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Updated: Jul 4, 2025

Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer
Published on: July 28, 2010
Pathogenesis and biomarkers of colorectal cancer by epigenetic alteration
Chang Kyo Oh1, Young-Seok Cho2
1Division of Gastroenterology, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
Abstract:
Colorectal cancer (CRC) ranks third in cancer incidence and stands as the second leading cause of cancer-related deaths globally. CRC tumorigenesis results from a cumulative set of genetic and epigenetic alterations, disrupting cancer-regulatory processes like cell proliferation, metabolism, angiogenesis, cell death, invasion, and metastasis. Key epigenetic modifications observed in cancers encompass abnormal DNA methylation, atypical histone modifications, and irregularities in noncoding RNAs, such as microRNAs and long noncoding RNAs. The advancement in genomic technologies has positioned these genetic and epigenetic shifts as potential clinical biomarkers for CRC patients. This review concisely covers the fundamental principles of CRC-associated epigenetic changes, and examines in detail their emerging role as biomarkers for early detection, prognosis, and treatment response prediction.
Insights
Colorectal cancer (CRC) involves genetic and epigenetic changes. Epigenetic alterations are emerging as key biomarkers for CRC early detection, prognosis, and treatment response.
Area of Science:
- Oncology
- Epigenetics
- Molecular Biology
Background:
- Colorectal cancer (CRC) is a leading cause of cancer death worldwide.
- CRC development involves accumulating genetic and epigenetic alterations affecting critical cellular processes.
- Epigenetic changes, including DNA methylation and noncoding RNA dysregulation, are hallmarks of cancer.
Purpose of the Study:
- To review the fundamental principles of epigenetic changes in CRC.
- To examine the role of epigenetic modifications as biomarkers for CRC.
- To discuss their application in early detection, prognosis, and predicting treatment response.
Main Methods:
- Literature review of CRC epigenetics.
- Analysis of genomic technologies for biomarker discovery.
- Synthesis of current research on epigenetic biomarkers in CRC.
Main Results:
- Epigenetic alterations are integral to CRC tumorigenesis.
- Genomic technologies facilitate the identification of epigenetic biomarkers.
- These biomarkers show promise for clinical applications in CRC management.
Conclusions:
- Epigenetic modifications are crucial in colorectal cancer development.
- Emerging epigenetic biomarkers offer potential for improved CRC diagnostics and therapeutics.
- Further research is needed to fully translate these findings into clinical practice.
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