Cited by 129Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Alzheimer’s disease: Ablating single master site abolishes tau hyperphosphorylation

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Stefanoska, Kristie, Gajwani, Mehul, Tan, Amanda R. P., Ahel, Holly I., Asih, Prita R., Volkerling, Alexander, Poljak, Anne, Ittner, Arne·2022·Science Advances

Abstract

Hyperphosphorylation of the neuronal tau protein is a hallmark of neurodegenerative tauopathies such as Alzheimer’s disease. A central unanswered question is why tau becomes progressively hyperphosphorylated. Here, we show that tau phosphorylation is governed by interdependence— a mechanistic link between initial site-specific and subsequent multi-site phosphorylation. Systematic assessment of site interdependence identified distinct residues (threonine-50, threonine-69, and threonine-181) as master sites that determine propagation of phosphorylation at multiple epitopes. CRISPR point mutation and expression of human tau in Alzheimer’s mice showed that site interdependence governs physiologic and amyloid-associated multi-site phosphorylation and cognitive deficits, respectively. Combined targeting of master sites and p38α, the most central tau kinase linked to interdependence, synergistically ablated hyperphosphorylation. In summary, our work delineates how complex tau phosphorylation arises to inform therapeutic and biomarker design for tauopathies.

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Authors
Stefanoska, K., Gajwani, M., Tan, A. R. P., Ahel, H. I., Asih, P. R., Volkerling, A., Poljak, A., & Ittner, A.
Affiliations
  • Flinders University (AU)
  • Monash University (AU)
  • The University of Sydney (AU)
  • UNSW Sydney (AU)
Corresponding author
  • Stefanoska, Kristie
  • Ittner, Arne
Venue
Science Advances
Published
2022-07-08
Volume
8
Issue
27
Pages
eabl8809-eabl8809
ISSN
2375-2548 (ISSN-L)
OpenAlex
W4286246004
Cited by
128
References
74
Citations by year
2026: 30 · 2025: 38 · 2024: 33 · 2023: 25 · 2022: 2
FWCI
15.31
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Science Advances (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
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, tau hyperphosphorylation, tauopathy, cognitive impairment, biomarkers
MeSH terms
Alzheimer Disease, Animals, Humans, Phosphorylation, Threonine, tau Proteins, Tauopathies, Mice

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