In the tumor mesenchyme, the fraction of CD8+ PD-1+ T cells was higher in the TMB-H and TP53 mutant subtypes compared with that in the NSMP subtype (p = 0.004), yet the proportion of CD8+ PD-1+ T cells in all CD8+ T cells was the highest in the TP53 mutant subtype among all three molecular subtypes, although not significant enough (p = 0.084). Here, CD8A is linked to neoplasm.