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Two distinct broadly neutralizing antibody specificities of different clonal lineages in a single HIV-1-infected donor: implications for vaccine design.

ABSTRACT: Plasma from a small subset of subjects chronically infected with HIV-1 shows remarkable magnitude and breadth of neutralizing activity. From one of these individuals (CH0219), we isolated two broadly neutralizing antibodies (bnAbs), CH01 and VRC-CH31, from two clonal lineages of memory B cells with distinct specificities (variable loop 1 and 2 [V1V2] conformational specificity and CD4-binding site specificity, respectively) that recapitulate 95% of CH0219 serum neutralization breadth. These data provide proof of concept for an HIV-1 vaccine that aims to elicit bnAbs of multiple specificities.

SUBMITTER: Bonsignori M

PROVIDER: S-EPMC3318651 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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Two distinct broadly neutralizing antibody specificities of different clonal lineages in a single HIV-1-infected donor: implications for vaccine design.

Bonsignori Mattia M Montefiori David C DC Wu Xueling X Chen Xi X Hwang Kwan-Ki KK Tsao Chun-Yen CY Kozink Daniel M DM Parks Robert J RJ Tomaras Georgia D GD Crump John A JA Kapiga Saidi H SH Sam Noel E NE Kwong Peter D PD Kepler Thomas B TB Liao Hua-Xin HX Mascola John R JR Haynes Barton F BF

Journal of virology 20120201 8

Plasma from a small subset of subjects chronically infected with HIV-1 shows remarkable magnitude and breadth of neutralizing activity. From one of these individuals (CH0219), we isolated two broadly neutralizing antibodies (bnAbs), CH01 and VRC-CH31, from two clonal lineages of memory B cells with distinct specificities (variable loop 1 and 2 [V1V2] conformational specificity and CD4-binding site specificity, respectively) that recapitulate 95% of CH0219 serum neutralization breadth. These data ...[more]

PMID: 22301150

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