Cited by 284Alzheimer's disease research and treatmentsMicrotubule and mitosis dynamicsNeuroinflammation and Neurodegeneration Mechanisms

The DOI matches its Crossref record; 85 of the 85 references it cites were found in a registry or an index.

Amyloid-β oligomers induce synaptic damage via Tau-dependent microtubule severing by TTLL6 and spastin

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Abstract

Mislocalization and aggregation of Aβ and Tau combined with loss of synapses and microtubules (MTs) are hallmarks of Alzheimer disease. We exposed mature primary neurons to Aβ oligomers and analysed changes in the Tau/MT system. MT breakdown occurs in dendrites invaded by Tau (Tau missorting) and is mediated by spastin, an MT-severing enzyme. Spastin is recruited by MT polyglutamylation, induced by Tau missorting triggered translocalization of TTLL6 (Tubulin-Tyrosine-Ligase-Like-6) into dendrites. Consequences are spine loss and mitochondria and neurofilament mislocalization. Missorted Tau is not axonally derived, as shown by axonal retention of photoconvertible Dendra2-Tau, but newly synthesized. Recovery from Aβ insult occurs after Aβ oligomers lose their toxicity and requires the kinase MARK (Microtubule-Affinity-Regulating-Kinase). In neurons derived from Tau-knockout mice, MTs and synapses are resistant to Aβ toxicity because TTLL6 mislocalization and MT polyglutamylation are prevented; hence no spastin recruitment and no MT breakdown occur, enabling faster recovery. Reintroduction of Tau re-establishes Aβ-induced toxicity in TauKO neurons, which requires phosphorylation of Tau's KXGS motifs. Transgenic mice overexpressing Tau show TTLL6 translocalization into dendrites and decreased MT stability. The results provide a rationale for MT stabilization as a therapeutic approach.

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Crossref · 10.1038/emboj.2013.207

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Metadata

Authors
Zempel, H., Luedtke, J., Kumar, Y., Biernat, J., Dawson, H., Mandelkow, E., & Mandelkow, E.
Affiliations
  • German Center for Neurodegenerative Diseases (DE)
  • Duke Medical Center (US)
  • Center of Advanced European Studies and Research (DE)
Corresponding author
Mandelkow, Eva‐Maria
Venue
The EMBO Journal
Published
2013-09-24
Volume
32
Issue
22
Pages
2920-2937
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2122620510
Cited by
283
References
85
Citations by year
2026: 15 · 2025: 18 · 2024: 23 · 2023: 15 · 2022: 24 · 2021: 17 · 2020: 25 · 2019: 16 · 2018: 22 · 2017: 18 · 2016: 34 · 2015: 26 · 2014: 26 · 2013: 3
FWCI
20.60
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DZNE Pub (submittedVersion)
Funders
  • Wellcome Trust (089703)
  • Deutsches Zentrum für Neurodegenerative Erkrankungen
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
amyloid-beta oligomers, tau protein, Alzheimer's disease, microtubule severing, spastin, synaptic damage, dendritic microtubules, MARK kinases, tau phosphorylation, synaptic loss, microtubule stabilization
MeSH terms
Spastin, Adenosine Triphosphatases, Animals, Cells, Cultured, Microtubules, Peptide Synthases, Synapses, Amyloid beta-Peptides, tau Proteins, Mice, Knockout, Glutamic Acid, Mice, Rats

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