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Science. 2004 Jul 23;305(5683):528-32. Epub 2004 Jul 8.

Integrase inhibitors and cellular immunity suppress retroviral replication in rhesus macaques.

Author information

1
Department of Biological Chemistry, Merck Research Laboratories, Post Office Box 4, West Point, PA 19486, USA. daria_hazuda@merck.com

Abstract

We describe the efficacy of L-870812, an inhibitor of HIV-1 and SIV integrase, in rhesus macaques infected with the simian-human immunodeficiency virus (SHIV) 89.6P. When initiated before CD4 cell depletion, L-870812 therapy mediated a sustained suppression of viremia, preserving CD4 levels and permitting the induction of virus-specific cellular immunity. L-870812 was also active in chronic infection; however, the magnitude and durability of the effect varied in conjunction with the pretreatment immune response and viral load. These studies demonstrate integrase inhibitor activity in vivo and suggest that cellular immunity facilitates chemotherapeutic efficacy in retroviral infections.

PMID:
15247437
DOI:
10.1126/science.1098632
[Indexed for MEDLINE]
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