The data showed that the luciferase activity of FUT4 was reduced significantly after co-transfection of wild-type (WT) luciferase reporter constructs and miR-200b mimics, whereas there was little change in activity following co-transfection of MUT luciferase reporter constructs and miR-200b mimics in the two types of breast cancer cells (Figures 3b and c). The gene discussed is FUT4; the disease is breast carcinoma.