Abstract
Human leukocyte antigen (HLA) alleles have been linked to HIV disease progression and attributed to differences in cytotoxic T lymphocyte (CTL) epitope representation. These findings are largely based on treatment-naive individuals of European and African ancestry. We assessed HLA associations with HIV-1 outcomes in 1,318 individuals from Thailand and found HLA-B∗46:01 (B∗46) associated with accelerated disease in three independent cohorts. B∗46 had no detectable effect on HIV-specific T cell responses, but this allele is unusual in containing an HLA-C epitope that binds inhibitory receptors on natural killer (NK) cells. Unbiased transcriptomic screens showed increased NK cell activation in people with HIV, without B∗46, and simultaneous single-cell profiling of surface proteins and transcriptomes revealed a NK cell subset primed for increased responses in the absence of B∗46. These findings support a role for NK cells in HIV pathogenesis, revealed by the unique properties of the B∗46 allele common only in Asia.
Original language | English |
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Pages (from-to) | 1173-1185.e8 |
Journal | Cell Host and Microbe |
Volume | 30 |
Issue number | 8 |
DOIs | |
State | Published - 10 Aug 2022 |
Externally published | Yes |
Keywords
- CD4 counts
- CITE-seq
- HLA
- KIR
- NK cells
- RNA-seq
- Thailand
- acute HIV infection
- cytotoxic T lymphocytes