Identification of a CD4-Binding-Site Antibody to HIV that Evolved Near-Pan Neutralization Breadth.

Huang J, Kang BH, Ishida E, Zhou T, Griesman T, Sheng Z, Wu F, Doria-Rose NA, Zhang B, McKee K, O'Dell S, Chuang GY, Druz A, Georgiev IS, Schramm CA, Zheng A, Joyce MG, Asokan M, Ransier A, Darko S, Migueles SA, Bailer RT, Louder MK, Alam SM, Parks R, Kelsoe G, Von Holle T, Haynes BF, Douek DC, Hirsch V, Seaman MS, Shapiro L, Mascola JR, Kwong PD, Connors M
Immunity. 2016 45 (5): 1108-1121

PMID: 27851912 · PMCID: PMC5770152 · DOI:10.1016/j.immuni.2016.10.027

Detailed studies of the broadly neutralizing antibodies (bNAbs) that underlie the best available examples of the humoral immune response to HIV are providing important information for the development of therapies and prophylaxis for HIV-1 infection. Here, we report a CD4-binding site (CD4bs) antibody, named N6, that potently neutralized 98% of HIV-1 isolates, including 16 of 20 that were resistant to other members of its class. N6 evolved a mode of recognition such that its binding was not impacted by the loss of individual contacts across the immunoglobulin heavy chain. In addition, structural analysis revealed that the orientation of N6 permitted it to avoid steric clashes with glycans, which is a common mechanism of resistance. Thus, an HIV-1-specific bNAb can achieve potent, near-pan neutralization of HIV-1, making it an attractive candidate for use in therapy and prophylaxis.

Published by Elsevier Inc.

MeSH Terms (10)

Antibodies, Neutralizing Antibody Specificity Binding Sites, Antibody CD4-Positive T-Lymphocytes Cell Separation HIV-1 HIV Antibodies HIV Envelope Protein gp120 HIV Infections Humans

Connections (1)

This publication is referenced by other Labnodes entities:

Links