MECP2 and cancer: High expression of MeCP2 was associated with tumor stage in cancers including CHOL, HNSC, KIRC, LIHC, and PAAD (P < 0.05) (Fig. S2A) and linked to histological grade in HNSC, KIRC, LGG, and STAD (P < 0.05) (Fig. S2B).