RWPE-1, RWPE-2, PC-3 and LNCaP were obtained from American Type Culture Collection (ATCC) in 2013 and re-authenticated in 2016 (Supplemental Document for Review purposes). RWPE-1 and RWPE-2 cells were cultured in KSFM with bovine pituitary extract and epidermal growth factor (ThermoScientific, Waltham, MA), and used passage <21. Primary human benign epithelial cells (PrE) and organoids were grown in PrEGM media (Lonza, ThermoScientific). The PrE cells were established from fresh radical prostatectomy tissues, as previously described19 (link), 44 (link), via UIC Institutional Review Board approved protocols (#12–0331 and 15–1294). PC-3 were cultured in DMEM with 10% fetal bovine serum (FBS) and LNCaP in RPMI with 10% FBS.
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