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bioRxiv · 10.1101/2020.02.20.957274

Limited evolution despite years of measurable viremia in a cART-treated seronegative HIV-1 positive individual

Abstract

Understanding the role that antibodies play in controlling HIV-1 infection and in the dynamics that underpin the formation of the HIV-1 reservoir are important steps towards combatting this global disease. To address these gaps, we performed whole-genome, deep sequence analysis of longitudinal plasma HIV-1 samples from an individual who failed to develop detectable anti-HIV-1 antibodies for 4 years post infection. These analyses reveal limited evolution despite months of measurable viremia during treatment with cART. We used a mathematical model to simultaneously analyse the viral and evolutionary dynamics of this unique individual. We propose a role for antibodies in reducing viral infectivity and demonstrate how our data are consistent with a theory of rapid activation of latently infected cells prior to effective viral suppression. Our study supports and elucidates a recent finding that although the latent reservoir persists for years once virus is effectively suppressed, prior to suppression, viral strains within the reservoir turn over rapidly. The implications for a cure are significant.

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Fryer, H. R., Raghwani, J., van Marle, G., Golubchi, T., Grove, J., Lythgoe, K.. 2020-02-21. Limited evolution despite years of measurable viremia in a cART-treated seronegative HIV-1 positive individual. https://doi.org/10.1101/2020.02.20.957274

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