Current Perspectives on Epigenetic Modifications by Dietary Chemopreventive and Herbal Phytochemicals
Yue Guo1, Zheng-Yuan Su2, Ah-Ng Tony Kong2
1Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA ; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
Abstract:
Studies during the last two decades have revealed the involvement of epigenetic modifications in the development of human cancer. It is now recognized that the interplay of DNA methylation, post-translational histone modification, and non-coding RNAs can interact with genetic defects to drive tumorigenesis. The early onset, reversibility, and dynamic nature of such epigenetic modifications enable them to be developed as promising cancer biomarkers and preventive/therapeutic targets. In addition to the recent approval of several epigenetic therapies in the treatment of human cancer, emerging studies have indicated that dietary phytochemicals might exert cancer chemopreventive effects by targeting epigenetic mechanisms. In this review, we will present the current understanding of the epigenetic alterations in carcinogenesis and highlight the potential of targeting these mechanisms to treat/prevent cancer. The latest findings, published in the past three years regarding the effects of dietary phytochemicals in modulating epigenetic mechanisms will also be discussed.
Insights
Epigenetic modifications like DNA methylation and histone changes drive cancer. Targeting these epigenetic alterations and dietary phytochemicals shows promise for cancer prevention and treatment.
Area of Science:
- Oncology
- Epigenetics
- Molecular Biology
Background:
- Epigenetic modifications, including DNA methylation, histone modifications, and non-coding RNAs, are increasingly recognized for their role in human cancer development.
- These epigenetic changes interact with genetic defects, contributing to tumorigenesis.
- The dynamic and reversible nature of epigenetic alterations makes them attractive targets for cancer therapy and biomarkers.
Purpose of the Study:
- To review the current understanding of epigenetic alterations in carcinogenesis.
- To highlight the potential of targeting epigenetic mechanisms for cancer treatment and prevention.
- To discuss recent findings on dietary phytochemicals modulating epigenetic mechanisms for cancer chemoprevention.
Main Methods:
- Literature review of studies on epigenetic modifications in cancer.
- Analysis of recent research (past three years) on dietary phytochemicals and epigenetics.
- Synthesis of current knowledge on epigenetic alterations and therapeutic strategies.
Main Results:
- Epigenetic modifications are integral to cancer development, interacting with genetic factors.
- Epigenetic therapies have gained approval for treating human cancers.
- Dietary phytochemicals demonstrate potential in cancer chemoprevention by targeting epigenetic pathways.
Conclusions:
- Targeting epigenetic alterations offers a promising strategy for cancer treatment and prevention.
- Dietary phytochemicals represent a potential avenue for cancer chemoprevention through epigenetic modulation.
- Further research into epigenetic mechanisms and phytochemical interventions is warranted.
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