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肿瘤表位免疫原性关键参数可提升新抗原预测效率
作者:小柯机器人 发布时间:2020/10/12 17:01:06

美国帕克癌症免疫疗法研究所Nadine A. Defranoux、Daniel K. Wells等研究人员合作通过联合体方法揭示出肿瘤表位免疫原性的关键参数,并改善了新抗原的预测。相关论文于2020年10月9日在线发表在《细胞》杂志上。

研究人员组建了一个全球联盟,每个参与者都从共享的肿瘤测序数据中预测了免疫原性表位。随后评估患者匹配样品中608个表位的T细胞结合。通过整合与呈现和识别相关的肽特征,研究人员开发了肿瘤表位免疫原性模型,该模型以高于0.70的精度滤除了98%的非免疫原性肽。优先考虑模型特征的方案具有卓越的性能,利用特征的方案变更可改善预测性能。
 
在一个独立的队列中,肿瘤测序数据确定了310个表位,并对T细胞结合进行了评估,从而验证了这些发现。该数据资源能够确定有效抗肿瘤免疫力的基础参数,可供研究团体使用。
 
据介绍,鉴定与治疗相关新抗原的许多方法将肿瘤测序与生物信息学算法结合,并推断出肿瘤表位免疫原性的规则。但是,没有参考数据可以比较这些方法,并且控制肿瘤表位免疫原性的参数仍然不清楚。
 
附:英文原文

Title: Key Parameters of Tumor Epitope Immunogenicity Revealed Through a Consortium Approach Improve Neoantigen Prediction

Author: Daniel K. Wells, Marit M. van Buuren, Kristen K. Dang, Vanessa M. Hubbard-Lucey, Kathleen C.F. Sheehan, Katie M. Campbell, Andrew Lamb, Jeffrey P. Ward, John Sidney, Ana B. Blazquez, Andrew J. Rech, Jesse M. Zaretsky, Begonya Comin-Anduix, Alphonsus H.C. Ng, William Chour, Thomas V. Yu, Hira Rizvi, Jia M. Chen, Patrice Manning, Gabriela M. Steiner, Xengie C. Doan, Aly A. Khan, Amit Lugade, Ana M. Mijalkovic Lazic, Angela A. Elizabeth Frentzen, Arbel D. Tadmor, Ariella S. Sasson, Arjun A. Rao, Baikang Pei, Barbara Schrrs, Beata Berent-Maoz, Beatriz M. Carreno, Bin Song, Bjoern Peters, Bo Li, Brandon W. Higgs, Brian J. Stevenson, Christian Iseli, Christopher A. Miller, Christopher A. Morehouse, Cornelis J.M. Melief, Cristina Puig-Saus, Daphne van Beek, David Balli, David Gfeller, David Haussler, Dirk Jger, Eduardo Cortes, Ekaterina Esaulova, Elham Sherafat, Francisco Arcila, Gabor Bartha, Geng Liu, George Coukos, Guilhem Richard, Han Chang, Han Si, Inka Zrnig, Ioannis Xenarios, Ion Mandoiu, Irsan Kooi, James P. Conway, Jan H. Kessler, Jason A. Greenbaum, Jason F. Perera, Jason Harris, Jasreet Hundal, Jennifer M. Shelton, Jianmin Wang, Jiaqian Wang, Joel Greshock, Jonathon Blake, Joseph Szustakowski, Julia Kodysh, Juliet Forman, Lei Wei, Leo J. Lee, Lorenzo F. Fanchi, Maarten Slagter, Maren Lang, Markus Mueller, Martin Lower, Mathias Vormehr, Maxim N. Artyomov, Michael Kuziora, Michael Princiotta, Michal Bassani-Sternberg, Mignonette Macabali, Milica R. Kojicic, Naibo Yang, Nevena M. Ilic Raicevic, Nicolas Guex, Nicolas Robine, Niels Halama, Nikola M. Skundric, Ognjen S. Milicevic, Pascal Gellert, Patrick Jongeneel, Pornpimol Charoentong, Pramod K. Srivastava, Prateek Tanden, Priyanka Shah, Qiang Hu, Ravi Gupta, Richard Chen, Robert Petit, Robert Ziman, Rolf Hilker, Sachet A. Shukla, Sahar Al Seesi, Sean M. Boyle, Si Qiu, Siranush Sarkizova, Sofie Salama, Song Liu

Issue&Volume: 2020-10-09

Abstract: Many approaches to identify therapeutically relevant neoantigens couple tumor sequencingwith bioinformatic algorithms and inferred rules of tumor epitope immunogenicity.However, there are no reference data to compare these approaches, and the parametersgoverning tumor epitope immunogenicity remain unclear. Here, we assembled a globalconsortium wherein each participant predicted immunogenic epitopes from shared tumorsequencing data. 608 epitopes were subsequently assessed for T cell binding in patient-matchedsamples. By integrating peptide features associated with presentation and recognition,we developed a model of tumor epitope immunogenicity that filtered out 98% of non-immunogenicpeptides with a precision above 0.70. Pipelines prioritizing model features had superiorperformance, and pipeline alterations leveraging them improved prediction performance.These findings were validated in an independent cohort of 310 epitopes prioritizedfrom tumor sequencing data and assessed for T cell binding. This data resource enablesidentification of parameters underlying effective anti-tumor immunity and is availableto the research community.

DOI: 10.1016/j.cell.2020.09.015

Source: https://www.cell.com/cell/fulltext/S0092-8674(20)31156-9

期刊信息
Cell:《细胞》,创刊于1974年。隶属于细胞出版社,最新IF:36.216
官方网址:https://www.cell.com/