Fig. 7From: PTH (1-34) enhances the therapeutic effect of bone marrow mesenchymal stem cell-derived exosomes by inhibiting proinflammatory cytokines expression on OA chondrocyte repair in vitroA Mechanistic diagram of our study. IL-1β, interleukin-1β; PTH, parathyroid hormone; OA, osteoarthritis; Exos, exosomes derived from PTH-preconditioned BMSCs; BMSCs, bone marrow mesenchymal stem cells; ECM, extracellular matrixBack to article page