In addition, among the proteins expressed in GBM- and CSC-sEVs, we noted 10 proteins, namely ADAR, ELP1, FBRL, HCD2, METTL1, NAT10, PUS7, TRM112, TRM6, and TRMT61A, which are known RNA modifying enzymes regulating gene expression (Table 3 and highlighted in light green in Table S5). This evidence concerns the gene METTL1 and glioblastoma.