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Cell migration was assessed 24 h after the exosomes harvested from human pulp were added to mesenchymal stem cells (MSCs). Quantitative results are presented (A). Exosomes (B) attracted significantly more stem cells compared to the negative control (E). This positive effect of exosomes was enhanced when they were combined with the fibrin gel (D) in comparison to fibrin gel alone (C). Scale bar represents 100 µm. * p < 0.05.
