Repeated intravaginal inoculation with cell-associated simian immunodeficiency virus results in persistent infection of nonhuman primates.

Kaizu, Masahiko; Weiler, Andrea M; Weisgrau, Kim L; Vielhuber, Kathleen A; May, Gemma; Piaskowski, Shari M; Furlott, Jessica; Maness, Nicholas J et al. · J Infect Dis · 2006

basic_science · Level V

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Abstract

The goal of the present study was to develop a nonhuman primate model of intravaginal human immunodeficiency virus (HIV) transmission with cell-associated virus. Reproductively mature, cycling cynomolgus macaques with or without chemically induced, transient ulcers of the lower female reproductive tract repeatedly received challenge with a variable amount of in vitro simian immunodeficiency virus mac239-infected peripheral blood mononuclear cells. Persistent viremia was established with surprisingly few infectious lymphocytes containing physiologically relevant quantities of cell-associated virus. This model will be indispensable for the testing of vaccines and topical agents that are aimed toward the prevention of heterosexual transmission of HIV.

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