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miRNA-148a regulated ER-α expression in MCF7 cells. miRNA-148a mimic and inhibitor were transfected to MCF7 cells. At 48 h after transfection, miRNA-148a mimic increased ER-α expression whereas the miRNA-148a inhibitor decreased ER-α expression. The finding was confirmed at the (A) mRNA and (B) protein level. *P<0.05, ***P<0.001. miRNA, micro RNA; ER-α, estrogen receptor-α.
