지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.12
- 수록면
- 359 - 367 (9page)
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Purpose: To explore the role of cell cycle and apoptosis regulators during hepatocarcinogenesis, the expression of cell cycle-related proteins (cyclin D1 and p27<SUP>kip1</SUP>) and apoptosis-related proteins (p53, survivin, caspase 3).
Methods: Sprague-Dawley rats were given 120 ppm diethylnitrosamine (DEN) as a carcinogen and sequentially sacrificed. The expression of cell cycle and apoptotic related proteins were examined by light microscopy and immunohistochemistry.
Results: During the DEN-induced hepatocarcinogenesis, sequential histologic changes from preneoplastic lesions (altered hepatic cellular foci, hyperplastic nodules, and hepatocellular adenomas) and ultimately overt hepatocellular carcinomas and metastatic lesions were noted. The cyclin D1 were progressively increased from preneoplastic lesions to hepatocellular carcinomas. However, the p27<SUP>kip1</SUP> and the survivine proteins did not show any other difference with the increasing degree of carcinogenesis. The p53 and caspase 3 proteins were more significantly increased in hepatocellular carcinomas than preneoplastic lesions. The cyclin D1 protein expression did not show any correlation with the expression of p27<SUP>Kip1</SUP> protein, but the p53 expression was related to the expression of survivin and caspase 3.
Conclusion: From the above results, over-expression of cyclin D1 plays a role in the early and late stages of hepatocarcinogenesis. In addition p53 and caspase 3 might be useful markers for evaluating the risk of malignant transformation.
Methods: Sprague-Dawley rats were given 120 ppm diethylnitrosamine (DEN) as a carcinogen and sequentially sacrificed. The expression of cell cycle and apoptotic related proteins were examined by light microscopy and immunohistochemistry.
Results: During the DEN-induced hepatocarcinogenesis, sequential histologic changes from preneoplastic lesions (altered hepatic cellular foci, hyperplastic nodules, and hepatocellular adenomas) and ultimately overt hepatocellular carcinomas and metastatic lesions were noted. The cyclin D1 were progressively increased from preneoplastic lesions to hepatocellular carcinomas. However, the p27<SUP>kip1</SUP> and the survivine proteins did not show any other difference with the increasing degree of carcinogenesis. The p53 and caspase 3 proteins were more significantly increased in hepatocellular carcinomas than preneoplastic lesions. The cyclin D1 protein expression did not show any correlation with the expression of p27<SUP>Kip1</SUP> protein, but the p53 expression was related to the expression of survivin and caspase 3.
Conclusion: From the above results, over-expression of cyclin D1 plays a role in the early and late stages of hepatocarcinogenesis. In addition p53 and caspase 3 might be useful markers for evaluating the risk of malignant transformation.
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UCI(KEPA) : I410-ECN-0101-2013-514-002688895