RAB20 and hepatocellular carcinoma: In accordance with the expression of Rab20 in HCC tissues, Rab20 was highly expressed in immortalized hepatocyte cell line MIHA while it was barely detected in non‐metastatic HCC cell lines (Hep3B, Huh7, HLE and PLC/PRF/5) and metastatic HCC cell lines (MHCC97L and MHCCLM3) (Figure 2a and 2b).