KCNMA1 and urinary bladder carcinoma: Among the BK channel modulators, quercetin can be considered a potent activator according to the dedicated studies on different BK channel variants, i.e., BK channels in the human bladder carcinoma cell line [38], coronary smooth muscle cells [69], murine smooth muscles (ileal myocytes) using liposomal quercetin [39], mitochondrial BK (mitoBK) channels from human endothelial cells EA.hy926 [40], and mitoBK in human bronchial epithelial cells (HBE) [42].