We first explored the expression of the mesenchymal stem cell marker KIT in six representative HCC cell lines that we had evaluated previously (Hep3B, HuH7, and HuH1 as EpCAM+ cell lines, and HLE, HLF, and SK-Hep-1 as CD90+ cell lines). The gene discussed is EPCAM; the disease is hepatocellular carcinoma.