Incorporating Mitochondrial Gene Expression Changes Within a Testable Mathematical Model for Alzheimer's Disease:
Morgan G Shelton1, Kimberly A Kerns2, Frank J Castora2,3
1Department of Chemistry, The College of William and Mary, Williamsburg, VA, USA.
Journal of Alzheimer'S Disease : JAD
|September 12, 2022
Summary
New Alzheimer's disease research links cellular respiration dysfunction to amyloid plaques and tau tangles. Protective changes in SIRT1 and AMPK expression offer potential therapeutic targets for Alzheimer's disease.
Area of Science:
- Biochemistry
- Neuroscience
- Computational Biology
Background:
- Alzheimer's disease (AD) pathogenesis involves amyloid-β plaque and tau tangle aggregation.
- These pathological changes are preceded by cellular respiration dysregulation and reactive oxygen species production.
- Distinct gene expression patterns correlate with these metabolic alterations.
Purpose of the Study:
- To develop a testable mathematical model for AD by integrating proteomic and gene expression data.
- To identify potential therapeutic targets for AD through model manipulation.
- To investigate the role of metabolic enzyme activity in maintaining cellular respiration.
Main Methods:
- Metabolic flux analysis of sirtuin stress response pathways.
- Integration of mitochondrial gene expression data with proteomic data.
- Development of a novel mathematical model for Alzheimer's disease.
Main Results:
- Dysregulation of cellular respiration and reactive oxygen species production precede AD hallmark pathologies.
- Sirtuin 1 (SIRT1) and AMP-activated protein kinase (AMPK) expression changes show protective effects.
- The study identified specific metabolic enzyme activities crucial for respiratory function.
Conclusions:
- A new mathematical model for AD was constructed by combining mitochondrial gene expression and protein data.
- This model offers a viable approach for testing the efficacy of potential AD therapeutics.
- Modulating SIRT1 and AMPK expression represents a promising therapeutic strategy for Alzheimer's disease.
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