Hypoxia-Induced Mesenchymal Stem Cell-Derived Exosomes Enhance TGF-β, PDGF, and Hair Growth in Alopecia-Like Rat Models

This study investigates the effects of hypoxia-induced mesenchymal stem cell (MSC)–derived exosomes on hair growth in a fluconazole-induced alopecia-like rat model. The study involved five groups, including a healthy control and various treatments, with the highest levels of TGF-β and PDGF observed in the group receiving 200 µL of exosomes. The results indicate that these exosomes significantly enhance TGF-β and PDGF expression, contributing to improved hair growth through immunomodulation and pro-angiogenic mechanisms. The findings suggest that hypoxia-induced MSC exosomes could be a promising therapeutic strategy for alopecia and other chronic inflammation-based skin disorders, although further research is needed to explore the roles of various cytokines.