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- W2014281666 abstract "Background Multiple HLA class I alleles have been shown to influence both HIV-1 transmission and viral load. In transmission pairs, viral loads of acutely infected partners correlate with viral loads (VL) of their chronically infected donors. This correlation becomes highly significant after adjustment for host factors known to modulate viral load. In addition, we have previously demonstrated that transmission of a virus containing multiple HLA-I associated polymorphisms resulted in a lower set point VL in Zambian linked recipients. These studies imply that transmitted viral characteristics play a role in defining early HIV-1 pathogenesis, and it will be important for vaccine development to understand which viral characteristics are responsible for this. Methods We investigated the role that the in vitro replicative capacity (RC) of the transmitted Gag plays in defining HIV-1 clinical parameters, by cloning gag genes from the founder virus in newly infected partners of 149 epidemiologically linked transmission pairs i nto the subtype C, R5 tropic MJ4 provirus. Results We observed a statistically significant positive correlation between the RC of Gag-MJ4 chimeras and set point VL in seroconverters (P=0.013). The RC of the transmitted Gag also correlated (P=0.025) to the viral load in the chronically infected donor, pointing to RC as the major viral characteristic responsible for the link between donor and linked recipient viral loads. The long term clinical benefit associated with the transmission of attenuated viruses was investigated by performing a Kaplan Meier analysis of time to CD4+ count less than 350. Individuals infected with attenuated gag sequences (RC 2) replicating viruses (P = 0.034)." @default.
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- W2014281666 date "2012-09-01" @default.
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- W2014281666 title "Impact of transmitted CTL escape mutations on replicative capacity and HIV pathogenesis in early infection" @default.
- W2014281666 doi "https://doi.org/10.1186/1742-4690-9-s2-o57" @default.
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