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Dietary Polyphenols Remodel DNA Methylation Patterns of NRF2 in Chronic Disease
Srinivasaragavan Divyajanani1, Kannan Harithpriya1, Kumar Ganesan2
1Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603210, Tamil Nadu, India.
Abstract:
The nuclear factor erythroid 2-related factor 2 (NRF2) is a transcription factor crucial in regulating cellular homeostasis and apoptosis. The NRF2 gene has been implicated in various biological activities, including antioxidant, anti-inflammatory, and anticancer properties. NRF2 can be regulated genetically and epigenetically at the transcriptional, post-transcriptional, and translational levels. Although DNA methylation is one of the critical biological processes vital for gene expression, sometimes, anomalous methylation patterns result in the dysregulation of genes and consequent diseases and disorders. Several studies have reported promoter hypermethylation downregulated NRF2 expression and its downstream targets. In contrast to the unalterable nature of genetic patterns, epigenetic changes can be reversed, opening up new possibilities in developing therapies for various metabolic disorders and diseases. This review discusses the current state of the NRF2-mediated antioxidative and chemopreventive activities of several natural phytochemicals, including sulforaphane, resveratrol, curcumin, luteolin, corosolic acid, apigenin, and most other compounds that have been found to activate NRF2. This epigenetic reversal of hypermethylated NRF2 states provides new opportunities for research into dietary phytochemistry that affects the human epigenome and the possibility for cutting-edge approaches to target NRF2-mediated signaling to prevent chronic disorders.
Insights
Nuclear factor erythroid 2-related factor 2 (NRF2) regulates cellular processes. Epigenetic modifications, like DNA methylation, can alter NRF2 expression, offering therapeutic targets for diseases through phytochemical activation.
Area of Science:
- Molecular Biology
- Epigenetics
- Cellular Homeostasis
Background:
- Nuclear factor erythroid 2-related factor 2 (NRF2) is a key transcription factor regulating cellular antioxidant and anti-inflammatory responses.
- NRF2 activity is modulated by genetic and epigenetic mechanisms, including DNA methylation.
- Aberrant NRF2 methylation patterns are linked to various diseases.
Purpose of the Study:
- To review the role of NRF2 in cellular homeostasis and disease.
- To explore the epigenetic regulation of NRF2, particularly DNA methylation.
- To discuss the potential of natural phytochemicals in modulating NRF2 activity for therapeutic benefit.
Main Methods:
- Literature review of studies on NRF2 regulation and function.
- Analysis of research on epigenetic modifications affecting NRF2 expression.
- Compilation of data on phytochemicals that activate NRF2.
Main Results:
- Promoter hypermethylation of NRF2 has been shown to downregulate its expression.
- Epigenetic changes affecting NRF2 are potentially reversible, unlike genetic mutations.
- Numerous natural compounds, including sulforaphane and resveratrol, activate NRF2.
Conclusions:
- Reversing hypermethylated NRF2 states via epigenetic modifications presents therapeutic opportunities.
- Dietary phytochemistry can influence the human epigenome and NRF2 signaling.
- Targeting NRF2 offers a promising strategy for preventing and treating chronic disorders.
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