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Updated: Jul 6, 2026
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Correlating Gene-specific DNA Methylation Changes with Expression and Transcriptional Activity of Astrocytic KCNJ10 (Kir4.1)
Published on: September 26, 2015
[Endothelin-1 expression and quantitative analysis in astrocytomas]
Jian-min Li1, Xiu-ling Wu, Qi-jian Zhu
1Department of Pathology, First Affiliated Hospital of Wenzhou Medical College, Wenzhou 325003, P. R. China. ljmin@wzptt.zj.cn
AI Zheng = Aizheng = Chinese Journal of Cancer
|January 2, 2003
Summary
Endothelin-1 (ET-1) expression increases with astrocytoma grade, correlating with tumor progression. Quantitative ET-1 analysis may serve as a biomarker for monitoring astrocytoma growth.
Area of Science:
- Neuro-oncology
- Molecular biology
- Cancer research
Context:
- Endothelin-1 (ET-1) is implicated in tumor growth.
- Astrocytomas are primary brain tumors with varying malignancy.
- Understanding ET-1's role in astrocytoma is crucial for diagnosis and treatment.
Purpose:
- To investigate the expression of ET-1 in astrocytomas.
- To determine the correlation between ET-1 levels and astrocytoma grade.
Summary:
- ET-1 expression was evaluated in 70 astrocytoma specimens using immunohistochemistry and image analysis.
- ET-1 was detected in all astrocytomas, with higher expression in higher-grade tumors (IV and III) compared to lower grades (II, I) and normal astrocytes.
- A significant positive correlation was found between ET-1 expression levels and astrocytoma grade (P < 0.01).
Impact:
- ET-1 expression levels correlate with astrocytoma malignancy.
- Quantitative ET-1 analysis could serve as a valuable monitoring index for astrocytoma growth and progression.
- This finding may contribute to improved diagnostic and prognostic tools for astrocytoma patients.
