JVI Figure table search 04
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Naif, H. M.
Right arrow Articles by Cunningham, A. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Naif, H. M.
Right arrow Articles by Cunningham, A. L.

 Previous Article  |  Next Article 

J Virol, January 1998, p. 830-836, Vol. 72, No. 1
0022-538X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

CCR5 Expression Correlates with Susceptibility of Maturing Monocytes to Human Immunodeficiency Virus Type 1 Infection

Hassan M. Naif,1,* Shan Li,1 Mohammed Alali,1 Andrew Sloane,1 Lijun Wu,2 Mark Kelly,3 Garry Lynch,1 Andrew Lloyd,3 and Anthony L. Cunningham1

Molecular Pathogenesis Laboratory, Centre for Virus Research, Westmead Institutes of Health Research, The University of Sydney, and National Centre for HIV Virology Research,1 School of Pathology, The University of New South Wales, Sydney,3 Australia, and LeukoSite Inc., Cambridge, Massachusetts 021422

Received 13 June 1997/Accepted 24 September 1997

The chemokine receptor CCR5 and to a lesser extent CCR3 and CCR2b have been shown to serve as coreceptors for human immunodeficiency virus type 1 (HIV-1) entry into blood- or tissue-derived macrophages. Therefore, we examined the expression of the chemokine receptors CCR1, CCR2b, CCR3, CCR5, and CXCR4 as RNAs or as membrane-expressed antigens in monocytes maturing into macrophages and correlated these results with the susceptibility of macrophages to HIV-1 infection, as measured by their concentrations of extracellular p24 antigen and levels of intracellular HIV DNA by quantitative PCR. There was little change in levels of CCR1, CCR2b, and CCR5 RNAs. CCR3 RNA and surface antigen were undetectable throughout maturation of adherent monocytes over 10 days. CXCR4 RNA and membrane antigen were strongly expressed in newly adherent monocytes, but their levels declined at day 7. The amounts of CCR5 RNA remained stable, but the amounts of CCR5 antigen increased from undetectable to peak levels at day 7 and then declined slightly at day 10. Levels of susceptibility to laboratory (HIV-1BaL) and clinical strains of HIV-1 showed parallel kinetics, peaking at day 7 and then decreasing at days 10 to 14. The concordance of levels of HIV DNA and p24 antigen suggested that the changes in susceptibility with monocyte maturation were at or immediately after entry and correlated well with CCR5 expression and inversely with CXCR4 expression.

* Corresponding author. Mailing address: Molecular Pathogenesis Laboratory, Centre for Virus Research, WIHR, Level 2, Clinical Sciences Bldg., Westmead Hospital, The University of Sydney, Westmead, New South Wales 2145, Australia. Phone: (61-2) 9845 6311/57491. Fax: (61-2) 9845 8300. E-mail: hassann{at}westmed.wh.usyd.edu.au.




This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Mol. Cell. Biol. Microbiol. Mol. Biol. Rev.
Clin. Vaccine Immunol. ALL ASM JOURNALS

Copyright © 1998 by the American Society for Microbiology. All rights reserved.