@article{07302acec2f845e4b3432769e7ec02e6,
title = "Landscape mapping of shared antigenic epitopes and their cognate tcrs of tumor-infiltrating T lymphocytes in Melanoma",
abstract = "HLA-restricted T cell responses can induce antitumor effects in cancer patients. Previous human T cell research has largely focused on the few HLA alleles prevalent in a subset of ethnic groups. Here, using a panel of newly developed peptide-exchangeable peptide/HLA multimers and artificial antigen-presenting cells for 25 different class I alleles and greater than 800 peptides, we systematically and comprehensively mapped shared antigenic epitopes recognized by tumor-infiltrating T lymphocytes (TILs) from eight melanoma patients for all their class I alleles. We were able to determine the specificity, on average, of 12.2% of the TILs recognizing a mean of 3.1 shared antigen-derived epitopes across HLA-A, B, and C. Furthermore, we isolated a number of cognate T cell receptor genes with tumor reactivity. Our novel strategy allows for a more complete examination of the immune response and development of novel cancer immunotherapy not limited by HLA allele prevalence or tumor mutation burden.",
author = "Kenji Murata and Munehide Nakatsugawa and Rahman, {Muhammed A.} and Nguyen, {Linh T.} and Millar, {Douglas G.} and Mulder, {David T.} and Kenji Sugata and Hiroshi Saijo and Yukiko Matsunaga and Yuki Kagoya and Tingxi Guo and Mark Anczurowski and Wang, {Chung Hsi} and Burt, {Brian D.} and Dalam Ly and Kayoko Saso and Alexandra Easson and Goldstein, {David P.} and Michael Reedijk and Ghazarian, {Danny A.} and Pugh, {Trevor J.} and Butler, {Marcus O.} and Mak, {Tak W.} and Ohashi, {Pamela S.} and Naoto Hirano",
note = "Funding Information: This work was supported by Funding Information: Researchers and a Guglietti Fellowship (YK); the Province of Ontario (TG, MA); and the Natural Funding Information: We thank the Princess Margaret Melanoma/Skin Oncology Disease Site, BioBank, and Cell Production Team for collecting melanoma samples and generating TILs. This work was supported by an Ontario Institute for Cancer Research Clinical Investigator Award IA-039 (NH); the Terry Fox immunotherapy NeTwork (iTNT) Program (PSO, NH); the Princess Margaret Cancer Centre Innovation Accelerator Fund (NH); the Princess Margaret Cancer Foundation (NH, MOB); the Mitacs Internship (KM); a Japan Society for the Promotion of Science Postdoctoral Fellowship for Overseas Researchers and a Guglietti Fellowship (YK); the Province of Ontario (TG, MA); and the Natural Sciences and Engineering Research Council of Canada Postgraduate Scholarship (TG). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Publisher Copyright: {\textcopyright} 2020, eLife Sciences Publications Ltd. All rights reserved.",
year = "2020",
month = apr,
doi = "10.7554/eLife.53244",
language = "English",
volume = "9",
journal = "eLife",
issn = "2050-084X",
publisher = "eLife Sciences Publications",
}