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Molecular and Metabolic Insights into Neuroinflammation and Neurodegeneration

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Neurobiology".

Deadline for manuscript submissions: 15 June 2024 | Viewed by 1319

Special Issue Editors


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Guest Editor
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 31-98166 Messina, Italy
Interests: neuroinflammation; neurodegeneration; inflammation; oncology; brain tumor
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Guest Editor
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 31-98166 Messina, Italy
Interests: molecular biology; neuroinflammation; pharmacology; inflammation; oxidative stress
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Inflammation in central nervous system (CNS) is recognized as laying a crucial role in the pathogenesis of several neurodegenerative disorders, such as Parkinson’s (PD), Alzheimer’s (AD), and Huntington’s (HD) diseases, frontotemporal dementia (FTD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS), in addition to acute or chronic neuroinflammatory diseases, such as spinal cord injury (SCI) and traumatic brain injury (TBI). Neuroinflammation may indeed be triggered by various stimuli, like infections, the release of toxic metabolites and abnormal accumulation of proteins, and it is mediated by the cytokines, chemokines, and reactive oxygen species (ROS) released by both resident and peripheral cells. Microglia are involved in immune surveillance in the CNS and, when activated, may counteract injuries with a brief and controlled inflammatory response. However, their dysfunctional activation may lead to uncontrolled inflammation, with the continuous release of pro-inflammatory mediators and even recruitment of peripheral immune cells. Microglia senescence may also affect the progression of neurodegeneration. While reactive microglia may provide both pro- and anti-inflammatory functions, senescent dystrophic microglia are characterized by reduced motility and phagocytosis, increased ROS production, and a pro-inflammatory state; additionally, they display the potential for a significant impact on neuron viability. Furthermore, metabolic and energetic disturbances have recently been determined to be both a consequence and a cause of neurodegeneration. Despite the fact that the causes of these diseases can be polyetiological, they have a wide range of similar molecular and cellular pathophysiological processes, namely protein aggregation, glutamate toxicity, calcium, proteolytic and oxidative stress, neuroinflammation, mitochondrial dysfunction, and others associated with aging.

This Special Issue aims to highlight the numerous metabolic changes in neurodegenerative diseases and related current therapeutic approaches and to provide a more comprehensive overview of the role of neuroinflammation in the development of neurological and neurodegenerative diseases. Contributions from all research areas are welcome, including disease modeling; human neuropathology; biochemical, molecular, and clinical studies; genomics; proteomics, and therapeutic interventions.

Dr. Giovanna Casili
Dr. Marika Lanza
Guest Editors

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Keywords

  • Parkinson’s disease
  • Alzheimer’s disease
  • metabolism
  • inflammation
  • neurodegeneration
  • drug discovery
  • pharmacological therapy

Published Papers (1 paper)

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Research

13 pages, 3844 KiB  
Article
An RNAi-Mediated Reduction in Transcription Factor Nrf-2 Blocks the Positive Effects of Dimethyl Fumarate on Metabolic Stress in Alzheimer’s Disease
by Marika Lanza, Rossella Basilotta, Salvatore Cuzzocrea, Maria Bulzomì, Salvatore Oddo, Giovanna Casili and Emanuela Esposito
Int. J. Mol. Sci. 2023, 24(14), 11303; https://doi.org/10.3390/ijms241411303 - 11 Jul 2023
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Abstract
The prevalence of obesity is rapidly rising around the world, and this will have a significant impact on our society as it is believed to be one of the leading causes of death. One of the main causes of these occurrences is added [...] Read more.
The prevalence of obesity is rapidly rising around the world, and this will have a significant impact on our society as it is believed to be one of the leading causes of death. One of the main causes of these occurrences is added sugar consumption, which is associated with a higher risk of obesity, heart disease, diabetes, and brain illnesses such as Alzheimer’s disease (AD). To this purpose, excess sugar might worsen oxidative damage and brain inflammation: two neuropathological signs of AD. Dimethyl fumarate (DMF) is an orally accessible methyl ester of fumaric acid with putative neuroprotective and immunomodulatory properties. In addition, DMF stimulates the nuclear factor erythroid 2-related factor 2 (Nrf-2), a key regulator of the antioxidant response mechanism in cells. The aim of the current study was to assess the potential therapeutic benefits of DMF in an in vitro model of metabolic stress induced by high and low sugar levels. We discovered that DMF reversed the negative impacts of high and low glucose exposure on the viability and oxidative stress of SH-SY5Y cells. Mechanistically, DMF’s actions were mediated by Nrf-2. To this end, we discovered that DMF boosted the expression of the Nrf-2-regulated genes heme-oxygenase-1 (HO1) and manganese superoxide dismutase (MnSOD). More importantly, we found that inhibiting Nrf-2 expression prevented DMF’s positive effects. Our combined findings suggest that DMF may be a valuable support for treatments for metabolic diseases. Full article
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