METTL3 and urinary bladder cancer: In this study, we analyzed 23 m6A regulatory factors related to bladder cancer, including 2 erasers (ALKBH5, FTO), 13 readers (FMR1, HNRNPA2B1, HNRNPC, IGF2BP1, IGF2BP2, IGF2BP3, YTHDC1, YTHDC2, YTHDF1, YTHDF2, YTHDF3, ELAVL1, LRPPRC), and 8 writers (KIAA1429, METTL14, METTL3, RBM15, RBM15B, WTAP, ZC3H13, CBLL1).