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자료유형
학술저널
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저널정보
대한병리학회 Journal of Pathology and Translational Medicine Journal of Pathology and Translational Medicine 제44권 제4호
발행연도
2010.1
수록면
346 - 353 (8page)

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Background : Minichromosome maintenance protein 7 (MCM 7) performs a direct role in the initiation of DNA replication, which suggests that it may prove useful as a marker of cell proliferation. Smad 4 is a tumor suppressor gene that mediates the transforming growth factor β pathway. The principal objective of this study was to characterize the expression of MCM 7 and Smad 4 and to analyze their relationship to clinicopathological parameters in patients with esophageal squamous cell carcinoma. Methods : Expression levels of MCM 7 and Smad 4 were evaluated via immunohistochemistry on formalin-fixed and paraffin-embedded tissues from 67 cases of esophageal squamous cell carcinoma. Results : High levels of MCM 7 expression were detected in 53 cases (74.6%), and were associated with higher T stages (p = 0.030). Kaplan-Meier survival curves demonstrated that patients with higher levels of MCM 7 expression had poorer prognoses, although this association was not significant (p = 0.086). Loss of Smad 4 expression was noted in 18 cases (23.4%), and was not associated with clinicopathological characteristics, including MCM 7 expression, or prognosis. Conclusions : MCM 7 expression is associated with the invasiveness of esophageal squamous cell carcinoma. Altered expression of Smad 4 does not appear to have pathobiological significance in esophageal carcinoma.

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