For example, in LUSC, ESCA, STAD, CHOL, DLBC, and PCPG tumors, the expression of CDK6 is not related to the infiltration and distribution of most immune cells, but in BLCA, TGCT, BRCA, KIRC, LAML, and ACC tumors, the relationship is significant (Figure 7A). Here, CDK6 is linked to bladder transitional cell carcinoma.