DDX3X and cancer: Available data show that male bias to many cancers is frequently associated with six genes that escape or variably escape from XCI ATP-dependent helicase X-linked helicase II (ATRX), connector enhancer of kinase suppressor of Ras-2 (CNKSR2), dead-box helicase 3 X-linked (DDX3X), histone demethylase 5 C (KDM5C), histone demethylase 6 A (KDM6A), and melanoma antigen gene member C3 (MAGEC3).