Cited by 272Alzheimer's disease research and treatmentsNeuroscience and Neuropharmacology ResearchNeuroinflammation and Neurodegeneration Mechanisms

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

Activity-Dependent Tau Protein Translocation to Excitatory Synapse Is Disrupted by Exposure to Amyloid-Beta Oligomers

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Abstract

Tau is a microtubule-associated protein well known for its stabilization of microtubules in axons. Recently, it has emerged that tau participates in synaptic function as part of the molecular pathway leading to amyloid-beta (Aβ)-driven synaptotoxicity in the context of Alzheimer's disease. Here, we report the implication of tau in the profound functional synaptic modification associated with synaptic plasticity. By exposing murine cultured cortical neurons to a pharmacological synaptic activation, we induced translocation of endogenous tau from the dendritic to the postsynaptic compartment. We observed similar tau translocation to the postsynaptic fraction in acute hippocampal slices subjected to long-term potentiation. When we performed live confocal microscopy on cortical neurons transfected with human-tau-GFP, we visualized an activity-dependent accumulation of tau in the postsynaptic density. Coprecipitation using phalloidin revealed that tau interacts with the most predominant cytoskeletal component present, filamentous actin. Finally, when we exposed cortical cultures to 100 n m human synthetic Aβ oligomers (Aβo's) for 15 min, we induced mislocalization of tau into the spines under resting conditions and abrogated subsequent activity-dependent synaptic tau translocation. These changes in synaptic tau dynamics may rely on a difference between physiological and pathological phosphorylation of tau. Together, these results suggest that intense synaptic activity drives tau to the postsynaptic density of excitatory synapses and that Aβo-driven tau translocation to the spine deserves further investigation as a key event toward synaptotoxicity in neurodegenerative diseases.

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Crossref · 10.1523/jneurosci.4261-13.2014

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Metadata

Authors
Frandemiche, M. L., De Seranno, S., Rush, T., Borel, E., Elie, A., Arnal, I., Lanté, F., & Buisson, A.
Affiliations
Inserm (FR)
Venue
The Journal of Neuroscience
Published
2014-04-23
Volume
34
Issue
17
Pages
6084-6097
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2006955217
Cited by
272
References
48
Citations by year
2026: 11 · 2025: 21 · 2024: 27 · 2023: 9 · 2022: 18 · 2021: 30 · 2020: 29 · 2019: 26 · 2018: 32 · 2017: 23 · 2016: 25 · 2015: 18 · 2014: 3
FWCI
15.34
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fondation Neurodis
  • Agence Nationale de la Recherche
  • Institut National de la Santé et de la Recherche Médicale
  • Centre National de la Recherche Scientifique
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
tau protein, amyloid-beta oligomers, synaptic plasticity, postsynaptic density, excitatory synapses, synaptotoxicity, Alzheimer's disease, long-term potentiation, actin, tau phosphorylation, dendritic spines, cortical neurons, hippocampus
MeSH terms
Animals, Cells, Cultured, Cerebral Cortex, Dendrites, Neurons, Peptide Fragments, Phosphorylation, Synapses, Amyloid beta-Peptides, tau Proteins, Protein Transport, Mice

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