HIV-1 genetic diversity and divergence and its correlation with disease progression among antiretroviral naïve recently infected individuals
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HIV-1 genetic diversity evolution was deeply characterized during the first year of infection among recently-infected patients using deep sequencing technology and correlated with disease progression surrogate markers. RNA and DNA samples from twenty-five individuals (13 female) encoding the protease and reverse transcriptase regions of the pol gene, and the V3 region of the env gene were evaluated at recent infection and during established infection. Infection by a unique HIV-1 strain was inferred in 70.1% of the individuals, with no differences between genders. Infections by multiple strains were associated with higher viral loads and faster CD4+ T cell declines. Either low or high levels of viral loads accompanied low levels of genetic diversity and lower selective pressure. With massive sequence data from 3 distinct genomic HIV-1 regions from plasma and PBMCs over time, we propose a model for HIV-1 genetic diversity, which correlates to basal viral loads of patients.
Leda AR, Hunter J, Oliveira UC, Junqueira-de-Azevedo ILM, Kallas EG., Sucupira MCA, et al. HIV-1 genetic diversity and divergence and its correlation with disease progression among antiretroviral naïve recently infected individuals. Virology. 2020 Feb;541:13-24. doi:10.1016/j.virol.2019.11.006Get.
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