Two-Stage Model of Chemically Induced Hepatocellular Carcinoma in Mouse

Author:

Luo Min1,Yang Fan,Huang Sheng-xin,Kuang Zhi-peng,Luo Xiao-ling,Li Yuan-dong,Wu Ji-ning,Xie Yu-an

Affiliation:

1. Biomedical Research Center, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People’s Republic of China

Abstract

The aim of this study was to develop an efficient and reproducible mouse model for hepatocellular carcinoma (HCC) research and assess the expression of two proto-oncogenes (c-myc and N-ras) and tumor suppressor gene p53 in the carcinogenic process. In this study, we found that diethylnitrosamine initiation with CCl4 and ethanol promotion could induce a short-term, two-stage liver carcinogenesis model in male BALB/c mice, the process of hepatocarcinogenesis including liver damage, liver necrosis/cell death, liver inflammation, liver proliferation, liver hyperplasia, liver steatosis, and liver cirrhosis and hepatocellular nodules, which mimicked the usual sequence of events observed in human HCC. We also identified that the increase in expression of the p53 gene is related to the proliferation of hepatocytes, whereas overexpression of the c-myc and N-ras genes is associated with hepatocarcinogenesis. This animal model may serve as a basis for recapitulating the molecular pathogenesis of HCC seen in humans.

Publisher

Cognizant, LLC

Subject

Cancer Research,Oncology,General Medicine

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