KCNN4 and neoplasm: More importantly, the expression levels of KCNN4 were not only vital to the tumor-initiating abilities but also to the stemness potentials with the LCSC frequency, which were 1/1, 1/1629, and 1/182 for ov-KCNN4, sh-KCNN4, and lv-ctrl CSCs, respectively (Supplementary Table S2).