Mesenchymal Stem Cell-Derived Exosomes for Organ Development and Cell-Free Therapy

The document reviewed the role of mesenchymal stem cell-derived exosomes (MSC-Exos) in organ development and their potential as cell-free therapeutic agents. It highlighted that MSC-Exos can mediate intercellular communication during the organogenesis of structures like the salivary gland, tooth, hair follicle, and kidney. The review also discussed the therapeutic benefits of MSC-Exos in conditions such as ischemic heart disease, cutaneous wound healing, and COVID-19. The authors provided a critical analysis of exosome biogenesis, molecular composition, isolation, and characterization, and emphasized the reparative potential and mechanisms of action of MSC-Exos, while also addressing major challenges in the field.