In the validation phase, we found that C1QA, MARCO, TXNDC15, IGFBP3, TNFRSF10C, TRIM5, LAYN, JAM3, RNF43, PPP1R14A, SPINT2, LGALS4, TOR1AIP1, AGER, CILP, CEACAM21, and IL10RB were significantly associated with PRAD risk. The gene discussed is TXNDC15; the disease is prostate adenocarcinoma.