Fig. 1From: Mesenchymal stromal cell-based therapy for cartilage regeneration in knee osteoarthritisThe flow diagram of applying MSC-based therapy. Firstly, choose the appropriate origin of MSCs, then isolate MSCs from other cells, and authenticate them. Inject the MSCs or isolate MSCs-derived exosomes by centrifugation or other methods, and then inject the exosomes after authentication. MSCs: mesenchymal stromal cellsBack to article page