Neutralizing antibodies in sera from macaques infected with chimeric simian-human immunodeficiency virus containing the envelope glycoproteins of either a laboratory-adapted variant or a primary isolate of human immunodeficiency virus type 1.


Journal Article

The magnitude and breadth of neutralizing antibodies raised in response to infection with chimeric simian-human immunodeficiency virus (SHIV) in rhesus macaques were evaluated. Infection with either SHIV-HXB2, SHIV-89.6, or SHIV-89.6PD raised high-titer neutralizing antibodies to the homologous SHIV (SHIV-89.6P in the case of SHIV-89.6PD-infected animals) and significant titers of neutralizing antibodies to human immunodeficiency virus type 1 (HIV-1) strains MN and SF-2. With few exceptions, however, titers of neutralizing antibodies to heterologous SHIV were low or undetectable. The antibodies occasionally neutralized heterologous primary isolates of HIV-1; these antibodies required >40 weeks of infection to reach detectable levels. Notable was the potent neutralization of the HIV-1 89.6 primary isolate by serum samples from SHIV-89.6-infected macaques. These results demonstrate that SHIV-HXB2, SHIV-89.6, and SHIV-89.6P possess highly divergent, strain-specific neutralization epitopes. The results also provide insights into the requirements for raising neutralizing antibodies to primary isolates of HIV-1.

Full Text

Duke Authors

Cited Authors

  • Montefiori, DC; Reimann, KA; Wyand, MS; Manson, K; Lewis, MG; Collman, RG; Sodroski, JG; Bolognesi, DP; Letvin, NL

Published Date

  • April 1998

Published In

Volume / Issue

  • 72 / 4

Start / End Page

  • 3427 - 3431

PubMed ID

  • 9525675

Pubmed Central ID

  • 9525675

International Standard Serial Number (ISSN)

  • 0022-538X


  • eng

Conference Location

  • United States