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Programmed death-1-induced interleukin-10 production by monocytes impairs CD4(+) T cell activation during HIV infection
Journal article   Open access   Peer reviewed

Programmed death-1-induced interleukin-10 production by monocytes impairs CD4(+) T cell activation during HIV infection

Elias A. Said, Franck P. Dupuy, Lydie Trautmann, Yuwei Zhang, Yu Shi, Mohamed El-Far, Brenna J. Hill, Alessandra Noto, Petronela Ancuta, Yoav Peretz, …
Nature medicine, v 16(4), pp 452-U136
01 Apr 2010
PMID: 20208540
url
https://europepmc.org/articles/pmc4229134View
Accepted (AM)Open Access (License Unspecified) Open

Abstract

Biochemistry & Molecular Biology Cell Biology Life Sciences & Biomedicine Medicine, Research & Experimental Research & Experimental Medicine Science & Technology
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 describe a new function for PD-1 whereby microbial products inhibit T cell expansion and function by upregulating PD-1 levels and IL-10 production by monocytes after binding of PD-1 by PD-L1.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Biochemistry & Molecular Biology
Cell Biology
Medicine, Research & Experimental
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