Cited by 118Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Functional screening of Alzheimer risk loci identifies PTK2B as an in vivo modulator and early marker of Tau pathology

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Dourlen, P, Fernandez-Gomez, F J, Dupont, C, Grenier-Boley, B, Bellenguez, C, Obriot, H, Caillierez, R, Sottejeau, Y +13 more·2017·Molecular Psychiatry

Abstract

A recent genome-wide association meta-analysis for Alzheimer's disease (AD) identified 19 risk loci (in addition to APOE) in which the functional genes are unknown. Using Drosophila, we screened 296 constructs targeting orthologs of 54 candidate risk genes within these loci for their ability to modify Tau neurotoxicity by quantifying the size of >6000 eyes. Besides Drosophila Amph (ortholog of BIN1), which we previously implicated in Tau pathology, we identified p130CAS (CASS4), Eph (EPHA1), Fak (PTK2B) and Rab3-GEF (MADD) as Tau toxicity modulators. Of these, the focal adhesion kinase Fak behaved as a strong Tau toxicity suppressor in both the eye and an independent focal adhesion-related wing blister assay. Accordingly, the human Tau and PTK2B proteins biochemically interacted in vitro and PTK2B co-localized with hyperphosphorylated and oligomeric Tau in progressive pathological stages in the brains of AD patients and transgenic Tau mice. These data indicate that PTK2B acts as an early marker and in vivo modulator of Tau toxicity.

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Authors
Dourlen, P., Fernandez-Gomez, F. J., Dupont, C., Grenier-Boley, B., Bellenguez, C., Obriot, H., Caillierez, R., Sottejeau, Y., Chapuis, J., Bretteville, A., Abdelfettah, F., Delay, C., Malmanche, N., Soininen, H., Hiltunen, M., Galas, M.-C., Amouyel, P., Sergeant, N., Buée, L., Lambert, J.-C., & Dermaut, B.
Affiliations
  • Inserm (FR)
  • University of Eastern Finland (FI)
Corresponding author
  • Dourlen, P
  • Lambert, J-C
  • Dermaut, B
Venue
Molecular Psychiatry
Published
2016-04-26
Volume
22
Issue
6
Pages
874-883
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W2342749204
Cited by
118
References
39
Citations by year
2026: 8 · 2025: 6 · 2024: 7 · 2023: 11 · 2022: 13 · 2021: 14 · 2020: 7 · 2019: 23 · 2018: 14 · 2017: 13 · 2016: 2
FWCI
13.94
Type
journal article
Language
en
Open access
Locations
  • Molecular Psychiatry (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • UEF eRepo (University of Eastern Finland) (submittedVersion, cc-by)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion, cc-by)
Funders
  • Alzheimer's Association (BFG-14-318355)
  • Itä-Suomen Yliopisto
  • Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease
  • European Commission (305299, 601055)
  • Agence Nationale de la Recherche (ANR-11-LABX-0009)
  • Academy of Finland (V16001)
  • Belgian Federal Science Policy Office (P7/16)
  • Fondation pour la Recherche Médicale
  • Kuopion Yliopistollinen Sairaala (VTR grant V16001, V16001)
  • Centre National de la Recherche Scientifique
  • Sigrid Juséliuksen Säätiö
  • National Institutes of Health (NIH P40OD018537, P40OD018537)
  • National Institute of General Medical Sciences (R01GM084947, GM084947)
  • Institute of Genetics
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
Alzheimer's disease, Pyk2, focal adhesion kinase, tau pathology, tau toxicity, Drosophila, functional screening, BIN1, EphA1, MADD, hyperphosphorylated tau, early biomarkers
MeSH terms
Alzheimer Disease, Animals, Disease Models, Animal, Drosophila, Humans, Risk Factors, Biomarkers, tau Proteins, Genetic Predisposition to Disease, Focal Adhesion Kinase 2, Genome-Wide Association Study, Genetic Loci

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