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Cyclooxyenase-2 expression in endometrium carcinoma.
1Department of Gynecology and Obstetrics, Tongji hospital, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430030, China.
Zhonghua Fu Chan Ke Za Zhi
|November 2, 2002
Summary
Cyclooxygenase-2 (COX-2) expression is significantly elevated in endometrial carcinoma. This suggests COX-2 plays a key role in the development of endometrial cancer.
Area of Science:
- Oncology
- Molecular Biology
- Gynecology
Background:
- Endometrial carcinoma is a prevalent gynecological malignancy.
- Cyclooxygenase-2 (COX-2) is implicated in various cancers.
- Understanding COX-2's role in endometrial carcinogenesis is crucial.
Purpose of the Study:
- To investigate the expression levels of COX-2 in normal endometrium and endometrial carcinoma.
- To determine the correlation between COX-2 expression and the stages of endometrial carcinogenesis.
Main Methods:
- Utilized immunostaining, western blotting, and quantitative reverse transcription-polymerase chain reaction (RT-PCR).
- Assessed COX-2 protein and mRNA expression in five groups: proliferative phase, secretory phase, endometritis, atypical proliferative phase, and endometrial carcinoma.
- Quantified expression levels using scoring, average absorbent values, and mRNA concentration.
Main Results:
- Significantly higher COX-2 RNA and protein expression were observed in endometrial carcinoma compared to proliferative phase, secretory phase, endometritis, and atypical proliferative phases.
- Atypical proliferative phase showed higher COX-2 expression than normal endometrium and endometritis groups.
- Proliferative phase exhibited significantly higher COX-2 expression than the secretory phase (P < 0.05).
Conclusions:
- COX-2 expression is markedly upregulated in endometrial carcinoma.
- The findings suggest a significant role for COX-2 in the pathogenesis and development of endometrial cancer.