Fig. 4

MiR-1-3p directly targets SOX9 in human chondrocytes. A Bioinformatics database analysis showing that miR-1-3p directly targets SOX9. B Luciferase reporter assay verifying the interaction between miR-1-3p and SOX9. C, D Evaluation of SOX9 transcript and protein expression in the miR-1-3p inhibitor- or NC-miRNA inhibitor-treated chondrocytes. (*P < 0.05, **P < 0.01)