Two toxins, acting on Kv1.1 (KAaH2) and Kv1.3 (KAaH1 that acts on Kv1.1 as well) derived from the Androctonus australis Hector venom, were shown to inhibit glioma proliferation and migration, at least in vitro (Aissaoui et al., 2018). This evidence concerns the gene KCNA1 and central nervous system cancer.