Fig. 1From: Characterization of human placenta-derived exosome (pExo) as a potential osteoarthritis disease modifying therapeuticGeneration and characterization of pExo. A Flow chart of pExo generation. B Western blots of pExo (N = 6 donors) to examine the levels of CD81, CD63, and CD9 as exosome markers. C Protein composition analysis showed the levels of OA-relevant proteins in pExo (N = 5 donors). Data is presented as mean ± 95% CI. Size distribution diagram (D) and particle image (E) were generated by NTA from a representative pExo donorBack to article page