Novel Combinatorial Therapeutic Targeting of PAI-1(SERPINE1) Gene Expression in Alzheimer’s Disease
Open accessAbstract
Accumulation of neurotoxic amyloid peptides (Aβ) in the brain, generated by β-site proteolytic processing of the amyloid precursor protein (APP), is the hallmark pathophysiologic feature of Alzheimer's disease. The plasmin-activating cascade, in which urokinase (uPA) and tissue-type (tPA) plasminogen activators convert plasminogen to the broad-spectrum protease plasmin, appears to serve a protective, Aβ-clearing, role in the central nervous system. Plasmin degrades Aβ and catalyzes α- site APP proteolysis generating nontoxic peptides. Plasmin activation in the brain is negatively regulated by the fast-acting clade E serine protease inhibitor (SERPIN) plasminogen activator inhibitor type-1 (PAI-1; SERPINE1) resulting in Aβ accumulation. PAI-1 and its major physiological inducer TGF-β1, moreover, are both increased in Alzheimer's disease models and implicated in the etiology and progression of human neurodegenerative disorders. Current findings support the hypothesis that targeting of PAI-1 function (by small molecule drugs) and/or gene expression (by histone deacetylase inhibitors) may constitute a clinically-relevant molecular approach to the therapy of neurodegenerative diseases associated with increased PAI-1 levels.
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SerpinE1 was downregulated in Plexin-B1-deficient astrocytes.
“Of interest in the context of AD was also the downregulation of SerpinE1 (plasminogen activator inhibitor), whose inhibition has been proposed as a therapeutic strategy to reduce amyloid load49.”
From Regulation of cell distancing in peri-plaque glial nets by Plexin-B1 affects glial activation and amyloid compaction in Alzheimer’s disease (2024) · cites this paper as [49]
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- Authors
- M. Kutz, S., E. Higgins, C., & J. Higgins, P.
- Venue
- Molecular Medicine & Therapeutics
- Publisher
- OMICS Publishing Group
- Published
- 2012
- Volume
- 01
- Issue
- 02
- Pages
- 106-106
- ISSN
- 2324-8769 (ISSN-L)
- PMC
- PMC3703665
- OpenAlex
- W1992301352
- Cited by
- 36
- References
- 28
- Citations by year
- 2026: 4 · 2025: 5 · 2024: 2 · 2023: 2 · 2022: 3 · 2021: 5 · 2020: 6 · 2019: 3 · 2016: 3 · 2015: 2 · 2014: 1
- FWCI
- 0.64
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Molecular Medicine & Therapeutics (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of General Medical Sciences (R01GM057242)
- Topics
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
- Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
- Keywords
- Alzheimer's disease, plasminogen activator inhibitor-1, SERPINE1, amyloid-beta deposition, amyloid precursor protein, TGF-β1, histone deacetylase inhibitors, small molecule drugs, neurodegeneration
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