BUB1, KIF2C, CDC20, and PBK were significantly highly expressed in tumor tissues, the older age group, and advanced stages of PCa (p < 0.05, Figure 9), which is in accordance with the results displayed in Figure 2, indicating that BUB1, KIF2C, CDC20, and PBK might promote the occurrence and progress of PCa. This evidence concerns the gene CDC20 and neoplasm.