TGFB1 and hepatocellular carcinoma: On the contrary, the expression rate of TGF-β1 in HCC tissues (59.5%, 50/84) was significantly higher than that in the normal liver tissues (0, 0/20, P < 0.001), but not in HCC adjacent tissues (46.4%, 39/84, P = 0.089, Table 2, Figure 1A, C).