EGF and glioblastoma: Cell speeds have been reported to be in the range of 39–45 μm/h in 2D barrier-free culture condition and 15–20 μm/h in 3D glioblastoma cell culture in the absence/presence of EGF-stimulation (Kim et al., 2008), 15–25 μm/h in glioblastoma cells with/without α-actinin isoforms (Sen et al., 2009), 15–48 μm/h for cells embedded in collagen I matrix (Kaufman et al., 2005).