PMID- 21319977 OWN - NLM STAT- MEDLINE DCOM- 20110524 LR - 20221207 IS - 1557-8976 (Electronic) IS - 0882-8245 (Linking) VI - 24 IP - 1 DP - 2011 Feb TI - Chinese human immunodeficiency virus-1 patients with different routes of transmission exhibit altered expression levels of blood dendritic cell subpopulations. PG - 35-43 LID - 10.1089/vim.2010.0038 [doi] AB - Dendritic cells (DCs) play a pivotal role in the pathogenesis of human immunodeficiency virus-1 (HIV-1). Reduced numbers of blood DCs have been observed in individuals with chronic HIV-1 infection. In the present study, we analyzed the expression levels of monocytes, myeloid dendritic cell (mDC) precursors, mDCs, and plasmacytoid dendritic cells (pDCs), in HIV-1-infected patients in China who were infected via different routes of transmission, including heterosexual and homosexual sexual contact, and blood transmission through importation of blood or blood products, to further elucidate their role in HIV. Compared with HIV-negative individuals (n = 40), relative levels of CD11c+CD14(-)mDCs, CD11c++CD123(low) mDCs, and CD11c(-)CD123+ pDCs in total peripheral blood mononuclear cells (PBMCs) were significantly lower in all HIV patients (n = 93), and in those with blood transmission (n = 26) and heterosexual transmission (n = 43), while relative levels of CD11c+CD14(-)mDCs were significantly lower in HIV patients infected via homosexual transmission (n = 24). The results of correlation analysis demonstrated a significant negative correlation between CD4+ T-cell counts and the relative levels of CD11c++CD123(low) mDCs in HIV-I patients infected via blood transmission. There was no significant correlation between CD4+ T-cell counts and the expression level of other DC subpopulations in PBMCs from HIV patients. The results of this study suggest that HIV-1 patients with different routes of transmission exhibit altered expression levels of blood DC subpopulations, which contributes to dysregulated immune responses and pathogenesis of HIV-1. FAU - Zhao, Jun-Li AU - Zhao JL AD - Immunology and Reproductive Biology Laboratory of Medical School and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China. FAU - Hao, Sha AU - Hao S FAU - Feng, Min-Min AU - Feng MM FAU - Li, Peng-Fei AU - Li PF FAU - Gong, Wei AU - Gong W FAU - Xu, Xiao-Qin AU - Xu XQ FAU - Huan, Xi-Ping AU - Huan XP FAU - Fu, Geng-Feng AU - Fu GF FAU - Hou, Ya-Yi AU - Hou YY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Viral Immunol JT - Viral immunology JID - 8801552 RN - 0 (CD11c Antigen) RN - 0 (IL3RA protein, human) RN - 0 (Interleukin-3 Receptor alpha Subunit) RN - 0 (Lipopolysaccharide Receptors) SB - IM MH - Adult MH - Asian People MH - Blood/immunology MH - CD11c Antigen/analysis MH - CD4 Lymphocyte Count MH - China MH - Dendritic Cells/chemistry/*immunology MH - Female MH - HIV Infections/*immunology MH - HIV-1/*immunology MH - Humans MH - Interleukin-3 Receptor alpha Subunit/analysis MH - Lipopolysaccharide Receptors/analysis MH - Male MH - Middle Aged EDAT- 2011/02/16 06:00 MHDA- 2011/05/25 06:00 CRDT- 2011/02/16 06:00 PHST- 2011/02/16 06:00 [entrez] PHST- 2011/02/16 06:00 [pubmed] PHST- 2011/05/25 06:00 [medline] AID - 10.1089/vim.2010.0038 [doi] PST - ppublish SO - Viral Immunol. 2011 Feb;24(1):35-43. doi: 10.1089/vim.2010.0038.