There were also 5 KLF5K369Q-downregulated and NTZ-upregulated genes whose lower expression levels in human prostate cancers were also significantly associated with worse overall survival, including TMPRSS2, CALB1, SPOCK2, COL4A4, and COL4A3 (Fig. 6a). This evidence concerns the gene COL4A3 and prostate carcinoma.