Cited by 877Parkinson's Disease Mechanisms and TreatmentsNeuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatments

Direct Transfer of α-Synuclein from Neuron to Astroglia Causes Inflammatory Responses in Synucleinopathies

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Lee, He-Jin, Suk, Ji-Eun, Patrick, Christina, Bae, Eun-Jin, Cho, Ji-Hoon, Rho, Sangchul, Hwang, Daehee, Masliah, Eliezer +1 more·2010·Journal of Biological Chemistry

Abstract

Abnormal neuronal aggregation of alpha-synuclein is implicated in the development of many neurological disorders, including Parkinson disease and dementia with Lewy bodies. Glial cells also show extensive alpha-synuclein pathology and may contribute to disease progression. However, the mechanism that produces the glial alpha-synuclein pathology and the interaction between neurons and glia in the disease-inflicted microenvironment remain unknown. Here, we show that alpha-synuclein proteins released from neuronal cells are taken up by astrocytes through endocytosis and form inclusion bodies. The glial accumulation of alpha-synuclein through the transmission of the neuronal protein was also demonstrated in a transgenic mouse model expressing human alpha-synuclein. Furthermore, astrocytes that were exposed to neuronal alpha-synuclein underwent changes in the gene expression profile reflecting an inflammatory response. Induction of pro-inflammatory cytokines and chemokines correlated with the extent of glial accumulation of alpha-synuclein. Together, these results suggest that astroglial alpha-synuclein pathology is produced by direct transmission of neuronal alpha-synuclein aggregates, causing inflammatory responses. This transmission step is thus an important mediator of pathogenic glial responses and could qualify as a new therapeutic target.

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  • In the context of neurodegeneration, astrocytes take up aggregate-prone MAPT/tau, amyloid beta (Aβ) and SNCA (synuclein alpha), and degrade these proteins through autophagy.

    “In the context of neurodegeneration, astrocytes take up aggregate-prone MAPT/tau, amyloid beta (Aβ) and SNCA (synuclein alpha), and degrade these proteins through autophagy [407–412].”

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Research works printed but not linked: 4

  1. JOURNAL OF BIOLOGICAL CHEMISTRY 9271
  2. M. (1998) Proc. Natl. Acad. Sci. U.S.A. 95, 6469 -6473
  3. Desplats, P., Lee, H. J., Bae, E. J., Patrick, C., Rockenstein, E., Crews, L., Spencer, B., Masliah, E., and Lee, S. J. (2009) Proc. Natl. Acad. Sci. U.S.A. 106, 13010 -13015
  4. Hwang, D., Rust, A. G., Ramsey, S., Smith, J. J., Leslie, D. M., Weston, A. D., de Atauri, P., Aitchison, J. D., Hood, L., Siegel, A. F., and Bolouri, H. (2005) Proc. Natl. Acad. Sci. U.S.A. 102, 17296 -17301

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Authors
Lee, H.-J., Suk, J.-E., Patrick, C., Bae, E.-J., Cho, J.-H., Rho, S., Hwang, D., Masliah, E., & Lee, S.-J.
Affiliations
  • Konkuk University (KR)
  • University of California San Diego (US)
  • Pohang University of Science and Technology (KR)
Corresponding author
Lee, Seung-Jae
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2010-03
Volume
285
Issue
12
Pages
9262-9272
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2014413787
Cited by
877
References
66
Citations by year
2026: 29 · 2025: 50 · 2024: 64 · 2023: 60 · 2022: 84 · 2021: 67 · 2020: 82 · 2019: 60 · 2018: 54 · 2017: 55 · 2016: 47 · 2015: 52 · 2014: 55 · 2013: 38 · 2012: 41
FWCI
22.49
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Open Access System for Information Sharing (Pohang University of Science and Technology) (submittedVersion)
Funders
  • National Research Foundation
  • National Research Foundation of Korea
  • Korea Science and Engineering Foundation
  • Ministry of Education, Science and Technology
  • National Institutes of Health (AG5131, AG‐18440)
  • National Institute on Aging (R37AG018440, R01AG018440, P50AG005131, AG-5131, AG 18440)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
alpha-synuclein, astrocytes, neurons, synucleinopathies, Parkinson's disease, dementia with Lewy bodies, neuroinflammation, protein aggregation, endocytosis, glial uptake, inflammatory cytokines, chemokines, transgenic mouse model, neuron-glia interactions
MeSH terms
Animals, Astrocytes, Cell Differentiation, Humans, Inflammation, Male, Mice, Transgenic, Models, Biological, Neurons, Culture Media, Conditioned, Rats, Sprague-Dawley, Neurodegenerative Diseases, Cell Line, Tumor, Mice, Rats, alpha-Synuclein

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