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This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Rights and Permissions Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Turville, S. G. Articles by Cunningham, A. L. Search for Related Content PubMed PubMed Citation Articles by Turville, S. G. Articles by Cunningham, A. L. Related Collections Immunobiology Social Bookmarking                   What's this?  Previous Article  |  Table of Contents  |  Next Article  Blood, 15 October 2001, Vol. 98, No. 8, pp. 2482-2488 IMMUNOBIOLOGY HIV gp120 receptors on human dendritic cells Stuart G. Turville, Jim Arthos, Kelli Mac Donald, Garry Lynch, Hassan Naif, Georgina Clark, Derek Hart, and Anthony L. Cunningham From the Center For Virus Research, Westmead Millennium Institute, Sydney, Australia; National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD; and Mater Medical Research Institute, Brisbane, Australia. Dendritic cells (DCs) are important targets for human immunodeficiency virus (HIV) because of their roles during transmission and also maintenance of immune competence. Furthermore, DCs are a key cell in the development of HIV vaccines. In both these settings the mechanism of binding of the HIV envelope protein gp120 to DCs is of importance. Recently a single C-type lectin receptor (CLR), DC-SIGN, has been reported to be the predominant receptor on monocyte-derived DCs (MDDCs) rather than CD4. In this study a novel biotinylated gp120 assay was used to determine whether CLR or CD4 were predominant receptors on MDDCs and ex vivo blood DCs. CLR bound more than 80% of gp120 on MDDCs, with residual binding attributable to CD4, reconfirming that CLRs were the major receptors for gp120 on MDDCs. However, in contrast to recent reports, gp120 binding to at least 3 CLRs was observed: DC-SIGN, mannose receptor, and unidentified trypsin resistant CLR(s). In marked contrast, freshly isolated and cultured CD11c+ve and CD11cve blood DCs only bound gp120 via CD4. In view of these marked differences between MDDCs and blood DCs, HIV capture by DCs and transfer mechanisms to T cells as well as potential antigenic processing pathways will need to be determined for each DC phenotype. © 2001 by The American Society of Hematology.   CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: P. Jain, S. L. Manuel, Z. K. Khan, J. Ahuja, K. Quann, and B. 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