Interferon regulatory factor 4 sustains CD8(+) T cell expansion and effector differentiation.

Interferon regulatory factor 4 sustains CD8(+) T cell expansion and effector differentiation.
复制标题

DOI:
10.1016/j.immuni.2013.10.007
复制
发表时间:
2013-11-14
期刊:
影响因子:
32.4
通讯作者:
Sun, Jie
Sun, Jie
中科院分区:
医学1区
文献类型:
--
作者:
Yao, Shuyu;Buzo, Bruno Fernando;Pham, Duy;Jiang, Li;Taparowsky, Elizabeth J.;Kaplan, Mark H.;Sun, Jie

文献摘要

参考文献

被引文献

相似文献

感染后,CD 8 + T细胞经历早期活化、扩增和分化为效应细胞的逐步过程。这些阶段是如何转录调控是不完全确定的。在这里,我们报告,干扰素调节因子4(IRF 4),早期CD 8 + T细胞活化,维持CD 8 + T细胞的扩增和效应分化是至关重要的。从机制上讲,IRF 4促进了Blimp 1和T-bet的表达和功能,这两种转录因子是CD 8 + T细胞效应分化所需的,同时抑制了介导细胞周期停滞和凋亡的基因。外周CD 8 + T细胞中Irf 4的选择性消融损害了抗病毒CD 8 + T细胞应答、病毒清除和CD 8 + T细胞介导的宿主从流感感染中恢复。IRF 4的表达受T细胞受体(TCR)信号强度通过哺乳动物雷帕霉素靶蛋白(mTOR)调节。我们的数据表明,IRF 4将TCR信号传导的差异强度转化为不同的定量和定性CD 8 + T细胞应答。
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.
DOI: 10.1038/ni.1704
发表时间: 2009-04
期刊: Nature immunology
影响因子: 30.5
作者:
通讯作者: --
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.
DOI: 10.1016/0166-0934(80)90020-8
发表时间: 1980-01-01
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: --
作者:
通讯作者: --