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Correlation between NDRG1 and PTEN expression in endometrial carcinoma
Jiawei Chen1, Shuxia Li, Zhaorui Yang
1Department of Pathology, The First People's Hospital, Shanghai Jiaotong University, Shanghai, 200080, China. jiaweichen2000@sina.com
Cancer Science
|April 2, 2008
Summary
N-myc Downstream-Regulated Gene 1 (NDRG1) is overexpressed and Phosphatase and tensin homolog deleted from chromosome (PTEN) is downregulated in endometrial carcinoma. These changes may aid in early cancer detection.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- N-myc Downstream-Regulated Gene 1 (NDRG1) is a differentiation-related gene implicated in carcinogenesis.
- Phosphatase and tensin homolog deleted from chromosome (PTEN) is a tumor suppressor frequently altered in cancers, including endometrial carcinoma.
Purpose of the Study:
- To investigate the expression patterns of NDRG1 and PTEN in normal endometrium, atypical hyperplasia, and Type I endometrioid endometrial carcinoma.
- To determine the correlation between NDRG1 and PTEN expression and clinicopathological features of endometrial carcinoma.
Main Methods:
- Immunohistochemical analysis was employed to assess NDRG1 and PTEN expression levels.
- Expression data were analyzed in normal endometrium, atypical hyperplasia, and 103 cases of Type I endometrioid endometrial carcinoma.
Main Results:
- NDRG1 expression was significantly upregulated in atypical hyperplasia and endometrial carcinoma compared to normal endometrium (P < 0.01).
- PTEN expression was significantly downregulated in atypical hyperplasia and endometrial carcinoma compared to normal endometrium (P < 0.01).
- A significant positive correlation was observed between NDRG1 upregulation and PTEN downregulation (P < 0.01).
Conclusions:
- Endometrial carcinoma development is associated with NDRG1 overexpression and loss of PTEN expression.
- Changes in NDRG1 and PTEN expression may serve as valuable diagnostic markers for early detection of endometrial carcinoma.