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. 1992 Feb;66(2):750–756. doi: 10.1128/jvi.66.2.750-756.1992

Three epitopic peptides of the simian immunodeficiency virus Nef protein recognized by macaque cytolytic T lymphocytes.

I Bourgault 1, A Venet 1, J P Levy 1
PMCID: PMC240774  PMID: 1370557

Abstract

In 8 of 12 experimentally infected macaques, the Nef SIVmac 251 protein was recognized by cytolytic T lymphocytes (CTL) and appeared strongly immunogenic. Here, we report experiments which have been performed by using synthetic peptides to precisely determine the epitopes recognized by macaque CTL. Three epitopes of the Nef protein have been defined as CTL targets in three macaques. The epitopic peptides are located in the central region of the protein, and all of them show high homology with peptides of the human immunodeficiency virus type 1 Nef protein recognized by human CTL in association with several human leukocyte antigen molecules. These results suggest that (i) the Nef protein is a good candidate for vaccination not only because of its early expression but also because of its high immunogenicity for CTL, (ii) long peptides covering the central region of this protein could be used as vaccines and could cross the major histocompatibility complex barrier in a large variety of individuals, and (iii) the rhesus macaque is a good animal model in which to test for protection by CTL.

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Selected References

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