KCND2 upregulation might be an independent indicator of poor survival in gastric cancer

AIM: We aimed to investigate the expression of voltage-gated potassium channels KCND1/KCND2/KCND3 in gastric cancer (GC) and normal stomach tissues and to investigate the prognostic value of the upregulated gene KCND2. PATIENTS & METHODS: A retrospective analysis was performed using data from large available databases. RESULTS: KCND2 was significantly upregulated at the mRNA and protein levels in GC compared with that in normal stomach tissues. High KCND2 RNA expression was independently associated with shorter overall survival (HR: 1.634, 95% CI: 1.135-2.352; p = 0.008) and recurrence-free survival (HR: 2.644, 95% CI: 1.438-4.863; p = 0.002). Data mining in the Kaplan-Meier plotter confirmed the prognostic value of KCND2. CONCLUSION: KCND2 upregulation is a valuable prognostic biomarker in GC patients, in terms of overall survival and recurrence-free survival.