Cited by 154Parkinson's Disease Mechanisms and TreatmentsAlzheimer's disease research and treatmentsNuclear Receptors and Signaling

Tau accelerates α-synuclein aggregation and spreading in Parkinson’s disease

Pan, Lina, Li, Chunrui, Meng, Lanxia, Tian, Ye, He, Mingyang, Yuan, Xin, Zhang, Guoxin, Zhang, Zhaohui +3 more·2022·Brain

Abstract

The aggregation and prion-like propagation of α-synuclein are involved in the pathogenesis of Parkinson's disease. However, the underlying mechanisms regulating the assembly and spreading of α-synuclein fibrils remain poorly understood. Tau co-deposits with α-synuclein in the brains of Parkinson's disease patients, suggesting a pathological interplay between them. Here we show that tau interacts with α-synuclein and accelerates its aggregation. Compared with pure α-synuclein fibrils, the tau-modified α-synuclein fibrils show enhanced seeding activity, inducing mitochondrial dysfunction, synaptic impairment and neurotoxicity in vitro. Injection of the tau-modified α-synuclein fibrils into the striatum of mice induces more severe α-synuclein pathology, motor dysfunction and cognitive impairment when compared with the mice injected with pure α-synuclein fibrils. Knockout of tau attenuates the propagation of α-synuclein pathology and Parkinson's disease-like symptoms both in mice injected with α-syn fibrils and α-syn A53T transgenic mice. In conclusion, tau facilitates α-synuclein aggregation and propagation in Parkinson's disease.

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Crossref · 10.1093/brain/awac171

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Authors
Pan, L., Li, C., Meng, L., Tian, Y., He, M., Yuan, X., Zhang, G., Zhang, Z., Xiong, J., Chen, G., & Zhang, Z.
Affiliations
  • Renmin Hospital of Wuhan University (CN)
  • Hubei Provincial Institute for Food Supervision and Test , Wuhan 430070 , China
  • Emory University (US)
Corresponding author
Zhang, Zhentao
Venue
Brain
Published
2022-05-13
Volume
145
Issue
10
Pages
3454-3471
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W4280555112
Cited by
154
References
83
Citations by year
2026: 41 · 2025: 48 · 2024: 36 · 2023: 28 · 2022: 1
FWCI
14.88
Type
journal article
Language
en
Open access
closed
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Key Basic Research Program of China (2019YFE0115900)
  • National Natural Science Foundation of China (81771382, 81822016, 81901090, 81901291)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
tau protein, alpha-synuclein, Parkinson's disease, protein aggregation, prion-like propagation, seeding activity, mitochondrial dysfunction, synaptic dysfunction, neurotoxicity, A53T alpha-synuclein, motor impairment, cognitive impairment
MeSH terms
Synucleinopathies, Animals, Mice, Transgenic, Parkinson Disease, Prions, Mice, Knockout, Mice, alpha-Synuclein

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