More importantly, PIIO-1 showed therapeutic efficacy against both GARP+ and GARP- cancers alone or in combination with anti-PD-1 antibody, by preventing T cell exhaustion and enhancing CD8+ T cell migration into the TME in a C-X-C motif chemokine receptor 3 (CXCR3)-dependent manner.888. This evidence concerns the gene CXCR3 and cancer.