Drift of the HIV-1 envelope glycoprotein gp120 toward increased neutralization resistance over the course of the epidemic: a comprehensive study using the most …

M Bouvin-Pley, M Morgand, L Meyer, C Goujard… - Journal of …, 2014 - Am Soc Microbiol
M Bouvin-Pley, M Morgand, L Meyer, C Goujard, A Moreau, H Mouquet, M Nussenzweig
Journal of virology, 2014Am Soc Microbiol
Extending our previous analyses to the most recently described monoclonal broadly
neutralizing antibodies (bNAbs), we confirmed a drift of HIV-1 clade B variants over 2
decades toward higher resistance to bNAbs targeting almost all the identified gp120-
neutralizing epitopes. In contrast, the sensitivity to bNAbs targeting the gp41 membrane-
proximal external region remained stable, suggesting a selective pressure on gp120
preferentially. Despite this evolution, selected combinations of bNAbs remain capable of …
Abstract
Extending our previous analyses to the most recently described monoclonal broadly neutralizing antibodies (bNAbs), we confirmed a drift of HIV-1 clade B variants over 2 decades toward higher resistance to bNAbs targeting almost all the identified gp120-neutralizing epitopes. In contrast, the sensitivity to bNAbs targeting the gp41 membrane-proximal external region remained stable, suggesting a selective pressure on gp120 preferentially. Despite this evolution, selected combinations of bNAbs remain capable of neutralizing efficiently most of the circulating variants.
American Society for Microbiology