The leading edge genes for various cancers were ABHD2, ADCY7, ADCY9, AKT3, ATP1A1, ATP2B1, CHRM2, CREB1, CREB3L2, CREBBP, EP300, F2R, GABBR1, GIPR, GLI3, GRIA1, NCOA2, NFKB1, PPARA, SSTR1, TGFB1 (Fig. 2B). Here, CREB1 is linked to cancer.