title: Preferential depletion of CD2(low) plasmacytoid dendritic cells in HIV-infected subjects.
abstract: Plasmacytoid dendritic cells (pDCs) are decreased in number and are functionally impaired in HIV act reasons for pDCs depletion are still unknown. It was recently reported that pDCs can be divided into two functionally distinct populations based on their CD2 expression level. To determine how the CD2(high) and CD2(low) populations are affected by HIV infection, we analyzed their frequencies in the peripheral blood of HIV-infected subjects and healthy controls. We found that the CD2(low) pDC subset was preferentially depleted in infected individuals. The frequency of CD2(low) pDCs correlated with the CD4(+) T-cell count but not with the plasma viral load. This finding furthers our understanding of the causes and consequences of pDC depletion during HIV infection.
authors.affiliation: Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.
authors.forename: Qiumei
authors.initials: Q
authors.lastname: Du
authors.forename: Yanmei
authors.initials: Y
authors.lastname: Jiao
authors.forename: Wei
authors.initials: W
authors.lastname: Hua
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.forename: Feili
authors.initials: F
authors.lastname: Wei
authors.forename: Yunxia
authors.initials: Y
authors.lastname: Ji
authors.forename: Peishuang
authors.initials: P
authors.lastname: Du
authors.forename: Yong-Jun
authors.initials: YJ
authors.lastname: Liu
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.forename: Liguo
authors.initials: L
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D018801:CD2 Antigens / Q000032:analysis* / Q000276:immunology; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology / Q000473:pathology* / Q000821:virology; D016022:Case-Control Studies; D002452:Cell Count; D019070:Cell Lineage / Q000276:immunology*; D002648:Child; D003713:Dendritic Cells / Q000276:immunology / Q000473:pathology* / Q000821:virology; D005434:Flow Cytometry; D006678:HIV / Q000502:physiology*; D015658:HIV Infections / Q000276:immunology / Q000473:pathology* / Q000821:virology; D006801:Humans; D008875:Middle Aged; D012367:RNA, Viral / Q000032:analysis / Q000096:biosynthesis; D019562:Viral Load / Q000276:immunology
chemical_list: D018801:CD2 Antigens; D012367:RNA, Viral