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CD8+ T Cell Targeting of Tumor Antigens Presented by HLA-E

Iyer, Science Advances. 2024.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11086602/

Researchers have hypothesized that human leukocyte antigen-E (HLA-E)–positive cancer cells could be targeted by HLA-E–restricted CD8+ T cells. In this study, the authors assessed whether major histocompatibility complex E (MHC-E) expression by cancer cells can be targeted for MHC-E–restricted T cell control. Using male rhesus macaques, they found that a cytomegalovirus can be used as a vector to generate specific immune cells that can target cancer cells. The authors conclude that targeting HLA-E with restricted, specific CD8+ T cells could offer a new approach for immunotherapy of prostate cancer. Overall, this study supports the concept of a cancer vaccine. Supported by ORIP (P51OD011092) and NIAID.