Document Detail

Transfection of apoptosis related gene Fas ligand in human hepatocellular carcinoma cells and its significance in apoptosis.
MedLine Citation:
PMID:  15849828     Owner:  NLM     Status:  MEDLINE    
AIM: To evaluate the expression of apoptosis related gene Fas ligand (FasL) in human hepatocellular carcinoma (HCC) cells HepG2 and its significance in apoptosis. METHODS: Levels of soluble Fas ligand (sFasL) in a group of patients with hepatitis B virus (HBV)-induced chronic hepatitis, HBV-positive liver cirrhosis and HCC were evaluated. In a further study, the recombinant eukaryotic expression plasmid pcDNA3.1hisB-FasL was transfected into HCC cells HepG2 by lipofection, and then soluble FasL was examined in the supernatant of culture cells by EIA, FasL expression in HepG2 cells was detected by immunohistochemistry. After being stained by annexin V and propidium iodine, cells were passed through a flow cytometer and examined by a fluorescence microscope and a laser scanning microscope. RESULTS: The sFasL levels were significantly lower in patients with HCC when compared to the patients with hepatitis or liver cirrhosis. In comparison with untransfected cells, the soluble FasL could be detected in the supernatant of transfected cells. FasL was expressed on the membranes and cytoplasm of transfected cells. The apoptotic cell rate was 36.30% in transfected cells, and was 11.53% in untransfected cells. Moreover, the different stage of apoptotic cells could be distinguished by annexin V and propidium iodine staining. CONCLUSION: Fas ligand is an apoptotic pathway of HCC cells.
Jun Chen; Xian-Shi Su; Yong-Fang Jiang; Guo-Zhong Gong; Yu-Huang Zheng; Gui-Yuan Li
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  World journal of gastroenterology : WJG     Volume:  11     ISSN:  1007-9327     ISO Abbreviation:  World J. Gastroenterol.     Publication Date:  2005 May 
Date Detail:
Created Date:  2005-04-25     Completed Date:  2005-06-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100883448     Medline TA:  World J Gastroenterol     Country:  China    
Other Details:
Languages:  eng     Pagination:  2653-5     Citation Subset:  IM    
Department of Infectious Diseases, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China.
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MeSH Terms
Apoptosis / physiology*
Carcinoma, Hepatocellular / pathology,  physiopathology*
Cell Line, Tumor
Fas Ligand Protein
Liver Neoplasms / pathology,  physiopathology*
Membrane Glycoproteins / genetics*
Reg. No./Substance:
0/FASLG protein, human; 0/Fas Ligand Protein; 0/Membrane Glycoproteins

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