Document Detail

Expression of vascular endothelial growth factor in surgical specimens of hepatocellular carcinoma.
MedLine Citation:
PMID:  10741909     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Vascular endothelial growth factor (VEGF) has been reported to play an important role in angiogenesis in hepatocellular carcinoma (HCC). However, there is great variation in reports on the distribution of VEGF expression, especially in non-carcinoma liver cells. Furthermore, some reports have mentioned that endothelial cells were positive for VEGF antibody but have not evaluated its significance. In this study, we focused our attention to these problems and try to solve them. We also analyzed the factors influencing VEGF expression and evaluated the prognostic potential of VEGF protein in HCC. METHODS: We examined the VEGF expression in specimens surgically removed from 46 HCC patients and 3 patients with liver cancer metastatic from the colon, and in 4 specimens of liver tissue with benign disease, by immunohistochemical methods. RESULTS/CONCLUSIONS: VEGF was expressed in HCC cells and hepatocytes and on vascular endothelial cells. Our finding that about seven times more endothelial cells were positive for VEGF antibody in carcinoma areas than in non-carcinoma areas (P < 0.001) suggests that VEGF is a very important angiogenesis factor for HCC growth. VEGF expression in HCC cells and non-carcinoma liver cells and on endothelial cells did not closely correlate with the disease recurrence rate (P > 0.05), suggesting that VEGF expression may not be useful as an individual factor for estimating the prognosis of HCC. A statistical analysis of the relationships between VEGF expression and clinicopathological variables revealed the following: preoperative transcatheter arterial embolization enhanced VEGF expression in both HCC cells and non-carcinoma liver cells. The histological grade of HCC and the level of alanine aminotransferase was related to VEGF expression in non-carcinoma liver cells and on endothelial cells in HCC areas. Tumor size and the histological status of the accompanying chronic hepatitis also influenced the VEGF expression on endothelial cells. Our findings concerning not only HCC but also the surrounding liver and endothelial cells may provide useful information for further research on the role of VEGF expression in HCC patients.
F Q An; M Matsuda; H Fujii; Y Matsumoto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cancer research and clinical oncology     Volume:  126     ISSN:  0171-5216     ISO Abbreviation:  J. Cancer Res. Clin. Oncol.     Publication Date:  2000 Mar 
Date Detail:
Created Date:  2000-04-11     Completed Date:  2000-04-11     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7902060     Medline TA:  J Cancer Res Clin Oncol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  153-60     Citation Subset:  IM    
First Department of Surgery, Yamanashi Medical University, Japan.
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MeSH Terms
Carcinoma, Hepatocellular / blood supply,  metabolism*,  surgery
Endothelial Growth Factors / metabolism*
Gene Expression Regulation, Neoplastic
Liver / metabolism
Liver Neoplasms / blood supply,  metabolism*,  surgery
Lymphokines / metabolism*
Middle Aged
Neovascularization, Pathologic
Predictive Value of Tests
Vascular Endothelial Growth Factor A
Vascular Endothelial Growth Factors
Reg. No./Substance:
0/Endothelial Growth Factors; 0/Lymphokines; 0/Vascular Endothelial Growth Factor A; 0/Vascular Endothelial Growth Factors

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