Methylation of ras association domain protein 10 (RASSF10) promoter negative association with the survival of gastric cancer.

Objective: The present study was conducted to elucidate the prognostic prediction value of the methylation of the RASSF10 promoter in gastric cancer (GC). Methods: A total of 300 patients with GC revealed the methylation degrees of the DNA of the RASSF10 promoter. Methylation-specific PCR (MSP) analysis was performed to qualitatively detect the methylated degrees of the DNA of the RASSF10 promoter of 300 patients with GC. Associations between molecular, clinicopathological and survival data were analyzed. Results: The protein and mRNA expressions of RASSF10 in GC tissues were lower than those in normal gastric mucosal tissues. In the MSP analysis cohort, patients with methylated RASSF10 promoter exhibited significantly shorter median OS than those with unmethylated RASSF10 promoter (P < 0.001). Multivariate survival analysis results showed that methylated RASSF10 promoter was an independent predictor of the survival of patients with GC. Conclusions: The methylation of the RASSF10 promoter could be applied for the clinical prediction of the prognosis of GC.