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Mitigation of Cardiovascular Disease and Toxicity through NRF2 Signalling
James A Roberts1, Richard D Rainbow1,2, Parveen Sharma1,2
1Department of Cardiovascular and Metabolic Medicine, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UK.
Abstract:
Cardiovascular toxicity and diseases are phenomena that have a vastly detrimental impact on morbidity and mortality. The pathophysiology driving the development of these conditions is multifactorial but commonly includes the perturbance of reactive oxygen species (ROS) signalling, iron homeostasis and mitochondrial bioenergetics. The transcription factor nuclear factor erythroid 2 (NFE2)-related factor 2 (NRF2), a master regulator of cytoprotective responses, drives the expression of genes that provide resistance to oxidative, electrophilic and xenobiotic stresses. Recent research has suggested that stimulation of the NRF2 signalling pathway can alleviate cardiotoxicity and hallmarks of cardiovascular disease progression. However, dysregulation of NRF2 dynamic responses can be severely impacted by ageing processes and off-target toxicity from clinical medicines including anthracycline chemotherapeutics, rendering cells of the cardiovascular system susceptible to toxicity and subsequent tissue dysfunction. This review addresses the current understanding of NRF2 mechanisms under homeostatic and cardiovascular pathophysiological conditions within the context of wider implications for this diverse transcription factor.
Insights
The nuclear factor erythroid 2-related factor 2 (NRF2) pathway protects against cardiovascular disease. However, aging and certain drugs can disrupt NRF2, increasing heart toxicity and dysfunction.
Area of Science:
- Biochemistry
- Molecular Biology
- Cardiology
Background:
- Cardiovascular diseases (CVDs) significantly increase morbidity and mortality.
- Key pathophysiological factors include disrupted reactive oxygen species (ROS) signaling, iron homeostasis, and mitochondrial function.
- The transcription factor NRF2 regulates cytoprotective genes against oxidative and xenobiotic stresses.
Purpose of the Study:
- To review the role of NRF2 in cardiovascular health and disease.
- To explore how NRF2 dysregulation impacts cardiotoxicity.
- To discuss the implications of NRF2 modulation for cardiovascular conditions.
Main Methods:
- Literature review of NRF2 signaling pathways.
- Analysis of NRF2's role in oxidative stress and mitochondrial function.
- Examination of NRF2's interaction with aging and drug-induced cardiotoxicity.
Main Results:
- NRF2 activation shows potential in alleviating cardiotoxicity and CVD progression.
- Aging and chemotherapeutics (e.g., anthracyclines) can impair NRF2 responses.
- Dysregulated NRF2 compromises cardiovascular system resilience.
Conclusions:
- NRF2 is a critical regulator of cardiovascular homeostasis and stress resistance.
- Understanding NRF2 dynamics is crucial for developing strategies against cardiotoxicity.
- Targeting NRF2 may offer therapeutic benefits for cardiovascular diseases.
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