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Assay Development for High Content Quantification of Sod1 Mutant Protein Aggregate Formation in Living Cells
Published on: October 4, 2017
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Implication of post-translationally modified SOD1 in pathological aging
Kashfia Shafiq1,2, Nitesh Sanghai3, Ying Guo1,4
1Department of Human Anatomy and Cell Science, Rady Faculty of Health Science, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada.
Geroscience
|February 20, 2021
Summary
Oxidative stress modifies superoxide dismutase 1 (SOD1), causing misfolding and aggregation. This process accelerates aging and contributes to neurodegenerative diseases like ALS, Alzheimer's, and Parkinson's.
Area of Science:
- Neuroscience
- Biochemistry
- Gerontology
Background:
- Aging is characterized by a decline in cellular function and increased susceptibility to disease.
- Neurodegenerative diseases such as ALS, AD, and PD are prevalent in aging populations.
- Oxidative stress is implicated in the aging process and various age-related pathologies.
Purpose of the Study:
- To investigate the role of superoxide dismutase 1 (SOD1) in pathological aging.
- To explore the link between oxidative stress, SOD1 modification, and neurodegenerative diseases.
- To propose SOD1 as a key mechanism in accelerated aging.
Main Methods:
- Review of existing literature on SOD1, oxidative stress, and neurodegenerative diseases.
- Analysis of post-translational modifications of SOD1 induced by aging-associated oxidative stress.
- Examination of SOD1 aggregate formation and prion-like propagation.
Main Results:
- Post-translational modifications of SOD1 by oxidative stress lead to misfolding and aggregation.
- Misfolded SOD1 forms aggregates that propagate intercellularly, similar to prions.
- These modified SOD1 conformations are present in brain tissues affected by ALS, AD, and PD.
Conclusions:
- Modified SOD1 is a significant factor in the pathogenesis of age-related neurodegenerative diseases.
- SOD1 modification by oxidative stress represents a mechanism for accelerated or pathological aging.
- Targeting SOD1 modifications may offer therapeutic strategies for neurodegenerative conditions.
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