作者
Elias A Said, Franck P Dupuy, Lydie Trautmann, Yuwei Zhang, Yu Shi, Mohamed El-Far, Brenna J Hill, Alessandra Noto, Petronela Ancuta, Yoav Peretz, Simone G Fonseca, Julien Van Grevenynghe, Mohamed R Boulassel, Julie Bruneau, Naglaa H Shoukry, Jean-Pierre Routy, Daniel C Douek, Elias K Haddad, Rafick-Pierre Sekaly
发表日期
2010/4
期刊
Nature medicine
卷号
16
期号
4
页码范围
452-459
出版商
Nature Publishing Group US
简介
Viral replication and microbial translocation from the gut to the blood during HIV infection lead to hyperimmune activation, which contributes to the decline in CD4+ T cell numbers during HIV infection. Programmed death-1 (PD-1) and interleukin-10 (IL-10) are both upregulated during HIV infection. Blocking interactions between PD-1 and programmed death ligand-1 (PD-L1) and between IL-10 and IL-10 receptor (IL-10R) results in viral clearance and improves T cell function in animal models of chronic viral infections. Here we show that high amounts of microbial products and inflammatory cytokines in the plasma of HIV-infected subjects lead to upregulation of PD-1 expression on monocytes that correlates with high plasma concentrations of IL-10. Triggering of PD-1 expressed on monocytes by PD-L1 expressed on various cell types induced IL-10 production and led to reversible CD4+ T cell dysfunction. We …
引用总数
学术搜索中的文章
EA Said, FP Dupuy, L Trautmann, Y Zhang, Y Shi… - Nature medicine, 2010