Next, we analyzed the mRNA expression differences of m6A regulatory genes in tumor and normal tissues, as well as in different stages of tumors (Fig. 2D), with ELAVL1, FMR1, HNRNPA2B1, IGF2BP3, YTHDC2, YTHDF2, EIF3A, RBMX, RBM15, and WTAP showing stage-specific expression (Fig. S1D). The gene discussed is YTHDF2; the disease is neoplasm.