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Genotypic Inference of HIV-1 Tropism Using Population-based Sequencing of V3
Published on: December 27, 2010
HIV-1 tropism evolution after short-term maraviroc monotherapy in HIV-1-infected patients
Alejandro Gonzalez-Serna1, María Concepción Romero-Sánchez, Sara Ferrando-Martinez
1Laboratorio de Inmunovirologia, Servicio Enfermedades Infecciosas, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain.
Abstract:
We analyzed the evolution of viral tropism after 8 days of maraviroc monotherapy, i.e., we used the maraviroc clinical test (MCT), in 21 patients with and 14 without virological response to the drug (MCT(+) and MCT(-) patients, respectively). No increases in CXCR4 inferred viral loads (X4IVLs) were observed in MCT(+) patients, while X4IVLs increased only in MCT(-) patients, with X4IVLs of >2 log(10) HIV RNA copies/ml. These results shed light on the evolution of viral tropism under a CCR5 antagonist in vivo.
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