Through genetic analyses, GBM can now be classified into three molecular subtypes (classical, mesenchymal, proneural) on the basis of aberrations or expression levels of certain genes, including epidermal growth factor receptor (EGFR), PDGFR, NF1, and the receptor tyrosine-protein kinase ERBB2 [6,16]. This evidence concerns the gene EGFR and glioblastoma.