KEAP1 and serous adenocarcinoma: Similarly, Liew and colleagues reported that serous carcinoma has higher KEAP1 cytoplasmic, NRF2 nuclear and lower E-cadherin membrane positivity than mucinous, endometrioid and clear cell cancers, studying 108 cases (47 serous, 23 mucinous, 13 endometrioid and 25 clear cell).