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Published on: July 22, 2020
Epigenetic modifications in colorectal cancer: molecular insights and therapeutic challenges
Aristeidis G Vaiopoulos1, Kalliopi Ch Athanasoula1, Athanasios G Papavassiliou1
1Department of Biological Chemistry, University of Athens Medical School, 11527 Athens, Greece.
Abstract:
Colorectal cancer, a leading cause of mortality worldwide, is a multistep disorder that results from the alteration of genetic and epigenetic mechanisms under contextual influence. Epigenetic aberrations, including DNA methylation, histone modifications, chromatin remodeling and non-coding RNAs, affect every aspect of tumor development from initiation to metastasis. Cancer stem cell promotion is also included in the wide spectrum of epigenetic dysregulations. Elucidation of this complex crosstalk network may offer new insights in the molecular interactions involved in the pathogenesis of colorectal carcinogenesis. In the era of translational medicine new horizons are opened for the pursuit of personalized therapeutic approaches and the development of novel and accurate diagnostic, prognostic and therapy-assessment markers. This review discusses the implications of epigenetic mechanisms in tumor biology and their applications "from bench to bedside".
Insights
Epigenetic mechanisms significantly influence colorectal cancer development and progression. Understanding these changes offers new avenues for personalized diagnostics and treatments.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Colorectal cancer is a major global health concern.
- It arises from genetic and epigenetic alterations.
- Epigenetic changes are crucial throughout tumor development.
Purpose of the Study:
- To review the role of epigenetic mechanisms in colorectal cancer.
- To explore their implications in tumor biology.
- To discuss their translational applications from research to clinical practice.
Main Methods:
- Literature review of epigenetic mechanisms in colorectal cancer.
- Analysis of DNA methylation, histone modifications, chromatin remodeling, and non-coding RNAs.
- Examination of cancer stem cell promotion and epigenetic dysregulation.
Main Results:
- Epigenetic aberrations impact all stages of colorectal cancer, including initiation and metastasis.
- These mechanisms are involved in cancer stem cell promotion.
- The complex interplay of epigenetic factors drives colorectal carcinogenesis.
Conclusions:
- Elucidating epigenetic crosstalk provides insights into colorectal cancer pathogenesis.
- Epigenetic mechanisms open new possibilities for personalized therapies.
- Novel diagnostic, prognostic, and therapy-assessment markers can be developed based on epigenetic alterations.
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