KDM4B and posterior cortical atrophy: We examined the expression of KDM4B in immortalized normal prostate epithelial cells (PZ-HPV-7 and RWPE-1), AR-positive PCa cells (LNCaP), AR-positive CRPC cells (C4-2, C4-2B, and CWR22Rv1), and AR-negative PCa cells (PC-3 and DU-145).