1. Immunogenicity of a DNA prime and recombinant adenovirus boost regime significantly varies between rhesus macaques of Chinese and Indian origins.
- Author
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Stahl-Hennig C, Suh YS, Park KS, Sauermann U, Kim KS, Ahn S, Franz M, Schulte R, Stolte-Leeb N, Hunsmann G, and Sung YC
- Subjects
- Animals, Antibodies, Viral blood, Area Under Curve, Cell Proliferation, China, Disease Models, Animal, Enzyme-Linked Immunosorbent Assay veterinary, Immunization methods, India, Interferon-gamma analysis, Neutralization Tests veterinary, Simian Acquired Immunodeficiency Syndrome prevention & control, Simian Acquired Immunodeficiency Syndrome virology, Simian Immunodeficiency Virus genetics, Statistics, Nonparametric, T-Lymphocytes immunology, T-Lymphocytes virology, Vaccines, Synthetic immunology, Immunization veterinary, Macaca mulatta, SAIDS Vaccines immunology, Simian Acquired Immunodeficiency Syndrome immunology, Simian Immunodeficiency Virus immunology, Vaccines, DNA immunology
- Abstract
Background: Due to an ever increasing shortage of rhesus macaques of Indian origin (InR) that have been generally used for preclinical AIDS vaccine trials in non-human primates, demand is rising for Chinese rhesus macaques (ChR). However, the immunogenicity of an AIDS vaccine candidate has not been compared in parallel in both rhesus macaque subspecies., Methods: ChR and InR were immunized with SIV/HIV DNA and adenovirus vaccine and their immune responses to SIV and HIV evaluated., Results: SIV Gag- and Env-specific T-cell responses and SIV-specific lymphoproliferative responses measured in ChR were significantly weaker than those in InR (P < 0.05). By contrast, antibody responses to SIV Env, Tat, and Nef in ChR were stronger than those in InR (P < 0.05)., Conclusions: Immunogenicity of an AIDS vaccine can vary significantly depending on the geographic origin implying genetic differences of macaques. This must be considered when describing and interpreting results of such vaccine studies.
- Published
- 2007
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