SK4 is expressed in different cancer types, including glioma [347], glioblastoma [348], breast [349], prostate [350], lung [351], hematologic [352], melanoma [353], colorectal [354], renal carcinoma [355], brain tumors [326], pancreas [356], and papillary thyroid [357], thereby controlling cancer hallmarks [358,359,360]. Here, KCNN4 is linked to cancer.