Strategies for eliciting HIV-1 inhibitory antibodies.


Journal Article (Review)

PURPOSE OF REVIEW: Major roadblocks persist in the development of vaccines that elicit potent neutralizing antibodies targeting diverse HIV-1 strains, similar to known broadly neutralizing HIV-1 human monoclonal antibodies. Alternatively, other types of anti-HIV-1 envelope antibodies that may not neutralize HIV-1 in traditional neutralization assays but have other anti-HIV-1 activities (hereafter termed HIV-1 inhibitory antibodies) can be elicited by current vaccine strategies, and numerous studies are exploring their roles in preventing HIV-1 acquisition. We review examples of strategies for eliciting potentially protective HIV-1 inhibitory antibodies. RECENT FINDINGS: Heterologous prime-boost strategies can yield anti-HIV immune responses, although only one (canarypox prime, Env protein boost) has been tested and shown positive results in an efficacy trial (RV144). Although the immune correlates of protection are as yet undefined, the reduced rate of acquisition without a significant effect on initial viral loads or CD4 T-cell counts, have raised the hypothesis of an RV144 vaccine-elicited transient protective B-cell response. SUMMARY: In light of the RV144 trial, there is a critical need to define the entire functional spectrum of anti-HIV-1 antibodies, how easily each can be elicited, and how effective different types of antibody effector mechanisms can be in prevention of HIV-1 transmission.

Full Text

Duke Authors

Cited Authors

  • Tomaras, GD; Haynes, BF

Published Date

  • September 2010

Published In

Volume / Issue

  • 5 / 5

Start / End Page

  • 421 - 427

PubMed ID

  • 20978384

Pubmed Central ID

  • 20978384

Electronic International Standard Serial Number (EISSN)

  • 1746-6318

Digital Object Identifier (DOI)

  • 10.1097/COH.0b013e32833d2d45


  • eng

Conference Location

  • United States