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Published on: June 30, 2023
Mitochondrial dysfunction and neurodegeneration in multiple sclerosis.
Kimmy Su1, Dennis Bourdette, Michael Forte
1Vollum Institute, Oregon Health and Science University Portland, OR, USA ; Department of Neurology, Oregon Health and Science University Portland, OR, USA.
Frontiers in Physiology
|July 31, 2013
Summary
Mitochondrial dysfunction, driven by reactive oxygen species and calcium imbalance, contributes to neurodegeneration in multiple sclerosis (MS). Targeting the enzyme p66ShcA shows promise for mitigating this process in MS patients.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Multiple sclerosis (MS) is traditionally viewed as an autoimmune inflammatory disease.
- Current treatments manage relapses but fail to halt progressive functional decline.
- Emerging evidence suggests neurodegeneration plays a significant role in MS pathogenesis.
Purpose of the Study:
- To review evidence supporting mitochondrial dysfunction as a key mechanism in MS neurodegeneration.
- To investigate the role of pathological permeability transition pore (PTP) opening in MS.
- To highlight the involvement of reactive oxygen species (ROS) and calcium dysregulation.
Main Methods:
- Focused review of existing literature.
- In vitro studies on mitochondrial function.
- In vivo investigations utilizing p66ShcA as a target.
Main Results:
- Pathological PTP opening, mediated by ROS and calcium, is implicated in mitochondrial dysfunction.
- Mitochondrial dysfunction is a central factor in MS-related neurodegeneration.
- The mitochondria-targeted enzyme p66ShcA plays a crucial role in this pathway.
Conclusions:
- Mitochondrial dysfunction is a critical component of neurodegeneration in multiple sclerosis.
- Targeting p66ShcA offers a potential therapeutic strategy for MS.
- Understanding the interplay between PTP opening, ROS, and calcium is vital for MS research.
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