Cutting Edge: 2B4-Mediated Coinhibition of CD4(+) T Cells Underlies Mortality in Experimental Sepsis.

Cutting Edge: 2B4-Mediated Coinhibition of CD4(+) T Cells Underlies Mortality in Experimental Sepsis.
复制标题

DOI:
10.4049/jimmunol.1700375
复制
发表时间:
2017-09-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Ford ML
Ford ML
中科院分区:
其他
文献类型:
--
作者:
Chen CW;Mittal R;Klingensmith NJ;Burd EM;Terhorst C;Martin GS;Coopersmith CM;Ford ML

文献摘要

参考文献

被引文献

相似文献

脓毒症在美国是导致死亡的主要原因,但脓毒症引起的免疫失调的机制仍然知之甚少。2B4 (CD244, SLAM4)是一种主要在NK细胞和记忆性CD8+ T细胞上表达的共信号分子,在病毒感染和自身免疫模型中已被证明可调节T细胞功能。本研究表明2B4信号通路介导脓毒症淋巴细胞功能障碍和死亡。在脓毒症动物和人类患者的CD4+ T细胞中,2B4的表达在早期时间点均升高。重要的是,在小鼠盲肠结扎和穿刺(CLP)模型中,基因缺失或药物抑制2B4均显著提高了存活率。此外,CD4特异性条件敲除表明,2B4以细胞固有的方式作用于CD4+ T细胞群,并在败血症期间调节适应性和先天免疫反应。我们的研究结果阐明了CD4+ T细胞上2B4共抑制信号在介导免疫失调中的新作用。
Sepsis is a leading cause of death in the U.S. but the mechanisms underlying sepsis-induced immune dysregulation remain poorly understood. 2B4 (CD244, SLAM4) is a cosignaling molecule expressed predominantly on NK cells and memory CD8+ T cells that has been shown to regulate T cell function in models of viral infection and autoimmunity. Here we show that 2B4 signaling mediates sepsis lymphocyte dysfunction and mortality. 2B4 expression is increased on CD4+ T cells in both septic animals and human patients at early time points. Importantly, genetic loss or pharmacologic inhibition of 2B4 each significantly increased survival in a murine cecal ligation and puncture (CLP) model. Further, CD4-specific conditional knockouts showed that 2B4 functions on CD4+ T cell populations in a cell-intrinsic manner and modulates both adaptive and innate immune responses during sepsis. Our results illuminate a novel role for 2B4 coinhibitory signaling on CD4+ T cells in mediating immune dysregulation.
DOI: 10.1073/pnas.0809422106
发表时间: 2009-04-14
影响因子: 11.1
作者:
Huang, Xin;Venet, Fabienne;Ayala, Alfred
通讯作者: Ayala, Alfred
DOI: 10.1001/jama.2011.1829
发表时间: 2011-12-21
影响因子: 120.7
作者:
Boomer, Jonathan S.;To, Kathleen;Chang, Kathy C.;Takasu, Osamu;Osborne, Dale F.;Walton, Andrew H.;Bricker, Traci L.;Jarman, Stephen D., II;Kreisel, Daniel;Krupnick, Alexander S.;Srivastava, Anil;Swanson, Paul E.;Green, Jonathan M.;Hotchkiss, Richard S.
通讯作者: Hotchkiss, Richard S.
2B4 作为小鼠自然杀伤细胞上的非主要组织相容性复合物结合抑制受体。
DOI: 10.1084/jem.20031989
发表时间: 2004-05-03
期刊: The Journal of experimental medicine
影响因子: --
作者:
Lee KM;McNerney ME;Stepp SE;Mathew PA;Schatzle JD;Bennett M;Kumar V
通讯作者: Kumar V
DOI: 10.1084/jem.20130902
发表时间: 2014-02-10
期刊: The Journal of experimental medicine
影响因子: --
作者:
Liu D;Krummey SM;Badell IR;Wagener M;Schneeweis LA;Stetsko DK;Suchard SJ;Nadler SG;Ford ML
通讯作者: Ford ML
DOI: 10.1189/jlb.4a1215-563rr
发表时间: 2016-11-01
影响因子: 5.5
作者:
Serbanescu, Mara A.;Ramonell, Kimberly M.;McConnell, Kevin W.
通讯作者: McConnell, Kevin W.