KCNMA1 and glioblastoma: While the importance of the intermediate conductance K+ channel in GBM progression has been recently summarized in several works (Catacuzzeno et al., 2012; D’Alessandro et al., 2018; Liu et al., 2019), the aim of this review is to underline the contributions of BK channels and Kir4.1 channels on GBM invasiveness, focusing on their biophysical properties and their osmo-electric effect at the RMP in GBM cells.