Journal
NATURE IMMUNOLOGY
Volume 3, Issue 10, Pages 975-983Publisher
NATURE AMERICA INC
DOI: 10.1038/ni841
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- PHS HHS [R0140880] Funding Source: Medline
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The ability of HIV-1 to use dendritic cells (DCs) for transport and to transfer virus to activated T cells in the lymph node may be crucial in early HIV-1 pathogenesis. We have characterized primary DCs for the receptors involved in viral envelope attachment and observed that C-type lectin receptor (CLR) binding was predominant in skin DCs, whereas binding to emigrating and tonsil DCs was CD4-dependent. No one CLR was solely responsible for envelope binding on all skin DC subsets. DC-SIGN (DC-specific ICAM-3-grabbing nonintegrin) was only expressed by CD14(+)CD1a(lo) dermal DCs. The mannose receptor was expressed by CD1a(hi) and CD14(+C)D1a(lo) dermal DCs, and langerin was expressed by Langerhans cells. The diversity of CLRs able to bind HIV-1 in skin DCs may reflect their ability to bind a range of microbial glycoproteins.
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