miR-124 does not target the AR 3'UTR in breast cancer cells. (a) miR-124 expression in MCF7 and T47D cells was assessed by qPCR following transfection with pcDNA 3.1(+)-mir-124. Expression is shown relative to RNU6B and dots represent the mean ± standard deviation of two independent experiments. (b) Luciferase reporter activities relative to the Renilla internal control ± the standard error of the mean (SEM) are shown. Data were generated from three independent experiments. **P = 0.007.