Modeling of Hepatocytes Proliferation Isolated from Proximal and Distal Zones from Human Hepatocellular Carcinoma Lesion

• Published in: PloS one Vol. 11; no. 4; p. e0153613
• Main Authors: Montalbano, Mauro, Curcurù, Giuseppe, Shirafkan, Ali, Vento, Renza, Rastellini, Cristiana, Cicalese, Luca
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 13.04.2016; Public Library of Science (PLoS)
• Subjects: Actin; Aged; Antigens; Biology and Life Sciences; Carcinoma, Hepatocellular - pathology; Care and treatment; Cell culture; Cell cycle; Cell Proliferation; Cirrhosis; Complications and side effects; Diagnosis; Female; Gene expression; Heparan sulfate proteoglycans; Hepatocellular carcinoma; Hepatocytes; Hepatocytes - pathology; Humans; Laboratories; Lesions; Liver; Liver cancer; Liver cirrhosis; Liver Cirrhosis - pathology; Liver diseases; Liver Neoplasms - pathology; Male; Markers; Mathematical models; Medical research; Medicine and Health Sciences; Metabolism; Middle Aged; Muscles; Proliferating cell nuclear antigen; Research and Analysis Methods; Rodents; Statistical models; Subpopulations; Surgery; Surgical instruments; Transformation; Transformations (mathematics); Tumor Cells, Cultured
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0153613

Isolation of hepatocytes from cirrhotic human livers and subsequent primary culture are important new tools for laboratory research and cell-based therapeutics in the study of hepatocellular carcinoma (HCC). Using such techniques, we have previously identified different subpopulations of human hepatocytes and among them one is showing a progressive transformation of hepatocytes in HCC-like cells. We have hypothesized that increasing the distance from the neoplastic lesion might affect hepatocyte function and transformation capacity. However, limited information is available in comparing the growth and proliferation of human hepatocytes obtained from different areas of the same cirrhotic liver in relation to their distance from the HCC lesion. In this study, hepatocytes from 10 patients with cirrhosis and HCC undergoing surgical resections from specimens obtained at a proximal (CP) and distal (CD) distance from the HCC lesion were isolated and placed in primary culture. CP hepatocytes (CP-Hep) were isolated between 1 to 3 cm (leaving at least 1cm margin to avoid cancer cells and/or satellite lesions), while CD hepatocytes (CD-Hep) were isolated from more than 5 cm or from the contralateral-lobe. A statistical model was built to analyze the proliferation rates of these cells and we evaluated expression of HCC markers (Glypican-3 (GPC3), αSmooth Muscle Actin (α-SMA) and PCNA). We observed a significant difference in proliferation and in-vitro growth showing that CP-Hep had a proliferation pattern and rate significantly different than CD-Hep. Based on these data, this model can provide information to predict growth of human hepatocytes in primary culture in relation to their pre-cancerous state with significant differences in the HCC markers expression. This model provides an important innovative tool for in-vitro analysis of HCC.