Induction of balance and breadth in the immune response is beneficial for the control of SIVmac239 replication in rhesus monkeys - 07/08/11
Corresponding author. Guangzhou Institute of Biomedicine and Health (GIBH), Chinese Academy of Sciences, 190 Kai Yuan Avenue, Science Park, Guangzhou 510530, China. Tel.: +86 20 32015295; fax: +86 20 32015299.Summary |
Objectives |
The aim of this study was to induce cellular and humoral responses with enhanced breadth and more balanced magnitude as a possible approach for an effective HIV vaccine.
Methods |
All nine of the SIVmac239 genes (gag, pol, env, nef, vif, vpx, vpr, rev and tat) were optimized for mammalian expression, synthesized and cloned into recombinant adenovirus type 5 (Ad5). These vectors were used as a vaccine regimen, and the immunogenicity and immune protection of this regimen was assessed in murine and macaques.
Results |
A vaccine regimen including all nine genes of the SIVmac239 virus was developed, and it was demonstrated that in contrast to single antigen vaccination, the total SIV antigen regimen more effectively elicited the balanced and broad immune responses in murine and macaques. Moreover, the responses afforded effective immune control against infection and replication of the highly pathogenic SIVmac239.
Conclusions |
Induction of balance and breadth in the immune response is beneficial in controlling SIVmac239 replication in rhesus monkeys. This study provides insight for the future development of an effective HIV vaccine.
Le texte complet de cet article est disponible en PDF.Keywords : HIV vaccine, Immune balance, Immune breadth, Protection, SIVmac239
Plan
Vol 60 - N° 5
P. 371-381 - mai 2010 Retour au numéro
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