To confirm the positive feedback loop between EZH2 and Et-miRNAs and whether the feedback could maintain high EZH2 expression in ovarian cancer, Et-miRNAs expression in SKOV3sg87-13# and SKOV3LV-EZH2 cancer cells were manipulated by transfection with miRNA inhibitors or mimics. Here, EZH2 is linked to ovarian carcinoma.