FOXF2 and Familial prostate cancer: To further confirm the higher expression of FOXF2 in the TZ stroma, we FACS-isolated the Lin(CD45CD31CD235a)-Trop2- TZ and PZ stromal cells from 7 pathologist-verified fresh benign prostate tissues from prostate cancer patients who had undergone radical prostatectomy and examined the expression of FOXF2 by qRT-PCR.