[HTML][HTML] Diversity of receptors binding HIV on dendritic cell subsets

SG Turville, PU Cameron, A Handley, G Lin… - Nature …, 2002 - nature.com
SG Turville, PU Cameron, A Handley, G Lin, S Pöhlmann, RW Doms, AL Cunningham
Nature immunology, 2002nature.com
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 …
Abstract
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+CDlalo dermal DCs. The mannose receptor was expressed by CD1ahi and CD14+CDlalo 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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