CXCL8 and glioblastoma: NF-κB signaling promotes glioblastoma cell invasion by transactivating the expression of several genes encoding molecules promoting cell motility, including fibroblast growth factor inducible 14, a member of the tumor necrosis factor (TNF) receptor superfamily, interleukin-8 (IL-8), monocyte chemoattractant protein 1, and CXC chemokine receptor 4, to name a few [47,48].