KCNK15 and Ventricular arrhythmia: While KCNK17 channels expressed in human heart atrial tissue [36] represent potential therapeutic targets to treat atrial and ventricular arrhythmias [37], to the best of our knowledge, our study is the first to report dysregulated expression of KCNK15 and KCNK17 mRNA and protein in HCC tissues.