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Updated: May 12, 2026

Development of Compendium for Esophageal Squamous Cell Carcinoma
Published on: April 12, 2024
Epigenetic alterations and their clinical implications in esophageal squamous cell carcinoma
Yasushi Toh1, Akinori Egashira, Manabu Yamamoto
1Department of Gastroenterological Surgery, National Kyushu Cancer Center, 3-1-1 Notame, Minami-ku, Fukuoka, 811-1395, Japan. ytoh@nk-cc.go.jp
Abstract:
Alterations in the regulation of gene expression that do not involve a change in the DNA sequence have been increasingly recognized as an important key event of carcinogenesis, referred to as "epigenetic" changes. Major epigenetic mechanisms include the methylation of cytosines in DNA, changes of histone and chromatin structure by covalent posttranslational modifications of histone proteins and alterations in the expression of microRNAs. These epigenetic alterations have also been identified in esophageal squamous cell carcinoma (ESCC). In this brief review, we will discuss DNA hypermethylation of the tumor suppressor gene promoters, histone modifications including histone acetylation/deacetylation and histone methylation and microRNAs in ESCC. Clinical implications of these epigenetic alterations in ESCC will be also discussed.
Insights
Epigenetic alterations, including DNA methylation and microRNA changes, are key in esophageal squamous cell carcinoma (ESCC) development. Understanding these epigenetic modifications offers potential clinical insights for ESCC.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Epigenetic alterations, changes in gene expression without DNA sequence modification, are crucial in cancer.
- Mechanisms include DNA methylation, histone modifications, and microRNA expression changes.
- These epigenetic changes are observed in esophageal squamous cell carcinoma (ESCC).
Purpose of the Study:
- To review epigenetic alterations in esophageal squamous cell carcinoma (ESCC).
- To discuss DNA methylation, histone modifications, and microRNAs in ESCC.
- To explore the clinical implications of these epigenetic changes in ESCC.
Main Methods:
- Review of literature on epigenetic mechanisms in cancer.
- Focus on DNA hypermethylation of tumor suppressor genes.
- Discussion of histone modifications (acetylation/deacetylation, methylation) and microRNAs in ESCC.
Main Results:
- Epigenetic alterations are significant in the development of ESCC.
- DNA hypermethylation, altered histone modifications, and microRNA dysregulation are identified in ESCC.
- These epigenetic changes have potential clinical relevance for ESCC diagnosis and treatment.
Conclusions:
- Epigenetic mechanisms play a critical role in ESCC pathogenesis.
- Further research into epigenetic modifications in ESCC may lead to novel therapeutic strategies.
- Understanding epigenetic alterations is vital for advancing ESCC management.
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