SLC1A5 and endometrial carcinoma: ASCT2 upregulation has been implicated in several cancer types.20, 21, 22, 23, 24, 25, 26, 27, 28 In this study we have shown that ASCT2 and SNAT1 are upregulated in both the serous and endometrioid subtypes of endometrial carcinoma, compared to normal endometrium.