highly significantp < 0.0001
We analyzed the expression of PD-1 on T cells ( Figure 4 E) and detected highly significant increased frequencies of PD-1-expressing CD8+ and CD4+ T cells in the tumor ( p < 0.0001).
We analyzed the expression of PD-1 on T cells ( Figure 4 E) and detected highly significant increased frequencies of PD-1-expressing CD8+ and CD4+ T cells in the tumor ( p < 0.0001).