Cited by 56Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingAlzheimer's disease research and treatments

Fatty Acid-Binding Protein 3 is Critical for α-Synuclein Uptake and MPP+-Induced Mitochondrial Dysfunction in Cultured Dopaminergic Neurons

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Kawahata, Ichiro, Bousset, Luc, Melki, Ronald, Fukunaga, Kohji·2019·International Journal of Molecular Sciences

Abstract

α-Synuclein is an abundant neuronal protein that accumulates in insoluble inclusions in Parkinson′s disease and other synucleinopathies. Fatty acids partially regulate α-Synuclein accumulation, and mesencephalic dopaminergic neurons highly express fatty acid-binding protein 3 (FABP3). We previously demonstrated that FABP3 knockout mice show decreased α-Synuclein oligomerization and neuronal degeneration of tyrosine hydroxylase (TH)-positive neurons in vivo. In this study, we newly investigated the importance of FABP3 in α-Synuclein uptake, 1-methyl-4-phenylpyridinium (MPP+)-induced axodendritic retraction, and mitochondrial dysfunction. To disclose the issues, we employed cultured mesencephalic neurons derived from wild type or FABP3−/− C57BL6 mice and performed immunocytochemical analysis. We demonstrated that TH+ neurons from FABP3+/+ mice take up α-Synuclein monomers while FABP3−/− TH+ neurons do not. The formation of filamentous α-Synuclein inclusions following treatment with MPP+ was observed only in FABP3+/+, and not in FABP3−/− neurons. Notably, detailed morphological analysis revealed that FABP−/− neurons did not exhibit MPP+-induced axodendritic retraction. Moreover, FABP3 was also critical for MPP+-induced reduction of mitochondrial activity and the production of reactive oxygen species. These data indicate that FABP3 is critical for α-Synuclein uptake in dopaminergic neurons, thereby preventing synucleinopathies, including Parkinson′s disease.

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Authors
Kawahata, I., Bousset, L., Melki, R., & Fukunaga, K.
Affiliations
  • Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
  • Centre National de la Recherche Scientifique (FR)
  • Tohoku University (JP)
Corresponding author
Fukunaga, Kohji
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2019-10-28
Volume
20
Issue
21
Pages
5358
ISSN
1422-0067 (ISSN-L)
OpenAlex
W2982145395
Cited by
56
References
47
Citations by year
2026: 4 · 2025: 6 · 2024: 10 · 2023: 8 · 2022: 7 · 2021: 13 · 2020: 7 · 2019: 1
FWCI
4.74
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Japan Agency for Medical Research and Development (JP19dm0107071, JP18dm0107071)
  • Agence Nationale de la Recherche (ANR-17-JPCD-0002)
  • Japan Society for the Promotion of Science (19K07097)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
fatty acid binding protein 3, MPP+, mitochondrial dysfunction, dopaminergic neurons, Parkinson's disease, synucleinopathies, reactive oxygen species, alpha-synuclein oligomerization, tyrosine hydroxylase neurons
MeSH terms
Fatty Acid Binding Protein 3, Animals, Biological Transport, Cells, Cultured, Dopamine, Mesencephalon, Mice, Inbred C57BL, Mitochondria, Parkinson Disease, Tyrosine 3-Monooxygenase, 1-Methyl-4-phenylpyridinium, Reactive Oxygen Species, Mice, Knockout, Mice, alpha-Synuclein, Dopaminergic Neurons

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