KCNMA1 and cancer: Among Ca2+-activated K+ channel superfamily members (large-conductance KCa1.1, small-conductance KCa2.1–2.3, and intermediate-conductance KCa3.1), KCa1.1, encoded by KCNMA1, contributes to cancer development, and its amplification positively correlated with high cancer stage, a high histological grade, and poor prognosis [2,3].