MECP2 and cancer: We also found a significant correlation between MeCP2 expression and immune subtypes in most cancers, such as BLCA, BRCA, COAD, HNSC, LGG, LIHC, LUAD, LUSC, KIRC, KIRP, OV, PAAD, PRAD, SARC, PCPG, THCA, STAD and UCEC (P < 0.05; Fig. S4).