CCL4 and bladder transitional cell carcinoma: Matching with these cancer-promoting roles of the CCL4, the current study reports a positive correlation between CKN2A alteration and the expression of CCL4 in 10 tumors, namely BLCA, GBM, HNSC, LUAD, LUSC, MESO, PAAD, READ, SKCM, and STAD.