Single HIV mutation induces distinct T cell immune responses

The research focused on a mutation that is very frequently found in individuals having the human leukocyte antigen HLA-A*24:02, which is estimated to be in approximately 70% of the Japanese population, and revealed that one mutation produced two outcomes. During HIV/CTL co-evolution, the mutation induced a new T-cell repertoire in one RF10 mutant epitope but not in the RW8 mutant epitope. The research clarified the coadaptation between a single HIV-1 mutation and T cells.
"This study demonstrated that only a single mutation selected by T cells produced 2 different outcomes in T cell adaptation suggesting a more complex co-evolution between HIV and T cell in the body," said Professor Masafumi Takiguchi of Kumamoto University, leader of the research project. "This finding will contribute to the development of an effective T cell-mediated AIDS vaccine in the future."
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