Figure 7. RPN2 regulated the MMP-9 expression level in the HCC cells. HepG2 cells were transfected with AD-RPN2 or shRNA-RPN2. MMP-9 Protein and mRNA expression was detected via the WB (A, B) and qPCR (C, D). The band of target protein was normalized to the density of action. The quantification was performed independently in a single band. The experiments were performed three times. Data are represented as mean ± SD. **P <0.01 vs control group.