International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(22), С. 12309 - 12309
Опубликована: Ноя. 16, 2024
Cancer immunotherapy has emerged as an effective, personalized treatment for certain patients, particularly those with hematological malignancies. However, its efficacy in breast cancer been marginal-perhaps due to cold, immune-excluded, or immune-desert tumors. Natural killer T (NKT) cells play a critical role immune surveillance and are reduced patients. Thus, we hypothesized that NKT could serve surrogate marker function. In order assess which patients would likely benefit from cell-based therapies, have developed quantitative method rapidly function using stimulation artificial antigen presenting followed by real-time PCR IFN-γ. We observed significant reduction the percentage of circulating compared healthy donors; however, majority had functional cells. When BC highly cells, indicated high IFN-γ induction, little no following there was difference cell number between groups, suggesting loss more impact than physical this subpopulation addition, assessed tumor-infiltrating lymphocytes PD-L1 expression within tumor microenvironment low responders. Further characterization gene signatures these groups identified concomitant decrease induction TNFα, LAG3, LIGHT next investigated mechanisms cancers suppress NKT-mediated anti-tumor responses. found secrete immunosuppressive lipids, commonly prescribed medications modulate lipid metabolism, can reduce growth restore
Язык: Английский