METTL3 has been reported to exert its oncogenic role in bladder cancer by regulating the maturation of miR-146a-5p in an m6A-dependent manner, wherein METTL3 knockdown led to an accumulation of pri-miR-146a and thereby reduced the expression of mature miR-146a-5p [34]. Here, METTL3 is linked to urinary bladder cancer.