ABCG2 and endometrial adenosquamous carcinoma: MTE-319 is established from primary adenosquamous endometrial carcinoma containing both malignant glandular and malignant squamous components [46], and EN is established from stage IIIC of primary endometrium carcinoma, showing that ABCG2 gene expression probably displays various stemness capacity in different types of endometrial carcinoma.