A Distinct Gene Module for Dysfunction Uncoupled from Activation in Tumor-Infiltrating T Cells.

A Distinct Gene Module for Dysfunction Uncoupled from Activation in Tumor-Infiltrating T Cells.
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DOI:
10.1016/j.cell.2016.08.052
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发表时间:
2016-09-08
期刊:
影响因子:
64.5
通讯作者:
Anderson, Ana C.
Anderson, Ana C.
中科院分区:
生物学1区
文献类型:
--
作者:
Singer, Meromit;Wang, Chao;Cong, Le;Marjanovic, Nemanja D.;Kowalczyk, Monika S.;Zhang, Huiyuan;Nyman, Jackson;Sakuishi, Kaori;Kurtulus, Sema;Gennert, David;Xia, Junrong;Kwon, John Y. H.;Nevin, James;Herbst, Rebecca H.;Yanai, Itai;Rozenblatt-Rosen, Orit;Kuchroo, Vijay K.;Regev, Aviv;Anderson, Ana C.

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Reversing the dysfunctional T cell state that arises in cancer and chronic viral infections is the focus of therapeutic interventions; however, current therapies are effective in only some patients and some tumor types. To gain a deeper molecular understanding of the dysfunctional T cell state, we analyzed population and single-cell RNA profiles of CD8+ tumor-infiltrating lymphocytes (TILs) and used genetic perturbations to identify a distinct gene module for T cell dysfunction that can be uncoupled from T cell activation. This distinct dysfunction module is downstream of intracellular metallothioneins that regulate zinc metabolism and can be identified at single-cell resolution. We further identify Gata-3, a zinc-finger transcription factor in the dysfunctional module, as a regulator of dysfunction, and use CRISPR/Cas9 genome editing to show that it drives a dysfunctional phenotype in CD8+ TILs. Our results open novel avenues for targeting dysfunctional T cell states, while leaving activation programs intact. Single-cell profiling of tumor-infiltrating lymphocytes identifies critical regulators of chronic T cell exhaustion in cancer, opening new avenues for targeting dysfunctional T cell states, while leaving activation programs intact.
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