The promoter region of adenomatous polyposis coli (APC) has been found to be frequently methylated in prostate cancer. However, the prognostic role of APC methylation in prostate cancer was still debated. We performed a meta-analysis by searching PubMed and EMBASE databases. Pooled hazard ratios (HRs) and corresponding 95% confidence intervals (CI) were calculated. Seven studies (1227 patients) were included in this study. After calculation, the overall HR was 1.74 (95% CI: 1.31-2.31), implicating that APC methylation has an unfavorable impact on biochemical recurrence of prostate cancer. A subgroup analysis was performed with detection method, combined HR was 1.53 (95% CI: 1.19-1.96) for Methylation-Specific PCR (MSP), and 2.08 (95% CI: 1.18-3.64) for quantitative Methylation-Specific PCR (qMSP). Another subgroup analysis was conducted according to regions of the patients, combined HR was 2.02 (95% CI: 1.18-3.49) for North America, and 1.64 (95% CI: 1.14-2.36) for European. In conclusion, APC methylation is associated with biochemical recurrence of patients with prostate cancer.
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