CYP27A1 and hepatocellular carcinoma: Among them, ACSL3, CYP7A1, CYP27A1, FABP6, ME1, MMP1, NR1H3 and PPARG were highly expressed in HCC tissues, while FABP5, HMGCS2 and SLC27A5 were highly expressed in adjacent tissues (Fig. 1B).