NewslettersMesenchymal Cell News Regulatory T Cell-Derived Exosome Mediated Macrophages Polarization for Osteogenic Differentiation in Fracture Repair By lbeveridge - April 9, 2024 0 Investigators constructed regulatory T cell-derived exosomes for the treatment of fracture. The obtained exosomes displayed a spheroid shape with a hydrated particle size of approximately 130 nm. [Journal Of Controlled Release] AbstractGraphical Abstract