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Updated: Jul 25, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
Published on: June 30, 2013
Monocytes are target cells for IL-10 induction by HIV-1 Nef protein
N Tangsinmankong1, N K Day, R A Good
1Department of Pediatrics, University of South Florida College of Medicine, All Children's Hospital, St. Petersburg, FL 33701, USA.
Abstract:
IL-10 plays a pivotal role in the pathogenesis of several diseases and is elevated in sera of HIV-infected patients. Recently, we demonstrated that HIV Nef induces IL-10 mRNA expression as well as IL-10 production using PBMCs, H9 or U937 cells. This induction of IL-10 is inhibited by a calmodulin antagonist, W-7. In the present study, T or B lymphocytes or monocytes were isolated from PBMCs of healthy HIV-negative donors. Production of IL-10 and mRNA gene expression were analyzed on each isolated cell population after treatment with Nef or SEA for 3-24 h. The results show that Nef induces IL-10 production as well as mRNA expression significantly using monocytes but not with T or B lymphocytes. By contrast, SEA induced IL-10 production as well as mRNA expression using T lymphocytes but not with monocytes or B lymphocytes.
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