Fig. 5From: Exosomes loaded with ultrasmall Pt nanoparticles: a novel low-toxicity alternative to cisplatinIn vivo results. A Tumor size evolution for the control groups and the four treated groups measured with a caliper. Arrows indicate the time points for the IV or IT injections. B Ki-67 immunohistochemical staining of tumors from the different groups. A decrease in Ki-67 positive cells is observed in both treated groups compared with the non-treated one (control group)Back to article page