Elevated expression of miR-146a correlates with high levels of immune cell exhaustion markers and suppresses cellular immune function in chronic HIV-1-infected patients
Elevated expression of miR-146a correlates with high levels of immune cell exhaustion markers and suppresses cellular immune function in chronic HIV-1-infected patients
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miR-146a 表达升高与免疫细胞耗竭标志物水平升高相关,并抑制慢性 HIV-1 感染患者的细胞免疫功能
DOI:
10.1038/s41598-019-55100-2
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发表时间:
2019-12
期刊:
影响因子:
--
通讯作者:
Feng Y(共同通讯)
中科院分区:
文献类型:
--
作者:
Yu T;Ju Z;Luo MQ;Hu RH;Teng Y;Xie LL;Zhong CJ;Chen L;Hou W(共同通讯);Xiong Y(共同通讯);Feng Y(共同通讯)
Functional exhaustion of immune cells is a defining characteristic of HIV-1 chronic infections, exhibiting dysregulation of cellular immune responses and expression of co-inhibitory receptors. Although the molecular mechanisms controlling immune-cell exhaustion retains largely unknown, immune checkpoint blockade strategy has shown inspiring potential to reinvigorate T cell functions in chronic infections. In this study, we investigated peripheral blood mononuclear cells (PBMCs) exhaustion markers from 109 chronic HIV-1-infected patients and found they correlated positively with microRNA-146a, which was inversely correlated with CD4+ T cell count. Intriguingly,ex vivoneutralization of miR-146a in PBMCs from chronic HIV-1 infection exhibited an elevated antiviral cytokines production as well as the expression of GZMB and perforin, while simultaneously, decreased the inhibitory receptors expression such as PD-1, CTLA-4, TIM-3 and LAG-3. These results highlight the importance of miR-146a to HIV-1 induced immune cell exhaustion, and uncover a novel layer of HIV/AIDS pathogenesis and provide potential targets for improved immune intervention.
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影响因子:
15.3
作者:
Freeman, Gordon J.;Wherry, E. John;Ahmed, Rafi;Sharpe, Arlene H.
通讯作者:
Sharpe, Arlene H.
影响因子:
7.3
作者:
Li Z;Zhang S;Wan Y;Cai M;Wang W;Zhu Y;Li Z;Hu Y;Wang H;Chen H;Cui L;Zhang X;Zhang J;He W
通讯作者:
He W
影响因子:
15.9
作者:
Zhen, Anjie;Rezek, Valerie;Kitchen, Scott G.
通讯作者:
Kitchen, Scott G.
影响因子:
6.4
作者:
Gay, Cynthia L.;Bosch, Ronald J.;Eron, Joseph J.
通讯作者:
Eron, Joseph J.
影响因子:
168.9
作者:
Maartens, Gary;Celum, Connie;Lewin, Sharon R.
通讯作者:
Lewin, Sharon R.