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.
Copyright © 2014, American Society for Microbiology. All Rights Reserved.
Publication types
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Research Support, N.I.H., Intramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antibodies, Monoclonal / immunology*
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Antibodies, Neutralizing / immunology*
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Epidemics
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Genetic Drift*
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HIV Antibodies / immunology*
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HIV Envelope Protein gp120 / genetics
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HIV Envelope Protein gp120 / immunology*
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HIV Envelope Protein gp41 / genetics
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HIV Envelope Protein gp41 / immunology
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HIV Infections / epidemiology
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HIV Infections / immunology*
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HIV Infections / virology
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HIV-1 / genetics
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HIV-1 / immunology*
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HIV-1 / isolation & purification
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Humans
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Male
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Mice
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Neutralization Tests
Substances
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Antibodies, Monoclonal
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Antibodies, Neutralizing
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HIV Antibodies
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HIV Envelope Protein gp120
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HIV Envelope Protein gp41
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gp120 protein, Human immunodeficiency virus 1
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gp41 protein, Human immunodeficiency virus 1