Chromatin states define tumour-specific T cell dysfunction and reprogramming.

Chromatin states define tumour-specific T cell dysfunction and reprogramming.
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DOI:
10.1038/nature22367
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发表时间:
2017-05-25
期刊:
影响因子:
64.8
通讯作者:
Schietinger A
Schietinger A
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Philip M;Fairchild L;Sun L;Horste EL;Camara S;Shakiba M;Scott AC;Viale A;Lauer P;Merghoub T;Hellmann MD;Wolchok JD;Leslie CS;Schietinger A

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Tumour-specific CD8 T cells in solid tumours are dysfunctional, allowing tumours to progress. The epigenetic regulation of T cell dysfunction and therapeutic reprogrammability (for example, to immune checkpoint blockade) is not well understood. Here we show that T cells in mouse tumours differentiate through two discrete chromatin states: a plastic dysfunctional state from which T cells can be rescued, and a fixed dysfunctional state in which the cells are resistant to reprogramming. We identified surface markers associated with each chromatin state that distinguished reprogrammable from non-reprogrammable PD1hi dysfunctional T cells within heterogeneous T cell populations from tumours in mice; these surface markers were also expressed on human PD1hi tumour-infiltrating CD8 T cells. Our study has important implications for cancer immunotherapy as we define key transcription factors and epigenetic programs underlying T cell dysfunction and surface markers that predict therapeutic reprogrammability.
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