Cells were transfected using Lipofectamine Plus (Thermofisher) with PSA-luciferase [48 (link)], MMTV-luciferase or PPRE-luciferase, and pRL-SV40 (Promega) as a control. Gene specific or negative control siRNA (Qiagen) was transfected together with the plasmids when applicable. Cells were transferred to a 96-well plate 24 hours after transfection and treated with the appropriate drugs dissolved in media supplemented with charcoal-stripped serum for another 24 hours. Luciferase activity was assayed 24 hours after treatment using the dual-luciferase reporter assay system (Promega). Student’s t-test (two-sided and equal variance) was performed and association was considered significant when p < 0.05 and indicated by an asterisk.