In vivo gp41 antibodies targeting the 2F5 monoclonal antibody epitope mediate human immunodeficiency virus type 1 neutralization breadth.


Journal Article

The broadly neutralizing human monoclonal antibodies (MAbs) 2F5 and 4E10, both targeting the highly conserved human immunodeficiency virus type 1 (HIV-1) envelope membrane proximal external region (MPER), are among the MAbs with the broadest heterologous neutralizing activity and are of considerable interest for HIV-1 vaccine development. We have identified serum antibodies from an HIV-infected subject that both were broadly neutralizing and specifically targeted MPER epitopes that overlap the 2F5 epitope. These MPER-specific antibodies were made 15 to 20 months following transmission and concomitantly with the development of autoantibodies. Our findings suggest that multiple events (i.e., genetic predisposition and HIV-1 immune dysregulation) may be required for induction of broadly reactive gp41 MPER antibodies in natural infection.

Full Text

Duke Authors

Cited Authors

  • Shen, X; Parks, RJ; Montefiori, DC; Kirchherr, JL; Keele, BF; Decker, JM; Blattner, WA; Gao, F; Weinhold, KJ; Hicks, CB; Greenberg, ML; Hahn, BH; Shaw, GM; Haynes, BF; Tomaras, GD

Published Date

  • April 2009

Published In

Volume / Issue

  • 83 / 8

Start / End Page

  • 3617 - 3625

PubMed ID

  • 19193787

Pubmed Central ID

  • 19193787

Electronic International Standard Serial Number (EISSN)

  • 1098-5514

Digital Object Identifier (DOI)

  • 10.1128/JVI.02631-08


  • eng

Conference Location

  • United States