The expression correlations between LncRNAs and miRNAs, and the predictive roles of LncRNAs in PCa were examined and listed in Fig. 10A to C. Among the candidate lncRNAs, Z83843.1 and KCNQ1OT1 targeted by miR-19a, AC021078.1, AC016026.1 and FTX targeted by both miR-19a and miR-19b, and SNHG3 and SNHG17 targeted by miR-485 were found to be related to the OS of PCa patients. The gene discussed is SNHG17; the disease is posterior cortical atrophy.