Cited by 10Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

FAK-mediated signaling controls amyloid beta overload, learning and memory deficits in a mouse model of Alzheimer’s disease

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Saleh, Bisan, Srikanth, Kolluru D., Sneh, Tal, Yue, Lambert, Pelech, Steven, Elliott, Evan, Gil-Henn, Hava·2022·International Journal of Molecular Sciences

Abstract

The non-receptor focal adhesion kinase (FAK) is highly expressed in the central nervous system during development, where it regulates neurite outgrowth and axon guidance, but its role in the adult healthy and diseased brain, specifically in Alzheimer’s disease (AD), is largely unknown. Using the 3xTg-AD mouse model, which carries three mutations associated with familial Alzheimer’s disease (APP KM670/671NL Swedish, PSEN1 M146V, MAPT P301L) and develops age-related progressive neuropathology including amyloid plaques and Tau tangles, we describe here, for the first time, the in vivo role of FAK in AD pathology. Our data demonstrate that while site-specific knockdown in the hippocampi of 3xTg-AD mice has no effect on learning and memory, hippocampal overexpression of the protein leads to a significant decrease in learning and memory capabilities, which is accompanied by a significant increase in amyloid β (Aβ) load. Furthermore, neuronal morphology is altered following hippocampal overexpression of FAK in these mice. High-throughput proteomics analysis of total and phosphorylated proteins in the hippocampi of FAK overexpressing mice indicates that FAK controls AD-like phenotypes by inhibiting cytoskeletal remodeling in neurons which results in morphological changes, by increasing Tau hyperphosphorylation, and by blocking astrocyte differentiation. FAK activates cell cycle re-entry and consequent cell death while downregulating insulin signaling, thereby increasing insulin resistance and leading to oxidative stress. Our data provide an overview of the signaling networks by which FAK regulates AD pathology and identify FAK as a novel therapeutic target for treating AD.

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Authors
Saleh, B., Srikanth, K. D., Sneh, T., Yue, L., Pelech, S., Elliott, E., & Gil-Henn, H.
Affiliations
  • Bar-Ilan University (IL)
  • University of British Columbia (CA)
Corresponding author
Gil-Henn, Hava
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2022-08-13
Volume
23
Issue
16
Pages
9055
ISSN
1422-0067 (ISSN-L)
OpenAlex
W4293515870
Cited by
10
References
77
Citations by year
2026: 1 · 2025: 4 · 2024: 1 · 2023: 3 · 2022: 1
FWCI
1.39
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Weisfeld Family Foundation
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
focal adhesion kinase, Alzheimer's disease, amyloid-beta, 3xTg-AD mice, learning and memory impairment, hippocampus, neuronal morphology, cytoskeletal remodeling, tau hyperphosphorylation, astrocyte differentiation, cell cycle re-entry, neuronal cell death, insulin resistance, oxidative stress, therapeutic target
MeSH terms
Alzheimer Disease, Animals, Brain, Disease Models, Animal, Memory Disorders, Mice, Transgenic, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, tau Proteins, Mice, Focal Adhesion Protein-Tyrosine Kinases, Focal Adhesion Kinase 1, Plaque, Amyloid

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