Additional file 2 of MicroRNA let-7b inhibits cell proliferation via upregulation of p21 in hepatocellular carcinoma

Additional file 2: Figure S2. The expression of let-7b in hepatocyte and HCC cell lines. RT-PCR and western blot were performed to detect let-7b expression in normal liver cells and HCC cell lines. Data from three replicates are shown as the means (± SD).