Figure 3. FRZB blocked Wnt signaling and inhibited the catabolic activities and hypertrophy in the induced chondrogenic tissues. (A) Expression level of Wnt pathway markers (β-catenin, WNT3A and WNT8A) for BMSCs in different treatment groups (n=6 for each) (B) Expression level of catabolic markers (MMP9, MMP13 and ADAMTS5) in different treatment groups (n=6 for each). (C) Expression level of hypertrophy and osteogenesis markers (COL10A1, RUNX2 and OCN) for BMSCs in different treatment groups (n=6 for each). *P < 0.05 between control group and other groups. Data are presented as averages ± SD. One-way analysis of variance (ANOVA) with post-hoc Tukey’s B test was applied.