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Western blot assay of STAT3 protein in human ovarian cancer cells. A: SKOV3 cells were treated with either 2 μg of pSliencer 2.1-U6 vector stat3 siRNA or scrambled siRNA vector for 72 h. B: Quantification of STAT3 protein from three separate experiments, which was normalized by that of β-actin. (*P<0.05 vs controls)
