RRM2 and posterior cortical atrophy: All up-regulated (NCAPG, MKI67, CCNA2, CCNB1, TPX2) and down-regulated (CDK1, CCNB2, AURKA, UBE2C, BUB1B, CENPF, RRM2) genes were expressed significantly higher in aggressive PCa (Gleason score > 7) tissues.