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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한병리학회 Journal of Pathology and Translational Medicine Journal of Pathology and Translational Medicine 제36권 제6호
- 발행연도
- 2002.1
- 수록면
- 382 - 388 (7page)
이용수
초록· 키워드
오류제보하기
Background : Our aim was to undertake a comprehensive analysis of the expression of key molecular markers in a series of pancreatic ductal adenocarcinomas and to determine their association with clinicopathologic variables. Methods : By using immunohistochemical staining, we examined the expressions of five tumor suppressor genes (p53, p21WAF1, p16, Rb, Smad4) and a growth factor receptor (c-erbB-2) in 52 surgically resected pancreatic ductal adenocarcinomas. Results : Abnormal nuclear overexpression of p53 was noted in 28/52 (53.8%) cases. Total loss of p21WAF1, p16, Rb, and Smad4 was detected in 15/52 (28.8%), 33/52 (63.5%), 4/52 (7.7%), and 26/52 (50%) cases, respectively. Overexpression of c-erbB-2 was noted in 21/52 (40.4%) cases. Forty-nine (94.2%) cases revealed aberration of at least one of the markers examined. There was a positive correlation between p53 and c-erbB-2 overexpression (p<0.05). Among the examined genes, overexpression of c-erbB-2 was found to have a positive relationship with the tumor stage (p<0.05). There was also a significant correlation between the histologic grade and the number of abnormally expressed genes per tumor (p<0.05). Conclusion : Among the various tumor-associated proteins evaluated in this study, c-erbB-2 could have the most likely clinical implication.
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