The control of cancer cell proliferation in different experimental models is often modulated by voltage gated K+ channels (VGKCs; in particular Kv1.3, Kv10.1 and Kv11.1), Ca2+-dependent K+ (KCa) channels (especially KCa1.1 and KCa3.1) and two-pore (K2p) channels (in particular K2p2.1). Here, KCNH2 is linked to cancer.