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비소세포 폐암종의 CD44s 와 Cycylooxygenase-2 발현

Expression of CD44s Is Associated with the Expression of Cyclooxygenase-2 in Non-Small Cell Lung Cancers

김현정|김정연|박경미|임성직
대한병리학회|2006.02|Journal of Pathology and Translational Medicine|제40권 제1호|pp. 17-23

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참고문헌

주제분류병리학

초록

Abstract

Background : The overexpression of Cox-2 in tumors is important for tumor invasion, angiogenesis, resistance to apoptosis and the suppression of host immunity. Moreover, a tumor’s CD44 expression plays an important role in tumor invasion and metastasis. We examined the expression of COX-2 and also CD44 and its variants as well as the biological implications and relationship between Cox-2 and the CD44 variants in non-small cell lung carcinoma. Methods : The expressions of Cox-2 and also CD44s and its variants (CD44v3 and CD44v6) were examined by performing immunohistochemistry on 98 surgical specimens. Results : The expressions of CD44s, CD44v3 and CD44v6 were significantly more frequent in squamous cell carcinoma specimens than in the adenocarcinoma (CD44s, p=0.033; CD44v3, p=0.007; CD44v6, p=0.022). The loss of CD44s and CD44v3 were significantly correlated with poor tumor differentiation (CD44s, p=0.03; CD44v3, p=0.011). Patients with Cox-2 positive-adenocarcinoma tumors had a significantly worse cumulative survival than did those adenocarcinoma patients without the Cox-2 (p=0.048). The expression of Cox-2 was significantly associated with the CD44s expression in non-small cell lung cancer, and especially in squamous cell carcinoma. Conclusions : These findings suggest that expression of CD44s is associated with the expression of Cox-2 in NSCLC, and especially squamous cell carcinoma.

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