The role of exosomes in tumor progression has been previously described in the literature, for example through the exosome mediated exchange of RNA between glioblastoma and endothelial cells [73], oncogenic variant III epidermal growth factor receptor (EGFRyIII) between glioblastoma cells [74], and oncogenic DNA sequences and retrotransposon elements between medulloblastoma and endothelial cells [75]. This evidence concerns the gene EGFR and glioblastoma.