[Expression of caveolin in hepatocellular carcinoma: association with unpaired artery formation and radiologic findings]

[Expression of caveolin in hepatocellular carcinoma: association with unpaired artery formation and radiologic findings] Research Abstract Details 

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[Expression of caveolin in hepatocellular carcinoma: association with unpaired artery formation and radiologic findings] Abstract Text:

Ha Na Choi,Kyung Ryoul Kim,Ho Sung Park,Kyu Yun Jang,Myoung Jae Kang,Dong Geun Lee,Young Kon Kim,Baik Hwan Cho,Eun Jung Cha,Woo Sung Moon,

BACKGROUND/AIMS: Hepatocellular carcinoma (HCC) is becoming one of the common malignant tumors worldwide, and it is characterized by its high vascularity. Caveolin is the major structural protein in caveolae, which are small omega-shaped invaginations within the plasma membrane. Caveolin has been implicated in mitogenic signaling, oncogenesis and angiogenesis. The expression of caveolin-1 and -2 in HCC and its potential relationship with angiogenesis has not been examined. METHODS: Paraffin sections of 35 HCC specimens were immunostained with caveolin-1, caveolin-2, alpha-smooth muscle actin, and CD34 antibodies. In addition, the expression of caveolin-1 and -2 mRNA in HCC was examined. The relationship between the radiological findings and the number of unpaired arteries and microvessel density (MVD) was also investigated. RESULTS: Caveolin-1 and -2 were expressed in the sinusoidal endothelial cells in 20 out of 35, and 18 out of 35 HCC specimens, respectively. Caveolin-1 and -2 were also expressed in the smooth muscle cells of the unpaired arteries in 26 out of 35, and 18 out of 35 HCC specimens, respectively. Increased expression of caveolin-1 and -2 mRNA was detected in 26.7% and 33.3% of the tumor specimens, respectively, compared with the corresponding non-tumorous adjacent liver tissues. There was a significant correlation between expression of caveolin-1, -2 in the smooth muscle cells of unpaired arteries and the number of unpaired arteries. The number of unpaired arteries in HCCs was found to be associated with the degree of contrast enhancement in the arterial phase imaging. However, it did not correlate with the degree of MVD. CONCLUSIONS: These findings suggest that the expression of caveolin-1, -2 is associated with the formation of unpaired arteries in HCC. In addition, there is a correlation between the degree of contrast enhancement of the HCC in the arterial phase image and the number of unpaired arteries.

[Expression of caveolin in hepatocellular carcinoma: association with unpaired artery formation and radiologic findings] Publishing Authors By Initials

HN Choi,KR Kim,HS Park,KY Jang,MJ Kang,DG Lee,YK Kim,BH Cho,EJ Cha,WS Moon,

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[Expression of caveolin in hepatocellular carcinoma: association with unpaired artery formation and radiologic findings] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Korean journal of hepatology

VOLUME: 13

Page Numbers: 396-408

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ISSN: 1738-222X

DAY: 27

MONTH: Sep

YEAR: 2007

[Expression of caveolin in hepatocellular carcinoma: association with unpaired artery formation and radiologic findings] Information

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LANGUAGE: kor

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AFFILIATION: Department of Pathology, Chonbuk National University Medical School, Jeonju, Korea.

Country: Korea (South)

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MEDLINETA: Korean J Hepatol

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