Fig. 2
From: Quercetin-primed MSC exosomes synergistically attenuate osteoarthritis progression
Effect of quercetin-pretreated exosomes (Que-Exo) on gene and protein expression in IL-1β-stimulated chondrocytes. (A) RT-qPCR analysis of the relative gene expression of Mmp9, Cox-2, Collagen II, and Sox9. (B) Western blot analysis of protein expression of MMP9, COX-2, Collagen II, and SOX9. (C) Quantification of protein expression from Western blot analysis. (D) Immunofluorescence staining for MMP9 and COL II; bar = 20 μm. The data are presented as mean ± SD. Statistical significance: *p < 0.05, **p < 0.01, ***p < 0.001