期刊
JOURNAL OF INFECTIOUS DISEASES
卷 203, 期 6, 页码 773-779出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jiq125
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资金
- National Institute of Allergy and Infectious Diseases (NIAID) Center for HIV/AIDS Vaccine Immunology [U19 AI067854-05]
- NIAID HIV Vaccine Trials Network
Understanding how human genetic variation impacts individual response to immunogens is fundamental for rational vaccine development. To explore host mechanisms involved in cellular immune responses to the MRKAd5 human immunodeficiency virus type 1 (HIV-1) gag/pol/nef vaccine tested in the Step trial, we performed a genome-wide association study of determinants of HIV-specific T cell responses, measured by interferon gamma enzyme-linked immunospot assays. No human genetic variant reached genome-wide significance, but polymorphisms located in the major histocompatibility complex (MHC) region showed the strongest association with response to the HIV-1 Gag protein: HLA-B alleles known to be associated with differences in HIV-1 control were responsible for these associations. The implication of the same HLA alleles in vaccine-induced cellular immunity and in natural immune control is of relevance for vaccine design. Furthermore, our results demonstrate the importance of considering the host immunogenetic background in the analysis of immune responses to T cell vaccines.
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