CD8A and neoplasm: The anti-PD1 antibody administration did not increase the infiltration of the NY-ESO-1-specific CD8+ T cells into the tumour in NY-ESO-1 S-FLU virus-infected mice (Figure 7B, right), but it was associated with increased expression of CD103 on NY-ESO-1-specific CTLs in TIL (Figure 7B, right).