Journal: Regenerative Therapy
Article Title: Hypoxia-preconditioned bone marrow mesenchymal stem cell-derived exosomes ameliorate knee osteoarthritis by promoting cartilage regeneration and alleviating pain in rats
doi: 10.1016/j.reth.2025.101049
Figure Lengend Snippet: Intra-articular injection of Hypo-BMSCs-Exo protects articular cartilage from degeneration in KOA rats. A: Representative images of immunohistochemical staining for iNOS, COX2, Collagen II, Aggrecan, ADAMTS-5, and MMP-13 in cartilage tissue at 8 weeks post-intervention. Scale bar = 50 μm. B: Quantitative analysis and statistical evaluation of immunopositive cells. Data are expressed as mean ± standard deviation (SD), with n = 3 per group. Intergroup statistical significance is indicated as: ∗P < 0.05, ∗∗P < 0.01, ∗∗∗P < 0.001 compared to control rats; # p < 0.05、 ## p < 0.01、 ### p < 0.001 indicate differences compared with OA rats; & p < 0.05、 && p < 0.01、 &&& p < 0.001 indicate differences compared with Norm-BMSCs-Exos rats.
Article Snippet: The sections were blocked with 10 % fetal bovine serum (FBS) for 1 h at room temperature, then incubated overnight at 4 °C with primary antibodies against iNOS (Servicebio, China), COX2 (ProteinTech Group, China), Collagen II (Bioss, China), aggrecan (Bioss, China), MMP-13 (ProteinTech Group, China), and ADAMTS-5 (Zenbio, China).
Techniques: Injection, Immunohistochemical staining, Staining, Standard Deviation, Control