TGFB1 and hepatocellular carcinoma: In this study, we found that miR-27a expression was significantly up-regulated in human hepatic stellate LX2 cells and culture medium activated by TGFβ1 (Figure 5A and 5B), while miR-27a did not show specific regulation changes following TGFβ1 treatment in normal human hepatic L02 and hepatocellular carcinoma HepG2 cells and the culture medium (Figure 5A and 5B).