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Targeting Nrf2 for the treatment of Duchenne Muscular Dystrophy
Stephanie Kourakis1, Cara A Timpani2, Judy B de Haan3
1College of Health and Biomedicine, Victoria University, Melbourne, Victoria, Australia.
Abstract:
Imbalances in redox homeostasis can result in oxidative stress, which is implicated in various pathological conditions including the fatal neuromuscular disease Duchenne Muscular Dystrophy (DMD). DMD is a complicated disease, with many druggable targets at the cellular and molecular level including calcium-mediated muscle degeneration; mitochondrial dysfunction; oxidative stress; inflammation; insufficient muscle regeneration and dysregulated protein and organelle maintenance. Previous investigative therapeutics tended to isolate and focus on just one of these targets and, consequently, therapeutic activity has been limited. Nuclear erythroid 2-related factor 2 (Nrf2) is a transcription factor that upregulates many cytoprotective gene products in response to oxidants and other toxic stressors. Unlike other strategies, targeted Nrf2 activation has the potential to simultaneously modulate separate pathological features of DMD to amplify therapeutic benefits. Here, we review the literature providing theoretical context for targeting Nrf2 as a disease modifying treatment against DMD.
Insights
Oxidative stress contributes to Duchenne Muscular Dystrophy (DMD). Activating the Nrf2 pathway offers a promising therapeutic strategy by addressing multiple DMD pathologies simultaneously for enhanced treatment benefits.
Area of Science:
- Biochemistry
- Molecular Biology
- Pathology
Background:
- Oxidative stress and redox homeostasis imbalances are implicated in Duchenne Muscular Dystrophy (DMD).
- DMD presents multiple cellular and molecular pathologies, including muscle degeneration, mitochondrial dysfunction, and inflammation.
- Previous therapeutic approaches targeting single DMD pathologies have shown limited efficacy.
Purpose of the Study:
- To review the literature on targeting the Nrf2 pathway as a disease-modifying treatment for DMD.
- To provide a theoretical basis for Nrf2 activation as a therapeutic strategy for DMD.
Main Methods:
- Literature review of studies investigating redox homeostasis, oxidative stress, and Nrf2 in DMD.
- Analysis of Nrf2's role in regulating cytoprotective genes.
- Evaluation of Nrf2's potential to modulate multiple DMD pathological pathways.
Main Results:
- Nrf2 is a key transcription factor that upregulates cytoprotective genes in response to stressors.
- Targeted Nrf2 activation can simultaneously address diverse pathological features of DMD.
- This approach holds potential for amplified therapeutic benefits compared to single-target strategies.
Conclusions:
- Nrf2 activation represents a promising, multi-targeted therapeutic strategy for Duchenne Muscular Dystrophy.
- Modulating Nrf2 offers a novel approach to disease modification in DMD.
- Further research into Nrf2-targeted therapies is warranted for DMD treatment.
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