Prevention of vaginal SHIV transmission in rhesus macaques through inhibition of CCR5

MM Lederman, RS Veazey, R Offord, DE Mosier… - Science, 2004 - science.org
MM Lederman, RS Veazey, R Offord, DE Mosier, J Dufour, M Mefford, M Piatak Jr, JD Lifson…
Science, 2004science.org
Topical agents, such as microbicides, that can protect against human immunodeficiency
virus (HIV) transmission are urgently needed. Using a chimeric simian/human
immunodeficiency virus (SHIV SF162), which is tropic for the chemokine receptor CCR5, we
report that topical application of high doses of PSC-RANTES, an amino terminus–modified
analog of the chemokine RANTES, provided potent protection against vaginal challenge in
rhesus macaques. These experimental findings have potentially important implications for …
Topical agents, such as microbicides, that can protect against human immunodeficiency virus (HIV) transmission are urgently needed. Using a chimeric simian/human immunodeficiency virus (SHIV SF162), which is tropic for the chemokine receptor CCR5, we report that topical application of high doses of PSC-RANTES, an amino terminus–modified analog of the chemokine RANTES, provided potent protection against vaginal challenge in rhesus macaques. These experimental findings have potentially important implications for understanding vaginal transmission of HIV and the design of strategies for its prevention.
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