It is widely appreciated that the pathophysiology of advanced brain cancer is intimately related to the extent of tumor invasiveness. A prerequisite for comprehensively understanding neuro-oncology is therefore the elucidation of the biochemical and molecular properties of tumor cells that contribute to their invasiveness. An understanding of tumor invasion for central nervous system tumors is crucial since malignant brain tumors are very highly invasive and extensively destroy adjacent neural brain tissue. Moreover, they are angiogenesis-dependent and lead to the death of patients by...