KCNA2 and cancer: While other potassium voltage-gated genes such as KCNA2, KCNA3, and KCNA5 have been investigated across various cancers—including skin melanoma, uterine corpus endometrial carcinoma, gastric adenocarcinoma, LUAD, and LUSC in-depth studies of KCNA7’s expression in cancer remain lacking (34).