Through the CellMiner database, a significant association was found between CCNL2 expression and 22 drug sensitivities (Additional file 7: Table S5), and the top nine drugs are shown in Fig. 7C. Moreover, we explored CMap to identify anti-PCa micromolecular drugs based on the differentially expressed genes between CCNL2high and CCNL2low patients. Here, CCNL2 is linked to posterior cortical atrophy.