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Published on: July 28, 2010
Natural Stilbenes: Their Role in Colorectal Cancer Prevention, DNA Methylation, and Therapy
Veronika Fialková1, Hana Ďúranová1, Petra Borotová1
1AgroBioTech Research Centre, Slovak University of Agriculture, Nitra, Slovakia.
Abstract:
The resistance of colorectal cancer (CRC) to conventional therapeutic modalities, such as radiation therapy and chemotherapy, along with the associated side effects, significantly limits effective anticancer strategies. Numerous epigenetic investigations have unveiled that naturally occurring stilbenes can modify or reverse abnormal epigenetic alterations, particularly aberrant DNA methylation status, offering potential avenues for preventing or treating CRC. By modulating the activity of the DNA methylation machinery components, phytochemicals may influence the various stages of CRC carcinogenesis through multiple molecular mechanisms. Several epigenetic studies, especially preclinical research, have highlighted the effective DNA methylation modulatory effects of stilbenes with minimal adverse effects on organisms, particularly in combination therapies for CRC. However, the available preclinical and clinical data regarding the effects of commonly encountered stilbenes against CRC are currently limited. Therefore, additional epigenetic research is warranted to explore the preventive potential of these phytochemicals in CRC development and to validate their therapeutic application in the prevention and treatment of CRC. This review aims to provide an overview of selected bioactive stilbenes as potential chemopreventive agents for CRC with a focus on their modulatory mechanisms of action, especially in targeting alterations in DNA methylation machinery in CRC.
Insights
Naturally occurring stilbenes show promise in reversing epigenetic alterations in colorectal cancer (CRC). Further research is needed to validate their potential in CRC prevention and treatment.
Area of Science:
- Oncology
- Epigenetics
- Pharmacology
Background:
- Colorectal cancer (CRC) exhibits resistance to conventional therapies like chemotherapy and radiation.
- Side effects of current CRC treatments limit their efficacy.
- Epigenetic modifications, particularly DNA methylation, play a crucial role in CRC development.
Purpose of the Study:
- To review bioactive stilbenes as potential chemopreventive agents for CRC.
- To explore the mechanisms by which stilbenes target DNA methylation machinery in CRC.
- To highlight the need for further research into stilbene's role in CRC prevention and treatment.
Main Methods:
- Literature review of preclinical and clinical studies on stilbenes and CRC.
- Focus on epigenetic mechanisms, specifically DNA methylation.
- Analysis of molecular pathways modulated by stilbenes.
Main Results:
- Stilbenes can modify aberrant DNA methylation, offering potential CRC therapeutic avenues.
- Preclinical studies indicate effective DNA methylation modulation by stilbenes with minimal adverse effects.
- Combination therapies involving stilbenes show promise for CRC treatment.
Conclusions:
- Bioactive stilbenes represent a promising class of compounds for CRC chemoprevention.
- Targeting DNA methylation machinery is a key mechanism of stilbene action in CRC.
- More extensive research is required to confirm the clinical efficacy of stilbenes in CRC.
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