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Nrf2 Pathway in Age-Related Neurological Disorders: Insights into MicroRNAs
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Journal Article
Nrf2 Pathway in Age-Related Neurological Disorders: Insights into MicroRNAs
2018
Overview
A general hallmark of neurological diseases is the loss of redox homeostasis that triggers oxidative damages to biomolecules compromising neuronal function. Under physiological conditions the steady-state concentrations of reactive oxygen species (ROS) and reactive nitrogen species (RNS) are finely regulated for proper cellular functions. Reduced surveillance of endogenous antioxidant defenses and/or increased ROS/RNS production leads to oxidative stress with consequent alteration of physiological processes. Neuronal cells are particularly susceptible to ROS/RNS due to their biochemical composition. Overwhelming evidences indicate that nuclear factor (erythroid-derived 2)-like 2 (Nrf2)-linked pathways are involved in protective mechanisms against oxidative stress by regulating antioxidant and phase II detoxifying genes. As such, Nrf2 deregulation has been linked to both aging and pathogenesis of many human chronic diseases, including neurodegenerative ones such as Parkinson’s disease, Alzheimer’s disease and amyotrophic lateral sclerosis. Nrf2 activity is tightly regulated by a fine balance between positive and negative modulators. A better understanding of the regulatory mechanisms underlying Nrf2 activity could help to develop novel therapeutic interventions to prevent, slow down or possibly reverse various pathological states. To this end, microRNAs (miRs) are attractive candidates because they are linked to intracellular redox status being regulated and, post-transcriptionally, regulating key components of ROS/RNS pathways, including Nrf2.
Publisher
S. Karger AG,Cell Physiol Biochem Press GmbH & Co KG
Subject
/ Amyotrophic lateral sclerosis
/ Animals
/ Enzymes
/ Genomics
/ Humans
/ Ischemia
/ Kinases
/ Lipids
/ Neurodegenerative Diseases - genetics
/ Neurodegenerative Diseases - metabolism
/ Neurodegenerative Diseases - pathology
/ NF-E2-Related Factor 2 - genetics
/ NF-E2-Related Factor 2 - metabolism
/ Proteins
/ Review
/ Stroke
