Fig. 5: Schematic illustration of the signaling pathways of cell-derived exosomes for improving chronic wound healing.

huMSC-exos: human umbilical cord mesenchymal stem cell-derived exosomes; EPC-exos: endothelial progenitor cell-derived exosomes.
huMSC-exos: human umbilical cord mesenchymal stem cell-derived exosomes; EPC-exos: endothelial progenitor cell-derived exosomes.