptive immunotherapy; Clinical study; Clinical trial; Leukemia/Lymphoma; T cell
P241Melanoma-derived human CD4+ tumor-infiltrating lymphocytes (TIL) demonstrate a functional response to autologous tumorMacLean Hall; Autumn Joerger; Ellen Scott; Ben Schachner; Allison Richards; Valerie Stark; Jeani Rich; Amy M. Weber, .; Doris Wiener; Krithika N. Kodumudi, PhD; Matthew Beatty, PhD; Amod A. Sarnaik, MD; Shari A. Pilon-Thomas, PhD; Adoptive immunotherapy; Cytokine; Neoantigens; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P243Tumour infiltrating lymphocyte therapy: clinical outcomes in pre-treated metastatic melanoma patients and biomarker correlationsManon Pillai, MB BS MD; Ryan Guest; Natallia Kirillova; Paul Lorigan; Michelle L. Le Brocq; John S. Bridgeman, BSc, MSc, PhD; Robert E. Hawkins, MD, PhD; Adoptive immunotherapy; T cell; Tumor infiltrating lymphocytes (TILs)
P244Reactive myelopoiesis triggered by lymphodepletion limits the efficacy of adoptive T cell therapyPatrick Innamarato, B.S.; Shari A. Pilon-Thomas, PhD; Krithika N. Kodumudi, PhD; Amy M. Weber; Amod A. Sarnaik, MD; Doris Weiner; Jennifer Morse, MS; Michael Kidd; Patrick VerdugoAdoptive immunotherapy; Chemotherapy; Clinical trial; Immune suppression; Myeloid cells; MDSC; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P245Enrichment of rare antigen-specific CD8+ T cells directly from splenocytes improves output and throughputAriel Y. Isser; John Hickey, BS; Kayla Gee; Sebastian Salathe; Yi Dong; Jonathan P. Schneck, MD, PhD; Adoptive immunotherapy; T cell
P246Targeting novel tumor-associated antigens with TCR-engineered T CellsMamta Kalra, PhD; Ali Mohamed, PhD; Zoe Coughlin; Thorsten Demberg, PhD; Amir Alpert, BS; Leoni Alten; Sebastian Bunk, PhD; Claudia Wagner; Jens Fritsche, PhD; Oliver Schoor, PhD; Agathe Bourgogne; Yannick Bulliard, PhD; Geoffrey Stephens; Dominik Maurer, PhD; Harpreet Singh, PhD; Carsten Reinhardt, MD, PhD; Tony Weinschenk; Steffen Walter, PhDAdoptive immunotherapy; Clinical trial; Cytokine; Solid tumors; T cell; Targeted therapy; Tumor antigens
P247Potent ex vivo expanded, human CD34+ cord blood-derived natural killer cells for glioblastoma immunotherapyLin Kang, Ph.D.; Shuyang He; William van der Touw; Bhavani Stout; Valentina Rousseva; Rathna Ravishankar; Robert Hariri; Xiaokui Zhang; Adoptive immunotherapy; Cytokine; NK/NK T cell; Solid tumors
P248IL-2, IL-15 and IL-21 expanded tumor-infiltrating lymphocytes (TIL) for the treatment of patients with solid cancerDragan Kiselicki; Julia Karbach; Martin Rao, PhD; Ernest Dodoo; Evgueni Sinelnikov; Akin Atmaca; Markus Maeurer; Elke JaegerAdoptive immunotherapy; Immune contexture; Immune monitoring; Tumor infiltrating lymphocytes (TILs)
P249Glypican-1 (GPC-1) specific CAR-T cells eradicate established solid tumor without adverse effects and synergize with anti-PD1 antibody therapiesDaiki Kato, DVM; Tomonori Yaguchi, MD, PhD; Kenji Morii, MS; Satoshi Serada; Tetsuji Naka; Takayuki Nakagawa; Ryohei Nishimura; Yutaka Kawakami, MD PhDAdoptive immunotherapy; CAR T cells; Checkpoint blockade; Solid tumors; T cell; Tumor antigens; Tumor microenvironment
P250Shorter ex vivo expansion of Th17 cells mediates potent anti-tumor regression in melanomaHannah Knochelmann; Michelle H. Nelson, PhD; Jacob S. Bowers; Megan Wyatt, MS; Aubrey S. Smith; Connor J. Dwyer, PhD; Chrystal M. Paulos, PhDAdoptive immunotherapy; Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs)
P251Tumor-infiltrating lymphocytes (TIL) for the adoptive treatment of patients with pancreatic cancerJoana Lérias, DVM; Georgia Paraschoudi, M.Sc. in Cell and Molecular Biology, Sweden; Martin Rao, PhD; Nuno Couto; Davide Valentini; Mireia Castillo-Martin; Antonio Beltran; Evgueni Sinelnikov; Hans Hofmeister; Ana Vieira; Javier Martin-Fernandez; Andreia Maia; Dário Ligeiro; Carlos Carvalho; Dragan Kiselicki; Akin Atmaca; Julia Karbach; Elke Jäger; Markus Maeurer; Joana R. Lerias, PhD; Adoptive immunotherapy; Clinical study; Cytokine; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P252Fast quality gauging of tumor-infiltrating lymphocytes (TIL) for the treatment of patients with solid cancerGeorgia Paraschoudi, M.Sc. in Cell and Molecular Biology, Sweden; Joana Lérias, DVM; Martin Rao, PhD; Mireia Castillo-Martin; Antonio Beltran; Evgueni Sinelnikov; Hans Hofmeister; Javier Martin-Fernandez; Andreia Maia; Dário Ligeiro; Carlos Carvalho; Dodoo Ernest; Dragan Kiselicki; Julia Karbach; Elke Jäger; Ana Vieira; Markus Maeurer; Georgia Paraschoudi, M.Sc. in Cell and Molecular Biology, Sweden; Adoptive immunotherapy; Cytokine; Neoantigens; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P253B cell structural diversity in early cultured tumor-infiltrating lymphocytesDario D. Ligeiro, PhD; Dário Ligeiro; Hélder Trindade; Joana Lérias, DVM; Georgia Paraschoudi, M.Sc. in Cell and Molecular Biology, Sweden; Andreia Maia; Catarina V. de Oliveira; Javier Martin-Fernandez; Martin Rao, PhD; Carlos Carvalho, MD; Mireia Castillo-Martin; Markus Maeurer; Dário Ligeiro; Adoptive immunotherapy; B cell; Cytokine; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P254Natural Killer cells propagated under pressurized culture conditions show enhanced tumor killing activityJames Lim; Ann Lu; Nick Wilson; Albert WongAdoptive immunotherapy; CAR T cells; Immune monitoring; Metabolism; NK/NK T cell; Stem cell/cancer-initiating cell; Solid tumors; Tumor microenvironment
P255Results and perspectives from Phase 1 studies assessing the safety and clinical activity of multiple doses of a NKG2D-based CAR-T therapy, CYAD-01, in metastatic solid tumorsSylvie Rottey, MD; Mateusz Opyrchal, MD PhD; Kunle Odunsi, MD, PhD; Jean-Pascal Machiels, MD, PhD; Solmaz Sahebjam, MD; Leila Shaza, MD; Sandrine Aspeslagh; Marc Van den Eynde, MD; Jean-Luc Canon, MD; Javier Carrasco; Ahmad Awada; Eytan Breman, MSc; Panagiota A. Sotiropoulou, PhD; Sarah Snykers, PhD; Nathalie Braun; Caroline Lonez, PhD; Anne Flament; Bikash Verma, MD; Frédéric F. Lehmann, MD; Alain Hendlisz, MDAdoptive immunotherapy; CAR T cells; Clinical study; Clinical trial; Solid tumors; Tumor microenvironment
P256Evaluation of therapeutic T cell manufacture using long amplicon TCRβ immune repertoire sequencingGeoffrey M. Lowman, PhD; Lauren Miller, BS; Timothy Looney, PhD; Tor Espen Stav-Noraas; Reidun Hartberg, PhD; Hilde Almåsbak; Mark Andersen, PhD; Sjoerd H. van der Burg, PhD; Elizabeth (Els) ME. Verdegaal, PhD; Noel F. de Miranda, PhDAdoptive immunotherapy; CAR T cells; Immune monitoring; Leukemia/Lymphoma; T cell
P257Natural Killer and TCR gamma-delta T-cells are present in the tumor microenvironment and can be expanded for adoptive immunotherapy for epithelial cancerAndreia Maia; Joana Lérias; Catarina de Oliveira; Javier Martin-Fernandez; Georgia Paraschoudi, M.Sc.; Martin Rao, PhD; Dário Ligeiro; Tin Htwe Thin, Ph.D.; Ana Isabel Vieira; Carlos Carvalho, MD; Markus Maeurer; Mireia Castillo-MartinAdoptive immunotherapy; Antibody; Biomarkers; Cytokine; NK/NK T cell; Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor evasion
P258sd-rxRNA to enhance NK cell activity for adoptive cell transferMelissa Maxwell, MS; James Cardia; Dingxue Yan, PhD; Gerrit Dispersyn, PhDAdoptive immunotherapy; Checkpoint blockade; Gene expression; NK/NK T cell
P259Regional delivery of chimeric antigen receptor (CAR)-engineered T cells with 4-1BB co-stimulation effectively targets TAG72-positive peritoneal ovarian tumorsJohn P. Murad, BS, MS; Anna K. Kozlowska, MSc, PhD; Maya Ramamurthy; Wen-Chung Chang, MS; Paul Yazaki, PhD; David Colcher, PhD; John Shively, PhD; Mihaela Cristea, MD; Stephen J. Forman, MD; Saul Priceman, BS PhD; CAR T cells; Costimulation; Solid tumors; T cell; Targeted therapy; Tumor antigens; Tumor evasion
P260Automated perfusion-based systems for research- and clinical-scale dendritic cell generationAndrew Kozbial, BS, PhD; Lekhana Bhandary, BS, PhD; Shashi Murthy, BS, PhDDendritic cell; Monocyte/Macrophage; Neoantigens; Vaccine
P261Identification and pre-clinical development of tumour-reactive T-cell receptors from tumour-infiltrating lymphocytesNatasha Myhill, MRes; John Bridgeman, Dr.; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P262AIM ACT, a novel nanoparticle-based technology that generates therapeutic numbers of functional tumor-specific CD8+ T cells with central and effector phenotype in 14 daysMathias Oelke, Ph.D.; Sojung Kim; Juan Varela; Tatsuya Yoshida; Jeffrey S. Weber, MD, PhD; Lauren Suarez; Emily Lu; Celine Walmacq; Daniel Dembrow; Daniel Bednarik; Kenneth Carter, PhD; Kristi Jones; Scott P. Carmer, MBA; Adoptive immunotherapy; Antigen presenting cells; CAR T cells; Dendritic cell; Leukemia/Lymphoma; Neoantigens; T cell; Targeted therapy; Tumor antigens
P263IL13RA2 as a new target for T-cell based therapies of melanoma brain metastasesMaria C. Ramello, PhD; Ismahene Benzaid, PhD; Maritza Lienlaf; Vincent Law; Nikhil I. Khushalani, MD; Amod A. Sarnaik, MD; Inna Smalley, PhD; Keiran S. Smalley, PhD; Peter A. Forsyth, MD; Daniel Abate-Daga, PhDAdoptive immunotherapy; CAR T cells; Solid tumors
P264Identification of tyrosine phosphorylation sites in CD28 domain and their role in CAR-T cell functionMaria C. Ramello, PhD; Bin Fang, PhD; John Koomen, PhD; Eric Haura, MD; Daniel Abate-Daga, PhDAdoptive immunotherapy; CAR T cells; Solid tumors
P265Inhibiting immune evasion in CNS tumors by reversing epigenetic gene silencing of chemoattractant cytokinesNivedita M. Ratnam, PhD; Heather M. Sonnemann; Amber J. Giles, PhD; Mark R. GilbertChemokine; Cytokine; Gene expression; T cell
P266Improving T cell functionality for adoptive cell transfer therapy in metastatic colon cancerSruthi Ravindranathan, PhD; Mohammad Raheel Jajja; Sruthi Ravindranathan, PhD; Christopher Petersen; Ramireddy Bommireddy; Periasamy Selvaraj; Lily Yang; Bassel El-rayes, MD; Brianna Flynn, MS; Edmund K. Waller, MD, PhD, FACP; Sruthi Ravindranathan, PhD; Adoptive immunotherapy; Solid tumors
P267Hijacked CAR19 T cells have potent activity against solid tumorsPaul Rennert, PhD; Fay Dufort, PhD; Lihe Su, PhD; Lan Wu, PhD; Alyssa Birt; Roy Lobb, PhD; Christine Ambrose, PhDCAR T cells; Leukemia/Lymphoma; Solid tumors; Tumor antigens
P268Heterogeneity of pancreatic cancer tumor-infiltrating T cells at the single cell levelDonastas Sakellariou-Thompson, BS; Aislyn Schalck; Mark Hurd, PhD; Gauri Varadhachary; Milind Javle, MD; Anirban Maitra, MBBS; Nicholas Navin, PhD; Cara Haymaker, PhD; Chantale BernatchezGene expression; Immune contexture; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P269Global phosphoproteomic analysis of chimeric antigen receptor and T cell receptor signaling enables design of modified receptors with distinct propertiesAlexander I. Salter, BS; Richard G. Ivey; Anusha Rajan; Jacob J. Kennedy; Valentin Voillet, PhD; Jeffrey R. Whiteaker; Raphael Gottardo, PhD; Amanda G. Paulovich, MD, PhD; Stanley R. Riddell, MDAdoptive immunotherapy; CAR T cells; Proteomics; T cell
P270A novel, human sdAb-based, CAR against CD33, effectively targets AML in vitro and in vivo, and spares hematopoietic stem cellsDina Schneider, PhD; Ying Xiong, PhD; Peirong Hu; Darong Wu, MS; Weizao Chen; Tianlei Ying; Zhongyu Zhu; Dimiter Dimitrov, PhD; Boro Dropulic, PhD, MBA; Rimas J. Orentas, PhDAdoptive immunotherapy; Antibody; CAR T cells; Leukemia/Lymphoma; Pediatric tumors; T cell; Tumor antigens
P271Titratable and reversible regulation of IL12 or IL15 with FDA-approved drugs enhances CAR-T therapyBrian M. Dolinski, BS; Kutlu Elpek; Tucker Ezell; Michelle Fleury; Jennifer L. Gori, PhD; Jia Gwee; Scott Heller, MS; Mara Inniss; Abhishek Kulkarni; Meghan Langley, BS; Dan Jun Li, MD; Grace Olinger, MS; Michelle L. Ols, PhD; Benjamin Primack; Christopher Reardon; Michael Schebesta; Dexue Sun; Zoe Tarasiewicz, BA; Karen Tran, MS; Michael Briskin; Celeste Richardson; Vipin Suri; Steven Shamah, Ph.D.CAR T cells; Cytokine; Solid tumors; T cell; Targeted therapy; Tumor microenvironment
P272A fully-closed, high efficiency manufacturing technology platform for the production of T cell therapies targeting multiple tumor antigensChristine M. McInnis, PhD; Amy M. Shaw; Shawn P. Carey, PhD; Jonas Bruun, PhD; Rachel Klaski; Pengpeng Cao, PhD; Elisabeth Brown; Andy Rakestraw, PhD; Becker Hewes, MD; Jonathan B. Fitzgerald, PhD; Thomas L. Andresen, PhD; FABIO FACHIN, PhDAdoptive immunotherapy; Antigen presenting cells; Clinical trial; Cytokine; Dendritic cell; Solid tumors; T cell; Targeted therapy; Tumor antigens; Tumor microenvironment
P273T cells cultured in the presence of TLR9 agonist gain a CD25(high)CD39(low), pro-inflammatory phenotype and regress melanoma in vivoHannah Knochelmann; Connor J. Dwyer, PhD; Aubrey S. Smith; Aubrey S. Smith; Megan Wyatt, MS; Chrystal M. Paulos, PhD; Michelle H. Nelson, PhD; Adoptive immunotherapy; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); TLR
P274Functional screening of different anti-B7H6 CAR designsLorraine P. Springuel; Benjamin Demoulin; Martina Fontaine, PhD; Adam Hargreaves, Dr; Dorothée Daro; Jennifer Bolsée, PhD; Céline Jacques-Hespel; Valérie Steenwinckel, PhD; David E. Gilham, PhD; Sophie Agaugué, PhDCAR T cells; Solid tumors; Tumor antigens
P275Pooling signaling and costimulatory domains in a flexible CARpool designLorraine P. Springuel; Amélie Velghe; Sophie AGAUGUE, PhD; David E. Gilham, PhD; Jennifer Bolsée, PhDAdoptive immunotherapy; CAR T cells; Costimulation
P276Characterization of systemic and local immunity following adoptive transfer of NY-ESO-1 SPEAR T-cells in synovial sarcoma (NCT01343043)Justina Stadanlick; Indu Ramachandran, PhD; Daniel Lowther; Rebecca Dryer-Minnerly, PhD; Ruoxi Wang; Svetlana Fayngerts; Daniel Nunez; Natalie Bath, MSc; Gareth Betts, PhD; Karen Chagin, MD; Thomas H. Faitg, PhD; Wayne Higgins; Malini Iyengar, PhD; Luca Melchiori; Siva Samavedam; Jonathan D. Silk, PhD; Alex J. Tipping, PhD; Trupti Trivedi, MS; Erin Van Winkle; Lilli Wang; Rafael Amado, MD; Gwendolyn K. Binder; Samik Basu, MD; Samik Basu, MD; Adoptive immunotherapy; Clinical trial; Immune contexture; Immune monitoring; Solid tumors; T cell; Targeted therapy; Tumor antigens; Tumor microenvironment
P277Genetic modification of IL13Rα2-CAR T cells to express secretory or membrane-bound IL-15 enhances their anti-glioma activity without discernible differencesDavid H. Steffin, MD; Haley Houke; Tim Sauer, MD; Irina V. Balyasnikova, Ph.D.; Stephen Gottschalk; M. Rooney, PhD; Giedre Krenciute, PhDCAR T cells; Cytokine; Solid tumors
P278Identification of senescent T-cell subsets that impact gene-engineered T cell manufacturing success and product consistencyJeffrey J. Teoh, PhD; Daniel Cossette; Sara Cooper; Ryan P. Larson, PhDAdoptive immunotherapy; Biomarkers; CAR T cells; Leukemia/Lymphoma; T cell
P279CRISPR/Cas9 enables the efficient production of allogeneic CAR-T cells engineered to contain multiple genome edits to enhance therapeutic T-cell functionAshley Porras, BA; Dan Henderson; Sushant Karnik; Katie Levitsky, BS; Demetrios Kalaitzidis, Ph.D.; Jason Sagert, PhD; Zinkal Padalia, MS; Mary Lee Dequeant, PhD; melanie allen, BS; Hanspeter Waldner; Henia Dar, PhD; Chandirasegaran Massilamany, PhD; Paul Tetteh; Dakai Mu, BA; Elaine Huang, PhD; Thao Nguyen; Sarah Spencer, PhD; Kelly Maeng; Jonathan Terrett, PhDAdoptive immunotherapy; CAR T cells; Leukemia/Lymphoma; Solid tumors
P280IL-12 cytokine priming of low avidity tumor specific T cells enhances tumor clearance and prevents exhaustionChristopher G. Tucker, BS; Jason Mitchell; Brian FifeAdoptive immunotherapy; Checkpoint blockade; Cytokine; T cell
P281Endogenous MHC class II restricted CD4+ T cell responses to recurrent driver mutations in melanoma and non-small cell lung cancer (NSCLC)Joshua R. Veatch, MD, PhD; Brenda Jesernig, MS; Sylvia Lee; Stanley R. Riddell, MDNeoantigens; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P282Pathogen-reduced human platelet lysate as a serum replacement maintains CAR T cells in a less-differentiated phenotype associated with superior anti-tumor functionAlejandro Torres Chavez; Emanuele Canestrari, PhD; Christina T. Dann, Ph.D; Ann Leen; Juan Vera; Norihiro Watanabe, Ph.D; Norihiro Watanabe, Ph.D; Adoptive immunotherapy; CAR T cells
P283Allogeneic CAR T-cells resistant to both T- and NK-cell cytotoxicityAlan Williams; Laurent Poirot, PhD; Philippe Duchateau; brian Busser; julien Valton; Alexandre juillerat; Stephane depil; Sonal Temburni-Blake, MSAdoptive immunotherapy; CAR T cells; Leukemia/Lymphoma; T cell
P284Importance of the enzymatic activity of CD26 expressed on tumor-specific Th17 cells for adoptive cell therapyChrystal M. Paulos, PhD; Megan Wyatt, MS; Stefanie Bailey; Hannah Knochelmann; Aubrey S. Smith; Connor J. Dwyer, PhD; Michelle H. Nelson, PhD; Adoptive immunotherapy; Gene expression; T cell
P285A clinical study on CD33-directed chimeric antigen receptor modified NK cellsLeiming Xia; Jing Zhang; Liu Liu; Bin Li; Tan Li; Yi Wang; Lin Yang; Yangyi Bao; Alfred Chang; Max S. Wicha, MD; Qiao Li, PhDAdoptive immunotherapy; Clinical trial; Cytokine; Leukemia/Lymphoma; NK/NK T cell
P286Combination of PD-1 blockade and RetroNectin-activated cytokine-induced killer cells in pre-heavily treated NSCLC: a retrospective studyLingdi Zhao; Lu Han; Yong Zhang; Tiepeng Li; Yonghao Yang; Wei Li; Yiman Shang; Hongwei Lin; Quanli GaoAdoptive immunotherapy; Checkpoint blockade; Coinhibition
P287HyPeR: A phase 1, dose escalation study of Guadecitabine (SGI-110) a second generation hypomethylating agent in combination with Pembrolizumab (MK3475) in patients with refractory solid tumoursMalaka Ameratunga, MBBS; Maxime Chénard-Poirier; Sanjena Mithra; Ricardo Morilla; Ruth Riisnaes; Penny Flohr; Rita Pereira, BSc; Ana Ferreira, MSc; Ines Figueiredo; Suzanne Carreira; Claudia Bertan; Wei Yuan; David Dolling; Mateus Crespo; Bora Gurel; Bob Brown; Naina Patel; Joanna Dawes; Toby Prout; Mona Parmar; Alison Turner; Holly Tovey; Emma Hall; Anna Minchom; Udai Banerji; Nina Tunariu; Juanita Lopez; Dionysis Papadatos-Pastos; Johann S. De Bono, MD; Checkpoint blockade; Clinical study; Clinical trial
P288IMAGE 1 (Immune Modulation And Gemcitabine Evaluation 1), a randomized, open-label phase II trial comparing gemcitabine with and without IMM-101 in advanced pancreatic cancer.Angus G. Dalgleish, MD, PhD; Chemotherapy; Clinical trial; Costimulation; Immune suppression; NK/NK T cell; Solid tumors; TLR; Tumor microenvironment
P289Initial results from a phase 1a/b study of etigilimab (OMP-313M32), an anti-T cell immunoreceptor with Ig and ITIM domains (TIGIT) antibody, in advanced solid tumorsSunil Sharma, MD; Kathleen N. Moore; Niharika B. Mettu; Ignacio Garrido-Laguna; Susanna V. Ulahannan, MD, MMed; Vivek Khemka, MD; Ann Kapoun; Leonardo Faoro; Johanna Bendell, MDAntibody; Biomarkers; Checkpoint blockade; Clinical study; Clinical trial; Solid tumors; T cell
P290Immunologic biomarkers in a multi-center, single arm, open label Phase II clinical trial of mFOLFOX6 and pembrolizumab in patients with advanced colorectal cancerMatthew R. Farren, Ph.D.; Yan Tong; Ziuye Liu; Bert O'Neil; Tanios Bekaii-Saab, MD; Anne Noonan; Christopher W. McQuinn, MD; Thomas Mace, PhD; Walid L. Shaib, MD; Christina Wu, MD; Bassel El-rayes, MD; Safi Shahda, MD; Gregory B. Lesinski, PhD, MPH; Matthew R. Farren, Ph.D.Biomarkers; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune monitoring; Solid tumors
P291A targeted modified IL-2 (NHS-IL2) combined with stereotactic body radiation therapy (SBRT) in patients with advanced melanoma refractory to checkpoint inhibitors: Results from a Phase IIa trialOmid Hamid, MD; David H. Lawson, MD; Karl D. Lewis, MD; Jose Lutzky, MD, FACP; C. Lance Cowey; Beatrice Brunkhorst; Meng Li; Wanping Geng; Christine Hicking; Vijay Kasturi, MD; Howard KaufmanAntibody; Biomarkers; Clinical study; Clinical trial; Cytokine; Radiotherapy; Regulatory T cell (Treg cell); Solid tumors
P292Changes in intra- and perinodular heterogeneity patterns on serial computed tomography are associated with overall survival in Nivolumab-treated non-small cell lung cancerMohammadhadi Khorrami, PhD; Prateek Prasanna, PhD; Vamsidhar Velcheti, MD FACP; Anant Madabhushi, PhD; Biomarkers; Immune monitoring; Solid tumors; Tumor microenvironment
P293Autologous tumor cell vaccination combined with systemic CpG-B and IFNα promotes activation of dendritic cells and T cells and induces clinical responses in metastatic Renal Cell CarcinomaBas D. Koster, MD; Saskia Santegoets; Jorien J. Harting, MD; Arnold Baars, MD, PhD; Marieke van Ham, PhD; Rik J. Scheper, PhD; Erik Hooijberg, PhD; Alfons JM. van den Eertwegh, MD, PhD; Tanja D. de Gruijl, PhDClinical study; Clinical trial; Dendritic cell; Immune adjuvant; Immune monitoring; Solid tumors; T cell; TLR
P294Confirmatory study validates a MALDI prognostic signature for IL-2 response and the adverse prognostic role of the serum apoptotic marker Hepatocyte Growth Factor (HGF) in Renal Cell Carcinoma (RCC)Michael T. Lotze, MD; Shuyan Zhai, PhD; Daniel P. Normolle, PhD; Ryan J. Sullivan, MD; Heinrich Roder, DPhil; Joanna Roder, PhD; David F. McDermott, MD; Theodore F. Logan, MD; Marc S. Ernstoff, MD; Thomas Olencki, DO; David Friedland, MD; Rahul A. Parikh, MD, PhD; Jodi K. Maranchie, MD; Mary Jo Buffo, BS; Lisa H. Butterfield, PhD; Leonard J. Appleman, MD, PhD; Clinical study; Clinical trial; Cytokine; Immune contexture; Solid tumors
P295A Phase 1, open-label, multicenter, dose escalation study of mRNA-2416, a lipid nanoparticle encapsulated mRNA encoding human OX40L, for intratumoral injection to patients with advanced malignanciesShilpa G. Gupta, MD; Todd M. Bauer, MD; Ryan J. Sullivan, MD; Robert H. Andtbacka, MD, CM, FACS, FRCSC; Ding Wang, MD; Geoffrey Shapiro, MD, PhD; Khanh T. Do, MD; Kurt A. Schalper, MD, PhD; Patricia Gaule, PhD; Tal Zaks, MD, PhD; Joshua Frederick, PhD; Lisa Johansen; Kristen Hopson, PhD; William Randolph; Sima Zacharek, PhD; Robert S. Meehan, MD; Antonio Jimeno, MD, PhD; Biomarkers; Clinical study; Clinical trial; Costimulation; Solid tumors; T cell
P297Systemic activation and polyclonal expansion of CD8 T cells in cancer patients on Pegilodecakin alone or in combination with anti-PD-1Aung Naing, MD, FACP; Jeffrey R. Infante, MD; Kyri P. Papadopoulos; Ivan Chan, PhD; Cong Shen; Navneet Ratti, BS, MBA; Bianca Rojo, MSc; Karen Autio, MS, MD; Deborah J. Wong, MD PhD; Manish R. Patel, MD; Patrick A. Ott, MD, PhD; Gerald S. Falchook, MD; Shubham Pant, MBBS; Annie Hung, BA; John B. Mumm, PhD; Matthew Adamow; Scott McCauley, BA; Phillip Wong, PhD; Peter Van Vlasselaer, PhD; Joseph Leveque; Edward B. Garon, MD; Nizar M. Tannir, MD, FACP; Martin Oft, MD; Martin Oft, MD; Biomarkers; Checkpoint blockade; Cytokine; Immune monitoring; T cell
P298T cell response induced by the addition of IL-7 treatment following sipuleucel-T immunotherapy in metastatic castration resistant-prostate cancerRussell Pachynski, MD; Russell Szmulewitz, MD; Lauren Harshman, MD; Leonard J. Appleman, MD, PhD; Paul Monk, MD; Rhonda Bitting; Omer Kucuk, MD; Frederick Millard, MD; John Seigna; Steven P. Fling, PhD; Nirasha Ramchurren, PhD; Bruce Hess, BS; Leonard D'Amico, PhD; Andreanne M. Lacroix, BS; Judith C. Kaiser, MBA, BSN, RN; Michel Morre, DVM, MSc.; Anne GREGOIRE, phD; Martin A. Cheever, MD; Evan Y. Yu, MD; Lawrence Fong, MDAdoptive immunotherapy; Antigen presenting cells; Clinical trial; Cytokine; Immune adjuvant; Immune monitoring; Solid tumors; T cell
P299Combination of subcutaneously administered TLR9 agonist lefitolimod with CTLA-4 checkpoint inhibitor ipilimumab - A phase I trial in patients with advanced solid tumorsMatthew J. Reilley, MD; Casey Ager, BS; Martin Meng; Apostolia M. Tsimberidou, MD, PhD; Sarina A. Piha-Paul, MD; Timothy A. Yap, MD; Siqing Fu, MD, PhD; Aung Naing, MD, FACP; Jordi Rodon; Ly Nguyen; Priya Bhosale, MD; Manuel Schmidt, MSc; Matthias Baumann; Funda Meric-Bernstam, MD; Michael A. Curran, PhD; David Hong, MDCheckpoint blockade; Clinical study; Clinical trial; Immune monitoring; Solid tumors; T cell; T cell lineages; TLR; Tumor microenvironment
P300First-in-human phase 1 study of IT1208, a defucosylated humanized anti-CD4 depleting antibody, in patients with advanced solid tumorsKohei Shitara, MD; Satoshi ueha; Shigeyuki Shichino; Hiroyasu Aoki; Haru Ogiwara, M.D., Ph.D.; Tetsuya Nakatsura; Toshihiro Suzuki; Manami Shimomura; Toshiaki Yoshikawa; Kayoko Shoda; Shigehisa Kitano; Makiko Yamashita; Takayuki Nakayama; Akihiro Sato; Sakiko Kuroda; Masashi Wakabayashi; Shogo Nomura; Satoru Ito; Kouji Matsushima; Toshihiko Doi, MD, PhDCheckpoint blockade; Clinical study; Clinical trial; Immune suppression; T cell; Targeted therapy
P301MLH1/ MSH2 expression and the prognosis of colorectal cancer in 978 Chinese patientsYu Wang, MD; shuiming wang; youping dengSurgery
P302Phase II trial of reirradiation (ReRT) plus Pembrolizumab for locoregional inoperable recurrence or second primary squamous cell carcinoma of the head and neck (SCCHN): Analysis of early toxicityDan P. Zandberg, MD; Tejan Diwanji, MD; Robert Morales, MD; Tiffani Tyer; James Snider, MD; Alexander Engelman, MD; Soren M. Bentzen, PhD; Thomas DeMora, MD; Robert Malyapa, MD; Navid Saeidi; Ana Ponce Kiess, MD; Josh Lubek, MD; Robert Ord, MD; Donita Dyalram, MD; Kyle Hatten, MD; Jeffrey S. Wolf, MD; rodney Taylor, MD; John Papadimitriou, MD, PhD; Ranee Mehra, MD; Harry Quon, MD; Hyunseok Kang, MD, MPH; John A. Ridge, MD, PhD; Jessica Bauman, MD; William F. Regine, MD; Mohan Suntharalingam, MD; Scott E. Strome, MD; Kevin Cullen, MD; Checkpoint blockade; Clinical trial; Radiotherapy; Solid tumors
P303Correlation between prior surgery and immune related gastrointestinal toxicity among women receiving olaparib and tremelimumab for the treatment of recurrent ovarian cancerJaryse Harris, BA; Carolyn Muller, MD; Teresa Rutledge; Olivier Rixe, MD, PhD; Aisha Sethi; Phyllis Gimotty, PhD; Katherine T. Morris, MD, FACS; Sarah F. Adams, MD; Checkpoint blockade; Clinical trial; Immune toxicity; Surgery
P304A phase 1 study of MGD007, a humanized gpA33 x CD3 DART® protein, in combination with MGA012, an anti-PD-1 antibody, in patients with relapsed/refractory metastatic colorectal cancerRichard Kim, MD; David P. Ryan, MD; Stacey Stein, MD; James Cleary, MD, PhD; Liqin Liu, PhD; Ralph F. Alderson, PhD; Francine Z. Chen, MD; Peter Lung, BS, HT (ASCP); Allan Reduta, BA; Syd Johnson, PhD; Jan Baughman, MPH; Ezio Bonvini; Paul Moore, PhD; Joanna Lohr, PhD; Jon M. Wigginton, MD; Jan Davidson-Moncada, MD, PhD; John D. Powderly, II, MD, CPICheckpoint blockade; Clinical trial; T cell; Targeted therapy
P305A phase 1, open label, dose escalation study of MGD009, a B7-H3 x CD3 DART® protein, in combination with MGA012, an anti-PD-1 antibody, in patients with relapsed or refractory B7-H3-expressing tumorsAlexander I. Spira, MD, PhD, FACP; Stacie Goldberg, MD; James Strauss, MD; Johanna Bendell, MD; Gregory Cote; E E. Rahma, MD; Marwan Fakih, MD; Ralph F. Alderson, PhD; Liqin Liu, PhD; Ross La Motte-Mohs, PhD, BS; Amy Worth; Ashley Lowe; Jan Baughman, MPH; Tony Wu, PhD; Syd Johnson, PhD; Ezio Bonvini; Paul Moore, PhD; Jon M. Wigginton, MDCheckpoint blockade; Clinical trial; Solid tumors; T cell; Targeted therapy
P306A phase 1/2, first-in-human, dose escalation study of MGC018 (anti-B7-H3 antibody-drug conjugate) alone and in combination with MGA012 (anti-PD-1 antibody) in patients with advanced solid tumorsJohn D. Powderly, II, MD, CPI; Deryk Loo; Anthony Joshua, MD; Johanna Bendell, MD; Alexander I. Spira, MD, PhD, FACP; Joanna Lohr, PhD; Pepi Pencheva, MD; Jichao Sun, PhD; Jan Baughman, MPH; Ezio Bonvini; Jennifer Brown; Nehal Lakhani, MD, PhD; Jon M. Wigginton, MDAntibody; Checkpoint blockade; Chemotherapy; Clinical trial; Solid tumors; Targeted therapy
P307An open-label, phase 1B study of NEO-PV-01 + CD40 agonist antibody (APX-005M) or Ipilimumab with Nivolumab in patients with advanced or metastatic melanomaOmid Hamid, MD; David R. Spigel, MD; Patrick A. Ott, MD, PhD; Siwen Hu-Lieskovan, MD, PhD; Karl D. Lewis, MD; Michael S. Gordon, MD; Lisa D. Cleary; Melissa Moles; Richard B. Gaynor, MD; Matthew J. Goldstein, MD, PhD; Les H. Brail; Keith Flaherty, MD; Checkpoint blockade; Clinical trial; Immune monitoring; Neoantigens; Vaccine
P308A Phase 1 study of MEDI5752, a bispecific antibody that preferentially targets PD-1 and CTLA-4 expressing T cells, in patients with advanced solid tumors.Jeffery Brubaker; Ben Tran; Mark Voskoboynik; James C. Kuo; Yung-Lue Bang, MD; Hyun-Cheo Chung, MD, PhD; Myung-Ju Ahn; Sang-We Kim; Ayesh Perera; Daniel Freeman; Ikbel Achour, PhD; Raffaella Faggioni, PhD; Feng Xiao; Charles Ferte, MD, PhD; Charlotte R. Lemech, MBBS BSc(med) MD(res)Antibody; Checkpoint blockade; Clinical study; Coinhibition; Solid tumors
P309Phase I dose-finding study of MIW815 (ADU-S100), an intratumoral STING agonist, in patients with advanced solid tumors or lymphomasFunda Meric-Bernstam, MD; Theresa Werner; Stephen Hodi; Wells Messersmith, MD; Nancy Lewis; Craig Talluto; Mirek Dostalek; Aiyang Tao; Sarah McWhirter; Damian Trujillo; Jason J. Luke, MD, FACPAntigen presenting cells; Clinical trial; Immune adjuvant; T cell
P310NANT Cancer Vaccine an orchestration of immunogenic cell death by overcoming immune suppression and activating NK and T cell therapy in patients with third line or greater TNBC and head & neck SCCMira Kistler, MD; Patrick Soon-Shiong, MD, FRCS, FACS; John Lee, MD; Chaitali Nangia, MD; Leonard Sender; Frank Jones, PhDAdoptive immunotherapy; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Cytokine; NK/NK T cell; T cell; Tumor antigens; Vaccine
P311Positive identification of neoepitope specific T cell by tumor-normal DNA & RNA sequencing from breast cancer patient leading to yeast-based vaccine phase 1 trial delivering tumor specific neoepitopesPeter A. Sieling, PhD; Steve Benz; Zach Sanborn, PhD; Kayvan Niazi; Tom King; Shahrooz Rabizadeh, PhD; Andrew Nguyen; Clinical study; Clinical trial; Neoantigens; Proteomics; T cell; Tumor antigens; Vaccine
P313INCMGA 0012-201: A phase 2 study of INCMGA00012 in patients with metastatic Merkel cell carcinoma (mMCC)Geoffrey T. Gibney, MD; Inderjit Mehmi, MD; Sadhna Shankar; Jeffrey Marine; Chuan Tian; Igor Puzanov, MD, MSCI, FACPCheckpoint blockade; Clinical study; Clinical trial; Solid tumors
P314An open-label, phase 1B study of NEO-PV-01 with Pembrolizumab plus chemotherapy in patients with advanced or metastatic nonsquamous Non-small Cell Lung CancerMark Awad, MD PhD; David R. Spigel, MD; Lisa D. Cleary; Melissa Moles; Richard B. Gaynor, MD; Matthew J. Goldstein, MD, PhD; Ramaswamy Govindan, MD; Chemotherapy; Clinical study; Neoantigens; Vaccine
P315Phase I/II study of the anti–LAG-3 antibody MK-4280 in combination with pembrolizumab for the treatment of hematologic malignanciesGareth P. Gregory; Pier L. Zinzani; John Palcza, MS; Jane Healy; Robert J. Orlowski, MD; Arun Balakumaran, PhD, MD; Philippe ArmandCheckpoint blockade; Clinical trial; Leukemia/Lymphoma; Tumor evasion
P316Phase 1b dose-escalation and dose-expansion study to evaluate safety, tolerability, pharmacokinetics, and antitumor activity of ADCT-301 (Camidanlumab Tesirine) in patients with advanced solid tumorsRose Hales; Igor Puzanov; Shivaani Kummar, MD; Patricia LoRusso, DO; Kyri P. Papadopoulos; Francesca Zammarchi, PhD; Hans G. Cruz; Jens U. Wuerthner, MD PhD; Johanna Bendell, MD; Antibody; Clinical study; Immune tolerance; Regulatory T cell (Treg cell); Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P318HITM-SURE: Phase Ib CAR-T hepatic artery infusion trial for stage IV adenocarcinoma using Pressure-Enabled Drug Delivery technologySteven C. Katz, MD; Prajna Guha, PhD; John C. Hardaway, MD, PhD; Ethan Prince, MD; Ashley E. Moody, BSN, RN; Jill E. Slansky, PhD; Kimberly R. Jordan, PhD; Richard D. Schulick, MD, FACS; Robert Knight, MD; Jerry Zeldis, MD, PhD; Vincent A. Armenio, MD; N. Joseph Espat, MD, FACS; Richard P. Junghans, PhD, MDCAR T cells; Clinical trial; Solid tumors; Targeted therapy; Tumor microenvironment
P319PD-1 Blockade with pembrolizumab during concurrent chemoradiation for locally advanced non-small cell lung cancerSalma K. Jabbour, MD; Abigail Berman; Roy H. Decker, MD PhD; Andrew Zloza; Steven Feigenberg; Scott N. Gettinger, MD; Charu Aggarwal, MD MPH; Corey J. Langer, MD; Charles B. Simone, II, MD; Jeffrey Bradley; Yong Lin; Salma K. Jabbour, MD; Jyoti Malhotra, MDCheckpoint blockade; Chemotherapy; Clinical trial; Radiotherapy; Solid tumors
P320A phase 1/1b study to evaluate the safety and tolerability of AB928, a novel dual adenosine receptor antagonist, in combination with chemotherapy in patients with breast or gynecologic malignanciesPaul de Souza, MBBS, MPH, PHD, FRACP; Chee Khoon Lee; Katrin Sjoquist; Shu Pan; Amanda Idan; Aimee K. Rieger, B.S.; Wade Berry, BA; Lixia Jin; Lisa Seitz, MSc; Devika Ashok, PhD; Matthew J. Walters, PhD; Dana Piovesan, MSc; Joanne BL. Tan, PhD; Susan J. Lee, PhD; Adam Park, BS; Daniel DiRenzo, PhD; Joyson Karakunnel, MD, MScAntibody; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune suppression; Solid tumors; Tumor evasion; Tumor microenvironment
P321A phase 1/1b study to evaluate the safety and tolerability of AB928, a novel dual adenosine receptor antagonist, in combination with chemotherapy in patients with gastrointestinal malignanciesPaul de Souza, MBBS, MPH, PHD, FRACP; Chee Khoon Lee; Katrin Sjoquist; Shu Pan; Amanda Idan; Aimee K. Rieger, B.S.; Wade Berry, BA; Lixia Jin; Lisa Seitz, MSc; Devika Ashok, PhD; Matthew J. Walters, PhD; Dana Piovesan, MSc; Joanne BL. Tan, PhD; Susan J. Lee, PhD; Adam Park, BS; Daniel DiRenzo, PhD; Joyson Karakunnel, MD, MSc; Antibody; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune suppression; Solid tumors; Tumor evasion; Tumor microenvironment
P322A phase 1/1b study to evaluate the safety and tolerability of AB928, a novel dual adenosine receptor antagonist, in combination with carboplatin/pemetrexed and pembrolizumab in lung cancer patientsPaul de Souza, MBBS, MPH, PHD, FRACP; Chee Khoon Lee; Katrin Sjoquist; Shu Pan; Amanda Idan; Aimee K. Rieger, B.S.; Wade Berry, BA; Lixia Jin; Lisa Seitz, MSc; Devika Ashok, PhD; Matthew J. Walters, PhD; Dana Piovesan, MSc; Joanne BL. Tan, PhD; Susan J. Lee, PhD; Adam Park, BS; Daniel DiRenzo, PhD; Joyson Karakunnel, MD, MScAntibody; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune suppression; Solid tumors; Tumor evasion; Tumor microenvironment
P323A phase 1 study to evaluate the safety and tolerability of AB928, a novel dual adenosine receptor antagonist, with AB122, a programmed cell death-1 inhibitor, in patients with advanced malignanciesLisa Seitz, MSc; Aimee K. Rieger, B.S.; Wade Berry, BA; Lixia Jin; Devika Ashok, PhD; Matthew J. Walters, PhD; Dana Piovesan, MSc; Joanne BL. Tan, PhD; Susan J. Lee, PhD; Adam Park, BS; Daniel DiRenzo, PhD; Joyson Karakunnel, MD, MScAntibody; Checkpoint blockade; Clinical study; Clinical trial; Immune suppression; Solid tumors; Tumor evasion; Tumor microenvironment
P324A phase II clinical trial of Ipilimumab/Nivolumab combination immunotherapy in patients with rare upper gastrointestinal, neuroendocrine and gynaecological malignanciesOliver Klein; Kee Damien; Ben Markman; Rachael Chang Lee, FRACP; Siddharth Menon; Jodie Palmer, BA/BSc, PhD, Grad Dip Law (IP); Andreas Behren, PhD; Jonathan S. Cebon, MD, PhDCheckpoint blockade; Clinical trial; Immune contexture; Immune monitoring; Solid tumors
P325A phase 1 dose escalation study of TSR-033, an anti-LAG3 monoclonal antibody, in patients with advanced solid tumorsKelly Stratton, MD; Aurélien Marabelle, MD PhD; Geoffrey Shapiro, MD, PhD; Jong Chul Park, MD; Solmaz Sahebjam, MD; Srimoyee Ghosh, PhD; Jian Chen; Taylor Eves; Ying Wang; Amita Patnaik, MD FRCP©Antibody; Checkpoint blockade; Clinical study; Clinical trial; Cytokine; Immune tolerance; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P326GARNET: Preliminary safety, efficacy, pharmacokinetic, and biomarker characterization from a phase 1 clinical trial of TSR-042 (anti-PD-1 monoclonal antibody) in patients with recurrent/advanced NSCLCDesamparados Roda Perez, PhD, MD; Janakiraman Subramanian; Joanna Pikiel; Maria-Pilar Barretina-Ginesta; José Trigo, MD; Wei Guo; Sharon Lu; David Jenkins, PhD; Kai Yu Jen; Hadi Danaee; Steven Dunlap; Ellie Im; Victor Moreno, PhD, MDAntibody; Biomarkers; Checkpoint blockade; Clinical trial; Solid tumors
P327Higher dose single-agent intratumoral G100 (a TLR4 agonist) results in increased biomarker activity and improved clinical outcomes in patients with follicular lymphomaChristopher Flowers, MD, MS; Carlos Panizo; Weiyun Ai, MD, PhD; Iris Isufi, MD; Alex Herrera, MD; Nancy Bartlett, MD; Craig Okada, MD, PhD; Bela Kis, MD, PhD; Luis de la Cruz Merino Sr.; Javier Briones; Jorge Chaves, MD; Elizabeth Cull; Locke J. Bryan, MD; Roch Houot, MD, PhD; Kim Linton, PhD; Ian Chau; Gottfried von Keudell; Hailing Lu, MD, PhD; Frank Hsu, MD; Ahmad S. Halwani, MDB cell; Biomarkers; Clinical study; Clinical trial; Gene expression; Leukemia/Lymphoma; T cell; Tumor infiltrating lymphocytes (TILs); TLR; Vaccine
P328Preoperative window of opportunity trial of nivolumab with or without tadalafil in patients with squamous cell carcinoma of the head and neckAdam Luginbuhl, MD; Jennifer Johnson, MD; Larry Harshyne; Joseph Curry, MD; Rita Axelrod, MD; Ralph G. Zinner, MD; Benjamin Leiby, PhD; Madalina Tuluc, MD; Christopher M. Snyder; David Cognetti, MD; Ulrich Rodeck, MD PhD; Athanassios Argiris, MD PhDCheckpoint blockade; Clinical trial; Solid tumors; Surgery; Tumor microenvironment
P329Phase 3 KEYNOTE-716 study: Adjuvant therapy with pembrolizumab versus placebo in resected high-risk stage II melanomaJason J. Luke, MD, FACP; Paolo A. Ascierto, MD; Matteo S. Carlino, MBBS, PhD, BMedSC, F; Alexander MM. Eggermont; Jean-Jacques Grob, MD; Axel Hauschild; John M. Kirkwood, MD; Georgina Long, MBBS, PhD, BSc, FRAC; Peter Mohr; Caroline Robert; Jeffrey E. Gershenwald, MD; Andrew Poklepovic, MD; Merrick Ross, MD; Richard A. Scolyer; James Anderson; Sama Ahsan; Nageatte Ibrahim, MD PhD; Vernon K. SondakAntibody; Checkpoint blockade; Clinical study; Clinical trial; Immune adjuvant; Solid tumors
P330Harnessing the power of lymphodepletion and checkpoint blockade: A Nivolumab/Ipilimumab-primed immunotransplant for relapsed/refractory diffuse large B cell lymphoma patientsThomas U. Marron, MD PhD; Netonia Marshall, PhD; Dana Ostrowski, BA; Amir Steinberg, MD; Linda Hammerich, PhD; Sacha Gnjatic, PhD; Nina Bhardwaj, MD, PhD; Joshua Brody, MD; Adoptive immunotherapy; Checkpoint blockade; Clinical trial; Leukemia/Lymphoma
P331A phase 1a clinical trial of NLG802, a prodrug of indoximod with enhanced pharmacokinetic propertiesOlivier Rixe, MD, PhD; Thomas George, MD; Heloisa Soares; Agnieszka Marcinowicz; Nicholas Vahanian, MD; Charles Link, Jr., MD; Edouard Dupis; Eugene P. Kennedy, MD, FACS; Mario Mautino, PhD Clinical study; Clinical trial; Immune suppression; Solid tumors
P332CheckMate 9TM: Phase 3 study of nivolumab + cisplatin + radiotherapy in cisplatin-eligible patients with intermediate- or high-risk locally advanced squamous cell carcinoma of the head & neckMaura L. Gillison, MD, PhD; Vincent Gregoire, MD, PhD; Makoto Tahara; Quynh Thu Le, MD; Wilfried Budach; Mark Lynch, PhD; Justin Kopit; Vijayvel Jayaprakash, MBBS, PhD; Peng Sun; Robert L. Ferris, MD, PhDChemotherapy; Clinical trial; Radiotherapy; Solid tumors; Targeted therapy
P333CheckMate 9TM: Phase 3 study of nivolumab + radiotherapy (RT) vs cetuximab + RT in cisplatin-ineligible patients with intermediate-/high-risk locally advanced squamous cell carcinoma of the head/neckrobert haddad, MD; Kevin Harrington, MD; Lisa Licitra, MD; Peter Brossart; Dennis Soulières; Loren K. Mell, MD; Laurence Toms; Justin Kopit; Mark Lynch, PhD; Vijayvel Jayaprakash, MBBS, PhD; Ezra Cohen, MDClinical trial; Radiotherapy; Solid tumors; Targeted therapy
P334AI-designed dual peptide vaccine plus novel combination adjuvant showed markedly induction of antigen-specific CTLs with disease stabilization in last line patients with GI cancers.Masao Nakajima, MD; Shoichi Hazama; Koji Tamada, MD PhD; Keiko Udaka; Yasunari Kouki; Toshinari Uematsu; Hideki Arima; Shun Doi, PhD; Hiroto Matsui; Sinsuke Kanekiyo; Yoshitaro Shindo; Yukio Tokumitsu; Shinobu Tomochika; Shin Yoshida; Michihisa Iida; Nobuaki Suzuki; Shigeru Takeda; Shigeru Yamamoto; Shigefumi Yoshino; Tomio Ueno; Hiroaki NaganoClinical trial; Costimulation; Immune adjuvant; Immune suppression; Regulatory T cell (Treg cell); T cell; Vaccine
P335A phase 1 study of ALX148: CD47 blockade in combination with anticancer antibodies to bridge innate and adaptive immune responses for advanced malignancyNehal Lakhani, MD, PhD; Patricia LoRusso, DO; Laura Q. Chow, MD; Yung-Jue Bang, MD PhD; Philip Fanning; Yonggang Zhao, PhD, MBA; Jaume Pons; Hong Wan; Sophia S. Randolph, MD, PhD; Wells Messersmith, MDAntigen presenting cells; Checkpoint blockade; Clinical trial; Dendritic cell; Monocyte/Macrophage; Myeloid cells; Solid tumors; Targeted therapy; Tumor evasion; Tumor microenvironment
P336An international, single-arm, phase 2 study of INCMGA00012 in patients with advanced squamous carcinoma of the anal canal (SCAC) who have progressed following platinum-based chemotherapy (NCT03597295)Sheela Rao; May Cho; Anne Demols; Talal Kayyal; Hiral Parekh; Gerard Kennealey, MD; Chuan Tian; Melissa Catlett; Marwan Fakih, MDCheckpoint blockade; Clinical study; Clinical trial; Solid tumors
P337Phase I dose-escalation and expansion study of intratumoral CV8102, a RNA-based TLR- and RIG-1 agonist with or without anti-PD1antibodies in patients with advanced solid tumors Lucie Heinzerling; Juergen Krauss; Carsten Weishaupt; Patrick Terheyden; Benjamin Weide, MD; Ralf Gutzmer; Peter Mohr; Juergen C. Becker, MD, PhD; Felix Kiecker; Angelika Daehling; Fatma Doener, PhD; Regina Heidenreich; Sarah-Katharina Kays; Ute Klinkhardt, MD; Birgit Scheel; Oliver Schönborn-Kellenberger; Tobias Seibel, II; Tanja Strack; Ulrike Gnad-Vogt, MD;Checkpoint blockade; Clinical study; Clinical trial; Solid tumors; TLR; Tumor microenvironment
P338Phase II neoadjuvant and immunologic study using the anti B7-H3 antibody, Enoblituzumab, in patients with localized prostate cancerEugene Shenderov, MD, PhD; Karim Boudadi, MD; Angelo M. Demarzo, MD, PhD; Mohamad E. Allaf, MD; Onur Ertunc, MD; Igor Vidal, MD; Carolyn Chapman, AAS; Hao Wang; Jim Vasselli, MD; Jon M. Wigginton, MD; Jan Davidson-Moncada, MD, PhD; Rehab Abdallah, MB BCh; Tanya O'Neal, BS, MS; Christian Pavlovich, MD; Trinity J. Bivalacqua, MD PhD; Ashley Ross, MD; Charles G. Drake, MD, PhD; Drew M. Pardoll, MD, PhD; Emmanuel S. Antonarakis, MD; Antibody; Checkpoint blockade; Clinical trial; Tumor microenvironment
P339HCRN GI16-288: A phase II trial of perioperative CV301 vaccination in combination with nivolumab and systemic chemotherapy for resectable hepatic-limited metastatic colorectal cancerKristen R. Spencer, DO, MPH; Daniella E. Portal, BS; Christopher R. Heery, MD; Lynne M. Bauman, MS; Howard Hochster, MD; Elizabeth Poplin, MD; Usha Malhotra, MD; Richard B. Alexander, MD; David A. August, MD; Timothy Kennedy, MD; Miral Grandhi, MD; Russell C. Langan, MD; Edmund C. Lattime, PhD; Dirk F. Moore, PhD; Michael P. Kane, RPh, BCOP; Liesel Dudek, RN, OCN, CCRP; Sarah Nabeel; Darren Carpizo, MD, PhDCheckpoint blockade; Chemotherapy; Clinical trial; Immune adjuvant; Solid tumors; Surgery; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Vaccine
P340Pharmacokinetic and pharmacodynamic characterization of ALX148, a CD47 blocker, in patients with advanced malignancy and non-Hodgkin lymphomaFeng Jin, PhD; Nehal Lakhani, MD, PhD; Patricia LoRusso, DO; Laura Q. Chow, MD; Wells Messersmith, MD; Sangetha Bollini; Laura Doyle; Steven Kauder, PhD; Philip Fanning; Jaume Pons; Sophia S. Randolph, MD, PhD; Hong WanAntigen presenting cells; Checkpoint blockade; Clinical trial; Monocyte/Macrophage; Myeloid cells; Solid tumors; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P341Phase 1 study of CA-170, a first-in-class, orally available, small molecule immune checkpoint inhibitor (ICI) dually targeting VISTA and PD-L1, in patients with advanced solid tumors or lymphomasYung-Lue Bang, MD; Jeffrey A. Sosman, MD; Adil Daud, MBBS MD; Funda Meric-Bernstam, MD; Javier Garcia-Corbacho; Manish R. Patel, MD; James J. Lee, MD, PhD; Kyu-Pyo Kim; Joshua Brody, MD; Sun Young Rha; Marta Gil Martin; Santiago Ponce Aix, MD; Erika P. Hamilton, MD; Radhakrishnan Ramchandren, MD; Myung-Ju Ahn; James Spicer, MD, PhD; Simon Pacey; Gerald S. Falchook, MD; Hongwei Wang, MD, PhD; Guangxin Xu; Lisa Adams, BS; Anna W. Ma, MS; Robert Ghararvi; David Tuck; John D. Powderly, II, MD, CPICheckpoint blockade; Clinical study; Clinical trial
P342Nivolumab plus cisplatin/pemetrexed or cisplatin/gemcitabine as induction in resectable NSCLCScott Cowan, MD; Charalambos Solomides, MD; Craig D. Hooper, PhD; Larry Harshyne, PhD; Grace Lu-Yao, PhD; Hushan Yang, PhD; Linda Phan, BS; Dawn Poller, BS; Sung Whang, DNP, CRNP; Benjamin Leiby, PhD; Marie Werner-Wasik, MD; Bo Lu, MD; Jennifer Johnson, MD; Rita Axelrod, MD; Argiris Athanassios, MD PhD; Natathiel Evans, MD; Ralph G. Zinner, MDBiomarkers; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune adjuvant; Immune monitoring; Solid tumors; Surgery; Tumor evasion; Tumor microenvironment
P343Nivolumab plus weekly carboplatin and paclitaxel as induction therapy in resectable locally advanced head and neck cancerDavid Cognetti, MD; Joseph Curry, MD; Adam Luginbuhl, MD; Richard Goldman, MD; Charalambos Solomides, MD; Madalina Tuluc, MD; Stacey Mardekian, MD; Craig D. Hooper, PhD; Larry Harshyne, PhD; Grace Lu-Yao, PhD; Hushan Yang, PhD; Linda Phan, BS; Dawn Poller, BS; Benjamin Leiby, PhD; Voichita Bar-Ad, MD; Jennifer Johnson, MD; Rita Axelrod, MD; Argiris Athanassios, MD PhD; Ralph G. Zinner, MDBiomarkers; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune adjuvant; Immune monitoring; Solid tumors; Surgery; Tumor microenvironment
P344Spherical Nucleic Acid (SNA) TLR9 agonists induce long-term tumor-specific immune responses in synergy with PD-1 checkpoint inhibitionBart R. Anderson, PhD; SubbaRao Nallagatla, PhD; Richard Kang, PhD; Ekambar R. Kandimalla, PhDCheckpoint blockade; Immune adjuvant; Solid tumors; TLR
P345Depletion of plasma arginine with pegzilarginase enhances the anti-tumor activity of immune checkpoint inhibitorsMark D. Badeaux, PhD; Giulia Agnello, PhD; Danlee Enzler, BS; Leslie Priddy, B.S; Jason F. Wiggins, BS; Christopher Daige; Scott W. Rowlinson, PhD;Checkpoint blockade; Metabolism; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P346A phase 1b/2 study of the safety and efficacy of HBI-8000-nivolumab combination in melanoma (MEL), renal cell carcinoma (RCC) and non-small cell lung cancer (NSCLC)Nikhil I. Khushalani, MD; Zeynep Eroglu, MD; Andrew S. Brohl, MD; Thai H. Ho, MD, PhD; Heather Yeckes-Rodin, MD; Michael R. Kurman, MD; Reid P. Bissonnette; Mireille Gillings, PhD; Gloria Lee, MD, PhD; Checkpoint blockade; Clinical study; Clinical trial; Immune suppression; Regulatory T cell (Treg cell); Solid tumors; Tumor evasion; Tumor microenvironment
P347Targeting phosphatidylserine enhances the anti-tumor response to radiation therapy and immune checkpoint blockade in a preclinical melanoma modelSadna Budhu, PhD; Rachel A. Giese, MD; Aditi Gupta, BA; Sara Schad, BS; Olivier De Henau, MD; Roberta Zappasodi, PhD; Luis F. Campesato, PhD; Christopher A. Barker, MD; Jedd D. Wolchok, MD, PhD; Taha Merghoub, PhDCheckpoint blockade; Radiotherapy
P348Survival and immune modulation in homologous recombination deficient murine ovarian tumors using the PARP inhibitor, rucaparib and immune agonist, NKTR-214Deborah Charych, PhD; Liliane Robillard, Ph.D.; Andrew Simmons, PhD; Thomas C. Harding, Ph.D.; Minh Nguyen; Rachel Dusek, PhD; Biomarkers; Chemokine; Cytokine; Gene expression; Immune monitoring; NK/NK T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P349Spatial distribution analysis reveals increased PD1 expression on cytotoxic T cells leading to tumor regression upon combined MEK and HDAC inhibition in spontaneous PDAC mouse modelPhyllis F. Cheung, PhD; Jens T. Siveke; Anna Bazarna; Christian Neander; Konstantinos Savvatakis; Sven-Thorsten Liffers; Marija Trajkovic-Arsic; Aayush Gupta; Alexander HernerCoinhibition; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P350First-line nivolumab plus ipilimumab is associated with lower costs per responder versus sunitinib among patients with advanced renal cell carcinomaToni K. Choueiri; Keith A. Betts, PhD; Shuo Yang, PhD; Ella X. Du, MESc; Sumati Rao, PhD; Saby George, MD, FACPAntibody; Checkpoint blockade; Clinical study; Clinical trial; Solid tumors
P351ADU-S100 (MIW815) synergizes with checkpoint inhibition to elicit an anti-tumor CD8+ T cell response to control distal tumorsKelsey Sivick Gauthier, PhD; Anthony L. Desbien, PhD; Gabrielle Reiner; Leticia Corrales; Weiwen Deng; Laura H. Glickman, PhD; Natalie H. Surh; Brian Francica; David Kanne; Justin J. Leong, PhD; Ken Metchette; Lianxing Zheng; Charles Cho; Yan Feng; Jeffrey M. McKenna; Steve Bender, PhD; Chudi Ndubaku; Meredith L. Leong; Thomas W. Dubensky, Jr.; Andrea van Elsas; Sarah McWhirter; Checkpoint blockade; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P352Blocking colony stimulating factor 1 receptor (CSF-1R) and tropomyosin receptor kinase A (TrkA) improves the anti-tumor efficacy of immune checkpoint blockadeColm R. Duffy, B.A.; Stephen Mok; James P. Allison, PhD; Checkpoint blockade; Chemokine; Cytokine; Immune suppression; Monocyte/Macrophage; Myeloid cells; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P353Strategic combination of multiple immune-oncology agents to engage, expand, and enable immune responses against tumorsKellsye Fabian, PhD; Michelle Padget; Anthony Malamas; Rika Fujii; John Lee, MD; Jeffrey Schlom, PhD; James W. Hodge, PhD, MBACheckpoint blockade; Chemotherapy; Immune adjuvant; Solid tumors; Vaccine
P354Co-clinical trials of MEK inhibitor, anti PD-L1 and anti CTLA-4 combination treatment in Non-Small Cell Lung CancerPierre-Olivier Gaudreau; David H. Peng, Ph.D.; Bertha Leticia Rodriguez; Jared J. Fradette; Laura A. Gibson; Samrat Kundu, Ph.D.; Limo Chen, PhD; Jennifer A. Wargo, MD, MMSc; Don L. Gibbons, MD, PhD; Checkpoint blockade; Clinical study; Immune suppression; Regulatory T cell (Treg cell); Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P355Nivolumab plus ipilimumab is associated with lower number needed to treat compared with sunitinib for preventing death in advanced renal cell carcinomaSaby George, MD, FACP; Keith A. Betts, PhD; Shuo Yang, PhD; Ella X. Du, MESc; Jennifer Johansen, PharmD, BCPS; Sumati Rao, PhD; Toni K. Choueiri; Checkpoint blockade; Clinical study; Clinical trial; Targeted therapy
P356CXCR4 antagonism converts the cold tumor into hot tumor by enhancing the infiltration of antigen-specific CD8 T-cells in the TME leading to increased anti-tumor effects of anti-OX40Pankaj Gaur, PhD; Vivek Verma; Rahul Nandre, PhD; Ella Sorani, PhD; Abi Vainstein-Haras, MD; Galia Oberkovitz; Amnon Peled, PhD; Seema Gupta, PhD; Samir N. Khleif, MD; Stephen M. Shaw, PhD; Osnat Bohana-Kashtan; Costimulation; Immune monitoring; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Vaccine
P357Entinostat increases the frequency of tumor-specific effector T-cells and their functionality is enhanced by anti-OX40 leading to durable anti-tumor effectsRahul Nandre, PhD; Vivek Verma; Pankaj Gaur, PhD; Hua Wang; Peter Ordentlich, PhD; Lei Wang, PhD; Seema Gupta, PhD; Samir N. Khleif, MD; Samir N. Khleif, MD; Costimulation; Immune monitoring; T cell; Tumor microenvironment; Vaccine
P358ROR-gamma agonist induces long-lived Th17 cells in the TME leading to increased anti-tumor effects of agonist anti-OX40Pankaj Gaur, PhD; Vivek Verma; Rahul Nandre, PhD; Laura L. Carter, PhD; Xiao Hu, PhD; Xikui Liu, PhD; Seema Gupta, PhD; Samir N. Khleif, MDCostimulation; Immune monitoring; Tumor microenvironment; Vaccine
P359Immune cell responses and dose scheduling optimization of radiation and anti-PD-L1 treatment combination using a joint experimental and systems modeling approachYuri Kosinsky, PhD; Simon J. Dovedi, PhD; Kirill Peskov, PhD; Veronika Voronova, MSc; Lulu Chu, PhD; Donald R. Stanski, MD; Gabriel Helmlinger, PhD;Checkpoint blockade; Immune suppression; Radiotherapy; T cell; Tumor microenvironment
P360Enhanced anti-tumor efficacy of mesothelin-targeted immunotoxin LMB-100 combined with anti-PD-1 antibodyQun Jiang, PhD; Daniel Rathkey; Jingli Zhang; Ira H. Pastan, MD; Raffit Hassan, MDCheckpoint blockade; T cell; Targeted therapy
P361Phase 1/2 study of mogamulizumab (anti-CCR4), to deplete regulatory T-cells, in combination with PD-1 checkpoint inhibitor nivolumab in subjects with locally advanced or metastatic solid tumorsDavid Hong, MD; Olivier Rixe, MD, PhD; Vi K. Chiu, MD, PhD; Patrick Forde, MD; Tomislav Dragovich, MD; Yanyan Lou, MD; Asha Nayak, MD; Rom Leidner, MD; James Atkins, MD; Agron Collaku, PhD; Floyd E. Fox, PhD; Margaret A. Marshall, MD; Anthony J. Olszanski, MD, RPh; Antibody; Biomarkers; Checkpoint blockade; Clinical study; Regulatory T cell (Treg cell); Solid tumors; T cell; Targeted therapy
P362TTI-621 (SIRPαFc), an immune checkpoint inhibitor blocking the CD47 “do not eat” signal, enhances the anti-tumor effect of radiation and targeted therapy in ovarian cancer modelsLisa Johnson, PhD; Lei LC. Cui, PhD, BS; Hui Chen, BS; April Lewtak, MSc; Sean Oh; Carole Galligan, PhD; Simone Helke; Julia Berchadsky, PhD; Bob Uger, BS, PhDCheckpoint blockade; Monocyte/Macrophage; Radiotherapy; Solid tumors
P363Pegzilarginase in combination with agonist anti-OX40 therapy enhances T cell priming and effector function leading to improved tumor regression and survivalMelissa J. Kasiewicz, BS; Annah S. Rolig, Ph. D; Elizabeth R. Sturgill, PhD; Mark D. Badeaux, PhD; Scott W. Rowlinson, PhD; William L. Redmond, PhDCheckpoint blockade; Coinhibition; Costimulation; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P364Systemic anti-tumor immunity and immune memory formation by a novel TLR7/8 targeting agent NKTR-262 combined with CD122-biased immunostimulatory cytokine NKTR-214Saul Kivimae, PhD; Marlene Hennessy, BS; Rhoneil Pena; Yolanda Kirksey, MSc; Wildaliz Nieves, PhD; Phi Quach, BS PhD; Janet Cetz, BS; Zhongxu Ren, PhD; Haiying Cai, BS; BoLiang Deng, PhD; Wen Zhang, PhD; Fiore Cattaruzza; Christie Fanton, PhD; Neel K. Anand, PhD; Werner Rubas, PhD; Stephen K. Doberstein, PhD; Loui Madakamutil; Jonathan Zalevsky, PhDAntigen presenting cells; Costimulation; Cytokine; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); TLR
P365Triple checkpoint blockade targeting PD-1, TIM-3, and LAG3 improves T cell reinvigoration and antitumor efficacy over single and double combinationsJohanna K. Kaufmann, PhD; Geeta Sharma; Srimoyee Ghosh, PhD; Sujatha Kumar, PhD; Kevin G. Coleman, PhD; Sridhar Ramaswamy, MD; David Jenkins, PhDCheckpoint blockade; Coinhibition
P366Blockade of the PD-1/PD-L1 pathway with the Anti-PD-1 mAb, MGA012, enhances the biological activity of the B7-H3 x CD3 bispecific DART® molecule, MGD009Liqin Liu, PhD; Yinhua Yang; Ralph F. Alderson, PhD; Jonathan Li, PhD; Qihong Xu; Daorong Liu; Robert Burns; Vatana Long; Syd Johnson, PhD; Ezio Bonvini; Paul Moore, PhD;Antibody; Checkpoint blockade; T cell; Tumor antigens
P367Synergistic anti-tumor effects of TLR4 agonist G100 and anti-OX40 antibodyHailing Lu, MD, PhD; Alec Betancur; Howard JR. Lee; Jan H. Ter Meulen, MD, PhDAntigen presenting cells; Checkpoint blockade; T cell; Tumor infiltrating lymphocytes (TILs); TLR; Tumor microenvironment
P368Combination of a dipeptidyl peptidase inhibitor BXCL701 and biased CD122 agonist NKTR-214 with anti-PD1 provides functional immunological memory through inflammatory cell death.John MacDougall, PhD; Snigdha Gupta, PhD; Veena Agarwal; Luca Rastelli; Annie An; wenqing yang, PhD; Henry Li; Deborah Charych, PhD; Jonathan Zalevsky, PhD; Vincent O'Neill; Checkpoint blockade; Inflammation; Monocyte/Macrophage; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P369Pegilodecakin, a pegylated human IL-10 (AM0010), enhances the cytotoxicity of CAR-T cells In VitroScott McCauley, BA; Rakesh Verma, PhD; Martin Oft, MD; Adoptive immunotherapy; CAR T cells; Cytokine; Leukemia/Lymphoma; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs)
P370Forced expression of OX40L and inhibition of IDO within the murine glioblastoma microenvironment creates a potent anti-tumor immune response.Teresa Nguyen, BS; Yisel A. Rivera-Molina, PhD; Francisco Puerta-Martinez, PhD; Debora Kim; Xuejun Fan, BS; Frederick Lang, MD; Hong Jiang, PhD; Candelaria Gomez-Manzano, MD; Juan FueyoCostimulation; Immune suppression; Metabolism; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P371Reprogramming the immune phenotype of Rb-deficient tumor cells using BET inhibitionBrian M. Olson, PhD; Christina J. Hong; Riyue Bao, PhD; Gregory B. Lesinski, PhD, MPH; Akash Patnaik, MD, PhDBiomarkers; Checkpoint blockade; Immune suppression; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P372BETAMUNE, a replication competent type 5 adenovirus carrying a TGF-Beta trap, reverses resistance to a PD-L1 inhibitor in an immunocompetent mouse modelChristopher Larson, MD PhD; Corey A. Carter, MD; Bryan Oronsky, MD PhD; Tony Reid, MD PhD; Antibody; Antigen presenting cells; Checkpoint blockade; Gene expression; Immune suppression; Monocyte/Macrophage; T cell; Tumor antigens; Tumor microenvironment; Vaccine
P373Synergistic efficacy of duvelisib with checkpoint or co-stimulatory antibodies in a B cell lymphoma model: Advantages of dual inhibition of PI3K-delta and PI3K-gammaJonathan A. Pachter, PhD; David Weaver, PhD; Checkpoint blockade; Costimulation; Leukemia/Lymphoma; Monocyte/Macrophage; Myeloid cells; MDSC; Regulatory T cell (Treg cell); T cell; Targeted therapy; Tumor microenvironment
P374Sex-based heterogeneity of response to immunotherapy in non small cell lung cancerFabio Conforti, MD; Laura Pala; Vincenzo Bagnardi; Giuseppe Viale; Tommaso De Pas, MD; Elisabetta Pennacchioli; Emilia Cocorocchio; Pier Francesco F. Ferrucci, MD; Richard Gelber; Aron Goldhirsch; Checkpoint blockade; Chemotherapy
P375Simultaneous costimulatory T-cell engagement and checkpoint inhibition by PRS-344/ONC0055, a 4-1BB / PD-L1 bispecific compound for tumor localized activation of the immune systemMarina Pavlidou, PhD; Janet K. Peper; Lucia Pattarini; Christian Barthels; Eva-Maria Hansbauer; Rachida Bel Aiba; Milan Blanusa; Alix Scholer-Dahirel; Maximilien Grandclaudon; Celine Grand; Jamila Elhmouzi-Younes; Matthieu Rivière; Véronique Blanc, PhD; Christine Rothe; Shane Olwill; Antibody; Antigen presenting cells; Checkpoint blockade; Coinhibition; Costimulation; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P376Targeting vasoactive intestinal peptide signaling to enhance immunotherapy against solid tumorsSruthi Ravindranathan, PhD; Rebecca A. Pankove, MS; Yiwen Li, MS; Shuhua Wang, MD; Edmund K. Waller, MD, PhD, FACP; Mohammad Y. Zaidi, MD, MS; Gregory B. Lesinski, PhD, MPH; Coinhibition; Solid tumors
P377Combination immunotherapy anti-PD-1 anti-body (Ab) with CBT-101 (c-MET inhibitor) demonstrates enhanced activity in tumors not dependent on c-METMamatha Reddy; Gavin Choy, PharmD; Sarath Kanekal, PhD; Sanjeev Redkar, PhD;Antibody; Biomarkers; Checkpoint blockade; Clinical trial; Immune contexture; Immune suppression; T cell; Targeted therapy; Tumor microenvironment
P378NKTR-214 (CD122-biased agonist) and NKTR-262 (TLR7/8 agonist) combination treatment pairs local innate immune activation with systemic CD8+ T cell expansion to enhance anti-tumor immunityAnnah S. Rolig, Ph. D; Daniel C. Rose, BS; Saul Kivimäe; Deborah Charych, PhD; Werner Rubas, PhD; Jonathan Zalevsky, PhD; William L. Redmond, PhDMonocyte/Macrophage; Radiotherapy; Tumor infiltrating lymphocytes (TILs); TLR; Tumor microenvironment
P379Nanobodies® as a platform for multispecific targeting of immunomodulatory receptors.Anandi Sawant, Ph.D.; Douglas Linn, PhDBiomarkers; Checkpoint blockade; Gene expression; Tumor infiltrating lymphocytes (TILs)
P380Treatment-free survival (TFS), with and without immunomodulatory medications (IMMs), as a novel outcome applied to immuno-oncology (IO) agents in advanced melanomaSamantha Sawh; Meredith Regan, PhD; Lillian Werner; Ahmad A. Tarhini, MD, PhD; Sumati Rao, PhD; Komal Gupte-Singh, PhD; Corey Ritchings, PharmD; Michael B. Atkins, MD; David F. McDermott, MDCheckpoint blockade; Clinical study; Solid tumors
P381Schweinfurthin natural products promote immune-dependent regression of murine melanoma and improve anti-PD-1-based immunotherapy to achieve durable complete responses and protective immunityKathleen Kokolus, MS, PhD; Jeremy S. Haley, MS; Emily J. Koubek; Raghavendra Gowda, PhD; Saketh S. Dinavahi, PhD; Arati Sharma, PhD; David F. Claxton, MD; Klaus F. Helm, MD; Joseph J. Drabick, MD; Gavin P. Robertson, PhD; Jeffrey D. Neighbors, PhD; Raymond J. Hohl, MD; Todd D. Schell, PhDCheckpoint blockade; Myeloid cells; Metabolism; T cell; Tumor microenvironment
P382CD28-negative memory tumor infiltrating lymphocytes (TILs) maintain an activated cytotoxic phenotypeLillian Seu, PhD; Bijal Kakrecha, BS; Paul Fischer, MSc; Malinda Aitken; Alice Tang; Steven Nadler, PhD; Laurence Menard, PhD; Checkpoint blockade; Costimulation; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P383Combination therapy with M7824 (MSB0011359C) and NHS-muIL12 enhances antitumor efficacy in preclinical cancer modelsChunxiao Xu, PhD; Bo Marelli; Jin Qi; Guozhong Qin; Huakui Yu; Molly H. Jenkins; Kin-Ming Lo; Joern-Peter Halle; Yan Lan, MDCheckpoint blockade; Cytokine; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P384M7824 (MSB0011359C) is an effective combination partner with standard-of-care therapies in tumor modelsYan Lan, MD; Rinat Zaynagetdinov, M.D., PhD; Kenneth W. Hance; Chia Lin Chu, PhD; Chunxiao Xu, PhD; Bo Marelli; Jin Qi; Guozhong Qin; Huakui Yu; Giorgio Kradjian; Yanping Zhang; Molly H. Jenkins; Joern-Peter Halle; Kin-Ming LoCheckpoint blockade; Chemotherapy; Radiotherapy; Targeted therapy
P385Preliminary biomarker analysis of sitravatinib in combination with nivolumab in NSCLC patients progressing on prior checkpoint inhibitorVanessa Tassell; James Christensen; Peter Olson; Igor Rybkin, MD, PhD; Ticiana A. Leal, MD; Alexander I. Spira, MD, PhD, FACP; Collin Blakely, MD; Manish R. Patel, DO; Leora Horn, MD; Kai He, MD, PhD; David Berz, MD; Ryan Ramaekers, MD; Alison Savage; Timothy Larson; Donald Richards; Tammy Roque; Anthony Pham; Massarelli Erminia; James Uyeki; Abhinav B. Chandra, MD, FACP; Robert Jotte; Wangjian Zhong, MD; David Hong, MD; Joshua M. Lang, MD MS; Jennifer Schehr; Ticiana A. Leal, MD; Julio Fernandez Banet; Adam Pavlicek; Kai He, MD, PhD; Biomarkers; Checkpoint blockade; Immune suppression; T cell; Targeted therapy
P386CTX-471, a novel agonistic antibody targeting CD137, enhances the anti-tumor activity of tumor antigen-targeted antibodies and immune checkpoint inhibitors when used in combinationUgur Eskiocak, PhD; Wilson Guzman, BS; Robert Tighe, BSAntibody; Checkpoint blockade; Coinhibition; Costimulation; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor evasion
P387A multicenter, phase II study in patients with first line NSCLC, or recurrent PD-X refractory NSCLC or with recurrent HNSCC receiving Eftilagimod Alpha in combination with Pembrolizumab (TACTI-002)Christian Mueller, MSc; Frederic Triebel, MD, PhD; Chrystelle Brignone, PhD; Tatsiana Skrahina; Martin Forster; Antigen presenting cells; Checkpoint blockade; Clinical study; Clinical trial; Dendritic cell; Immune adjuvant; NK/NK T cell; Solid tumors; T cell; Targeted therapy
P388Combination of the Wee1 inhibitor adavosertib (AZD1775) with anti-PD-L1 shows activity in pre-clinical studiesViia Valge-Archer, PhD; Matthew King, PhD; Chrysiis Michaloglou, PhD; Jennifer Hare; Anisha Solanki, PhD; Susan Critchlow, PhD; Checkpoint blockade; Immune monitoring; Regulatory T cell (Treg cell); Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P389Digital spatial profiling on uveal melanoma tissue treated with combined radiofrequency ablation and ipilimumabTrieu My T. Van, PhD; Lisette EA. Rozeman, MD; Sarah Warren, PhD; Joseph M. Beechem, PhD; John Haanen, MD PhD; Christian Blank, MD PhD;Antibody; Biomarkers; Carcinogenesis; Checkpoint blockade; Clinical study; Clinical trial; Proteomics; Radiotherapy; Tumor microenvironment
P390Vasoactive Intestinal Peptide Antagonist Synergizing with PD1 Antibody Inhibits the Tumor Growth of Breast Cancer.Shuhua Wang, MD; Sruthi Ravindranathan, PhD; Yiwen Li, MS; Rebecca A. Pankove, MS; Parvin Forghani; Edmund K. Waller, MD, PhD, FACP; Shuhua Wang, MD; Antibody; Antigen presenting cells; Checkpoint blockade; Costimulation; Dendritic cell; Immune suppression; Inflammation; MDSC; Solid tumors; T cell; Tumor microenvironment
P391A phase 1b/2 trial of lenvatinib in combination with pembrolizumab in patients with advanced melanomaMatthew Taylor, MD; Nicholas J. Vogelzang, MD; Allen L. Cohn; Daniel E. Stepan; Robert C. Shumaker, Ph.D.,; Corina E. Dutcus; Matthew Guo; Emmett Schmidt, MD PhD; Drew Rasco; Angiogenesis; Antibody; Clinical trial; Solid tumors; Targeted therapy; Tumor microenvironment
P392A phase 1b/2 trial of lenvatinib in combination with pembrolizumab in patients with non-small cell lung cancerMarcia S. Brose, MD PhD; Nicholas J. Vogelzang, MD; Christopher Di Simone; Sharad K. Jain, MD; Donald Richards; Carlos A. Encarnacion; Drew Rasco; Robert C. Shumaker, Ph.D.,; Corina E. Dutcus; Daniel E. Stepan; Matthew Guo; Emmett Schmidt, MD PhD; Matthew Taylor, MD; Angiogenesis; Antibody; Clinical trial; Solid tumors; Targeted therapy; Tumor microenvironment
P393A phase 1b/2 trial of lenvatinib in combination with pembrolizumab in patients with urothelial cancerNicholas J. Vogelzang, MD; Carlos A. Encarnacion; Allen L. Cohn; Christopher Di Simone; Drew Rasco; Donald Richards; Matthew Taylor, MD; Corina E. Dutcus; Daniel E. Stepan; Robert C. Shumaker, Ph.D.,; Matthew Guo; Emmett Schmidt, MD PhD; James W. Mier, MD; Angiogenesis; Antibody; Clinical trial; Solid tumors; Targeted therapy; Tumor microenvironment
P394CX3CR1+CD8+ T cells is responsible to the clinical benefit of chemoimmunotherapy in metastatic melanoma patients after disease progression on PD-1 blockadeYiyi Yan, MD PhD; Roxana Dronca, MD; Svetomir N. Markovic, MD, PhD; Haidong Dong, MD, PhDBiomarkers; Checkpoint blockade; Chemotherapy; Clinical study; Immune monitoring; T cell
P395PD-1 blockade synergies with RetroNectin-activated cytokine-induced killer cells in pretreated metastatic renal cell cancerLingdi Zhao; Yonghao Yang; Tiepeng Li; Yong Zhang; Wei Li; Lu Han; Hongwei Lin; Quanli GaoAdoptive immunotherapy; Checkpoint blockade
P396Phase I trial of interferon-gamma (IFN-g) combined with nivolumab (nivo) in patients with advanced solid tumorsMatthew Zibelman, MD; Alexander W. Macfarlane; Kimberly Costello; Thomas McGowan; John P. O'Neill, BA; Rutika Kokate; Igor Astsaturov; Matthew Zibelman, MD; Matthew Zibelman, MD; Hossein Borghaei, MS, DO; Christina Chu, MD; Crystal Denlinger; Efrat Dotan, MD; Daniel Geynisman; Angela Jain, MD; Lainie Martin, MD; Elias Obeid, MD, MPH; Joseph Treat, MD; Namrata Vijayvergia, MD; Rohit Walia; Jennifer S. Winn, MD, MS; Jeffery A. Nieves, PharmD; Amy Grahn, MS; Jeffrey W. Sherman, MD, FACP; Karthik Devarajan; Karen Ruth; R K. Alpaugh, PhD; Essel D. Al-Saleem; Edna Cukierman, PhD; Kerry S. Campbell, PhD; Elizabeth R. Plimack, MD MS; Checkpoint blockade; Clinical study; Clinical trial; Cytokine; Solid tumors
P397Ectopic Tim-3 expression on T regulatory cells leads to lymphoproliferation and T cell activation.Hridesh Banerjee; Héctor M. Nieves-Rosado; Lawrence P. Kane, Ph.D.Autoimmunity; B cell; Biomarkers; CAR T cells; Checkpoint blockade; Chemokine; Clinical trial; Coinhibition; Costimulation; Cytokine; Epidemiology; Gene expression; Immune adjuvant; Immune monitoring; Immune suppression; Immune tolerance; Immune toxicity; Inflammation; Metabolism; Regulatory T cell (Treg cell); Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor evasion; Tumor microenvironment; Tumor stroma
P398Activation of the T Cell costimulatory protein CD137 using multivalent bicyclic peptidesKristen Hurov; Punit Upadhyaya; Jessica Kublin; Xueyuan Zhou; Julia Kristensson; Rachid Lani; Gemma Mudd; Katerine van Rietschoten; W. Frank An; Johanna Lahdenranta; Liuhong Chen; Gavin Bennett; Kevin McDonnell; Nicholas Keen; Peter U. Park, PhD; Antibody; Costimulation; Cytokine; NK/NK T cell; T cell
P399Induction of tumor-specific immune responses and modulation of the tumor micro-environment by TLR9 agonist lefitolimod in murine syngeneic tumor modelsKerstin Kapp, PhD; Barbara Volz; Detlef Oswald; Burghardt Wittig, MD, PhD; Manuel Schmidt, MScSolid tumors; T cell; Tumor infiltrating lymphocytes (TILs); TLR; Tumor antigens; Tumor microenvironment
P400Tumor-localizing NKp30/ICOSL vIgD fusion proteins direct effective dual CD28/ICOS T cell costimulation to B7-H6+ tumor cells in vitro and tumors in vivoSteven D. Levin, PhD; Lawrence Evans, BS; Erika Rickel; Katherine E. Lewis, PhD; Daniel Demonte; Martin Wolfson, BS; Stacey R. Dillon, PhD; Ryan Swanson, BS; Kristine M. Swiderek, PhD; Stanford L. Peng, MD, PhD; Antigen presenting cells; Costimulation; Immune contexture; Inflammation; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P401Blockade of T cell immunoreceptor with Ig and ITIM domains (TIGIT) leads to increased proliferation of bone marrow T cells from patients with acute myeloid leukemia (AML)Yoko Kosaka, PhD; Adam Lamble, MD; Fei Huang, PhD; Evan F. Lind, PhDCheckpoint blockade; Immune contexture; Immune suppression; Leukemia/Lymphoma; Myeloid cells; T cell; Tumor evasion; Tumor microenvironment
P402DuoBody-CD40x41BB conditionally enhances immune activation by crosslinking of CD40- and 4-1BB positive cellsAlexander Muik, PhD; Friederike Gieseke; Isil Altintas, PhD; Saskia Burm; Mustafa Diken; Christian Grunwitz; Sebastian Kreiter; David Satijn, PhD; Danita Schuurhuis; Ozlem Tureci; Ugur Sahin; Esther Breij, PhDAntibody; Antigen presenting cells; Costimulation; T cell; Tumor infiltrating lymphocytes (TILs)
P403Preliminary results from a first-in-human phase 1 study of the CD40 agonist monoclonal antibody (mAb) CDX-1140Rachel E. Sanborn, MD; Michael S. Gordon, MD; Mark O'Hara, MD; Nina Bhardwaj, MD, PhD; Yi He, PhD; Tracey Rawls; Tibor Keler, PhD; Michael Yellin, MDAntibody; Antigen presenting cells; Clinical trial; Dendritic cell; Immune monitoring
P404The discovery and characterization of PTZ-522 (ASP1951), a fully-human, high affinity agonistic anti-GITR tetravalent monospecific monoclonal antibodyCynthia Seidel-Dugan, PhD; Sonja Kleffel; Heather Brodkin; Sandra Abbott; Daniel Hicklin; Nels Nielson; Christopher Nirschl; Rebekah O'Donnell; Andreas Salmeron; Philipp Steiner, PhD; Christopher Thomas; William Winston; Cynthia Seidel-Dugan, PhDAntibody; Costimulation; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P405Agonistic IgM antibodies targeting immunostimulatory TNFRSF family members GITR and OX40 enhance immune responses beyond that of IgGsAngus M. Sinclair, PhD; Dalya Rosner, PhD; Beatrice Wang; Tasnim Kothambawala; Ling Wang; Susan Calhoun; Avneesh Salini; Sachi Rahman; RAMESH BALIGA, PhD; Bruce KeytAntibody; Costimulation; Cytokine; Regulatory T cell (Treg cell); T cell; T cell lineages; Targeted therapy
P406ALPN-202, a combined PD-L1/CTLA-4 antagonist and PD-L1-dependent CD28 T cell costimulator, elicits potent intratumoral T cell immunity superior to and differentiated from PD-L1 inhibitor monotherapyRyan Swanson, BS; Mark Maurer, BS; Chris Navas, BS; Chelsea J. Gudgeon, BS; Katherine E. Lewis, PhD; Martin Wolfson, BS; Sherri Mudri, BS; Kayla N. Susmilch, MS; Joe Kuijper; Stacey R. Dillon, PhD; Steven D. Levin, PhD; Kristine M. Swiderek, PhD; Stanford L. Peng, MD, PhDAntigen presenting cells; Checkpoint blockade; Coinhibition; Costimulation; Dendritic cell; Gene expression; Inflammation; Monocyte/Macrophage; T cell; Tumor infiltrating lymphocytes (TILs)
P407CTX-471, a novel agonistic antibody targeting CD137, eradicates very large tumors in vivo by selectively reprogramming the tumor microenvironment without causing hepatic toxicityUgur Eskiocak, PhD; Wilson Guzman, BS; Nora Zizlsperger, PhD; Benjamin Wolf; Christine Cummings; Thomas Daly; Puru Nanjappa, M.Sc; Lauren Milling; Xianzhe Wang; Lucy Liu; Samantha Ottinger; Jason Lajoie; Michael Schmidt; Robert Tighe, BS; Antibody; Biomarkers; Costimulation; Immune toxicity; NK/NK T cell; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P408Preclinical identification of the pharmacologically active dose range of the tumor targeted 4-1BB agonist MP0310 based on tumor regression, receptor occupancy and CD8 T lymphocyte expansionElmar Vom Baur, PhD, MBA, MEng; Ivana Tosevski, PhD; Laurent Juglair, MSc; Alexander Link, PhD; Guy Lemaillet; Heïdi Poulet; Christian Reichen, PhD; Patricia Schildknecht, MSc; Joanna Taylor, MSc; Alexander Titz, MSc; Waleed Ali; Doris Schaible; Mirela Matzner; Christof Zitt, PhD; Jörg Herbst, PhD, DABT; Keith Dawson, PhD; Julia Hepp, PhD; Dan Snell, PhD; Michael T. Stumpp, PhD; Victor Levitsky, MD PhD; Hong Ji, MD, PhD; Ivana Tosevski, PhDBiomarkers; Clinical study; Clinical trial; Costimulation; Immune monitoring; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P409Pharmacodynamic activity of MEDI1873, a Glucocorticoid-Induced tumor necrosis factor family-related protein (GITR) agonist molecule, administered intravenously to patients with advanced solid tumorsNicholas M. Durham, PhD; Nathan Standifer, PhD; Jennifer Cann, PhD; Christopher A. Morehouse, MD; Li Yan; Kristina Kovacina; Xu Liu; Jia Li; Yuling Wu; Katie Streicher, PhD; Paolo Vicini; Ayesh Perera; Rakesh Kumar, PhD; Raid Aljumaily, MD; Aung Naing, MD, FACP; Ashish Chintakuntlawar, MBBS, PhD; Naiyer A. Rizvi, MD; Helen Ross, MD; Michael S. Gordon, MD; Jeffrey Infante; Crystal Denlinger; Ani Balmanoukian, MD; Clinical trial; Costimulation; Cytokine; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor microenvironment
P410MV-626, a potent and selective inhibitor of ENPP1 enhances STING activation and augments T-cell mediated anti-tumor activity in vivoJason R. Baird, PhD; Gregory N. Dietsch, PhD, DABT; Vincent Florio, PhD; Michael Gallatin, PhD; Clayton D. Knox, MD; Joshua Odingo, PhD; Marka R. Crittenden, MD, PhD; Michael J. Gough, PhDCytokine; Immune adjuvant; Radiotherapy; Tumor microenvironment
P411An IL15/IL15Rα heterodimeric Fc-fusion engineered for reduced potency demonstrates an optimal balance of in vivo activity and exposureMatthew J. Bernett, PhD; Rajat Varma, PhD; Christine Bonzon, PhD; Liz Bogaert, PhD; Rumana Rashid, PhD; Ke Liu, PhD; Irene Leung, PhD; Suzanne Schubbert, PhD; Sung-Hyung Lee, PhD; Daniel C. Kirouac, PhD; Fei Hua, PhD; Nicole Rodriguez, PhD; Yoon Kim, PhD; Kendra N. Avery, PhD; Connie Ardila; Nargess Hassanzadeh-Kiabi, PhD; Umesh Muchhal, PhD; Seung Chu, PhD; Gregory L. Moore, PhD; John R. Desjarlais, PhDCytokine; NK/NK T cell; Solid tumors; T cell
P412Tumor cell-intrinsic defects in STING pathway signalingBlake Flood, BS; Leticia Corrales; Thomas F. Gajewski, MD, PhDCytokine; Gene expression; Tumor microenvironment
P413The FAP-IL2v immunocytokine is a versatile combination partner for cancer immunotherapyValeria Nicolini; Inja Waldhauer; Anne Freimoser-Grundschober; Federica Cavallo; Sara Colombetti; Marina Bacac; Gonzalo Acuna; Jehad Charo, PhD; Stefan Evers, PhD; Volker Teichgraeber, MD; Pablo Umana, PhD; Christian Klein, Dr rer nat; Christian Klein, Dr rer nat; Christian Klein, Dr rer nat; Antibody; Checkpoint blockade; Cytokine; T cell; Targeted therapy; Tumor stroma
P414Efficacy of anti-PD-L1/IL-15 fusion protein in multiple tumor modelsStella Martomo, PhD; Dan Lu, MA; Zhanna Polonskaya; Xenia Luna; Kevin McCracken; Jeegar PatelAntibody; Checkpoint blockade; Cytokine; NK/NK T cell; T cell; Tumor infiltrating lymphocytes (TILs)
P415Preclinical characterization of IL-2 Superkines engineered with biased CD8+ T cell stimulating propertiesFahar Merchant, PhD; Shafique Fidai; Aaron M. RingAntibody; Cytokine; Immune suppression; Immune toxicity; NK/NK T cell; Regulatory T cell (Treg cell); Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs)
P416Short-course IL-15 given as a continuous infusion leads to massive expansion of NK cells: Implications for combination therapy with anti-tumor antibodiesMilos Miljkovic, MD, MSc; Sigrid Dubois, PhD; Thomas A. Fleisher, MD; Jennifer H. Albert, RN; Thomas A. Waldmann, MD; Kevin C. Conlon, MD; Antibody; Clinical study; Clinical trial; Cytokine; NK/NK T cell; Solid tumors; T cell
P417SYTX80-013-A: an engineered IL-2 for the treatment of solid tumors with superior pre-clinical efficacy and safety evidenceMarcos E. Milla, PhD; Jerod L. Ptacin, PhD; Carolina E. Caffaro; Hans R. Aerni, PhD; Lina Ma; Kristine M. San Jose; Michael J. Pena; Robert W. Herman; Yelena Pavlova; David B. Chen; Laura K. Shawver; Lilia K. Koriazova; Ingrid B. JosephCytokine; NK/NK T cell; Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs)
P418Pre-clinical investigation of NKTR-255, a polymer-conjugated human IL-15 with a potent NK cell dependent anti-tumor efficacyTakahiro Miyazaki, MS; Murali K. Addepalli, PhD; Arunasree Lanka, PhD; Amol Murkar, MSc; Ravikumar Nutakki; Palakshi Obalapur, PhD; Peiwen Kuo, PhD; Phi Quach, BS PhD; Mekhala Maiti, PhD; Laurie VanderVeen, PhD; Ping Zhang, MS PhD; Loui Madakamutil; Jonathan Zalevsky, PhDCytokine; Immune monitoring; NK/NK T cell
P419NKTR-214 in combination with radiation produces a potent in situ vaccine in the syngeneic B78 melanoma model.Alexander Pieper, B.S.; Alexander L. Rakhmilevich, MD, PhD; Jacob Slowinski, Mr.; Amy K. Erbe, PhD; Jacquelyn A. Hank, PhD; Zachary S. Morris, MD, PhD; Deborah Charych, PhD; Paul M. Sondel, MD, PhDCytokine; NK/NK T cell; Solid tumors; T cell; Vaccine
P420Outpatient staccato pulse intravenous Interleukin-2 in metastatic melanomaWalter S. Quan, Jr., MD; Leah I. Gutierrez, RN BSN; Erin Johnson; Francine M. Quan, RN MSN OCNAdoptive immunotherapy; Cytokine
P421Combination of Pegilodecakin (AM0010) with Docetaxel improves immune cell-mediated anti-tumor response in mouse 4T1 tumor modelNavneet Ratti, BS, MBA; Rakesh Verma, PhD; Martin Oft, MDChemotherapy; Cytokine; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P422A polymer-associated human IL-15 (NKTR-255) has optimized biological activity and unique mechanisms of action on CD8 T Cells and NK CellsTanya O. Robinson, PhD; Shweta M. Hegde; Sarai C. Rivas, BS; Takahiro Miyazaki, MS; Kimberly S. Schluns, PhDCytokine; NK/NK T cell; T cell
P423Safety, pharmacokinetics and pharmacodynamic effects of ALKS 4230 in patients with advanced solid tumors from the ongoing dose escalation portion of a first in human (FIH) studyUlka Vaishampayan, MD; Vamsidhar Velcheti, MD FACP; David F. McDermott, MD; Mayer N. Fishman, MD, PhD; Chris J. Hoimes, MD; Daniel C. Cho, MD; Lei Sun, Ph.D; Juan C. Alvarez, PhD; Heather C. Losey, PhD; Rose Marino, MD; Emily L. Putiri, PhD; Sean Rossi; Lisa Von Moltke, MD; William J. Slichenmyer, MD; Marc S. Ernstoff, MDBiomarkers; Clinical study; Cytokine; NK/NK T cell; Regulatory T cell (Treg cell); Solid tumors; T cell
P424NKTR-214, an engineered IL-2, selectively depletes intratumoral Tregs and expands immunotherapy-induced effector T cell responsesMeenu Sharma, PhD; Hiep Khong, PhD; Faisal Fa'ak, MD; Brent C. Chesson; Barbara M. Pazdrak; Laura Maria S Kahn; Louise Janssen, MSc; Uddalak Bharadwaj; Binisha Karki; Zhilan Xiao, MD; Yared Hailemichael, PhD; Manisha Singh, PhD; Christina Vianden, MSc; David Tweardy; Salah Eddine Bentebibel; Cara Haymaker, PhD; Chantale Bernatchez; Adi Diab, MD; Ute Hoch, PhD; Jonathan Zalevsky, PhD; Willem W. Overwijk, PhD; Checkpoint blockade; Cytokine; Regulatory T cell (Treg cell); Vaccine
P425Pharmacokinetics and pharmacodynamic effects of ALKS 4230, an investigational immunotherapeutic agent, in cynomolgus monkeys after intravenous and subcutaneous administrationLei Sun, Ph.D; Jared Lopes, PhD; Heather L. Flick, MS; Erin A. Murphy, MS; Heather C. Losey, PhDBiomarkers; Cytokine; NK/NK T cell; Regulatory T cell (Treg cell); T cell
P426Chaos-based fractal radiomic features of nodule vasculature predicts response to immunotherapy on non-contrast lung CTMehdi Alilou, PHD; Marjan Firouznia, PHD; Pradnya Patil; Kaustav Bera, MBBS; Robert Gilkeson; Prabhakar Rajiah; Vamsidhar Velcheti, MD FACP; Anant Madabhushi, PhD; Bioinformatics; Biomarkers; Checkpoint blockade; Solid tumors
P427Novel immune competent murine glioblastoma models derived from Nestin-CreERT2 QuakingL/L; P53L/L; PTENL/L miceChao-Hsien Chen, MD; Renee Chin, MS; Genevieve P. Hartley, PhD; Takashi Shingu, PhD; David Hong, MD; Jian Hu, PhD; Michael A. Curran, PhD; Checkpoint blockade; Monocyte/Macrophage; Myeloid cells; Regulatory T cell (Treg cell); T cell; Tumor microenvironment
P428Spatially-resolved, high-plex digital profiling enables characterization of complex immune biology of the colorectal cancer microenvironmentSarah E. Church; Chris Merritt, PhD; Andrew M. White, BSc; Douglas Hinerfeld, PhD; Dan Zollinger; Giang Ong, MS; Kristi Barker, MS; Sarah Warren, PhD; Joseph M. Beechem, PhDBiomarkers; Gene expression; Immune contexture; Systems biology; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P429Integrative spatially-resolved, high-plex digital profiling enables characterization of complex immune biology in the tumor microenvironment of mesotheliomaCarmen Ballesteros Merino, PhD; Moritz Widmaier, PhD; Sarah E. Church; Thomas Herz, PhD; Alexei Budco, MSC; Dasa Medrikova, PhD; Ivan Kanchev, PhD; Andrew M. White, BSc; Douglas Hinerfeld, PhD; Shawn M. Jensen, PhD; John R. Handy, MD; Rachel E. Sanborn, MD; Carlo B. Bifulco, MD; Sarah Warren, PhD; Joseph M. Beechem, PhD; Bernard A. Fox, PhDBioinformatics; Biomarkers; Immune contexture; Immune monitoring; Immune suppression; Monocyte/Macrophage; Systems biology; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P430Radiomic texture features from MR perfusion images predicts pseudoprogression from true progression in glioblastoma patients: A multi-institutional studyNabil A. Elshafeey; Aikaterini Kotrotsou; Srishti Abrol; Islam Hassan; Ahmed Hassan; Kamel El Salek, MD; Fanny E. Moron; Meng Law; Pascal O. Zinn; Rivka Colen, MD; Bioinformatics; Biomarkers; Clinical study; Solid tumors
P431Radiomic Analysis differentiates between True Progression and Pseudo-progression in Glioblastoma patients: A large scale multi-institutional studySrishti Abrol; Aikaterini Kotrotsou; Nabil A. Elshafeey; Islam Hassan; Ahmed Hassan; Tagwa Idris, MD; Kamel El Salek, MD; Ahmed Elakkad, MD; Kristin Alfaro-Munoz; Shiao-Pei Weathers; Fanny E. Moron; John F. deGroot; Meng Law; Rivka Colen, MDBioinformatics; Biomarkers; Solid tumors
P432High tumor mutation burden (Hypermutation) in gliomas exhibit a unique predictive radiomic signatureIslam Hassan; Aikaterini Kotrotsou; Carlos Kamiya Matsuoka; Kristin Alfaro-Munoz; Nabil A. Elshafeey; Nancy Elshafeey; Pascal O. Zinn; John F. deGroot; Rivka Colen, MD; Bioinformatics; Biomarkers; Checkpoint blockade; Clinical study; Clinical trial; Solid tumors
P433Advances in multiplex fluorescence immunohistochemistry: 9 color imaging; whole slide multispectralCarla Coltharp, PhD; Yi Zheng, PhD; Rachel Schaefer; Ryan Dilworth, PhD; Linying Liu; Chichung Wang; Kristin Roman, MS; Clifford C. Hoyt, MS; Peter Miller, MS; Biomarkers; Immune suppression; Solid tumors; Systems biology; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment; Tumor stroma
P434Mathematical modeling of CAR T cell therapy outcomes to develop design specifications for CAR T cell engineeringAmritava Das, PhD; Rachel R. Grosser, undergraduate; Ambar C. Velazquez Albino, BS Student; Krishanu -. Saha; Christian M. Capitini, MD; Amritava Das, PhD; Adoptive immunotherapy; CAR T cells; T cell; T cell lineages
P435Image-based analysis of the myeloid cell landscape in the 3D co-culture with tumor cellsGera Goverse, PhD; Kuan Yan, PhD; Lars Geulen; Paul Vink, BS; Leo Price; Lidia Daszkiewicz, PhDAntigen presenting cells; Checkpoint blockade; Dendritic cell; Immune suppression; Monocyte/Macrophage; Myeloid cells; MDSC; Tumor infiltrating lymphocytes (TILs); TLR; Tumor evasion; Tumor microenvironment
P436Image analysis simulations of needle biopsy tumor specimens to investigate CD8+ TIL heterogeneityThomas Herz, PhD; Victor Matvienko; Tobias Wiestler, PhD; Rene Korn, PhD; Keith E. Steele, DVM, PhDBioinformatics; Solid tumors; Tumor infiltrating lymphocytes (TILs)
P437In vivo synergistic effect of checkpoint blockade and radiation therapy against chordomas in a humanized mouse modelWataru Ishida, MD; Kyle L. McCormick, B.A.; Aayushi Mahajan, M.S.; Eric M. Feldstein, B.S.; Michael Lim, MD; Jeffrey N. Bruce; Peter Canoll, MD PhD; Sheng-fu L. Lo, M.D.; Antibody; Checkpoint blockade; Cytokine; Immune tolerance; Radiotherapy; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P438Effect of CD3 affinity and normal tissue expression on the biodistribution and tumor targeting of MUC16xCD3 bispecific antibodies in MUC16 and CD3 humanized miceMarcus P. Kelly, PhD; Alison Crawford, PhD; Jason T. Giurleo, PhD; Richard Tavaré, PhD; Sosina Makonnen; Carlos Hickey; Makenzie Danton; Cody Arnold; Lauric Haber; Eric Smith, PhD; Dangshe Ma; William Olson, PhD; Gavin Thurston, PhD; Jessica R. Kirshner, PhDAntibody; Targeted therapy; Tumor antigens
P439A novel high-throughput, high-content real-time imaging platform to assess immunogenic cell killing activity of immunotherapeutic agents using patient-derived tumor samples.Melanie Mediavilla-Varela, PhD; Melba Marie Page, Ph.D.; Jenny Kreahling, PhD; Soner Altiok, MD, PhDBiomarkers; Immune monitoring; Immunoscore; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment; Tumor stroma
P440Open-source digital image analysis of whole-slide multiplex immunohistochemistryNikhil Lonberg, HSDG; Carmen Ballesteros Merino, PhD; Shawn M. Jensen, PhD; Bernard A. Fox, PhD; Bioinformatics; Biomarkers; Solid tumors; Tumor microenvironment; Tumor stroma
P442Automated quantification of whole-slide multispectral immunofluorescence images to identify spatial expression patterns in the lung cancer microenvironmentLorenz Rognoni, PhD; Vinay Pawar, PhD; Tze Heng Tan, MSc, PhD, Dipl.Ing.; Felix Segerer, PhD; Philip Wortmann, PhD; Sara Batelli, PhD; Pierre Bonneau; Andrew Fisher, PhD; Gayathri Mohankumar, MS; David Chain, PhD; Michael Surace, PhD; Keith E. Steele, DVM, PhD; Jaime Rodriguez-Canales, MDImmune contexture; Inflammation; Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P443Haplotype human immune system (HIS) modeling and co-engraftment of PDX: ImmunoGraft® platform for evaluation of pharmacodynamics of Immuno Oncology therapeuticsBhavana Verma, PhD; Maria Mancini, PhD; Angela M. Davies, MD; David Sidransky, MD; Amy Wesa, PhD; Neal Goodwin, PhDCheckpoint blockade; Myeloid cells; Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs)
P444Autologous human immune system (HIS) ImmunoGraft®: Mobilized peripheral blood (MPB) derived CD34 engraftment and lineage developmentBhavana Verma, PhD; Georgia Z. Chen, PhD; Edmund K. Waller, MD, PhD, FACP; Neal Goodwin, PhD; Angela M. Davies, MD; Amy Wesa, PhD; Nabil F. Saba, MDMyeloid cells; Stem cell/cancer-initiating cell; T cell; T cell lineages
P445Human CD33+ myeloid cells support metastatic colonization in a humanized mouse model of melanomaJan Martinek, PhD; Chun I. Yu, PhD; Te-Chia Wu; Kyung In. Kim; Elaheh Ahmadzadeh, PhD; Rick Maser; Florentina Marches; Patrick Metang; Pierre Authie; Hannah Brookes; Joshy George, Ph.D.; Jacques Banchereau; A. Karolina Palucka, MD, PhDMyeloid cells; Tumor evasion; Tumor microenvironment
P446Using monocytes to instill brain tumors with TILsMeenakshi Shanmugasundaram; Anna Zal; Shouhao Zhou; Amy B. Heimberger, MD; Tomasz Zal, PhD; Felix Nwajei, PhDAdoptive immunotherapy; Chemokine; Dendritic cell; Monocyte/Macrophage; Myeloid cells; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P447A case of checkpoint inhibitor-induced celiac diseaseDana Alsaadi; Neil J. Shah, MD; Aline Charabaty, MD; Michael Atkins, MD; Autoimmunity; Checkpoint blockade; Immune toxicity; Inflammation
P448Blockade of EphB4-ephrin-B2 interaction remodels the tumor immune microenvironment in head and neck cancersSana Karam, MD, PhD; Shilpa BhatiaMonocyte/Macrophage; Regulatory T cell (Treg cell); Targeted therapy; Tumor microenvironment
P449Improving PDAC outcomes through targeting immune populations and fibrosis by EphB4-ephrinB2 or Treg inhibition combined with radiationSana Karam, MD, PhDRadiotherapy; Regulatory T cell (Treg cell); Targeted therapy; Tumor microenvironment
P450The stapled peptide ALRN-6924, a dual inhibitor of MDMX and MDM2, displays immunomodulatory activity and enhances immune checkpoint blockade in syngeneic mouse modelsLuis A. Carvajal, PhD; Narayana Narasimhan, PhD; Jian-Guo Ren, PhD; Solimar Santiago, M.S; Manoj Samant, PhD; David Sutton, PhD; Vincent Guerlavais, PhD; D. Allen Annis, PhD; Manuel Aivado, MD/PhD; Checkpoint blockade; Coinhibition; Immune suppression; Immune tolerance; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P451Gal9/Tim-3 expression level is higher in patient with failed chemotherapy in AMLJustin P. Kline, MDPAOLA DAMA, PhD; Hongtao Liu, MD, PhD; Antibody; Biomarkers; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune monitoring; Immune toxicity; Leukemia/Lymphoma; Targeted therapy
P452Cisplatin treatment induces anti-tumor immune response in NSCLC by activation of the innate immune response pathwayCARMINIA M. DELLA CORTE, MD; Triparna Sen, PhD; Lixia Diao; Kavya Ramkumar; Carl M. Gay; Pan Tong; You-Hong Fan; Robert J. Cardnell; Don Gibbons, MD; John V. Heymach; Jing Wang; Lauren A. Byers, MDBioinformatics; Biomarkers; Chemotherapy; Gene expression; Proteomics
P453Enhancing the anti-tumor immunity elicited by alpha radiation-based brachytherapy using immunoadjuvants and blockade of suppressor cellsVered Domankevich-Bachar, DR; Adi Cohen; Margalit Efrati; Michael Schmidt; Hans Georg Rammensee; Itzhak Kelson; Yona KeisariImmune adjuvant; MDSC; Radiotherapy; Regulatory T cell (Treg cell); Solid tumors; TLR; Tumor microenvironment; Vaccine
P454Elucidating the functional role of type-1 interferon signaling following a medium-dose intermittent cyclophosphamide schedule in preclinical breast cancer modelsKshama Doshi, PhD; Cameron Vergato; Darren Roblyer, PhD; David J. Waxman, PhDChemokine; Chemotherapy; Cytokine; Gene expression; Solid tumors
P455Inducible T cell Co-stimulator (ICOS) is upregulated on lymphocytes following radiation of tumors and ICOS agonism in combination with radiation results in enhanced tumor controlMichael J. Gough, PhD; Shelly Bambina; Monica Gostissa, PhD; Christopher Harvey, PhD; David J. Friedman, PhD; Marka R. Crittenden, MD, PhDBiomarkers; Checkpoint blockade; Costimulation; Radiotherapy; T cell; Tumor microenvironment
P456Pressure-enabled delivery of CAR-T cells into the porcine pancreas results in highly-targeted pancreatic delivery with minimal systemic exposure and no pancreatitis or severe systemic cytokine releaseJohn C. Hardaway, MD, PhD; James E. Chomas, PhD; David Jaroch, PhD; Prajna Guha, PhD; N. Joseph Espat, MD, FACS; Steven C. Katz, MD; Aravind Arepally, MDCAR T cells; Solid tumors; T cell; Targeted therapy
P457TP53 gene therapy emanating from the investigational agent SGT-53 is capable of augmenting cancer immunotherapy in multiple murine syngeneic tumor modelsJoe B. Harford, PhD; Sang-Soo Kim, PhD; Kathleen F. Pirollo, PhD; Antonina Rait, PhD; Manish Moghe; Esther H. Chang, PhDCheckpoint blockade; Gene expression; Immune tolerance; Immune toxicity; MDSC; NK/NK T cell; Solid tumors; T cell; Targeted therapy; Tumor microenvironment
P458Contribution of an immune system to RACPP mediated drug deliveryDina V. Hingorani, PhD; Maria F. Camargo; Matthew K. Doan, B.S.; Joesph Aguilera; Stephen R. Adams; Sunil J. Advani; Monocyte/Macrophage; Radiotherapy; Solid tumors; Targeted therapy; Tumor microenvironment; Tumor stroma
P459Detection of tumor-specific antibodies and their binding regions in mice cured from B78 melanomaAnna Hoefges, MS; Amy K. Erbe, PhD; Drew Melby; Alexander L. Rakhmilevich, MD, PhD; Jacquelyn A. Hank, PhD; Claire Baniel, BS, BA; Clinton M. Heinze, BS; Irene M. Ong, PhD; Sean Mcilwain, PhD; Hanying Li, PhD; Richard Pinapati, PhD; Bradley H. Garcia, II, PhD; Jigar Patel, PhD; Zachary S. Morris, MD, PhD; Paul M. Sondel, MD, PhDAdoptive immunotherapy; Antibody; B cell; Bioinformatics; Biomarkers; Checkpoint blockade; Immune monitoring; Neoantigens; Pediatric tumors; Proteomics; Radiotherapy; Solid tumors; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P460Chemotherapy induced immunogenic cell death and response to STING agonist in high-grade serous ovarian cancerMadhuri Koti, DVM, MVSc, PhD; Sarah Nersesian, MSc; Nichole Peterson, MSc; Julie-Ann Francis; Chemokine; Chemotherapy; Cytokine; Gene expression; Immune adjuvant; Inflammation; Tumor microenvironment
P462Fractionated radiation with PD-1 blockade promotes anti-tumor activity in mouse head and neck cancerGo Inokuchi, MD, PhD; Elizabeth McMichael, PhD; Masahiro Kikuchi, MD, PhD; David A. Clump, MD PhD; Robert FerrisCheckpoint blockade; Radiotherapy; Tumor infiltrating lymphocytes (TILs)
P463HfO2 nanoparticles exposed to radiotherapy generate abscopal effect through activation of CD8+ T cells.Audrey Darmon, BS; Ping Zhang, MD, PhD; Sébastien Paris, PhDImmune monitoring; Monocyte/Macrophage; Radiotherapy; Regulatory T cell (Treg cell); Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P464Molecular targeted radiotherapy (MTRT) enhances the efficacy of immunotherapy increasing complete response rates of both local and distant disease in a “cold” tumor modelsRavi Patel, MD, PhD; Reinier Hernandez, PhD; Peter M. Carlson; Ryan Brown; Abigail Jaquish; Luke Zangl; Raghava N. Sriramaneni, PhD; Joseph Grudzinski, PhD; Bryan Bednarz, PhD; Jamey Weichert, PhD; Paul M. Sondel, MD, PhD; Zachary S. Morris, MD, PhD; Checkpoint blockade; Cytokine; Radiotherapy; Targeted therapy
P465Comparison of peripheral immune response during chemoradiotherapy (CRT) with and without PD-1 blockade in patients with head and neck squamous cell carcinoma (HNSCC)Juan L. Callejas-Valera, PhD; Daniel Vermeer; Christopher T. Lucido; Caitlin Williamson; Marisela Killian; William C. Spanos, MD; Paola Vermeer, PhD; Steven F. Powell, MD; Checkpoint blockade; Chemotherapy; Clinical study; Clinical trial; Immune monitoring; MDSC; Radiotherapy; T cell
P466TGF beta blockade enhances radiotherapy abscopal efficacy effects in combination with anti-PD1 and anti-CD137 immunostimulatory monoclonal antibodies.Maria E. Rodriguez-Ruiz, MD, PhD; Inmaculada Rodriguez; Lina Mayorga; Tania Labiano; benigno Barbes; inaki etxeberria; Mariano Ponz-Sarvise; arantza Azpilicueta; elisabeth Bolanos; Miguel F.Sanmamed; Pedro Berraondo; Felipe Manuel Alfonso Calvo; Mary Helen Barcelos-Hoff; Jose Luis Perez-Gracia; Ignacio Melero, MD, PhD;Antibody; Immune suppression; Radiotherapy
P467Augmenting immunity with IAP antagonists in PDACKevin Roehle, PhD; Michael Dougan, MD, PhD; Stephanie K. Dougan, PhDCheckpoint blockade; Dendritic cell; Immune monitoring; T cell; Tumor infiltrating lymphocytes (TILs)
P468Transcriptomic profiles conducive to immune-mediated tumor rejection in human breast cancer skin metastases treated with ImiquimodMariya Rozenblit, MD; Wouter R. Hendrickx, PhD; Adriana Heguy; Luis Chiriboga; Cynthia Loomis; Karina Ray; Farbod Darvishian, MD; Mikala Egeblad, PhD; Davide Bedognetti, MD, PhD; Sylvia Adams, MD; Chemokine; Cytokine; Gene expression; Granulocyte; Inflammation; Monocyte/Macrophage; NK/NK T cell; T cell; TLR; Tumor microenvironment
P469TCR repertoire correlates of response in tumor-bearing mice treated with radiotherapy and CTLA-4 blockadeNils-Petter Rudqvist, PhD; Claire Lhuillier, PhD; Erik Wennerberg, PhD; Jennifer S. Sims, PhD; Sandra Demaria, MD; Bioinformatics; Checkpoint blockade; Neoantigens; Radiotherapy; Surgery; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P470Targeting DNA damage response promotes anti-tumor immunity through STING-mediated T-cell activation in small cell lung cancerTriparna Sen, PhD; Triparna Sen, PhD; Bertha Leticia Rodriguez; Limo Chen, PhD; Naoto Morikawa; Junya Fujimoto; Lixia Diao; Youhong Fan; Jing Wang; Bonnie S. Glisson; Ignacio Wistuba, MD; Julien Sage; John V. Heymach; Don Gibbons, MD; Lauren A. Byers, MDCheckpoint blockade; Coinhibition; Cytokine; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P471Mertk is a therapeutic target in combination with radiation to promote adaptive immune tumor responsesGarth Tormoen, MD, PhD; Jason R. Baird, PhD; Gwen F. Kramer, BS; Shelly Bambina; Marka R. Crittenden, MD, PhD; Michael J. Gough, PhDMonocyte/Macrophage; Radiotherapy; Solid tumors
P472Immunogenic tumor antigen is required in antitumor effect of cisplatin monotherapy and its combination with anti-PD-L1Daiko Wakita, PhD; Toshiki Iwai, BS; Masamichi Sugimoto, PhD; Osamu KondohCheckpoint blockade; Chemotherapy; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P473Enhancing abscopal responses to radiation therapy by manipulating autophagyTakahiro Yamazaki, PhD; Marissa Rybstein; Aitziber Buqué, PhD; Ai Sato; Lorenzo Galluzzi, PhD; Checkpoint blockade; Immune adjuvant; Metabolism; Radiotherapy; Solid tumors; Systems biology
P474Antibody targeting of WNT signaling modulator dickkopf1 (DKK1) enhances innate anti-tumor immunity and complements anti-PD-1 therapyMike Haas; Heidi Heather; Franziska Schürpf-Huber; Lane Newman; Walter Newman, PhD; Mike Kagey; Min Yang, Ph.D.;Antibody; Checkpoint blockade; NK/NK T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P475Avadomide in combination with nivolumab results in increased activated and memory T-cells and enhances CD8+ tumor infiltration in hepatocellular carcinoma patientsPatrick Hagner, PhD; Fadi Towfic, PhD; Alfredo Romano, MD; Julien Edeline, MD; Carlos Gomez-Martin, MD, PhD; Antoine Hollebecque, MD; Robin Kate Kelley, MD; Armando Santoro, MD, PhD; Michael Pourdehnad, MD; Anita Gandhi, PhDBiomarkers; Checkpoint blockade; Clinical study; Gene expression; Leukemia/Lymphoma; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P476EWS-FLI1 expression level modulates T-cell mediated tumor apoptosis in Ewing sarcoma.Claire M. Julian; Ariel N. Klinghoffer; Hether M. Bernard, MD; Linda M. McAllister-Lucas; Kelly M. Bailey, MD, PhDSolid tumors; T cell; Tumor microenvironment
P477HMBD-002-V4: A novel anti-VISTA antibody that uniquely binds murine and human VISTA and potently inhibits tumor growth by remodeling the immunosuppressive tumor microenvironmentJerome D. Boyd-Kirkup, PhD; Dipti Thakkar, PhD; Vicente Sancenon, PhD; Siyu Guan, PhD; Konrad Paszkiewicz, PhD; Piers Ingram, PhDAntibody; Checkpoint blockade; Coinhibition; Immune suppression; Myeloid cells; MDSC; Systems biology; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P478Platelets as immune suppressors in anti-cancer immune responses Ana Micaela M. Carnaz Simões; Morten O. Holström, PhD; Mads H. Andersen, PhD; Per Thor Straten, PhD; Immune suppression; Immune tolerance; T cell; Tumor evasion
P479NG-641: an oncolytic T-SIGn virus targeting cancer-associated fibroblasts in the stromal microenvironment of human carcinomasMatthieu Besneux; Brian R. Champion, PhD; Nalini Marino; Marilena Patsalidou; Gianfranco di Genova; Sam Illingworth; Stefania Fedele; Lorna Slater; Darren Plumb; Katy West; Joshua Freedman, BS; Len Seymour; Kerry S. Fisher, MD PhD; Alice C. Brown, PhDChemokine; Immune suppression; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P480Transcriptomic characterization of tumor vs. peripheral blood NK cells in head and neck cancer patientsFernando Concha-Benavente, MD, PhD; Robert FerrisImmune suppression; NK/NK T cell; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P481The epigenetic underpinnings of regulatory T cell fragility in the tumor microenvironmentBecky Dadey, BS; Abigail E. Overacre-Delgoffe, PhD; Ting Wang; Zhe Sun; Rong Zhang, MS; Wei Chen; Natalie Rittenhouse; Amanda Poholek; Tracy Tabib; Robert Lafyatis; Creg Workman, PhD; Dario A. Vignali, PhD; Immune suppression; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P482Humanization and characterization of novel, best in class isoform-specific anti-TGFβ monoclonal antibodiesMatteo Brioschi; Pamela Cheou; Jacques Van Snick, PhD; Catherine Uyttenhove, PhD; George Coukos, MD, PhD; Gerd Ritter; Steven M. Dunn, PhDAntibody; Cytokine; Immune suppression; Solid tumors; T cell; Targeted therapy; Tumor evasion; Tumor microenvironment; Tumor stroma
P483Iron and HLA-G: Neglected immunosuppressive molecules in the human microenvironmentXian P. Jiang; Robert Elliott; NK/NK T cell; Tumor microenvironment
P484Pharmacokinetics, pharmacodynamics, and safety of FLX475, an orally-available, potent, and selective small-molecule antagonist of CCR4, in healthy volunteersPrimary Author - Sjoerd van Marle, M.D.; Ewoud-Jan van Hoogdalem, Ph.D., R.Ph.; Daniel Johnson; Abood Okal, PhD; Paul D. Kassner, PhD; David J. Wustrow, PhD; William Y. Ho, MD, PhD; Steven A. Smith; Checkpoint blockade; Chemokine; Clinical study; Clinical trial; Immune suppression; Regulatory T cell (Treg cell); T cell; Tumor evasion; Tumor microenvironment
P485Testing of two bispecific SNIPER™ antibodies targeting mouse tumor-infiltrating TregsAnna Hoefges, MS; Bonnie Hammer; Amy K. Erbe, PhD; Alexander L. Rakhmilevich, MD, PhD; Jacquelyn A. Hank, PhD; Bryan Glaser, Ph.D.; Lucas Bailey, PhD; Roland Green, PhD; Paul M. Sondel, MD, PhDAntibody; Immune adjuvant; Immune monitoring; Immune suppression; Regulatory T cell (Treg cell); Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P486Antisense oligonucleotides targeting CD39 and PD-L1 modulate the immunosuppressive tumor microenvironment and have potent anti-tumor activityFrank Jaschinski, PhD; Tamara Thelemann; Frank Jaschinski, PhD; Richard Klar, PhD; Monika Schell; Lisa Hinterwimmer; Sven Michel; Melanie Buchi; Abhishek S. Kashyap; Alfred Zippelius, MDImmune suppression; Myeloid cells; MDSC; Regulatory T cell (Treg cell); T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P487The role of MultiOmyx in illustrating the pancreatic tumor microenvironmentJuncker-Jensen Juncker-Jensen, PhD; Juncker-Jensen Juncker-Jensen, PhD; Juncker-Jensen Juncker-Jensen, PhD; Jun Fang; Judy Kuo; Mate Nagy; Qingyan Au; Eric Leones; Flora Sahafi; RaghavKrishna Padmanabhan; Nicholas Hoe; Josette William, PhD, MD; Antibody; Biomarkers; Immune suppression; Inflammation; Monocyte/Macrophage; Myeloid cells; Regulatory T cell (Treg cell); Solid tumors; Tumor microenvironment; Tumor stroma
P488Targeting hIDO1 with 3rd generation antisense oligonucleotides for modulation of the tumor microenvironmentRichard Klar, PhD; Sandra Kallert, PhD; Tamara Thelemann; Sven Michel; Monika Schell; Lisa Hinterwimmer; Alfred Zippelius, MD; Frank Jaschinski, PhDImmune suppression; Myeloid cells; MDSC; Metabolism; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P489Prognostic significance of tumor-associated macrophage content in head and neck squamous cell carcinoma: A meta-analysisAyan T. Kumar, BS; Alexander Knops, BA; Brian P. Swendseid, MD; Ubaldo Martinez-Outschoom, MD; Larry Harshyne, PhD; Nancy Philp, PhD; Ulrich Rodeck, MD PhD; Christopher M. Snyder; Adam Luginbuhl, MD; David Cognetti, MD; Jennifer Johnson, MD; Joseph Curry, MD; Joseph Curry, MD; Autoimmunity; Immune adjuvant; Immune monitoring; Immune suppression; Monocyte/Macrophage; Myeloid cells; Targeted therapy; Tumor evasion; Tumor microenvironment; Tumor stroma
P490Characterization of the tumor immune microenvironment in treatment-naïve EGFR-mutant NSCLC uncovers a suppressed immune phenotypeXiuning Le; Alexandre Reuben; Marcelo V. Negrao, MD; Won-Chul Lee, PhD; Edwin Parra; Carmen Behrens, MD; Humam Kadara, PhD; Ignacio Wistuba, MD; Jianjun Zhang, MD, PhD; John V. Heymach; Immune suppression; Tumor microenvironment
P491The DNA methyltransferase inhibitor, guadecitabine, has beneficial immunomodulatory effects on myeloid derived suppressor cells, and augments adoptive immunotherapy for solid tumorsAndrea Luker, Ph.D. candidate; Harry D. Bear, M.D., Ph.D.; Andrea Luker, Ph.D. candidate; Daniel H. Conrad, Ph.D.; Laura Graham; Adoptive immunotherapy; Antigen presenting cells; Costimulation; Immune suppression; Myeloid cells; MDSC; Solid tumors; Tumor microenvironment
P492Myeloid-derived suppressor cells (MDSC) assessment using a fully automated sequential chromogenic multiplex assayAnna Martirosyan, Dr; Assil Benchaaben; Aurélie Collignon, MS; Emilie Bonzom, Trainee; Matthieu Duval, Apprentice; Emmanuel Prestat, PhD; Christophe Haond; Jacques Fieschi, PhDBiomarkers; Immune contexture; Immune monitoring; Immune suppression; Myeloid cells; MDSC; Tumor evasion; Tumor microenvironment; Tumor stroma
P493B cells in glioblastoma are associated with diminished survivalIleana S. Mauldin, PhD; Jasmin Jo, MD; Nolan A. Wages, PhD; Samuel J. Young, BS; Loren D. Erickson, PhD; Maria-Beatriz S. Lopes, MD, PhD; Craig L. Slingluff, Jr., MD; Camilo E. Fadul, MD, FAANB cell; Biomarkers; Immune suppression; Tumor infiltrating lymphocytes (TILs)
P494Targeting the CCR2/MCP-1 chemokine axis for cancer therapyPayal Mittal; Tatiana Akimova; Craig Leach; Jose Clemente; Matthew Sender; Liqing Wang; Joseph Marino; Yao Chen; Peiling Chen; Brandon Turunen; Wayne W. Hancock, MD, PhD; Immune monitoring; Inflammation; Monocyte/Macrophage; Myeloid cells; MDSC; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P495Pegfilgrastim, but not Plinabulin, generates a blood myeloid cell (BMC) repertoire with a predominant immunosuppressive phenotypeDouglas W. Blayney, MD; Stephan Ogenstad; Yuankai Shi; Lihua Du; Lan Huang; Ramon Mohanlal, MD, PhD, MBA; Clinical study; Clinical trial; Granulocyte; Immune contexture; Immune suppression; Monocyte/Macrophage; Myeloid cells; MDSC; T cell; Tumor microenvironment
P496Innate and adaptive immune responses to metastatic colorectal cancer differ by sex and correlate with survival Anita L. Ray, PhD; Robert A. Nofchissey, BS; Sarah F. Adams, MD; William T. Berry; Katherine T. Morris, MD, FACS; Cytokine; Immune contexture; Monocyte/Macrophage; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P497Study of anti-HER2 CAR T cells in the immunosuppressive ependymoma tumor microenvironmentAnandani Nellan, MD; Marissa Kane; Andrea Griesinger; Andrew Donson; Vladimir Amani; Nicholas Foreman; Davis Witt; Jean Mulcahy LevyCAR T cells; Pediatric tumors; Solid tumors; Tumor microenvironment
P498Characterization of the tumor microenvironment in a spontaneous mouse model of cholangiocarinoma: a robust model for evaluating therapeutic interventions for treating the diseaseLuis I. Ruffolo, MD; Katherine M. Jackson, MD; Joseph D. Murphy, M.Sc; Nathania Figueroa, MD; Brian A. Belt, JD; David C. Linehan, MD; Peter A. Prieto, MD, MPH; Checkpoint blockade; Granulocyte; Immune suppression; Inflammation; Monocyte/Macrophage; Myeloid cells; MDSC; Solid tumors; Tumor stroma
P499Correlation of immune escape mediated defects in the HLA class I antigen-presenting machinery with the immune cell infiltration and prognosis in oral squamous cell carcinomaBarbara Seliger, MD, PhD; Claudia Wickenhauser, MD, PhDAntigen presenting cells; Tumor evasion; Tumor microenvironment
P500Novel bispecific antibody preferentially and efficiently depletes tumor-associated immunosuppressive myeloid cells and enhances therapeutic responses to PD-L1 blockade in immune-excluded tumor modelSeng-Lai Tan, PhD; Sangeetha Palakurthi, PhD; Jacqueline LeeAntibody; Chemokine; Cytokine; Immune suppression; Monocyte/Macrophage; Myeloid cells; MDSC; Regulatory T cell (Treg cell); Solid tumors; Tumor infiltrating lymphocytes (TILs)
P501Multiplex immunofluorescence evaluation of immune cell relationships within PDAC resection tissues using tailored analysis of multi-spectral image component dataAlison Bigley, CSci, FIBMS; Lorcan Sherry, PhD; Mark Anderson, BSc; Mariana Beltran; Dawn B. Lyster, MSc; Mike Millar; Biomarkers; Immune contexture; Monocyte/Macrophage; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P502Novel approach of modulating immune cell metabolism in the tumor microenvironment to enhance efficacy of immunotherapyFrank Boriello, MD/PhD; HongBum Lee; Vincent O'Neil; Ted Kim, PhD; James Lederer, PhD; Sanghee Yoo, PhD; Immune suppression; MDSC; Metabolism; Regulatory T cell (Treg cell); Tumor microenvironment
P503Characterization of the immune desert in metastatic non-small cell lung cancer (NSCLC) and the use of cell proliferation to predict clinical response to immune checkpoint inhibitors (ICIs)Jason Zhu, MD; Matthew K. Labriola, MD; Daniele Marin, MD; Shannon J. McCall, MD; Edwin Yau, MD, PhD; Grace K. Dy; Sarabjot Pabla, MSc, PhD, BS; Sean T. Glenn, PhD; Carl D. Morrison, MD, DVM; Daniel J. George, MD; Tian Zhang, MD; Jeffrey M. Clarke, MDBiomarkers; Checkpoint blockade; Solid tumors; Tumor microenvironment
P504Nutritional measures to boost immunosurveillance of breast cancer by NK cellsLorenzo Galluzzi, PhD; Aitziber Buqué, PhD; Maria Perez-Lanzon, M.Sc (Master of Science); Guido Kroemer, MD, PhD; Takahiro Yamazaki, PhD;Checkpoint blockade; Gene expression; Immune suppression; Metabolism; NK/NK T cell; Solid tumors; Tumor evasion
P505The gut microbiome of metastatic melanoma patients initiating systemic therapy is influenced by host factors including diet, probiotic and antibiotic useVancheswaran Gopalakrishnan, MPH, PhD; Christine N. Spencer, PhD; Jennifer L. McQuade, MD; Miles Andrews, MD, PhD; Beth Helmink, MD PhD; Alexandria P. Cogdill, MEng; Md AW. Khan; Elizabeth Sirmans; Lauren E. Haydu, MS, BChe, MIPH; Eliza Posada; Elizabeth Burton; Isabella C. Glitza, MD, PhD; Rodabe N. Amaria, MD; Sapna Patel, MD; Adi Diab, MD; Michael K. Wong, MD PhD FRCPC; Hussein A. Tawbi, MD, PhD; Wen-Jen Hwu, MD, PhD; Michael Davies, MD, PhD; Patrick Hwu, MD; Robert Jenq, MD; Kelly Nelson, MD; Carrie Daniel-MacDougall, MPH, PhD; Lorenzo Cohen; Jennifer A. Wargo, MD, MMSc; Checkpoint blockade; Epidemiology; Microbiome
P506Subcutaneous and intramuscular fat indices predict survival in advanced stage cancer patients treated with immunotherapyDylan J. Martini, BA; Julie M. Shabto, BA; Yuan Liu, PhD; Milton Williams; Amir I. Khan; Colleen Lewis; Hannah Collins; Mehmet Akce; Haydn T. Kissick; Bradley C. Carthon, MD, PhD; Walid L. Shaib, MD; Olatunji B. Alese, MD; Conor Steuer, MD; Christina Wu, MD; David H. Lawson, MD; Ragini R. Kudchadkar, MD; Bassel El-rayes, MD; Suresh S. Ramalingam, MD; Taofeek K. Owonikoko, MD, PhD; R. Donald Harvey, PharmD; Viraj A. Master, MD, PhD; Mehmet A. Bilen, MD; Biomarkers; Checkpoint blockade; Metabolism; Solid tumors; Tumor microenvironment
P507Body mass index as a predictor of survival in advanced stage cancer patients treated with immunotherapyJulie M. Shabto, BA; Dylan J. Martini, BA; Yuan Liu, PhD; Milton Williams; Amir I. Khan; Colleen Lewis; Hannah Collins; Mehmet Akce; Haydn T. Kissick; Bradley C. Carthon, MD, PhD; Walid L. Shaib, MD; Olatunji B. Alese, MD; Conor Steuer, MD; Christina Wu, MD; David H. Lawson, MD; Ragini R. Kudchadkar, MD; Bassel El-rayes, MD; Suresh S. Ramalingam, MD; Viraj A. Master, MD, PhD; Taofeek K. Owonikoko, MD, PhD; R. Donald Harvey, PharmD; Mehmet A. Bilen, MDBiomarkers; Checkpoint blockade; Clinical trial; Metabolism; Solid tumors; Tumor microenvironment
P508Obesity promotes PD-1 mediated T cell dysfunction and tumor pro-gression but superior anti-tumor effects upon checkpoint blockadeZiming Wang, MS; Jesus I. Luna, Ph.D.; Cordelia Dunai, MS; Lam T. Khuat; Catherine T. Le, BS; Ethan G. Aguilar; Annie Mirsoian; Christine M. Minnar, PhD; Kevin M. Stoffel, MS; Ian Sturgill; Steven Grossenbacher; Robert Canter, MD, MAS, FACS; Arta Monjazeb, MD, PhD; William J. Murphy, PhD; Ziming Wang, MSCheckpoint blockade; Metabolism
P509Tumor spheroid model to dissect the interplay between myeloid cells and cancer cellsElaheh Ahmadzadeh, PhD; Jan Martinek, PhD; Florentina Marches; Chun I. Yu, PhD; A. Karolina Palucka, MD, PhDDendritic cell; Monocyte/Macrophage; Myeloid cells; Tumor microenvironment
P510Monoclonal antibodies targeting the MerTK receptor de-repress the innate immune responseDiego Alvarado, Ph.D.; Mike Murphy; Laura Vitale, BS; Thomas O'Neill, BA; Andrew Proffitt; Jay Lillquist; Gwenda Ligon; Craig Polson; Anna Wasiuk; Jeffrey Weidlick, BS; Jenifer Widger, BA; Laura Mills-Chen; Andrea Crocker, BS; Colleen Patterson; Russell Hammond; Li-Zhen He, MD; Joel Goldstein, PhD; Lawrence Thomas, PhD; Henry Marsh, BS PhD; Tibor Keler, PhD; Richard GedrichAntibody; Antigen presenting cells; Carcinogenesis; Checkpoint blockade; Chemokine; Cytokine; Dendritic cell; Immune suppression; Inflammation; Monocyte/Macrophage
P511Co-expression of a chimeric NKG2D receptor with membrane bound IL-15 enhances natural killer cell function and long-term persistence in vitro and in vivoLuxuan Buren; James Trager, PhD; CAR T cells; NK/NK T cell; Targeted therapy
P512AO-176, a next generation CD47 antibody, induces immunogenic cell deathBen J. Capoccia, PhD; Michael J. Donio; Ronald R. Hiebsch; Alun J. Carter; Robyn J. Puro; Benjamin J. Capoccia; W. Casey Wilson; Daniel S. Pereira; Pamela T. Manning; Robert W. Karr; Antibody; Checkpoint blockade; Immune toxicity; Monocyte/Macrophage
P513Targeting adenosinergic immunometabolic suppression with engineered natural killer cells for immunotherapy of CD73+ solid tumorsAndrea Chambers, MS; Kyle B. Lupo; Jiao Wang, PhD; Sandro Matosevic, PhD; Adoptive immunotherapy; Cytokine; Metabolism; NK/NK T cell; Solid tumors; Targeted therapy; Tumor microenvironment
P514High efficiency electroporation of primary human NK cellsJian Chen, PhD; Xiaofeng Xia, PhD; Adoptive immunotherapy; NK/NK T cell
P515Novel class of small molecule direct STING agonists as potential cancer immunotherapyMonika Dobrzanska; Stefan Chmielewski, PhD; Magdalena Zawadzka; Adam Radzimierski; Karolina Gluza; Katarzyna Wojcik-Jaszczynska; Maciej Kujawa; Grzegorz Topolnicki; Grzegorz Cwiertnia; Aleksandra Poczkaj; Izabela Dolata; Jolanta Mazurek; Magdalena Mroczkowska; Agnieszka Gibas; Tushar Mahajan; Marcin Les; Wojciech Schonemann; Sylwia Sudol; Kinga Michalik; Magdalena Sieprawska-Lupa; Katarzyna Banaszak; Charles-Henry Fabritius; Karolina Wiatrowska; Agnieszka Adamus; Krzysztof BrzozkaAntigen presenting cells; Cytokine; Dendritic cell; Inflammation; Tumor evasion; Tumor microenvironment; Tumor stroma
P516SIRPα blockade increases the activity of multiple myeloid lineage cells, enhances dendritic cell cross-presentation, and aids in remodeling the tumor microenvironmentBrian Francica; Brandy Chavez; Erik Voets, Ph.D.; Andrea van Elsas; Hans van Eenennaam, PhD; Meredith L. LeongAntibody; Antigen presenting cells; Checkpoint blockade; Myeloid cells; Solid tumors
P517Pan-allele anti-SIRPα antibodies that block the SIRPα–CD47 innate immune checkpointErik Voets, Ph.D.; Paul Vink, BS; David Lutje Hulsik; Marc Paradé; Sanne Spijkers; Inge Reinieren-Beeren; Joost Rens; Wout Janssen, BS; Brian Francica; Meredith L. Leong; Andrea van Elsas; Hans van Eenennaam, PhD; Antibody; Antigen presenting cells; Checkpoint blockade; Dendritic cell; Granulocyte; Monocyte/Macrophage; Myeloid cells; Tumor microenvironment
P518Non-canonical cross-presenting dendritic cells mediate anti-tumor immunityEllen Duong, Sc.B.; Stefani Spranger, PhD; Antigen presenting cells; Dendritic cell; Myeloid cells; Tumor microenvironment
P519Agonist redirected checkpoint platform (ARC), engineering bi-functional fusion proteins (SIRP -Fc-CD40L), for cancer immunotherapyGeorge J. Fromm, Jr., PhD; Suresh de Silva, Ph.D.; Taylor H. Schreiber, MD, PhD; Antigen presenting cells; Checkpoint blockade; Costimulation; Cytokine; Dendritic cell; Immune suppression; Monocyte/Macrophage; T cell; Tumor antigens
P520Natural killer (NK) cells orchestrate the antitumor activities of Listeria monocytogenes (Lm)-based immunotherapyRachelle Kosoff, PhD; Lauren K. Pettit, MS; Nithya Thambi, MS; Kimberly Ramos, BS; Jeff Jones; Skye Kuseryk; Robert G. Petit, PhD; Michael F. Princiotta, MS, PhD; Kim Jaffe, PhD; SANDY HAYES, PhDDendritic cell; Gene expression; NK/NK T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P521T cell immunotherapies trigger innate immunity and aseptic inflammation leading to potent anti-tumor and off-targets effectsDaniel Hirschhorn-Cymerman, PhD; Jacob Ricca; Billel Gasmi, MD; Olivier De Henau, MD; Levi M. Mangarin, BS; Sadna Budhu, PhD; Yanyun Li, PhD MD; Czrina Cortez, BS; Cailian Liu, MD; Roberta Zappasodi, PhD; Sean Houghton; Allison Betof; Katherine S. Panageas, PhD; Mario Lacuoture, MD; Tracvis Hollmann, MD PhD; Jean Albrengues, PhD; Mikala Egeblad, PhD; Taha Merghoub, PhD; Jedd D. Wolchok, MD, PhD; Checkpoint blockade; Costimulation; Immune toxicity; Inflammation; Solid tumors; T cell
P522Immune-profiling reveals DNAM-1 downregulation in tumor-infiltrating lymphocytes of renal cell carcinoma patientsVeronika Kremer, MSc; Christina Seitz, MSc; Ann-Helen Scherman Plogell, MD; Eugenia Colon, MD, PhD; Evren Alici, MD, PhD; Andreas Lundqvist, PhDImmune contexture; Immune suppression; NK/NK T cell; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P523Engineering responsive multi-functional natural killer cells derived from induced pluripotent stem cells capable of overcoming immunometabolic suppression for immunotherapy of solid tumorsKyle B. Lupo; Andrea M. Chambers; Jiao Wang, PhD; Sandro Matosevic, PhD; Immune suppression; NK/NK T cell; Stem cell/cancer-initiating cell; Targeted therapy; Tumor microenvironment
P524Preclinical characterization of BMS-986299, a first-in-class NLRP3 innate agonist with potent antitumor activity, alone and in combination with checkpoint blockadeMichael Wichroski, Ph.D; Huilin Qi; Jie Fang; Adam Bata; Ramola Sane; Anwar Murtaza, PhD; Ashvinikumar Gavai, PhD; Ragini Vuppugalla; Frederic Reu; Dana Banas; Julie Carman, PhD; Damien Bertheloot; Dennis Dean; Luigi Franchi; Shomir Ghosh; Gary Glick; Jonathan D. Graves; Ana Kitanovic, PhD; Eicke Latz; Xiaokang Lu, BS; Edward Olhava; William Roush; Brian Sanchez; Andrea Stutz; David Winkler, PhD; John Hunt, PhD; Miguel A. Sanjuan, PhD; James BurkeCheckpoint blockade; Cytokine; Dendritic cell; Inflammation; Monocyte/Macrophage; Myeloid cells; Solid tumors
P525Preclinical characterization of BMS-986301, a differentiated STING agonist with robust antitumor activity as monotherapy or in combination with anti‒PD-1Gary Schieven, Ph.D.; Jennifer Brown; Jesse Swanson, BS; Caitlyn Stromko; Ching-Ping Ho, BS; Rosemary Zhang; Bifang Li-Wang; Hongchen Qiu; Huadong Sun; Brian Fink, PhD; Anwar Murtaza, PhD; John Hunt, PhDAntibody; Checkpoint blockade; Inflammation; NK/NK T cell; T cell; Tumor microenvironment
P526The potential role of fibroblast activation protein as a natural killer cell immune checkpoint in pancreatic cancerLouis M. Weiner, MD; Shangzi Wang, PhD; Allison O'Connell, MD/PhD Candidate;Checkpoint blockade; Coinhibition; NK/NK T cell; Solid tumors; Tumor microenvironment; Tumor stroma
P527Imprime PGG, a novel cancer immunotherapeutic, engages the complement system to prime innate immune effector functionsXiaohong Qiu, BS; Ben Harrison, MS; Adria B. Jonas, MS; Anissa S. Chan, PhD; Nadine Ottoson, BS; Keith Gorden, BS; Checkpoint blockade; Chemokine; Cytokine; Granulocyte; Immune monitoring
P528Tumor-derived alpha fetoprotein suppression of mitochondrial metabolism via PGC1-α and SREBP-1 expression and activity in human dendritic cellsPatricia M. Santos, PhD; Ashley Menk, BS; Jian Shi, MD; Allan Tsung, MD; Greg M. Delgoffe, PhD; Lisa H. Butterfield, PhDAntigen presenting cells; Dendritic cell; Immune suppression; Myeloid cells; Metabolism; Tumor antigens
P529Efficacy and safety profile of AU7R-104, a small molecule targeting CD47/SIRPα pathwayPottayil Sasikumar, PhD; Chennakrishnareddy Gundala; Wesley Balasubramanian, PhD; Sudarshan Naremaddepalli, PhD; Archana Bhumireddy, MSc; Sandeep Patil, PhD; Amit Dhudashiya; Vijaysai Rayavarapu, MSc; Dodheri Samiulla, PhD; Sanjeev Giri, PhD; Rajesh Eswarappa, Ph.D., DABT., ERT; Kiran Aithal, PhD; Girish Daginakatte, PhD; Murali Ramachandra, PhDCheckpoint blockade; Monocyte/Macrophage
P530Novel bispecific antibody targeting NKp30 receptor enhances NK-mediated killing activity against multiple myeloma cells and overcomes CD16A deficiencyJennifer Watkins-Yoon; Jamie L. Schafer, PhD; Sara Haserlat; Sri Vadde; Xin Kai; Allison Nelson; Lucy Liu; Nora Zizlsperger, PhD; Amanda Oliphant; Michael Schmidt; Robert Tighe, BS; MONIA DRAGHI, PhDAntibody; Leukemia/Lymphoma; NK/NK T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor evasion; Tumor microenvironment
P531Redirecting immunometabolic suppression by targeting purinergic signaling enhances immunotherapy of solid tumors with CAR-NK cellsSandro Matosevic, PhD; Jiao Wang, PhD; Kyle B. Lupo; Andrea M. Chambers; Antibody; Cytokine; Immune monitoring; Immune suppression; Metabolism; NK/NK T cell; Solid tumors; Targeted therapy; Tumor evasion; Tumor microenvironment
P532Preclinical characterization of a first-in-class ILT4 antagonist, MK-4830Luis A. Zuniga, Ph.D.; Barbara Joyce-Shaikh, B.S.; Douglas C. Wilson; Holly Cherwinski; Yi Chen; Grein Jeff; Eric Muise, MS; Wendy Blumenschein, BA; Xiaoyan Du; Edward Hsieh; Sripriya Dhandapani; Gulesi Ayanoglu; Maribel Beaumont; Shuli Zhang; Michael Rosenzweig, DVM, PhD; Robert Kastelein, PhD; Robert N. Stein, MD PhD; Dennis Underwood, PhD; Milan Blanusa; Rachel Altura, MD; Daniel J. CuaAntibody; Antigen presenting cells; Checkpoint blockade; Clinical trial; Granulocyte; Immune suppression; Immune tolerance; Monocyte/Macrophage; Myeloid cells; MDSC
P533Gastrointestinal symptoms observed after chimeric antigen receptor T–cell therapyHamzah Abu-Sbeih, M.D.; Tenglong Tang, MD; Jason R. Westin, MD; David Richards, MD; Sattva S. Neelapu, MD; Yinghong Wang, MD, PhD; Adoptive immunotherapy; CAR T cells; Immune tolerance; Immune toxicity
P534Timely endoscopic and histological evaluation is critical to provide appropriate management for immune checkpoint inhibitor induced colitisHamzah Abu-Sbeih, M.D.; Faisal S. Ali; Wenyi Luo, MD; Wei Qiao, PhD; Gottumukkala S. Raju, MD; Yinghong Wang, MD, PhD; Checkpoint blockade; Clinical study; Immune suppression; Immune toxicity; Inflammation; T cell
P535Upper gastrointestinal symptoms and associated endoscopic and histologic features in patients receiving immune checkpoint inhibitorsHamzah Abu-Sbeih, M.D.; Tenglong Tang, MD; Wenyi Luo, MD; Wei Qiao, PhD; David Richards, MD; Yinghong Wang, MD, PhD; Autoimmunity; Checkpoint blockade; Clinical study; Immune suppression; Immune toxicity; T cell
P536The fate of immune–mediated diarrhea after the resumption of immune checkpoint inhibitor treatmentHamzah Abu-Sbeih, M.D.; Faisal S. Ali; Jianjun Gao, MD PhD; Yinghong Wang, MD, PhD; Checkpoint blockade; Clinical study; Immune suppression; Immune toxicity; T cell
P537Immune checkpoint inhibitor–induced colitis as a predictor of survival in metastatic melanomaHamzah Abu-Sbeih, M.D.; Faisal S. Ali; Wei Qiao, PhD; Yang Lu, MD; Sapna Patel, MD; Adi Diab, MD; Yinghong Wang, MD, PhD; Checkpoint blockade; Clinical study; Immune suppression; Immune tolerance; Immune toxicity; T cell
P538Precision medicine in immune checkpoint inhibitor–induced diarrhea and colitis treatment: the advent of organ targeted vedolizumab therapyHamzah Abu-Sbeih, M.D.; Faisal S. Ali; Dana Alsaadi; Joseph Jennings, MD; Wenyi Luo, MD; Zimu Gong, MD; David Richards, MD; Aline Charabaty, MD; Yinghong Wang, MD, PhD; Autoimmunity; Checkpoint blockade; Clinical study; Immune suppression; Immune toxicity
P539Development of cutaneous squamous cell carcinoma in patients receiving anti PD-1/PD-L1 therapyAmanda Herrmann, MD PhD; Priyadharsini Nagarajan, MD PhD; Vivek Subbiah, MD; Kelly Nelson, MD; Alexander J. Lazar, MD, PhD; Courtney Hudgens, MS; Khalida Wani, PhD; Michael T. Tetzlaff, MD PhD; Jennifer A. Wargo, MD, MMSc; Anisha B. Patel, MD; Anisha B. Patel, MD; Clinical study; Immune toxicity
P540Safety of cancer patients with preexisting autoimmune diseases presenting in the emergency center following immune checkpoint blockadeMohsin Shah, MD; Mazen N. Jizzini, MD; Imad El. Majzoub, MD; Aiham Qdaisat, MD; Cielito C. Reyes, DrPH; Sai-Ching J. Yeung, MD, PhD; Autoimmunity; Checkpoint blockade; Immune toxicity
P541The immunosuppressive tumor microenvironment (TME) in Epstein-Barr virus (EBV)-positive and EBV-negative gastric cancers: implications for immunotherapySepideh Besharati, MD; Tracee L. McMiller, MS; Mark Yarchoan; Qingfeng Zhu, PhD; Elizabeth L. Engle, MSc; Janis M. Taube, MD, MSC; Alan Berger; Robert A. Anders, MD, PhD; Suzanne L. Topalian, MDBiomarkers; Checkpoint blockade; Coinhibition; Cytokine; Gene expression; Immune suppression; Monocyte/Macrophage; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P542Exposure to anti-PD-1 causes Functional Differences in Tumor-Infiltrating Lymphocytes in Solid TumorsCaitlin Creasy, MS; Cara Haymaker, PhD; Marie-Andrée Forget, Ph.D.; Gopal Singh, PhD; Coya Tapia, MD, PhD; Jeane M. Painter, PhD; Funda Meric-Bernstam, MD; Chantale Bernatchez; Aung Naing, MD, FACPClinical trial; Solid tumors; Tumor infiltrating lymphocytes (TILs)
P543Neoantigen heterogeneity as contributing factor for non-responders to neoantigen specific T-cell therapy in patients with metastatic gastrointestinal malignanciesEric M. Groh, MD; Jared Gartner, MS; Todd D. Prickett, PhD; Yong Li, MS; Steven A. Rosenberg, MD, PhD; Paul F. Robbins, PhDAdoptive immunotherapy; Neoantigens; Solid tumors; Tumor infiltrating lymphocytes (TILs)
P544Interferon-γ regulates the expression of PD-L1 and NKG2D ligand families in nasopharyngeal carcinoma Lingling Guo; Yu Chen, MD, PhD; Lingling Guo; Chuanben Chen; Biomarkers; Immune tolerance; NK/NK T cell; Tumor evasion; Tumor microenvironment
P545The tumor inflammasome functions as a rheostat for regulating the efficacy of anti-PD-1 antibody immunotherapy by driving the recruitment of myeloid-derived suppressor cellsBala Thievanthiran, Ph.D.; Kathy Evans, B.S.; Nicholas DeVito, M.D.; Christine Xiao, BS; Yubin Kang, M.D.; David Hsu, M.D., Ph.D.; Alisha H. Holtzhausen, PhD; Brent A. Hanks, MD, PhD; Checkpoint blockade; Chemokine; Granulocyte; Immune suppression; Myeloid cells; MDSC; Solid tumors; TLR; Tumor evasion; Tumor microenvironment
P546Targeted hypoxia reduction restores T cell infiltration and sensitivity to immunotherapy in prostate cancerPriyamvada Jayaprakash, PhD; Midan Ai, PhD; Arthur Liu; Pratha Budhani, BS, MS; Todd Bartkowiak; Jie Sheng; Casey Ager, BS; Courtney Nicholas, PhD; Ashvin Jaiswal; Yanqiu Sun; Krishna Shah; Sadhana Balasubramanyam; Nan Li; Guocan Wang, PhD; Jing Ning; Anna Zal; Tomasz Zal, PhD; Michael A. Curran, PhDCheckpoint blockade; Immune suppression; Myeloid cells; MDSC; Metabolism; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P547Adoptive cell therapy and intratumoral nanoplexed poly I:C as an effective immunotherapy in interferon-signaling deficient melanomaAnusha Kalbasi, MD; Kevin Hakimi, B.S.; Sarah Kremer; Christine Nguyen, B.S.; Davis Y. Torrejon, MD; Giulia Parisi; Pedro P. Lopez-Casas, PhD; Marisol Quintero, PhD, MBA; Antoni Ribas, MD, PhDAdoptive immunotherapy; T cell; TLR; Tumor evasion
P548Association between corticosteroid use at time of immune checkpoint inhibitor (CPI) therapy initiation and CNS disease control/survival in patients with brain metastases (BM)William J. Kelly, MD; Neil J. Shah; Michael T. Serzan, MD; Barbara T. Ma; Matthew Blackburn; Sebastian Ochoa; Alice R. Knoedler; Jeevan M. Puthiamadathil; Ariana Santopietro; Subha Madhavan; Anas Belouali; Shruti Rao; Kellie Gardner, NP; Suthee Rapisuwon, MD; Stephen Liu, MD; Deepa Subramaniam; Michael B. Atkins, MD; Geoffrey T. Gibney, MD; Checkpoint blockade; Solid tumors
P549Cell proliferation defines an additional mechanism of immune escape in non-small cell lung cancerCarl D. Morrison, MD, DVM; Sarabjot Pabla, MSc, PhD, BS; Mary Nesline, MS; Jeffrey Conroy, BS; Sean T. Glenn, PhD; Antonios Papanicolau-Sengos, MD; Paul DePietro, PhD; Jacob Hagen; Blake Burgher, BS, RN; Vincent Giamo, BS, MS; Jonathan Andreas, MS; Felicia L. Lenzo; Maochun Qin, MD, MS; Yirong Wang, M.S.; Devin Dressman, PhD; Konstantin Dragnev, MD; Laura J. Tafe; Tian Zhang, MD; Jeffrey M. Clarke, MD; Matthew Zibelman, MD; Luis de la Cruz-Merino; Alexander C. MacKinnon; Robin Jacob; Oliver Binns; Neel Shah; Mark Gardner; Grace K. DyBiomarkers; Solid tumors; Tumor microenvironment
P550Defeating checkpoint resistance: Highly specific inhibition of latent TGFβ1 activation renders resistant solid tumors vulnerable to PD-1 blockadeThomas Schürpf; Constance J. Martin, PhD; Christopher Littlefield, MSc; Christopher Chapron, M.S.; Stefan Wawersik, PhD; Ashish Kalra, Ph.D.; Kevin Dagbay, PhD; Allison Simpson, BS; Francis Danehy, B.S.; Christopher Boston; Anastasia Nikiforov, MS; Susan Lin, BS; Justin Jackson, BS; Pichai Raman, PhD; Elizabeth Rainbolt, B.S.; Laurie Comfort, BS; David Harris; Madelyn Cecil-Taylor; Lorne Celentano; Danielle Meadows; gregory J. carven, PhD; Alan Buckler, Ph.D; Allan Capili, PhD; Abhishek Datta, PhDAntibody; Checkpoint blockade; Immune suppression; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P551Suppression of immune response by tumor cell-induced XIAP-NFκB signaling and targeting strategies to overcome immunotherapy resistance in breast cancerMichael A. Morse; Scott J. Sauer, PhD; Myron Evans; Mohamed M. Ibrahim, MD; Xuhui Bao, MD; Pranalee Patel; Gayathri Devi, MSc., PhD; Gayathri Devi, MSc., PhDImmune suppression; Tumor evasion
P552Analysis of TIL from human carcinoma combined with tissue imaging and in vitro models uncovers tumor-inflicted T cell deviations related to immune escape and strategies of interventionElfriede Noessner, PhD; Petra U. Prinz; Ilias Masouris; Anna Mendler; Adoptive immunotherapy; Costimulation; Immune contexture; Monocyte/Macrophage; Solid tumors; T cell; Tumor evasion; Tumor microenvironment
P553Targeting mechanisms of immune suppression via CXCR2 inhibition to enhance checkpoint blockadeElaine Pinheiro, PhD; Sarah Javaid, PhD; Ruban Mangadu; Marlene Hinton; Yun Wang; Sonia Feau; Amanda A. Watkins, PhD; Andrey Loboda, PhD; Xue Liang; Dario Gutierrez; Rebecca Ruck; Michael Rosenzweig, DVM, PhD; Vincent Giranda, MD, PhD; Chemokine; Immune suppression; Myeloid cells; MDSC; Tumor infiltrating lymphocytes (TILs)
P554Role of immune escape for resistance to cancer (immuno) therapy and its strategies targeting these mechanismsBarbara Seliger, MD, PhD; Juergen Bukur, PhD MDCytokine; Targeted therapy
P555A role for mutant p53 in mediating T cell immune evasion in pancreatic adenocarcinoma and other solid tumors Deborah A. Silverman, BS; Supporting Author - Emily Ashkin; Simone Punt, PhD; Minying Zhang; Leila Williams, MSc; Anil Korkut; Jason Roszik, PhD; Anirban Maitra, MBBS; Patrick Hwu, MD; Adoptive immunotherapy; Antigen presenting cells; Bioinformatics; Gene expression; Immune suppression; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P556STAT3-related cytokines drive IR-specific immune suppression of effector, memory and naïve, peripheral blood CD8+ T cells in cancer patientsAshwin Somasundaram, MD; Dario A. Vignali, PhD; Anthony R. Cillo, PhD; James Herman; John M. Kirkwood, MD; Robert L. Ferris, MD, PhD; Tullia C. Bruno, PhDAntibody; Biomarkers; Checkpoint blockade; Chemokine; Cytokine; Immune monitoring; Immune suppression; Immune tolerance; T cell; T cell lineages; Tumor evasion; Tumor microenvironment
P557Overcoming genetically-based resistance mechanisms to PD-1 blockadeDavis Y. Torrejon, MD; Gabriel Abril-Rodriguez, MS; Jennifer Tsoi; Ameya Champhekar; Giulia Parisi; Gardenia Cheung-Lau; Tom Wohlwender; Mykola Onyshchenko; Beata Berent-maoz; Catherine S. Grasso; Begoña Comin-Anduix, PhD; Siwen Hu-Lieskovan, MD, PhD; Antoni Ribas, MD, PhD; Antigen presenting cells; Biomarkers; Checkpoint blockade; NK/NK T cell; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); TLR; Tumor evasion; Tumor microenvironment
P558Secondary resistance to immunotherapy associated with β-catenin pathway activation or genetic loss of phosphatase and tensin homolog (PTEN) in metastatic melanomaJonathan A. Trujillo, MD, PhD; Jason J. Luke, MD, FACP; Stefani Spranger, PhD; Yuanyuan Zha, PhD; Karen Matijevich, RN, BSN; Thomas F. Gajewski, MD, PhD; Checkpoint blockade; Immune monitoring; Solid tumors; Tumor evasion; Tumor microenvironment; Vaccine
P559Co-expression of TNF receptor 1 and 2 on human BRAF V600E+ melanomas is required for TNF-induced resistance to MAPK pathway inhibitorsLazar Vujanovic, PhD; Cindy Sander, BS; Jian Shi, MD; John M. Kirkwood, MD; Lisa H. Butterfield, PhDChemotherapy; Cytokine; Immune contexture; Immune monitoring; Inflammation; Solid tumors; Tumor evasion; Tumor microenvironment
P560Resistance of CD44+ subpopulation to CTL though high production a protease inhibitor in colorectal cancerTomonori Yaguchi, MD, PhD; Tsubasa Miyauchi; Kenji Morii, MS; Yutaka Kawakami, MD PhDImmune suppression; Tumor microenvironment
P561A new mechanism of ADCC resistanceDavid Zahavi, MS, BS; Dalal Aldeghaither; Louis M. Weiner, MD; Joseph Murray, MD, PhD; Elana Fertig; Garrett Graham; Yong-Wei Zhang; Allison O'Connell, MD/PhD Candidate; Junfeng Ma; Sandra Jablonski, PhD; Antibody; NK/NK T cell; Targeted therapy; Tumor evasion
P562Delayed immune-related events after discontinuation of immunotherapy – DIRE syndrome?Marcus A. Couey, MD, DDS; Bryan R. Bell, MD, DDS, FACS; Ashish Patel, MD; Marka R. Crittenden, MD, PhD; Brendan D. Curti, MD; Rom Leidner, MD; Autoimmunity; Checkpoint blockade; Costimulation; Immune toxicity; Inflammation; Surgery
P563Characterizing immune-mediated adverse events of anti-PD-1 and anti-CTLA-4 monotherapies and combinations using a quantitative model based meta-analysisBoris Shulgin, PhD; Yuri Kosinsky, PhD; Andrey Omelchenko, PhD; Lulu Chu, PhD; Ganesh Mugundu, PhD; Garrett J. DeYulia, Jr., PhD; Rodrigo Pimentel, MD; Kirill Peskov, PhD; Gabriel Helmlinger, PhD; Checkpoint blockade; Clinical trial; Immune toxicity; Solid tumors
P564Interleukin-6 gene expression is highly upregulated in immune checkpoint mediated enterocolitisDaniel H. Johnson, MD; Cara Haymaker, PhD; Khalida Wani, PhD; Wai Chin Foo, MD; Salah Eddine Bentebibel; Yinghong Wang, MD, PhD; Jonathan L. Curry, MD; Adi Diab, MD; Jennifer A. Wargo, MD, MMSc; Alexandre Reuben; Elizabeth Burton; Autoimmunity; Checkpoint blockade; Cytokine; Gene expression; Immune toxicity; Inflammation; Tumor microenvironment
P565Characterization of lymphoid cells in synovial fluid from cancer patients with immunotherapy-associated arthritisSang Kim, MD, PhD; Roza Nurieva, PhD; Jean H. Tayar, MD; Huifang Lu, MD, PhD; Jennifer Wang, MD; Don Gibbons, MD; Guillermo Garcia-Manero, MD; Maria Suarez-Almazor, MD, PhD; Patrick Hwu, MD; Adi Diab, MD; Autoimmunity; Checkpoint blockade; Inflammation; T cell
P566Hypoalbuminemia as a predictor factor for immune related adverse events (irAEs) in advanced melanoma patients treated with immune checkpoint inhibitors (ICIs)Steven Blum, MD; Jeffrey Ishizuka, M.D.,D.Phil; Taha M. Qazi, MD; Rawad Elias, MD; Kruti B. Vora, BA; Alex B. Ruan; Anita Giobbie-Hurder, MS; Shilpa Grover, MD, MPH; Rizwan Haq, MD, PhD; Meredith Davis; Maria E. Gargano, PA-C; Elizabeth Buchbinder, MD; Patrick A. Ott, MD, PhD; F. Stephen Hodi, Jr., MD; E E. Rahma, MD; Checkpoint blockade; Immune toxicity
P567A meta-analysis of immune checkpoint inhibitors tumor type and dose-toxicity correlationE E. Rahma, MD; Joshua E. Reuss, MD; Ghazaleh GR. Shoja E Razavi, MD; Rawad Elias, MD; Anita Giobbie-Hurder, MS; Samir N. Khleif, MD; Checkpoint blockade; Immune toxicity
P568Pembrolizumab induced multiple immune related adverse events including myasthenia gravis, hepatitis and thyroiditis in a patient with thymomaKyunghoon Rhee, MD; Taeyeong ko, MD; Sangmin Chang, MD; Ji Hyun Rhee, MD; Lee Chun Park, MD; Young Kwang Chae, MD; Autoimmunity; Checkpoint blockade; Immune toxicity
P569Novel Pharmacobiotic approach to enhance the tamoxifen efficacy using bacterial extracellular vesicles as the immunotherapy in breast cancerJeongshin An, MD,Ph.D; Yeun-yeoul Yang; Won-Hee Lee; Jinho Yang; Jong-kyu Kim; HyunGoo Kim; Se Hyun Paek; Jun Woo Lee; Joohyun Woo; Jong Bin Kim; Hyungju Kwon; Woosung Lim; Nam Sun Paik; Yoon-Keun Kim; Byung-In Moon; Tumor microenvironment
P570Commensal bacteria Bifidobacterium stimulates an anti-tumor response via cross-reactivity.Catherine A. Bessell, BA; Ariel Y. Isser; Jonathan Havel, PhD; Sangyun Lee, PhD; Ruhong Zhou, PhD; Timothy A. Chan, MD, PhD; Jonathan P. Schneck, MD, PhD; David Bell, PhDAdoptive immunotherapy; Microbiome; Neoantigens; T cell
P571Targeted sequencing of 16s rRNA Gene to understand the diversity and composition of the gut microbiome Jianping Zheng; Karen L. Clyde, PhD; Fiona Hyland; Janice Au-Young, PhD; Rajesh K. Gottimukkala, MS; Asha Kamat, PhD; Bioinformatics; Biomarkers; Checkpoint blockade; Microbiome
P572Variation of the gut microbiome of complete responders to immune checkpoint blockade and healthy individuals – implications for clinical trial designBeth Helmink, MD PhD; Vancheswaran Gopalakrishnan, MPH, PhD; Abdul Wadud Khan, MD; Pierre-Olivier Gaudreau; Elizabeth Sirmans; Elizabeth Burton; Vanessa B. Jensen, DVM; Adrienne F. Duran, B.A.S.; Linsey Martin; Angela L. Harris; Miles Andrews, MD, PhD; Jennifer L. McQuade, MD; Alexandria P. Cogdill, MEng; Christine N. Spencer, PhD; Reetakshi Arora; Nadim Ajami, PhD; Joseph Petrosino, PhD; Jamal A. Mohamed; Sapna Patel, MD; Michael K. Wong, MD PhD FRCPC; Rodabe N. Amaria, MD; Jeffrey E. Gershenwald, MD; Patrick Hwu, MD; Wen-Jen Hwu, MD, PhD; Michael Davies, MD, PhD; Isabella C. Glitza, MD, PhD; Hussein A. Tawbi, MD, PhD; George Marnellos; Jaclyn Sceneay; Jennifer Wortman; Lata Jayaraman; David Cook; Theresa LaVallee; Robert Jenq, MD; Timothy Heffernan, PhD; Jennifer A. Wargo, MD, MMSc; Clinical trial; Microbiome; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P573Antibiotic use and clinical outcomes of PD-1 antagonists in advanced non-small cell lung cancersAmit Kulkarni, MD; Manish R. Patel, DO; Ying Wang, MD, Ph.D.; Todd Defor, MSCheckpoint blockade; Clinical study; Microbiome; Solid tumors
P574A rationally-designed consortium of human gut commensals induces CD8 T cells and modulates host anti-cancer immunityTakeshi Tanoue; Satoru Morita; Koji Atarashi; Wataru Suda; Damian Plichta; Seiko Narushima; Ashwin Skelly; Atsushi Shiota; Jason Norman; Vanni Bucci; Yutaka Kawakami, MD PhD; Masahira Hattori; Ramnik Xavier; Bernat Olle; Bruce L. Roberts, PhD; Kenya Honda, MD, PhDCheckpoint blockade; Microbiome; T cell; Tumor infiltrating lymphocytes (TILs)
P575Classification of the human gut microbiome using a validated 16S rRNA next generation sequencing methodJanet Doolittle-Hall; Melissa Howard; Jennifer K. Sims; Scott Yourstone; Jason Powers; Patrick Hurban, PhD; Victor J. Weigman, Jr.Microbiome
P576Evaluating the importance of inhibiting HDAC6 in metastatic breast cancer to enhance the efficacy of immunotherapyDebarati Banik, PhD; Erica Palmer, BS; Melissa Beaty, MS; Satish R. Noonepalle, PhD; Maria MG. Hernendez, BS; Prathima Vembu, MS; Alejandro Villagra, PhDCheckpoint blockade; Chemokine; Cytokine; Monocyte/Macrophage; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P577Activation of GSK3-beta in the melanoma tumor microenvironment renders dendritic cells refractory to immune suppression and induces T cell activation and oncolysisMarta Lopez Gonzalez, Msc.; Rieneke van de Ven, PhD; Anita Stam; Wen Dong; Victor W. van Beusechem; Tanja D. de Gruijl, PhDAntigen presenting cells; Dendritic cell; Immune contexture; Immune suppression; Monocyte/Macrophage; Myeloid cells; Solid tumors; T cell; Tumor evasion; Tumor microenvironment
P578Application of multiplexed immunofluorescence and multispectral imaging to investigate TGFβ pathway activation of immune cell populations in human lung cancerCarmen Ballesteros Merino, PhD; Shawn M. Jensen, PhD; Bernard A. Fox, PhD; Sebastian Marwitz; Sebastian Marwitz; Biomarkers; Carcinogenesis; Immune contexture; Inflammation; NK/NK T cell; Solid tumors; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P579The leukocyte chemoattractant chemerin modulates PTEN and PD-L1 expression and activity via CMKLR1 in human tumorsRussell Pachynski, MD; Keith R. Rennier, PhD; Gurpal Virdi, BS; Woo Jae Shin, BA; Antibody; Biomarkers; Checkpoint blockade; Chemokine; Gene expression; Solid tumors; T cell; Tumor evasion; Tumor microenvironment
P580Genomic portraits of immune escape mechanism in cold tumoursVenkateswar R. Addala, PhD - Research Student; Futoshi Kawamata; Stephen H. Kazakoff, PhD; Pamela Mukhopadhyay; Catherine Bond; Katia Nones; Felicity Newell; Jennifer Borowsky; Scott Wood; Conrad Leonard; Qinying Xu; Matthew E Burge; Akinobu Taketomi; Toshiya Kamiyama; Barbara Leggett, MD FRACP; John Pearson; Vicki Whitehall; Ann-Marie Patch; Nic Waddell; Antigen presenting cells; Bioinformatics; Immune suppression; Monocyte/Macrophage; Neoantigens; T cell; Tumor evasion; Tumor microenvironment
P581Whole-genome sequencing and multi-omic analysis of immuno-oncology biomarkers using formalin-fixed, paraffin-embedded samplesShannon T. Bailey, PhD; Wanfeng Yu, PhD; Jim Lund, PhD; Richard T. Williams; Jeffrey R. GulcherBioinformatics; Biomarkers; Gene expression; Solid tumors; Systems biology
P582Implications of ARID1A deficiency on tumor microenvironment and immune landscape in non-small cell lung cancer (NSCLC)Young Kwang Chae, MD; Pedro Viveiros, MD; Bhoomika Sukhadia, MD; Lee Chun Park, MD; Muhammad Mubbashir Sheikh, MBBS / MD; Jeffrey Chuang; Biomarkers; Checkpoint blockade; Gene expression; Neoantigens; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P583Single cell transcriptional immune landscape of human papilloma virus positive and negative head and neck squamous cell carcinomaAnthony R. Cillo, PhD; Tullia C. Bruno, PhD; Tracy Tabib; Zengbiao Qi; Ting Wang; Umamaheswar Duvvuri; Ryan Soose, MD; Wei Chen; Robert Lafyatis; Robert Ferris; Dario A. Vignali, PhDBioinformatics; Gene expression; Solid tumors; Systems biology; Tumor microenvironment
P584High DNA repair activity is associated with immune exclusion in pediatric kidney cancersEmily Higgs, BA; Ami V. Desai, MD; Riyue Bao, PhD; Thomas F. Gajewski, MD, PhD; Bioinformatics; Gene expression; Immune suppression; Pediatric tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P585Structured literature review and meta-analyses of the prevalence of microsatellite instability high (MSI-H) and deficient mismatch repair (dMMR) in endometrial and ovarian cancersMaria Lorenzi; Mayur Amonkar, PhD; Jacky Zhang; Shivani Mehta; Kai-Li LiawEpidemiology; Solid tumors; Targeted therapy
P586Frameshift indel selectively correlates with immunotherapy outcome for advanced NSCLCWungki Park, MD; Lee Chun Park, MD; Vaia Florou, MD; Diana Saravia, MD; Sangmin Chang, MD; Si Wang, M.D.; Lauren Chiec; Ashkon Rahbari; Pedro Viveiros, MD; Bhoomika Sukhadia, MD; Muhammad Mubbashir Sheikh, MBBS / MD; Nisha Mohindra; Victoria Villaflor, MD; Gilberto Lopes, MD, MBA; Young Kwang Chae, MD;Antigen presenting cells; Bioinformatics; Biomarkers; Checkpoint blockade; Clinical study; Neoantigens; Solid tumors
P587Conditional activation of immune-related pathways and prognostic significance: a pan cancer analysisJessica Roelands; Michele Ceccarelli; Darawan Rinchai, PhD; Sara Pai, MD, PhD; Francesco M. Marincola, MD; Lance D. Miller, MS, PhD; Peter Kuppen; Davide Bedognetti, MD, PhD; Wouter R. Hendrickx, PhDBioinformatics; Gene expression; Immune contexture; Immune suppression; Immune tolerance; Neoantigens; Systems biology; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P588Deep learning of the immune synapseJohn-William Sidhom, MSE; Drew M. Pardoll, MD, PhD; Alexander Baras; Antigen presenting cells; Biomarkers; Immune monitoring; Neoantigens; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P589Endogenous oncogene mutation-specific T cell responses in patients with clinical response to PD-1 blockadeKellie N. Smith, PhD; Nicolas J. Llosa, MD; Valsamo Anagnostou, MD PhD; Hok Yee N. Chan, MS; Jiajia Zhang, MD, MPH; Haidan N. Guo, BS, BA; Tricia Cottrell, MD, PhD; Jarushka Naidoo, MD; Kristen Marrone, MD; Janis M. Taube, MD, MSC; Victor E. Velculescu, MD, PhD; Julie R. Brahmer, MD; Patrick Forde, MD; Drew M. Pardoll, MD, PhD; Franck Housseau, PhDNeoantigens; Solid tumors; T cell; Tumor antigens
P590Evaluation of whole exome sequencing for quantitative immune cell type deconvolution in tumor for clinical application in oncologyAlex So, PhD; Joyee Yao, BA; Aaron Wise, PhD; Kevin Wu; Kristina Kruglyak, PhD; Sven Biike; Traci Pawlowski, PhD; Shile Zhang, PhDB cell; Biomarkers; Checkpoint blockade; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P591Somatic alterations in PD-L1 predict response to platinum-based chemotherapy in patients with advanced prostate cancerPanagiotis J. Vlachostergios, MD, PhD; Aileen Lee; Charlene Thomas; Priyanka Patel; Amy L. Hackett; Naureen Rashid; Ana M. Molina, MD; David M. Nanus, MD; Himisha Beltran, MD; Scott T. Tagawa, MD, MS; Panagiotis J. Vlachostergios, MD, PhDBioinformatics; Biomarkers; Chemotherapy; Clinical study; Gene expression; Solid tumors
P592Clonality of tumor infiltrating and peri-tumoral lymphocytes in colorectal cancers with high-microsatellite instabilityPamela M. Ward, PhD; Mihaela Campan, PhD; Katherine A. Scribner, DO; Ashley S. Hagiya, MD; Cristina Costales, MD; Michael Bask, BS; Tiffany I. Long, BS; Afsaneh Barzi, MD; Jonas Pettersson, PhD; Louis Dubeau, MD PhDImmune contexture; Immunoscore; Solid tumors; T cell; Targeted therapy; Tumor microenvironment; Tumor stroma
P593Robust TMB values calculated from tumor-only material show correlation and precision with paired resultsVictor J. Weigman, Jr.; Natalie Mola, MSBioinformatics; Clinical trial; Tumor antigens; Tumor evasion
P594Dynamic analysis and visualization of the interactions between tumor and the immune cell infiltration by integrating TCGA genomic- and transcriptional- dataMingchao Xie, PhD; Bolan Linghu; Pei Zhang, PhD; Zhongwu Lai, PhD; Jonathan Dry; Benjamin SiddersBioinformatics; Biomarkers; Gene expression; Immune contexture; Solid tumors; Systems biology; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P595Smoking and KRAS mutation status in lung adenocarcinomas are associated with distinct favorable immune cell contexture in the tumor microenvironmentYuanquan Yang, MD, PhD; Qiang Hu, MD, PhD; Song Liu; Maya Khalil, MD; Grace K. Dy; Bioinformatics; Immune contexture; Tumor microenvironment
P596Immune gene expression characterization of genomic subsets of metastatic non-squamous non-small cell lung cancerEdwin Yau, MD, PhD; Sarabjot Pabla, MSc, PhD, BS; Sean T. Glenn, PhD; Antonios Papanicolau-Sengos, MD; Jason Zhu, MD; Matthew K. Labriola, MD; Tian Zhang, MD; Jeffrey M. Clarke, MD; Carl D. Morrison, MD, DVM; Grace K. Dy; Edwin Yau, MD, PhD; Edwin Yau, MD, PhD; Biomarkers; Checkpoint blockade; Gene expression; Immune contexture; Targeted therapy
P597Reovirus infection of prostate cancer induces upregulation of the negative regulators PD-L1 and BTLANicola E. Annels, PhD; Guy R. Simpson; Hardev S. Pandha, PhD, FRCP, FRACP, FR; Mehreen Arif; Kevin Harrington, MD; Alan Melcher; Richard Vile, PhDCheckpoint blockade; Dendritic cell; NK/NK T cell; Solid tumors; T cell; Targeted therapy; Tumor microenvironment
P598Discovery and preclinical development of E7766, a novel STING agonist for cancer immunotherapy with a superior profile over a leading reference compoundXingfeng Bao, Ph.D; Kuan-Chun Huang, Ph.D.; Atsushi Endo; Dinesh Chandra, PhD; Jiayi Wu; Dae-Shik Kim; Diana Albu; Karen Tendyke; Kara Loiacono; Thomas A. Noland, Jr, PhD; Christy Ingersoll; David Verbel, MPH; Rongrong Jiang; Donna Kolber-Simonds; Chi Zhang; Muzaffar Akram, MSc., MA; Minghong Hao; HyeongWook Choi; Vaishali Dixit; Janna Hutz, PhD; John Wang; Frank FangAntigen presenting cells; Genetic polymorphism; T cell; Tumor microenvironment
P599OncoVEXmGM-CSF in combination with checkpoint inhibition leads to tumor-specific systemic immunity and increased tumor antigen response in a murine syngeneic melanoma modelKeegan Cooke, BS; Juan Estrada; Petia Mitchell; Jinghui Zhan; Jing Qing; Jude Canon; Pedro J. BeltranCheckpoint blockade; Neoantigens; T cell; Tumor antigens
P600IL12/IL15 and PD-L1 blocker co-expressing oncolytic herpes virus VG161 significantly alters tumor microenvironment and eliminates prostate tumors in animal modelsZahid Delwar, PhD; Neetu Saxena, PhD; Erica Lee, PhD; Morgan E. Roberts, PhD; Luke Bu, M.Sc.; Guoyu Liu, MD; Yanal Murad, PhD; Jun Ding, PhD; Dmitry Chouljenko, PhD; Igor Moskalev; Syam Somasekharan, PhD; Ronghua Zhao, MD; Paul Rennie, PhD; William Jia, PhDAdoptive immunotherapy; Checkpoint blockade; Cytokine; Gene expression; Immune monitoring; Regulatory T cell (Treg cell); Stem cell/cancer-initiating cell; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P601STING signaling can enhance melanoma antigenicityRana Falahat, PhD; Adam W. Mailloux, PhD; Patricio Perez-Villarroel; Genyuan Zhu, PhD; Shari A. Pilon-Thomas, PhD; Glen N. Barber, PhD; James J. Mulé, PhD; Adoptive immunotherapy; Cytokine; Immune adjuvant; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor evasion; Tumor microenvironment
P602Generation and characterization of a CTLA-4 antibody with improved FcgammaR-dependent Treg deletion for tumor microenvironment-targeted oncolytic virotherapy of cancerBjorn Frendeus, PhD; Monika Semmrich, PHD; Monika Semmrich, PHD; Jean-Baptiste jb. Marchand, pHD; Petra Holmkvist; Linda Mårtensson; Ulla-Carin Tornberg; Ingrid Teige; Andres McAllister; Eric Quemeneur, PharmD, PhD; Bjorn Frendeus, PhD; Nathalie SilvestreCheckpoint blockade; Coinhibition; Immune suppression; Regulatory T cell (Treg cell); Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Vaccine
P603Novel treatment strategy for peritoneal carcinomatosis: adoptive cell transfer of tumor-specific lymphocytes after dual therapy with oncolytic virus and PD-1 blockadeEsther Giehl, MD; David Bartlett, MD; Zong Sheng Guo, PhD; Mathilde Feist, MD; Adoptive immunotherapy; Checkpoint blockade; T cell
P604DNA-based delivery of immunomodulatory antibodies is effective both in muscle and tumor despite distinct pharmacokineticsLiesl Jacobs, MPharm; Elien De Smidt; Nick Geukens; Paul Declerck; Kevin Hollevoet, PhDAntibody; Checkpoint blockade; Targeted therapy
P605Localized treatment with oncolytic adenovirus Delta-24-RGDOX elicits efficacious abscopal immunity against disseminated melanomasHong Jiang, PhD; Dong Ho Shin; Caroline Carrillo, BS; Verlene Henry, BS; Teresa Nguyen, BS; Yisel A. Rivera-Molina, PhD; Frederick Lang, MD; Candelaria Gomez-Manzano, MD; Juan FueyoCostimulation; Gene expression; Immune contexture; Metabolism; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Vaccine
P606IFN gamma-independent upregulation of PD-L1 in oHSV-1 infected tumour cellsErica Lee, PhD; Jun Ding, PhD; Sheng Yu; Yanal Murad, PhD; Dmitry Chouljenko, PhD; Guoyu Liu, MSc, MD; Zahid Delwar, PhD; Luke Bu, M.Sc.; Will Liu, PhD; Ronghua Zhao, MD; William Jia, PhDCheckpoint blockade; Targeted therapy; Tumor infiltrating lymphocytes (TILs)
P607The TLR4 agonist G100 enhances the efficacy of adoptive T-cell therapyJardin Leleux, PhD; Tina C. Albershardt, PhD; Peter Berglund, PhD; Jan H. Ter Meulen, MD, PhDAdoptive immunotherapy; Immune suppression; T cell; Tumor infiltrating lymphocytes (TILs); TLR; Tumor microenvironment
P608ProTriTAC: a protease-activatable T cell engager platform that links half-life extension to functional masking and expands therapeutic window to enable targeting of broadly expressed tumor antigensS. Jack Lin, PhD; Maria Rosalyn Dayao; Kendrick J. Kim; Sony S. Rocha; Kathryn Kwant, PhD; Timothy Yu; Thomas Evans; Stephen Yu; Michael Cremin; Wade Aaron, BS; Maria Gamez-Guerrero; Evan Callihan; Golzar Hemmati; Kevin J. Wright, PhD; Yinghua Xiao, Master Degree; Manasi Barath; Che-Leung Law, PhD; Bryan Lemon, PhD; Richard Austin, PhD; Holger Wesche, PhDAntibody; Immune toxicity; Solid tumors; T cell; Targeted therapy; Tumor antigens; Tumor microenvironment; Tumor stroma
P609First in man study of TK positive oncolytic vaccinia virus delivered by adipose stromal vascular fraction cellsBoris Minev, MD; Elliot Lander, MD; John F. Feller, MD; Mark Berman, MD; Stuart May, MD; Bernadette Greenwood; Ivelina Minev, MSc; Duong Nguyen, PhD; Antonio F. Santidrian; Dobrin Draganov, PhD; Mehmet O. Kilinc, PhD; Santosh Kesari, MD, PhD; Edward McClay, MD; Gabriel Carabulea, MD; Aladar Szalay, PhD; Clinical trial; Cytokine; Immune monitoring; Leukemia/Lymphoma; MDSC; NK/NK T cell; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor microenvironment
P610Transcriptome analysis of CT26 tumors treated with HSV-1 oncolytic virus expressing multiple immune factorsYanal Murad, PhD; Jun Ding, PhD; Erica Lee, PhD; Dmitry Chouljenko, PhD; Luke Bu, M.Sc.; Guoyu Liu, MSc, MD; Zahid Delwar, PhD; Will Liu, PhD; Ronghua Zhao, MD; William Jia, PhDTumor microenvironment
P611Single shot intravenous oncolytic vesicular stomatitis virus therapy promotes intratumoral CD8+ T-cell infiltration and enhances therapeutic response to checkpoint blockadeShruthi Naik, PhD; Kah Whye Peng, PhD; Stephen J. Russell, MD, PhDBiomarkers; Checkpoint blockade; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P612Overcoming oncolytic poliovirus-mediated adaptive immune resistance by combining with anti-PD1/-PDL1 therapy in cancer. Smita Nair, PhD; Eda Holl, PhD, RAC; Michael Brown, PhD; Victoria Frazier; David Boczkowski, BS, MSc; Vidyalakshmi Chandramohan, PhD; Darell D. Bigner, MD, PhD; Shelley Hwang; Matthias Gromeier, MD; Checkpoint blockade; Immune adjuvant; Inflammation; Solid tumors; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P613Non-oncolytic viral infection reduces tumor burden and promotes anti-tumor immunity in synergy with checkpoint blockadeJenna Newman; Charles B. Chesson, PhD; Andrew ZlozaCheckpoint blockade; Inflammation; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P614Nano-Pulse Stimulation™ of murine melanoma and mammary carcinoma is a physical modality that eliminates the treated tumor by regulated cell death and induces innate and adaptive immune responsesRichard Nuccitelli, MS, PhD; Amanda McDaniel, BA; Bruce Freimark, PhD; Joel Benjamin, PhD; Jessica Sood, BS; Darrin Uecker, MS; Biomarkers; Gene expression; Immune monitoring; Tumor infiltrating lymphocytes (TILs); Vaccine
P615Antibody-armed oncolytic Vaccinia virus to block immunosuppressive pathways in the tumor microenvironmentEric Quemeneur, PharmD, PhD; Jean-Baptiste jb. Marchand, pHDImmune contexture; Immune suppression; Regulatory T cell (Treg cell); Tumor microenvironment
P616Fueling antitumor immunity using oncolytic viruses encoding metabolic modulatorsDayana B. Rivadeneira, PhD; Kristin DePeaux; Nicole E. Scharping, BS; Padmavathi Sampath, PhD; Saumendra Sarkar, PhD; Stephen H. Thorne, PhD; Greg M. Delgoffe, PhDMetabolism; T cell; Tumor infiltrating lymphocytes (TILs)
P617A cell-based platform to protect and enhance oncolytic virus therapiesAntonio F. Santidrian; Dobrin Draganov, PhD; Duong Nguyen, PhD; Okyay Kilinc; Ivelina Minev, MSc; Boris Minev, MD; Aladar Szalay, PhD; Immune suppression; NK/NK T cell; Solid tumors; T cell; Tumor evasion; Vaccine
P618Selective delivery of exosome-mediated STING agonist to antigen presenting cells results in significantly improved potency and reduced toxicitySu Chul Jang, PhD; Raymond J. Moniz; Christine Sia; Joyoti Dey, Ph.D., M.P.H; Rane Harrison; NIKKI ROSS, PhD; Ke Xu; Kevin Dooley; Nuruddeen Lewis; Christine McCoy; Agata Villiger-Oberbek; Scott Estes; Jorge Sanchez-Salazar; Kyriakos Economides; Sriram SathyanarayananAntigen presenting cells; Cytokine; Dendritic cell; Gene expression; Immune toxicity; Monocyte/Macrophage; Myeloid cells; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); TLR
P619Image-guided intratumoral delivery of immunotherapeutics: interventional radiology perspectiveRahul A. Sheth, MD; Ravi Murthy, MD; Funda Meric-Bernstam, MD; David Hong, MD; Sapna Patel, MD; Alda Tam; Clinical study; Immune adjuvant; Solid tumors; Targeted therapy
P620Enhanced efficacy and combinability of low dose toca 511 and 5-FC with metronomic chemotherapy in preclinical models Sophie Viaud; Derek Ostertag; Chemotherapy; Targeted therapy
P621Local immunotherapy with a mixture of mRNAs encoding pro-inflammatory cytokines promotes potent anti-tumor immunity and tumor eradication across multiple preclinical tumor models.Timothy Wagenaar; Christian Hotz; Friederike Gieseke; Hui Cao; Jan Diekmann; Mustafa Diken; Christian Grunwitz; Andrew Hebert; Karl Hsu; Marie Bernardo; Katalin Kariko, PhD; Sebastian Kreiter; Andreas N. Kuhn; Mikhail Levit; Natalia Malkova; Serena Masciari, MD, MSc; Jack Pollard; Hui Qu; Abderaouf Selmi; Julia Schlereth; Fangxian Sun; Bodo Tillmann; Tatiana Tolstykh; Lena Wicke; Sonja Witzel; Qunyan Yu; Yu-An Zhang; Gang Zheng; Gary Nabel; Joanne Lager; Ugur Sahin, MD; Dmitri WiederschainCheckpoint blockade; Cytokine; Inflammation; Tumor microenvironment; Vaccine
P622Phase 1/2 evaluation of intratumoral INT230-6 for the treatment of solid tumorsAnthony J. Olszanski, MD, RPh; Nilofer Azad, MD; Lewis H. Bender, M.S., M.A, M.B.A.; Ian B. Walters, MD; Diana Hanna, MD; Jacob Thomas, MD; Lillian Siu, MD; Anthony El-Khoueiry, MDAntigen presenting cells; Chemotherapy; Clinical trial; Dendritic cell; Neoantigens; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P623The oncolytic peptide LTX-315 promotes natural killer cell recruitment and reduces lung metastatic burden in combination with local radiation therapyErik Wennerberg, PhD; Takahiro Yamazaki, PhD; Baldur Sveinbjornsson, PhD; Oystein Rekdal, PhD; Lorenzo Galluzzi, PhD; Sandra Demaria, MD; Antigen presenting cells; Dendritic cell; NK/NK T cell; Radiotherapy; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P624Development of a STING agonist-producing synthetic Biotic™ medicine to activate innate and adaptive immunity and drive antitumor immune responsesKip A. West, PhD; DANIEL LEVENTHAL, PHD; Ning W. Li, PhD; Christopher Plescia, MS; Starsha Kolodziej, BS; Rudy Christmas, BS; Carey Gallant, BS; Michael James, BS; Adam Fisher, PhD; Anna Sokolovska, PhD; Paul W. Miller, PhD; Jose M. Lora, PhD; Kip A. West, PhD; Antigen presenting cells; T cell; Tumor microenvironment
P625Outcomes with first-line PD-1/PD-L1 inhibition in advanced urothelial cancer (UC): A single institution experienceArjun V. Balar, MD; Miles Hsu, BS; Yuhe Xia; Andrea Troxel, PhD; Daniela Delbeau, RN; Kaitlyn Francese, RN; Dayna Leis, RN; Deneuve Shepherd;Checkpoint blockade; Clinical study
P626Overcoming target-driven fratricide for CAR-T cell therapyEytan Breman, MSc; Benjamin Demoulin; Sophie AGAUGUE, PhD; Sebastien Mauen, PhD; Alexandre E. Michaux, PhD; Lorraine P. Springuel; Fanny Huberty; Céline Jacques-Hespel; Celine Marchand, Laboratory Technician; Jérôme Marijsse; Peter DeWaele; David E. Gilham, PhD; Valérie Steenwinckel, PhDCAR T cells; Cytokine; Solid tumors; T cell; Targeted therapy
P627From staining to analysis: fully automated workflow for multiplexed immuno-profiling in FFPE tumor samples using UltiMapper™ reagent kitsAmanda J. Bares, PhD; Michael Murphy; Heike Boisvert, PhD; Katir K. Patel, PhD; Bonnie Phillips, PhD; Sean R. Downing, PhD; Mael Manesse, PhDAntibody; Biomarkers; Immune contexture; Tumor microenvironment
P628High dimensional immune cell profiling with data-independent acquisition mass spectrometryJakob Vowinckel, PhD; Tobias Treiber; Nicholas Dupuis, PhD; Kristina Beeler; Claudia EscherBioinformatics; Biomarkers; Monocyte/Macrophage; NK/NK T cell; Proteomics; T cell; T cell lineages
P629Addressing immunotherapy educational needs: esults from an educational program on immunotherapy for cancer patients and caregiversMaria B. Gonzalo; Liliana Zigo, BA; Claire Saxton, MBA; Heather Hollen, BS, MS; Julie S. Olson, PhD; Kevin Stein, PhD, FAPOS; Adoptive immunotherapy; Immune toxicity
P630Patient-reported toxicities in lung cancer patients receiving immune checkpoint blockadeHeather Jim, PhD; Sandra S. Shaw, BS, MBA; Sarah Eisel, PhD; Aasha I. Hoogland, PhD; David LeDuc, CFRE; Adam P. Dicker, MD, PhD; Immune toxicity; Solid tumors
P631A novel CD137/PD-L1 bispecific antibody modulates the tumour microenvironment by activating CD8⁺ T cells and results in tumour growth inhibitionMatthew A. Lakins, PhD; Jose Munoz-Olaya; Daniel Jones; Raffaella Giambalvo; Clinton M. Hall; Anne Knudsen; Neus Masque Soler, Dr; Sarka Pechouckova; Emma Goodman, BSc; Cristian Gradinaru; Alexander Koers, PhD; Sylwia Marshall; Mateusz Wydro, PhD; Francisca Wollerton; Sarah Batey; Dan Gliddon; Jacqueline F. Doody, PhD; Michael Davies; Michelle Morrow, PhD; Mihriban Tuna, PhD; Neil Brewis, PhDAntibody; Checkpoint blockade; Costimulation; Solid tumors; T cell; Targeted therapy; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P632A multi-omics approach to understanding the tumor microenvironmentDeepali Malhotra, PhD; Gordon Moody; Michael Surace, PhD; Jaime Rodriguez-Canales, MD; Ronald Herbst, PhD; John B. Mumm, PhD;Antigen presenting cells; Dendritic cell; Immune contexture; Myeloid cells; MDSC; NK/NK T cell; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P633Generation of a modular landing pad cell line for T cell receptor exchange and screeningETHAN PATTERSON; Stacey Ward, Ph.D.; jason GustinCAR T cells; Gene expression; T cell
P634Precision genome editing in macrophage and CD8+ human primary T cells for immuno-therapeutics applicationsLaura Daley; ETHAN PATTERSON; CAR T cells; Gene expression; Monocyte/Macrophage; T cell; T cell lineages; Targeted therapy
P635Effectiveness and tolerance of immune checkpoint blockade in a real-world lung cancer patient populationDaniel F. Pease, MD; Michael Shyne; Shilvi Joshi; Allison Lee; Manish R. Patel, DOAutoimmunity; Checkpoint blockade; Immune toxicity; Solid tumors
P636Evaluating the occurrence of early tumor progression (ETP) in patients with gastric cancer treated with nivolumab versus placeboYan Feng; Paul Nghiem, MD, PhD; Paul Nghiem, MD, PhD; Ricardo Zwirtes, MD; Dan Reshef; Greg Plautz; Narikazu Boku; Li-Tzong Chen; Yoon-Koo Kang; Akintunde Bello, PhD; Amit Roy; Jennifer Sheng; Checkpoint blockade; Clinical study; Solid tumors
P637Fibroblast activation protein (FAP)-selective delivery of CD40 agonistic DARPin® molecule for tumor-restricted immune activationNicolo Rigamonti, PhD; Anja Schlegel; Sophie Barsin, MS; Jonas Schwestermann; Jennifer Krieg; Susanne Mangold; Maria Paladino; Valérie Calabro, PhD; Victor Levitsky, MD PhD; Simon E. Plyte, PhD; Michael T. Stumpp, PhD; Clara Metz, PhDAntigen presenting cells; B cell; Costimulation; Dendritic cell; Monocyte/Macrophage; Myeloid cells; Solid tumors; Targeted therapy; Tumor microenvironment; Tumor stroma
P638Comparison of immunoprofiling from whole tumor versus pathologist-selected regions of interest in tissues: a study using multiplex immunofluorescence and multispectral analysis on lung cancerMichael Surace, PhD; Matthew Gates; Clifford C. Hoyt, MS; Jennifer Cann, PhD; Jaime Rodriguez-Canales, MD; Immunoscore; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P639Tumor-associated B cells promote melanoma cell dedifferentiation and invasivenessAnastasia Samarkina, MSc; Rajasekharan Somasundaram, PhD; Meenhard Herlyn, DVM PhD; Angiogenesis; B cell; Inflammation; Stem cell/cancer-initiating cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P640hMENA is a key regulator of tumor cell-cancer associated fibroblasts dialogue via Gas6/Axl paracrine axissheila spada, PhD; Roberta Melchionna; Francesca Di Modugno, PhD; Mariangela Panetta; Anna Di Carlo; - Anna Maria Mileo; Isabella Sperduti; Barbara Antoniani; Rita Teresa Lawlor; Lorenzo Piemonti; Maria Grazia Diodoro; Daniel D'Andrea, Ph.D.; Paolo Visca; Michele Milella; Gian Luca Grazi; Francesco Facciolo; Emily Chen; Aldo Scarpa; Paola Nistico', MD; Tumor microenvironment; Tumor stroma
P641Development of automated protocols for OPAL, SMIFT and ESIFT 4-color lymphocyte kitsJoe A.Vargas; Julio S. Masabanda, PhD; David A. Tacha, PhDAntibody; Antigen presenting cells; B cell; Biomarkers; Immune monitoring; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P643Oncology Nursing Society’s patient immunotherapy wallet cards improve communication and immune-related adverse event managementKathleen Wiley, RN, MSN, AOCNS; Michele Galioto, RN, MSN; Kathleen Wiley, RN, MSN, AOCNS; Nicole Lininger; PhD ANP-BC, PhD APRN; CAR T cells; Checkpoint blockade; Immune toxicity
P644Checkpoint inhibitor therapy in solid organ and allogeneic stem cell transplantation: data mining of The Truven Health Marketscan Research DatabaseNoha Abdel-Wahab, MD, PhD; Ala Abudayyeh; Xiudong Lei; Gheath Alatrash, DO, PhD; Hui Zhao; Sharon H. Giordano; Houssein Safa, MD; Daniel H. Johnson, MD; Van A. Trinh, DPharm; Maen Abdelrahim, MD, PhD; Ahmed O. Gaber, MD; Maria Suarez-Almazor, MD, PhD; Adi Diab, MD; Checkpoint blockade; Epidemiology; Immune toxicity
P645Clinical characteristics and outcomes of immune checkpoint inhibitor-induced pancreatic injuryHamzah Abu-Sbeih, M.D.; Tenglong Tang, MD; Yinghong Wang, MD, PhD; Checkpoint blockade; Clinical study; Immune suppression; Immune toxicity
P646Discovery and characterization of therapeutic human monoclonal antibodies against 17 immuno-oncology targets using microfluidics and molecular genomicsAdam Adler, PhD; Rena Mizrahi, PhD; Carter R. Keller, MBA; David Johnson, PhDAntibody; B cell; Checkpoint blockade; Coinhibition; Costimulation
P647DuoBody-PD-L1x4-1BB combines checkpoint blockade and 4-1BB co-stimulation to promote antigen-specific T-cell stimulation and proliferationIsil Altintas, PhD; Alexander Muik, PhD; Isil Altintas, PhD; Friederike Gieseke; Theodora Salcedo; Saskia Burm; Mustafa Diken, PhD; Christian Grunwitz; Sebastian Kreiter, MD; David Satijn, PhD; Danita Schuurhuis; Ozlem Tureci; Esther Breij, PhD; Ugur Sahin, MDAntibody; Coinhibition; Costimulation; Cytokine; Tumor infiltrating lymphocytes (TILs)
P648Different exhausted t-cell subsets exhibit different degrees of dysfunction in follicular lymphomaTheodora Anagnostou, MD; Zhi Zhang Yang, MD; Hyo Jin Kim, PhD; Jose C. Villasboas, MD; Tammy L. . Price-Troska; Shahrzad Jalali, PhD; Anne J. Novak, PhD; Stephen M. Ansell, MD, PhD; Checkpoint blockade; T cell; Tumor microenvironment
P649Resistance to PD1 blockade in the absence of metalloprotease-mediated LAG3 sheddingLawrence P. Andrews, PhD; Ashwin Somasundaram, MD; Jessica Moskovitz, MD; Andrea L. Szymczak; Chang Liu, PhD; Anthony R. Cillo, PhD; Brenda F. Kurland; Huang Lin; Kelly D. Moynihan, PhD; Darrell J. Irvine, PhD; Robert L. Ferris, MD, PhD; Tullia C. Bruno, PhD; Creg Workman, PhD; Dario A. Vignali, PhDCheckpoint blockade; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P650Selective CD47 immune checkpoint targeting on tumor cells modulates the tumor microenvironment to enhance macrophage tumoricidal functionVanessa Buatois, PhD; Xavier Chauchet, PhD; Laura Cons; Laurence Chatel; Limin Shang, PhD; Marie H. Kosco-Vilbois; Krzysztof Masternak, PhD; Nicolas Fischer, PhD; Walter G. Ferlin, PhDAntibody; Checkpoint blockade; Leukemia/Lymphoma; Monocyte/Macrophage; Myeloid cells; Solid tumors; Tumor microenvironment
P651First-in-human study of FAZ053, an anti-PD-L1 mAb, alone and in combination with spartalizumab, an anti-PD-1 mAb, in patients with advanced malignanciesFilip Janku, MD, PhD; David SP. Tan; Juan Martin-Liberal; Shunji Takahashi; Ravit Geva, MD; Ayca Gucalp; Xueying Chen; Kulandayan Subramanian; Jennifer Mataraza; Jennifer Wheler; Philippe Bedard, MDAntibody; Checkpoint blockade; Clinical trial; Solid tumors
P652Cytokine-mediated induction of PD-L1 expression on tumor and immune cellsShuming Chen, PhD; George A. Crabill, MS; Theresa S. Pritchard, MS; Tracee L. McMiller, MS; Drew M. Pardoll, MD, PhD; Fan Pan; Suzanne L. Topalian, MDCheckpoint blockade; Cytokine; Immune suppression; Monocyte/Macrophage; Tumor evasion; Tumor microenvironment
P653Discovery of a novel TIGIT therapeutic antibody with strong efficacy in tumor xenografts as monotherapyFeifei Cui, PhD; Lei Fang; Zhengyi Wang; Taylor B. Guo; Jingwu ZangAntibody; Checkpoint blockade; Immune suppression; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs)
P654T-cell profiling in cancer tissue with multiplexed IHC using UltiMapper™ I/O assaysSean R. Downing, PhD; Alexis Wong, PhD; Amy Zhang, M.S.; Max Rubinstein; Laura Sciarra, PhD; Chakib Boussahmain, Mr., B.S; Bonnie Phillips, PhD; Katir K. Patel, PhD; Stephanie Hennek, PhDAntibody; Biomarkers; Immune contexture; Immune monitoring; Immune suppression; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment; Tumor stroma
P656ATOR-1017, a tumor directed Fcγ-receptor cross linking dependent 4-1BB agonistic antibody Karin Enell Smith, PhD; Anna Rosén; Karin Barchan; Ida Aberg; Doreen Werchau, BS; Mia Thagesson; Anna Dahlman; Niina Veitonmaki; Christina Furebring, PhD; Peter Ellmark, PhDAntibody; Costimulation; Leukemia/Lymphoma; NK/NK T cell; Solid tumors; T cell
P657Agonist redirected checkpoint platform (ARC), engineering bi-functional fusion proteins (PD1-Fc-OX40L), for cancer immunotherapyGeorge J. Fromm, Jr., PhD; Suresh de Silva, Ph.D.; Taylor H. Schreiber, MD, PhD; Checkpoint blockade; Costimulation; Cytokine; Immune suppression; T cell; Tumor antigens
P658Agonist redirected checkpoint platform (ARC), engineering bi-functional fusion proteins (TIM3-Fc-OX40L and TIM3-Fc-CD40L), for cancer immunotherapyGeorge J. Fromm, Jr., PhD; Suresh de Silva, Ph.D.; Taylor H. Schreiber, MD, PhD; Antigen presenting cells; Checkpoint blockade; Costimulation; Cytokine; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens
P659AGEN2373 is a conditionally-active agonist antibody targeting the co-stimulatory receptor CD137 for the treatment of human malignanciesClaire H. Galand, PhD; David Savitsky, PhD; Vignesh Venkatraman; Min Lim; Rebecca Ward, MSc; Nicholas S. Wilson; Christina Riordan; Matthew Costa; Randi B. Gombos, PhD; Benjamin Morin, PhD; Dhan Chand, PhDAntibody; Costimulation; NK/NK T cell; T cell; Tumor microenvironment
P660A novel bispecific agent targeting PD-L1 and IL-15/IL-15Ralpha promotes potent anti-tumor efficacy in multiple models of human solid carcinomasKarin M. Knudson, PhD; Kristin C. Hicks, PhD; Yohei Ozawa, MD, PhD; Jeffrey Schlom, PhD; John Lee, MD; Shahrooz Rabizadeh, PhD; Patrick Soon-Shiong, MD, FRCS, FACS; Sofia Gameiro, PharmD, PhDCheckpoint blockade; Cytokine; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P661Quantitative cell-based reporter gene bioassays to advance individual or combination cancer immunotherapyJamison J. Grailer, PhD; Jun Wang; Julia Gilden, PhD; Pete Stecha; Denise Garvin; Michael Beck; Jim Hartnett; Frank Fan, PhD; Mei Cong, PhD; Zhi-jie J. Cheng, PhDAntibody; Checkpoint blockade; Coinhibition; Costimulation; T cell
P662A phase 1a/b study investigating novel anti-PD-L1 antibody (LY3300054): interim safety and clinical activity in patients with advanced cancers.Antoine Hollebecque, MD; Hyun Cheol Chung, MD, PhD; Marcus O. Butler, MD; Antoine Italiano, MD; Chia-Chi Lin, MD, PhD; Jean-Pascal Machiels, MD, PhD; Wu-Chou Su, MD; Marc Peeters, MD, PhD; Leijun Hu, PhD; Anna M. Szpurka, PhD; Danni Yu, PhD; Anindya Chatterjee, PhD; Burkhard Vangerow, MD; Shivani Nanda, MS; Yumin Zhao, PhD; Mythili Koneru, MD; Yung-Jue Bang, MD PhD; Antoine Hollebecque, MD; Antoine Hollebecque, MDAntibody; Biomarkers; Clinical study; Solid tumors; Targeted therapy
P663Successful monitoring of checkpoint inhibitors by flow cytometryLaila-Aicha Hanafi; Valerie Hebert; Delphine Labit; Jean-Francpos Poulin, PhD, MBA; Vicky Sgouroudis, PhD; Philippe Pouliot, PhDCheckpoint blockade; Immune monitoring; Immune suppression; T cell
P664Simultaneous checkpoint - checkpoint or checkpoint - costimulatory receptor targeting with bispecific antibodies promotes enhanced human T cell activationMichael Hedvat, PhD; Gregory L. Moore, PhD; Matthew J. Bernett, PhD; Christine Bonzon, PhD; Kendra N. Avery, PhD; Rumana Rashid, PhD; Alex Nisthal, PhD; Umesh Muchhal, PhD; John R. Desjarlais, PhDAntibody; Checkpoint blockade; Coinhibition; Costimulation; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P665Anti-tumor synergy evaluation of an AZD4635/ anti-PD-L1 combination therapy using a quantitative systems modelVeronika Voronova, MSc; Lulu Chu, PhD; Yuri Kosinsky, PhD; Alexandra Borodovsky, PhD; Richard Woessner, PhD; Kris Sachsenmeier, PhD; Ganesh Mugundu, PhD; Melinda S. Merchant, MD, PhD; Wenlin Shao, PhD; Kirill Peskov, PhD; Gabriel Helmlinger, PhD; Antigen presenting cells; Checkpoint blockade; T cell; Tumor microenvironment
P666Antitumor efficacy of anti-TIGIT antagonist antibody EOS884448 is mediated by a dual mechanism of action involving restoration of T cell effector functions and preferential depletion of Tregs.Chaterine Hoofd; Julia Cuende, PhD; Virginie Rabolli, PhD; Julie Preillon, MSc; Noemie Wald, PhD; Lucile Garnero; Florence Lambolez, PhD; Marjorie Mercier; Shruthi Prasad, PhD; Florence Nyawame; Sofie Denies, PhD; Margreet Brouwer, MSc; Erica Houthuys, PhD; Veronique Bodo, PhD; Xavier Leroy, PhD; Scott Chappel; Michel Detheux, PhD; Gregory Driessens, PhD; Chaterine Hoofd; Olivier de Henau; Antibody; Checkpoint blockade; NK/NK T cell; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P667EOS100850, an insurmountable and non-brain penetrant A2A receptor antagonist, inhibits adenosine-mediated T cell suppression, demonstrates anti-tumor activity and shows best-in class characteristics.Erica Houthuys, PhD; Stefano Crosignani, PhD; Reece Marillier, PhD; Theo Deregnaucourt, MSc; Margreet Brouwer, MSc; Romain Pirson, MSc; Joao Marchante, MSc; Annelise Hermant, MSc; Florence Nyawouame, MSc; Julie Preillon, MSc; Kim Frederix, PhD; Anne-Catherine Michaux, MSc; Jakub Swiercz, PhD; Gregory Driessens, PhD; Noemie Wald, PhD; Chiara Martinoli, PhD; Veronique Bodo, PhD; Michel Detheux, PhD; Xavier Leroy, PhDCheckpoint blockade; Immune suppression; T cell; Tumor evasion; Tumor microenvironment
P668Selection of optimized drug candidates, dosing regimen, pharmacodynamic endpoints, tumor types, and biomarkers for translating inhibition of the adenosine pathway into effective anti-tumor activityJuan C. Jaen, PhD; Jay P. Powers, PhD; Ulrike Schindler, PhD; Steve W. Young, PhD; Matthew J. Walters, PhD; Joanne BL. Tan, PhD; Lisa Seitz, MScCheckpoint blockade; Clinical trial; Immune suppression; Immune tolerance; T cell; Tumor microenvironment
P669First-in-human Phase 1 study of INCMGA00012 in patients with advanced solid tumors: Interim results of the cohort expansion phaseJanice J. Mehnert, MD; Anthony Joshua, MD; Nehal Lakhani, MD, PhD; Udai Banerji; Drew Rasco; Iwona Lugowska; Monika Tomaszewska-Kiecana; Elena Garralda; Deanna Kornacki, PhD; Bradley J. Sumrow; Mark Cornfeld, MD, MPH; Chuan Tian; John D. Powderly, II, MD, CPICheckpoint blockade; Clinical study; Clinical trial; Solid tumors
P671Discovery of a novel anti-LAG3 antagonist antibodyWenqing Jiang, PhD; Lei Fang; Zhengyi Wang; Taylor B. Guo; Jingwu Zang; Checkpoint blockade; Coinhibition; T cell
P672Discovery and development of a humanized monoclonal antibody targeting the CD73 immune checkpoint for cancer immunotherapyH. Toni Jun, Ph.D.; Fen Pei, Ph.D.; Hui Zou, Ph.D.; Ming Wang, Ph.D.; Antibody; Checkpoint blockade; Coinhibition; Immune suppression; Immune tolerance; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion; Tumor microenvironment
P673Preliminary results from an ongoing phase 1 study of AB122, an anti-programmed cell death-1 (PD-1) monoclonal antibody, in patients with advanced solid tumorsPaul de Souza, MBBS, MPH, PHD, FRACP; Chee Khoon Lee; Katrin Sjoquist; Shu Pan; Amanda Idan; Aimee K. Rieger, B.S.; Wade Berry, BA; Lixia Jin; Lisa Seitz, MSc; Devika Ashok, PhD; Matthew J. Walters, PhD; Dana Piovesan, MSc; Joanne BL. Tan, PhD; Susan J. Lee, PhD; Adam Park, BS; Daniel DiRenzo, PhD; Joyson Karakunnel, MD, MScAntibody; Checkpoint blockade; Clinical study; Clinical trial; Immune suppression; Solid tumors; Tumor evasion; Tumor microenvironment
P674Defining Tim-3 signaling and localization during T cell activationShunsuke Kataoka, Ph.D; Lawrence P. Kane, Ph.D.Antigen presenting cells; Costimulation; T cell
P675Mechanisms of primary resistance to immune checkpoint blockadeDuane Moogk, PhD; Michelle Krogsgaard, PhD; Kaitao Li, PhD; Zhou Yuan, PhD; Shi Zhong, PhD; Zhiya Yu; Ivan Liadi; William Rittase, PhD; Victoria Fang, BS; Janna Dougherty, BS; Arianne Perez-Garcia, PhD; Iman Osman; Jeffrey S. Weber, MD, PhD; Navin Varadarajan, PhD; Nicholas P. Restifo, MD; Alan Frey, PhD; Cheng Zhu, PhD; Biomarkers; Checkpoint blockade; Immune suppression; Proteomics; T cell; Targeted therapy
P676Targeting the sialoglycan/Siglec pathway in combination with checkpoint inhibitors for cancer immunotherapyMichal Stanczak; Natalia Rodrigues Mantuano; Adam Petrone; Melissa Anne Gray; Carolyn Bertozzi; Li Peng, PhD; Alfred Zippelius, MD; Heinz Läubli, MD PhDCheckpoint blockade; Coinhibition; T cell; Tumor infiltrating lymphocytes (TILs); Tumor evasion
P677The antitumor efficacy of TIM-3 blockade in a murine model of sarcomaKristen McEachern, PhD; Geeta Sharma; Srimoyee Ghosh, PhD; Sridhar Ramaswamy, MD; David Jenkins, PhDCheckpoint blockade; Coinhibition
P678Targeting Siglec-15 with NC318, a novel therapeutic antibody to enhance anti-tumor immunityLinda N. Liu, PhD; Jun Wang, PhD; Jingwei Sun, PhD; Dallas Flies, PhD; Chang Song, PhD; Melissa Zarr, PhD; Kristina Archer, PhD; Alison McGuire, BS; Tom O'Neill, MS; Karla Maloveste, MS; Xinxin Nie, PhD; Agedi Boto, MD/PhD; Ron Copeland, PhD; Sathya Janardhanan, MS; Tete Obot, BS; Jim Bingham, PhD; Kevin N. Heller, MD; Sol Langermann, PhD; Lieping Chen, MD, PhD;Antibody; Checkpoint blockade; Coinhibition; Costimulation; Immune suppression; Monocyte/Macrophage; Solid tumors; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P679Neuropilin-1 is a T cell memory checkpoint limiting long-term tumor immunityChang Liu, PhD; Ashwin Somasundaram, MD; Tullia C. Bruno, PhD; Creg Workman, PhD; Dario A. VagnaliCheckpoint blockade; Immune suppression; T cell; Tumor evasion
P681A translational platform using primary human immune cells in vitro, syngeneic and humanized models in vivo to support and advance immune-oncology drug discoveryShilina Roman; Gary Salmon; Julie Hawkins; Jonathan White, PhD; Julia Lloyd; Ria Goodwin; Arunima A. Ganguli, PhD; Omar Aziz; Julia Schueler; Ian Waddell; Martin O'Rourke; Edgar R. Wood, Ph.D.Antibody; Checkpoint blockade; Cytokine; Immune adjuvant; Immune monitoring; Inflammation; Monocyte/Macrophage; Stem cell/cancer-initiating cell; T cell; Tumor microenvironment
P682Treatment-naïve HPV+ head and neck cancers display a T-cell-inflamed phenotype distinct from their HPV- counterparts that has implications for immunotherapySaman Maleki Vareki; Steven F. Gameiro; Farhad Ghasemi; John W. Barrett; James Koropatnick; Anthony C. Nichols; Joe S. MymrykBioinformatics; Biomarkers; Checkpoint blockade; Costimulation; Dendritic cell; Immune monitoring; Solid tumors; Surgery; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P683The CTLA-4 x OX40 bispecific antibody ATOR-1015 induces anti-tumor effects through tumor-directed immune activationAnne Mansson Kvarnhammar, PhD; Niina Veitonmäki; Karin Hagerbrand, PhD; Mia Thagesson; Doreen Werchau, BS; Kristine Smedenfors; Anna Dahlman; Anna Rosen, MSc; Maria Johansson; Ida Åberg; Per Norlen, MD, PhD; Christina Furebring, PhD; Peter Ellmark, PhDAntibody; Checkpoint blockade; Costimulation; Regulatory T cell (Treg cell); T cell
P684Preclinical studies of TIM-3 blockade supporting clinical development of BMS-986258, an anti‒TIM-3 monoclonal antibodyXiao Min Schebye, PhD; Minhua Han; Hong-An Truong; Andy Deng; Alan J. Korman, PhD; Mark Selby, PhD; Christine BeeAntibody; Checkpoint blockade; T cell; Tumor infiltrating lymphocytes (TILs)
P685CD226 impact on TIGIT blockade in T-cell rejuvenationKatherine G. MacDonald, PhD; Yoon Park; Padma Perkins; Eric Boyer; Salvatore Santino; Michael Hamilton; Ishita Barman; Pavel Strop; Alan J. Korman, PhD; Bryan Barnhart, PhDAntibody; Checkpoint blockade; Immune suppression; T cell; Tumor infiltrating lymphocytes (TILs)
P686The number of metastatic compartments involved at immunotherapy initiation may influence survival in stage-IV non-small cell lung cancer.Abdul Rafeh Naqash, MD; Mahvish Muzaffar, MD; Paul R. Walker, MD; Li V. Yang, PhDAntibody; Checkpoint blockade; Clinical study; Tumor microenvironment
P687Single-cell analysis of human T cells in the bladder tumor microenvironment reveals novel cytotoxic CD4s that are modulated by anti-PD-L1 therapyDavid Y. Oh, MD, PhD; Serena Kwek; Siddharth S. Raju, BS; Tony Li, BS; Eric Chow, PhD; Arun Burra, BS; Chien-Chun S. Pai, PhD; Chiara Rancan, PhD; Yang Sun, PhD; Jacky Li, BS; Dvir Aran, PhD; Matthew Spitzer, PhD; Serghei Mangul, PhD; Sima Porten, MD; Maxwell V. Meng, MD; Terence Friedlander, MD; Chun Jimmie Ye, PhD; Lawrence Fong, MDBioinformatics; Biomarkers; Immune contexture; Immune monitoring; Solid tumors; Systems biology; T cell; T cell lineages; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P688Peripheral blood profiling to identify predictors of sensitivity to anti–PD-1 blockade in non-small cell lung cancerAkio Osa; shohei koyama, MD PhD; Yujiro Naito; Takeshi Uenami; Masahide Mori; Atsushi KumanogohCheckpoint blockade; Immune monitoring; T cell
P690Pharmacokinetics (PK) and dosing regimen selection of the PD-1 Inhibitor ABBV-181 in patients with advanced solid tumors: Preliminary Phase 1 results from study M15-891Apurvasena Parikh, PhD; Sreeneeranj Kasichayanula, PHD; Rajeev Menon; Daniel Afar, PhD; Stacie L. Lambert; Benjamin Engelhardt; Sven Mensing; Antibody; Checkpoint blockade; Clinical study; Clinical trial; Solid tumors; T cell
P691Correlating skin toxicity and steroid treatment with outcomes of Anti-PD-1 therapyHenry Quach, BS; Anna K. Dewan, MD; Douglas B. Johnson, MD, MSCI; Autoimmunity; Checkpoint blockade; Coinhibition; Immune suppression; Immune toxicity; Inflammation; Solid tumors; Targeted therapy
P692Effect of steroids in metastatic non-small cell lung cancer (mNSCLC) patients treated with nivolumab after initial platinum therapy in community practices in the United StatesJenine K. Sanzari, PhD; Marc Monté; David A. Smith; Mark Danese; Michelle Gleeson; Deborah Lubeck; James White; Pranav Abraham; Beata Korytowsky; Brian UlrichCheckpoint blockade; Clinical study; Solid tumors
P693Efficacy of ex-vivo PD-1 blockade in cervical tumor draining lymph nodes is related to a CD8+FoxP3+ T-cell subset with high levels of multiple immune checkpoints and superior effector functionsJossie Rotman, MD; Marijne Heeren, MSc; Anita Stam; Noëlle Pocorni, MsC; Awa Gassama; Sanne Samuels, MD, PhD; Maaike Bleeker; Stijn Mom, MD PhD; Henry Zijlmans, MD PhD; Gemma G. Kenter, MD,PhD; Ekaterina S. Jordanova, PhD; Tanja D. de Gruijl, PhD; Biomarkers; Checkpoint blockade; Immune monitoring; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor antigens; Tumor microenvironment
P694An orally bioavailable small molecule dual antagonist of TIGIT and PD-L1 pathways shows immune-mediated anti-tumor activityPottayil Sasikumar, PhD; Sudarshan Naremaddepalli, PhD; Sandeep Patil, PhD; Chennakrishnareddy Gundala; Raghuveer K. Ramachandra, PhD; Nagesh Gowda, PhD; Saikrishna Tangela; Sreenivas Adurthi, PhD; Amit Dhudashia, MSc; Dodheri Samiulla, PhD; Nagaraj Gowda, PhD; Kavitha Nellore; Murali Ramachandra, PhDCheckpoint blockade; Coinhibition
P695Differential expression of microRNAs in immune cell subpopulations during checkpoint inhibitor treatmentBarbara Seliger, MD, PhD; Rolf Kiessling, MD, PhDAntigen presenting cells; Checkpoint blockade; Immune monitoring; T cell
P696Combined anti-PD-1 and anti-LAG-3 checkpoint blockade enhances CD8+ TIL effector function while reducing Tregs leading to reduced immune suppression and improved overall survivalElizabeth R. Sturgill, PhD; Courtney Mick, BS; Elizabeth R. Sturgill, PhD; David Jenkins, PhD; Johanna K. Kaufmann, PhD, MSc; William L. Redmond, PhD; Antibody; Checkpoint blockade; Immune suppression; Regulatory T cell (Treg cell); T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment
P697Preclinical characterization of AB154, a fully humanized anti-TIGIT antibody, for use in combination therapiesJoanne BL. Tan, PhD; Amy Anderson, PhD; Daniel DiRenzo, PhD; Annette Becker, PhD; Susan J. Lee, PhD; Lisa Seitz, MSc; Rick Stanton, MSEE; Hema Singh; Sharon Zhao; Nigel PC. Walker, PhD; Matthew J. Walters, PhDCheckpoint blockade; Coinhibition; Gene expression; Immune monitoring; NK/NK T cell; Regulatory T cell (Treg cell); T cell
P698Outcomes of advanced triple negative breast cancer patients enrolled in immune oncology clinical trialsTira Tan, MBBS; Lisa Wang; David Cescon; Eitan Amir; David Warr; Christine Elser; Marcus O. Butler, MD; Albiruni R. Razak; Aaron Hansen; Anna Spreafico, MD PhD; Lillian Siu, MD; Philippe Bedard, MD;Checkpoint blockade; Chemotherapy; Clinical study; Solid tumors
P699MEDI0562, a humanized OX40 agonist monoclonal antibody (mAb), increases T cell effector function and depletes regulatory T cells in blood and tumorKatie Streicher, PhD; Keith E. Steele, DVM, PhD; Steven Eck, Ph.D.; Yanan Zheng, PhD; Farzad Sekhavati, PhD; Han Si; Fernanda Pilataxi; Song Wu, PhD; Brandon W. Higgs, PhD; Danielle Townsley; Rakesh Kumar, PhD; Mike Sheehan, PhD; Scott Hammond, PhD; Matthew Gribbin; Victoria Chiou, MD; Maria Jure-Kunkel; Sandip P. Patel, MD; John D. Powderly, II, MD, CPI; Bonnie S. Glisson, MD; Koustubh Ranade, PhDClinical trial; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor microenvironment
P700Immune checkpoint inhibitors induce differential anti-tumor response and immune cell infiltration across syngeneic modelsPatrick Allison, PhD; Hua-Chen Chang; Lauren B. Ursic, BA; Paul Trampont, PhD; Lindsey Standarski; Jennifer L. Rusk, NA; Brandy Wilkinson, PhDCheckpoint blockade; Myeloid cells; Regulatory T cell (Treg cell); Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs)
P701Off-label use of immunotherapy in advanced malignanciesDavid Xu; Kathryn Gold, MD; Lyudmila Bazhenova, MD; Sandip P. Patel, MDCheckpoint blockade
P702Acute liver injury in the context of immune checkpoint inhibitor-related colitis treated with infliximabHao Chi Zhang, MD; Wenyi Luo, MD; Yinghong Wang, MD, PhD; Checkpoint blockade; Immune toxicity; Inflammation
P703Exploration of PD-1/PD-L1 spatial interaction and T cells functionality to predict anti-PD-1 treatment outcome in GI tract tumors using automated quantitative fluorescence multiplexed IHCXiangxue Wang, B.S.; Shizen Moh, B.S.; José L. Muñoz-Rodríguez, PhD; Antony Hubbard, BS; Mehrnoush Khojasteh, PhD; Qingfeng Zhu, PhD; Robert A. Anders, MD, PhD; Luis A. Diaz, MD; Lidija Pestic-Dragovich; Lei Tang, PhD; Wenjun Zhang, MD, PhD; Antibody; Biomarkers; Checkpoint blockade; Immune contexture; Immune suppression; Solid tumors; T cell; Tumor infiltrating lymphocytes (TILs); Tumor microenvironment; Tumor stroma
P704Batf3 dendritic cells within the tumor microenvironment are necessary during the effector phase of the immune response for anti-PD-L1 efficacy through a mechanism involving the 4-1BB/4-1BB ligand axisAndrea Ziblat, PhD; Brendan L. Horton; Philip C. He, BA; Thomas F. Gajewski, MD, PhD;Checkpoint blockade; Costimulation; Dendritic cell; T cell
P705Time to GoInVivo(TM), validated checkpoint functional antibodies for cancer researchMiguel Tam, PhD; Josh Croteau; Antibody; Cytokine; Immune monitoring; Immune suppression; T cell; Tumor antigens