Journal article

Quantification of Simian Immunodeficiency Virus Cytotoxic T Lymphocyte Escape Mutant Viruses

Liyen Loh, Stephen J Kent

AIDS RESEARCH AND HUMAN RETROVIRUSES | MARY ANN LIEBERT, INC | Published : 2008

Abstract

Escape from cytotoxic T-lymphocyte (CTL) pressure is common in HIV-1 infection of humans and simian immunodeficiency virus (SIV) infections of macaques. CTL escape typically incurs a fitness cost as reversion back to wild-type can occur upon transmission. We utilized sequence-specific primers and DNA probes with real-time polymerase chain reaction (PCR) to sensitively and specifically track wild-type and escape mutant viremia at the Mane-A*17-restricted SIV Gag(371379) epitope AF9 in pigtail macaques. The generation of minor escape mutant populations is detected by the real-time PCR 2 weeks earlier than observed using standard sequencing techniques. We passaged the AF9 CTL escape mutant viru..

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University of Melbourne Researchers