Wu JQ, Sassé TR, Wolkenstein G, Conceicao V, Saksena MM, Soedjono M, Perera SS, Wang B, Dwyer DE, Saksena NK. Transcriptome analysis of primary monocytes shows global down-regulation of genetic networks in HIV viremic patients versus long-term non-progressors.
Virology 2012;
435:308-19. [PMID:
23158100 DOI:
10.1016/j.virol.2012.10.026]
[Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 09/23/2012] [Accepted: 10/16/2012] [Indexed: 01/09/2023]
Abstract
Despite significant contributions of monocytes to HIV persistence, the genomic basis of HIV-infection of monocytes and its association with plasma viremia remain elusive. To understand HIV interactions with monocytes during disease progression, monocytic transcriptomes from long-term non-progressors (LTNP), HIV+ patients with viral load <1000, with viral load >1000, and seronegative controls were analyzed using Illumina microarray. Differentially expressed genes were identified (fold change >2; adjusted p<0.05) and GSEA between HIV+ groups demonstrated that the down-regulation of the pathways including Toll-like receptor (TLR) signaling, cytokine-cytokine receptor interaction, cell cycle and apoptosis was significantly associated with the viremic groups, whereas their up-regulation with the LTNP group. The down-regulation of TLR pathway in the viremic patients was exemplified by the decreased expression of TLR with the subsequent tuning down of MAPK, NF-κB, JAK-STAT, and IRF cascades. These data provide the first transcriptomic distinction between HIV+ progressors and LTNPs based on primary monocytes.
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