Cited by 280Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroscience and Neuropharmacology Research

Dendritic Tau in Alzheimer’s Disease

Open access
Ittner, Arne, Ittner, Lars M.·2018·Neuron

Abstract

The microtubule-associated protein tau and amyloid-β (Aβ) are key players in Alzheimer's disease (AD). Aβ and tau are linked in a molecular pathway at the post-synapse with tau-dependent synaptic dysfunction being a major pathomechanism in AD. Recent work on site-specific modification of dendritic and more specifically post-synaptic tau has revealed new endogenous functions of tau that limits synaptic Aβ toxicity. Thus, molecular studies opened a new perspective on tau, placing it at the center of neurotoxic and neuroprotective signaling at the post-synapse. Here, we review recent advances on tau in the dendritic compartments, with implications for understanding and treatment of AD and related neurological conditions.

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Crossref · 10.1016/j.neuron.2018.06.003

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179 of 179 references verified0 citation errors · 0 not checkable

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  • Tau is significantly elevated in the cerebrospinal fluid of AD patients, and its increase is an early event before the onset of clinical signs.

    “Indeed, evidence shows that tau is significantly elevated in the cerebrospinal fluid (CSF) of AD patients, and its increase is an early event before the onset of the clinical signs [22].”
  • Both total and phosphorylated tau are increased in the CSF of AD patients and can predict the progression of the disease.

    “Furthermore, both total and phosphorylated tau (p-tau) are increased in the CSF of AD patients and can predict the progression of the disease [22,30,31].”
  • These same mechanisms may render neurons vulnerable to excitotoxicity, as tau-dependent Fyn-PSD-95-NMDAR coupling amplifies glutamate receptor activation under pathological conditions.

    “However, these same mechanisms may render neurons vulnerable to excitotoxicity, as tau-dependent Fyn-PSD-95-NMDAR coupling amplifies glutamate receptor activation under pathological conditions [52, 124].”
  • Hyperphosphorylated tau spreads gradually from the post synaptic site to the dendrites and the cell body, and from the axon to other neurons by intra-axonal connections, resulting in synaptic dysfunction contributing to dementia and neurodegeneration.

    “This hyperphosphorylated tau spreads gradually from the post synaptic site to the dendrites and the cell body, finally from the axon to other neurons by intra-axonal connections. This process results in synaptic dysfunction contributing to dementia and neurodegeneration [15].”

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Authors
Ittner, A., & Ittner, L. M.
Affiliations
UNSW Sydney (AU)
Corresponding author
Ittner, Lars M.
Venue
Neuron
Publisher
Elsevier BV
Published
2018-07
Volume
99
Issue
1
Pages
13-27
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2815697343
Cited by
278
References
179
Citations by year
2026: 20 · 2025: 34 · 2024: 37 · 2023: 31 · 2022: 31 · 2021: 40 · 2020: 58 · 2019: 21 · 2018: 6
FWCI
4.13
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Health and Medical Research Council (1132524, 1136241, 1081916, 1143848, 1143978)
  • Australian Research Council (609-2015-07, DP170100781, DP170100843)
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 › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
tau protein, Alzheimer's disease, amyloid-beta, dendrites, synaptic dysfunction, neuroprotection, microtubule-associated proteins
MeSH terms
Alzheimer Disease, Dendrites, Humans, Neurons, Synapses, Amyloid beta-Peptides, Neurofibrillary Tangles, tau Proteins, Plaque, Amyloid

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