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김준석 (한림대학교) 임만섭 (한림대학교) 김두진 (한림대학교) 김주섭 (한림대학교) 김관석 (한림대학교) 김홍기 (한림대학교) 조성진 (한림대학교) 권미정 (한림대학교) 남은숙 (한림대학교) 최경찬 (한림대학교) 신형식 (한림대학교) 채기봉 (강원대학교)
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한국간담췌외과학회 Annals of Hepato-Biliary-Pancreatic Surgery 한국간담췌외과학회지 제13권 제3호
발행연도
2009.9
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143 - 151 (9page)

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Purpose : Hepatocellular carcinoma (HCC) shows various molecular and genetic alterations in its development and progression. Recently, microsatelite instability (MSI) and the loss of heterozygosity (LOH), have been postulated as useful prognostic factors in many malignant tumors. LOH is related to the allelic loss of various tumor suppressor genes, however, MSI has been found to be the result of a mismatched DNA pairing. Our objectives were to evaluate MSI and p53 gene LOH and to correlate this to clinicopathological factors.
Methods : MSI analysis was performed by using polymerase chain reaction with 5 microsatellite markers (BAT25, BAT26, D2S123, D5S346 and D17S250 recommended in the 1998 NCI International Workshop) on 50 surgically resected tumors. p53 LOH was detected with 4 markers(D17S796, TP53, D17S5, D17S513).
Results : MSI and p53 LOH were detected in 30% and 66%, respectively. 18% of HCCs exhibited MSI in 5 NCI-recommended markers and 18% of HCCs demonstrated MSI in 4 p53 markers. MSI was mostly detected in BAT25 and BAT26 markers. MSI was more frequently detected in tumor grade Ⅰ, small HCC, and non-lymphovascular group. For the most aprt, p53 LOH was detected by D17S513 marker(38.1%). p53 LOH results were correlated with higher tumor grade and invasiveness. LOH-High group showed a significant correlation with advanced HCCs and lymphovascular invasion. There was no demonstrated correlation between MSI and p53 LOH was not demonstrated.
Conclusion : These results suggest that MSI may be involved to some extent in hepatocarcinogenesis and tumor invasion. Also MSI and p53 gene LOH may be a useful clinical indicator in determining the prognosis among patients with HCC.

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UCI(KEPA) : I410-ECN-0101-2014-514-001302876