
Research ArticlePrimary isolated hepatic oval cells maintain progenitor cell phenotypes after two-year prolonged cultivation
Keywords: CDE; choline-deficient ethionine-supplemented diet; HCC; hepatocellular carcinoma; AFP; alpha-fetoprotein; ALB; albumin; CK19; cytokeratin 19; NaBu; sodium butyrate; Hepatic progenitors; Long-term cultivation; Proliferation; Malignant transformation;