Cited by 158Parkinson's Disease Mechanisms and TreatmentsExtracellular vesicles in diseaseNeuroinflammation and Neurodegeneration Mechanisms

α-synuclein transfer through tunneling nanotubes occurs in SH-SY5Y cells and primary brain pericytes from Parkinson’s disease patients

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Dieriks, Birger Victor, Park, Thomas I-H., Fourie, Chantelle, Faull, Richard L. M., Dragunow, Mike, Curtis, Maurice A.·2017·Scientific Reports

Abstract

Parkinson’s disease (PD) is characterized by the presence of inclusions known as Lewy bodies, which mainly consist of α-synuclein (α-syn) aggregates. There is growing evidence that α-syn self-propagates in non-neuronal cells, thereby contributing to the progression and spread of PD pathology in the brain. Tunneling nanotubes (TNTs) are long, thin, F-actin-based membranous channels that connect cells and have been proposed to act as conduits for α-syn transfer between cells. SH-SY5Y cells and primary human brain pericytes, derived from postmortem PD brains, frequently form TNTs that allow α-syn transfer and long-distance electrical coupling between cells. Pericytes in situ contain α-syn precipitates like those seen in neurons. Exchange through TNTs was rapid, but dependent on the size of the protein. Proteins were able to spread throughout a network of cells connected by TNTs. Transfer through TNTs was not restricted to α-syn; fluorescent control proteins and labeled membrane were also exchanged through TNTs. Most importantly the formation of TNTs and transfer continued during mitosis. Together, our results provide a detailed description of TNTs in SH-SY5Y cells and human brain PD pericytes, demonstrating their role in α-syn transfer and further emphasize the importance that non-neuronal cells, such as pericytes play in disease progression.

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  • αSyn has the ability to spread via direct neuron-to-neuron transfer.

    “iii) αSyn has the ability to spread to adjacent cells via secretion in exosomes [209], uptake via endocytosis [210] and cell-surface receptors like HSPGs, or even direct neuron-to-neuron [211, 212] or astrocyte-to-neuron [213] transfer via tunneling nanotubes (Fig. 2).”

    From α-synuclein in the pathophysiology of Alzheimer’s disease (2019) · cites this paper as [212]

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Authors
Dieriks, B. V., Park, T. I.-H., Fourie, C., Faull, R. L. M., Dragunow, M., & Curtis, M. A.
Affiliations
University of Auckland (NZ)
Corresponding author
Curtis, Maurice A.
Venue
Scientific Reports
Published
2017-02-23
Volume
7
Issue
1
Pages
42984-42984
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2590505799
Cited by
158
References
36
Citations by year
2026: 14 · 2025: 11 · 2024: 15 · 2023: 13 · 2022: 29 · 2021: 23 · 2020: 14 · 2019: 16 · 2018: 13 · 2017: 10
FWCI
10.09
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • ResearchSpace (University of Auckland) (submittedVersion, cc-by)
Funders
Hugh Green Foundation
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
alpha-synuclein, tunneling nanotubes, Parkinson's disease, pericytes, SH-SY5Y cells, protein transfer, Lewy bodies, mitosis, intercellular communication
MeSH terms
Brain, Cell Membrane, Cells, Cultured, Humans, Microscopy, Electron, Scanning, Mitosis, Neurons, Parkinson Disease, Lewy Bodies, Microscopy, Confocal, Coculture Techniques, Pericytes, Protein Transport, Nanotubes, alpha-Synuclein, Time-Lapse Imaging

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