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The Use of Primary Human Fibroblasts for Monitoring Mitochondrial Phenotypes in the Field of Parkinson's Disease
Published on: October 3, 2012
Ubiquitin-proteasome system and Parkinson's disease
C Warren Olanow1, Kevin St P McNaught
1Department of Neurology, Mount Sinai School of Medicine, New York, New York10029, USA. warren.olanow@mssm.edu
Movement Disorders : Official Journal of the Movement Disorder Society
|September 15, 2006
Summary
Parkinson's disease neurodegeneration may stem from a faulty protein clearance system. Impaired ubiquitin-proteasome system (UPS) function leads to toxic protein buildup, potentially explaining disease mechanisms and suggesting new therapeutic targets.
Area of Science:
- Neuroscience
- Molecular Biology
- Pathology
Background:
- Parkinson's disease (PD) involves neurodegeneration in familial and sporadic forms.
- Accumulation of unwanted proteins is a hallmark of neurodegenerative disorders.
Purpose of the Study:
- To investigate the role of the ubiquitin-proteasome system (UPS) in Parkinson's disease pathogenesis.
- To explore the link between UPS dysfunction and neurodegeneration in PD.
Main Methods:
- Review of genetic, pathological, and experimental evidence.
- Analysis of in vitro and in vivo laboratory experiments on UPS inhibition.
- Correlation of UPS function with PD pathology and clinical features.
Main Results:
- Evidence suggests UPS defects contribute to protein accumulation and cytotoxicity in PD.
- Inhibition of UPS function experimentally induces neurodegeneration and Lewy body-like inclusions.
- The UPS hypothesis explains protein aggregates, Lewy bodies, and age-related vulnerability in PD.
Conclusions:
- A defective ubiquitin-proteasome system (UPS) is a plausible mechanism underlying Parkinson's disease neurodegeneration.
- UPS dysfunction leads to protein aggregation and cytotoxicity, characteristic of PD.
- Targeting the UPS offers potential neuroprotective strategies for Parkinson's disease.
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