지원사업
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
- 발행연도
- 2007.9
- 수록면
- 227 - 234 (8page)
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Purpose: Chromosomal instability of chromosome 18 and inhibition of the transforming growth factor beta (TGF-β) signaling pathway, which is mediated through Smad4, play important roles in the tumorigenesis of colon cancer. This study evaluated the value of the expression of chromosome 18 monosomy in colon cancer as a prognostic factor and its correlations with the expressions of Smad4 and TGF-β receptor Ⅱ proteins.
Methods: We analyzed the rate of the expression of chromosome 18 monosomy in 66 colon cancers with using chromogenic in situ hybridization (CISH) and we evaluated its value as a prognostic factor by determining its correlation with the pathologic factors and immunohistochemical expressions of Smad4 and TGF-β receptor Ⅱ proteins.
Results: Of the 66 colon cancers, monosomy of chromosome 18, as determined by CISH, was observed in 18 cases (27.3%), and the decreased expression of Smad4 and TGF-β receptor Ⅱ proteins was observed in 30 cases (45.5%) and 25 cases (37.9%), respectively. The monosomy of chromosome 18 and the decreased expression of Smad4 proteins showed statistically significant correlations with the histologic differentiation, the presence of tumor emboli, the nodal status and the stage. The decreased expression of TGF-β receptor Ⅱ proteins had statistically significant correlations with the histologic differentiation, the T-stage, the nodal status and the stage. The monosomy of chromosome 18 showed a statistically significant correlation with the decreased expression of Smad4 and TGF-β receptor Ⅱ proteins.
Conclusion: These results suggested that chromosome 18 monosomy may have prognostic value for colon cancer.
Methods: We analyzed the rate of the expression of chromosome 18 monosomy in 66 colon cancers with using chromogenic in situ hybridization (CISH) and we evaluated its value as a prognostic factor by determining its correlation with the pathologic factors and immunohistochemical expressions of Smad4 and TGF-β receptor Ⅱ proteins.
Results: Of the 66 colon cancers, monosomy of chromosome 18, as determined by CISH, was observed in 18 cases (27.3%), and the decreased expression of Smad4 and TGF-β receptor Ⅱ proteins was observed in 30 cases (45.5%) and 25 cases (37.9%), respectively. The monosomy of chromosome 18 and the decreased expression of Smad4 proteins showed statistically significant correlations with the histologic differentiation, the presence of tumor emboli, the nodal status and the stage. The decreased expression of TGF-β receptor Ⅱ proteins had statistically significant correlations with the histologic differentiation, the T-stage, the nodal status and the stage. The monosomy of chromosome 18 showed a statistically significant correlation with the decreased expression of Smad4 and TGF-β receptor Ⅱ proteins.
Conclusion: These results suggested that chromosome 18 monosomy may have prognostic value for colon cancer.
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UCI(KEPA) : I410-ECN-0101-2013-514-002673125