ARID1A and cancer: ARID1A mutations are associated with a wide range of cancers, including ovarian endometrioid/clear-cell carcinomas, pancreatic cancer, gastric carcinoma, esophageal adenocarcinoma, renal carcinoma and breast tumors (Biegel et al., 2014; Wu et al., 2014; Kadoch and Crabtree, 2015; Masliah-Planchon et al., 2015; Takeda et al., 2016).