The transcription factor NFAT promotes exhaustion of activated CD8⁺ T cells.
The transcription factor NFAT promotes exhaustion of activated CD8⁺ T cells.
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DOI:
10.1016/j.immuni.2015.01.006
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发表时间:
2015-02-17
期刊:
影响因子:
32.4
通讯作者:
Rao, Anjana
中科院分区:
文献类型:
--
作者:
Martinez, Gustavo J.;Pereira, Renata M.;Aijo, Tarmo;Kim, Edward Y.;Marangoni, Francesco;Pipkin, Matthew E.;Togher, Susan;Heissmeyer, Vigo;Zhang, Yi Chen;Crotty, Shane;Lamperti, Edward D.;Ansel, K. Mark;Mempel, Thorsten R.;Lahdesmaki, Harri;Hogan, Patrick G.;Rao, Anjana
During persistent antigen stimulation, CD8+ T cells show a gradual decrease in effector function, referred to as exhaustion, which impairs responses in the setting of tumors and infections. Here we demonstrate that the transcription factor NFAT controls the program of T cell exhaustion. When expressed in cells, an engineered form of NFAT1 unable to interact with AP-1 transcription factors diminished T cell receptor (TCR) signaling, increased the expression of inhibitory cell surface receptors, and interfered with the ability of CD8+ T cells to protect against Listeria infection and attenuate tumor growth in vivo. We defined the genomic regions occupied by endogenous and engineered NFAT1 in primary CD8+ T cells, and showed that genes directly induced by the engineered NFAT1 overlapped with genes expressed in exhausted CD8+ T cells in vivo. Our data show that NFAT promotes T cell anergy and exhaustion by binding at sites that do not require cooperation with AP-1.
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Kuchroo, Vijay K.
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通讯作者:
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