Comparative study of Tat vaccine regimens in Mauritian cynomolgus and Indian rhesus macaques: influence of Mauritian MHC haplotypes on susceptibility/resistance to SHIV(89.6P) infection.
Vaccine
; 26(26): 3312-21, 2008 Jun 19.
Article
em En
| MEDLINE
| ID: mdl-18486283
ABSTRACT
Protection afforded by HIV Tat-based vaccines has differed in Indian rhesus and Mauritian cynomolgus macaques. We evaluated native Tat and Ad-HIVtat priming/Tat-boosting regimens in both species. Both vaccines were immunogenic. Only the Ad-tat regimen modestly reduced acute viremia in rhesus macaques after SHIV(89.6P) challenge. Confounding variables uncovered in Mauritian macaques included significant associations of susceptibility to infection with MHC class IB and class II H2 and H5 haplotypes, and resistance to infection with class IB haplotypes H3 and H6. Although protection here was limited, Tat-based vaccines incorporating other HIV components have shown greater efficacy. Combination strategies should be further explored.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Haplótipos
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Antígenos de Histocompatibilidade Classe I
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Antígenos de Histocompatibilidade Classe II
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Síndrome de Imunodeficiência Adquirida dos Símios
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Vacinas contra a AIDS
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Suscetibilidade a Doenças
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Produtos do Gene tat do Vírus da Imunodeficiência Humana
Limite:
Animals
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article