(A Western blot analysis for protein levels of m6A methyltransferases (METTL3 and METTL14) and demethylases (ALKBH5 and FTO) in P493-6 cells treated with Tet for 0h, 24h, 48h and 72h (A) β-actin serves as loading controls. Data are representative of at least three independent experiments. 