Fig. 6From: A novel extracellular vesicles production system harnessing matrix homeostasis and macrophage reprogramming mitigates osteoarthritisHistological verifications (HE, SO-FG, TB staining, and immunohistochemical staining) of cartilage repair. A-C: HE (A), SO-FG (B), and TB (C) staining images detecting the cartilage repair condition. D-E: Immunohistochemical staining of the anti-catabolic marker (Aggrecan) (D) and catabolic marker (MMP13) (E)Back to article page