Abstract:
BACKGROUND AND AIM:Hepatocellular carcinoma (HCC) is characteristically a hypervascular tumor and its progression is known to be closely related to angiogenesis. In this study, we investigated angiopoietin-2 (Ang-2) and vascular endothelial growth factor (VEGF) levels in the hepatic vein draining from HCC, as well as in the peripheral vein, to evaluate their relation to clinicopathological features and prognosis. METHODS:To obtain hepatic venous blood samples, a catheter was placed into the main branch of the hepatic vein draining from HCC in 21 patients. The Ang-2 and VEGF levels in both the hepatic and peripheral veins were investigated. Furthermore, Ang-2 mRNA expression in surgically resected HCC was evaluated by quantitative reverse-transcription polymerase chain reaction (RT-PCR), as well as microvessel density (MVD) by CD34 immunostaining. RESULTS:Ang-2 levels in the hepatic vein significantly correlated with Ang-2 mRNA expression in HCC, but Ang-2 levels in the peripheral vein did not correlate. Furthermore, a significant correlation was found between hepatic venous Ang-2 and MVD levels, whereas there was no significant correlation with hepatic venous VEGF levels. When hepatic venous Ang-2 levels were compared with clinicopathological features, a significant relationship was found between high Ang-2 levels and portal vein invasion. The survival for patients in the high hepatic venous Ang-2 group was significantly poorer when compared with the low group. CONCLUSION:Preoperative hepatic venous Ang-2 levels may be a good predictor for portal vein invasion and also prognosis in patients with HCC.
journal_name
J Gastroenterol Hepatoljournal_title
Journal of gastroenterology and hepatologyauthors
Kuboki S,Shimizu H,Mitsuhashi N,Kusashio K,Kimura F,Yoshidome H,Ohtsuka M,Kato A,Yoshitomi H,Miyazaki Mdoi
10.1111/j.1440-1746.2007.05175.xsubject
Has Abstractpub_date
2008-07-01 00:00:00pages
e157-64issue
7 Pt 2eissn
0815-9319issn
1440-1746pii
JGH5175journal_volume
23pub_type
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