Fig. 6.

Characteristics of CD160⁺ tumor-infiltrating CD8⁺ T cells. a CD160⁺ cell frequencies in tumor-infiltrating CD8⁺ T cells, compared with that in circulating CD8⁺ T cells from the same patients. b The correlation between the percent of CD160⁺ CD8⁺ T cells in tumor vs. that in blood. c–f CD160⁺ and CD160⁻ tumor-infiltrating CD8⁺ T cells were sorted and the transcript levels of PD-1, TIM-3, IFN-γ, and IL-2 were examined using PCR. *p < 0.05. **p < 0.01. ***p < 0.001