Interferon regulatory factor 4 sustains CD8(+) T cell expansion and effector differentiation.
Interferon regulatory factor 4 sustains CD8(+) T cell expansion and effector differentiation.
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DOI:
10.1016/j.immuni.2013.10.007
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发表时间:
2013-11-14
期刊:
影响因子:
32.4
通讯作者:
Sun, Jie
中科院分区:
文献类型:
--
作者:
Yao, Shuyu;Buzo, Bruno Fernando;Pham, Duy;Jiang, Li;Taparowsky, Elizabeth J.;Kaplan, Mark H.;Sun, Jie
Upon infection, CD8+ T cells undergo a stepwise process of early activation, expansion and differentiation into effector cells. How these phases are transcriptionally regulated is incompletely defined. Here, we report that interferon regulatory factor 4 (IRF4), dispensable for early CD8+ T cell activation, was vital for sustaining the expansion and effector differentiation of CD8+ T cells. Mechanistically, IRF4 promoted the expression and function of Blimp1 and T-bet, two transcription factors required for CD8+ T cell effector differentiation, while repressed genes that mediate cell cycle arrest and apoptosis. Selective ablation of Irf4 in peripheral CD8+ T cells impaired anti-viral CD8+ T cell responses, viral clearance and CD8+ T cell-mediated host recovery from influenza infection. IRF4 expression was regulated by T cell receptor (TCR) signaling strength via mammalian target of rapamycin (mTOR). Our data reveal that IRF4 translates differential strength of TCR-signaling into different quantitative and qualitative CD8+ T cell responses.
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影响因子:
30.5
作者:
通讯作者:
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DOI:
10.1073/pnas.1205742109
发表时间:
2012-10-09
影响因子:
11.1
作者:
Nayar, Ribhu;Enos, Megan;Berg, Leslie J.
通讯作者:
Berg, Leslie J.
影响因子:
3.1
作者:
HUPRIKAR, J;RABINOWITZ, S
通讯作者:
RABINOWITZ, S
DOI:
10.1073/pnas.1205834109
发表时间:
2012-05-29
影响因子:
11.1
作者:
Bollig, Nadine;Bruestle, Anne;Lohoff, Michael
通讯作者:
Lohoff, Michael
DOI:
10.1038/nri3166
发表时间:
2012-03-09
期刊:
Nature reviews. Immunology
影响因子:
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作者:
通讯作者:
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