PROS1 and glioblastoma: After the appropriate EV characterization, MS analysis revealed the distinctive expression of inflammatory proteins, for some of which mRNA data were obtained indicating their belonging to the family of the complement and the coagulation, such as vWF, FCGBP (Fc gamma binding protein), C3, Protein S (PROS1), and serpin family E member 1 (SERPINE1), in the nanoparticles from GBM patients.