XKR8 and cancer: The other six genes (GSG1 like (GSG1L), crumbs cell polarity complex component 1 (CRB1), XK-related 8 (XKR8), zinc finger protein 680 (ZNF680), zinc finger protein 284 (ZNF284), and zinc finger protein 780B (ZNF780B)) are not mentioned in the cancer research area until now.