Cited by 82Alzheimer's disease research and treatmentsParkinson's Disease Mechanisms and TreatmentsNeuroinflammation and Neurodegeneration Mechanisms

Stimulatory effect of α‐synuclein on the tau‐phosphorylation by GSK‐3 β

Kawakami, Fumitaka, Suzuki, Minori, Shimada, Naoki, Kagiya, Go, Ohta, Etsuro, Tamura, Kei, Maruyama, Hiroko, Ichikawa, Takafumi·2011·The FEBS Journal

Abstract

Hyperphosphorylation of tau protein (tau) causes neurodegenerative diseases such as Alzheimer’s disease (AD). Recent studies of the physiological correlation between tau and α‐synuclein (α‐SN) have demonstrated that: (a) phosphorylated tau is also present in Lewy bodies, which are cytoplasmic inclusions formed by abnormal aggregation of α‐SN; and (b) the neurotoxin 1‐methyl‐4‐phenyl‐1,2,3,6‐tetrahydropyridine (MPTP) increases the phosphorylation of tau as well as the protein level of α‐SN in cultured neuronal cells, and also in mice. However, the molecular mechanism responsible for the α‐SN‐mediated hyperphosphorylation of tau remains to be elucidated. In this in vitro study, we found that: (a) α‐SN directly stimulates the phosphorylation of tau by glycogen synthase kinase‐3β (GSK‐3β), (b) α‐SN forms a heterotrimeric complex with tau and GSK‐3β, and (c) the nonamyloid beta component (NAC) domain and an acidic region of α‐SN are responsible for the stimulation of GSK‐3β‐mediated tau phosphorylation. Thus, it is concluded that α‐SN functions as a connecting mediator for tau and GSK‐3β, resulting in GSK‐3β‐mediated tau phosphorylation. Because the expression of α‐SN is promoted by oxidative stress, the accumulation of α‐SN induced by such stress may directly induce the hyperphosphorylation of tau by GSK‐3β. Furthermore, we found that heat shock protein 70 (Hsp70) suppresses the α‐SN‐induced phosphorylation of tau by GSK‐3β through its direct binding to α‐SN, suggesting that Hsp70 acts as a physiological suppressor of α‐SN‐mediated tau hyperphosphorylation. These results suggest that the cellular level of Hsp70 may be a novel therapeutic target to counteract α‐SN‐mediated tau phosphorylation in the initial stage of neurodegenerative disease. Structured digital abstract GSK3Bphosphorylates GSK3B by protein kinase assay (View interaction) TAU binds to ‐SN by pull down (View interaction) GSK3Bphosphorylates TAU by protein kinase assay (View Interaction: 1, 2, 3, 4) TAU physically interacts with ‐SN and HSP70 by pull down (View interaction) TAU physically interacts with ‐SN and GSK3B by pull down (View interaction) GSK3Bbinds to ‐SN by pull down (View interaction) GSK3B physically interacts with ‐SN and HSP70 by pull down (View interaction) HSP70 binds to ‐SN by pull down (View interaction) GSK3Bphosphorylates Gs by protein kinase assay (View interaction)

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Crossref · 10.1111/j.1742-4658.2011.08389.x

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  • The αSyn-NAC region can directly mediate GSK3β activity by inducing GSK3β autophosphorylation, leading to GSK3β-mediated tau hyperphosphorylation.

    “the αSyn-NAC region can directly mediate the activity of GSK3β by inducing GSK3β autophosphorylation leading to GSK3β-mediated tau-hyperphosphorylation [180].”

    From α-synuclein in the pathophysiology of Alzheimer’s disease (2019) · cites this paper as [180]

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Authors
Kawakami, F., Suzuki, M., Shimada, N., Kagiya, G., Ohta, E., Tamura, K., Maruyama, H., & Ichikawa, T.
Affiliations
Kitasato University (JP)
Venue
The FEBS Journal
Publisher
Wiley
Published
2011-10-31
Volume
278
Issue
24
Pages
4895-4904
ISSN
  • 1742-464X (ISSN-L)
  • 1742-4658
OpenAlex
W1579214214
Cited by
82
References
29
Citations by year
2026: 6 · 2025: 8 · 2024: 2 · 2023: 5 · 2022: 3 · 2021: 4 · 2020: 12 · 2019: 4 · 2018: 6 · 2017: 5 · 2016: 4 · 2015: 2 · 2014: 11 · 2013: 4 · 2012: 5
FWCI
4.58
Type
journal article
Language
en
Open access
closed
Locations
  • FEBS Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (21591618)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
alpha-synuclein, tau hyperphosphorylation, glycogen synthase kinase-3β, Lewy bodies, Alzheimer's disease, HSP70, oxidative stress, protein-protein interaction, neurodegeneration, therapeutic target, MPTP, Lewy body pathology
MeSH terms
Glycogen Synthase Kinase 3 beta, Humans, Phosphorylation, tau Proteins, HSP70 Heat-Shock Proteins, Glycogen Synthase Kinase 3, alpha-Synuclein, gamma-Synuclein, beta-Synuclein

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