in the prognosis of prostate cancer.

Our study aimed to investigate the expression and prognostic role of homeobox C6 () in prostate cancer (PCa). Relative expression of at mRNA and protein levels in tissues and cell lines of PCa were measured using quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot analysis, respectively. Association between expression and clinical factors was analyzed by Chi-square test. effects on the proliferation, invasion and metastasis of PCa cells were severally examined through CCK-8 and transwell assays. Relative expressions of at mRNA and protein levels were obviously higher in both PCa tissues and cells than in adjacent non-cancerous tissues and normal human prostate epithelial cells ( < .05). Chi-square test demonstrated that high expression of was significantly associated with PSA concentration, Gleason score and TNM stage ( < .05). The down-regulation of remarkably inhibited the proliferation, migration and invasion of PCa cells. Kaplan-Meier analysis showed that patients with high expression had shorter overall survival than those with low expression (log rank test,  < .001). Up-regulated , in PCa patients, could not only participate in the progression of PCa but also function as an independent prognostic marker for the cancer.