Figure 2. TRB3 is increased in human and knee articular cartilage. (A, B) Blots were stripped and reprobed with β-actin as a loading control. Densitometric analysis for protein levels of TRB3, P62, P16, P21, Beclin and LC3B. (C) Articular cartilage sections of HC or OA were analyzed immunohistochemically for TRB3, P62, and P16. The results are described as the mean ± SD. *P < 0.05, **P < 0.01 vs. normal group.