Cited by 50Parkinson's Disease Mechanisms and TreatmentsAlzheimer's disease research and treatmentsNuclear Receptors and Signaling

Development of FABP3 ligands that inhibit arachidonic acid-induced α-synuclein oligomerization

Cheng, An, Shinoda, Yasuharu, Yamamoto, Tetsunori, Miyachi, Hiroyuki, Fukunaga, Kohji·2019·Brain Research

Abstract

In Parkinson's disease (PD), α-synuclein (αSyn) accumulation and inclusion triggers dopamine neuronal death and synapse dysfunction in vivo. We previously reported that fatty acid-binding protein 3 (FABP3) is highly expressed in the brain and accelerates αSyn oligomerization when cells are exposed to 1-Methyl-1,2,3,6-tetrahydropiridine (MPTP). Here, we demonstrate that αSyn oligomerization was markedly enhanced by co-overexpressing FABP3 in neuro-2A cells when cells were treated with arachidonic acid (AA). We developed FABP3 ligands, which bind to the fatty acid binding domain of FABP3, using an 8-Anilinonaphthalene-1-sulfonic acid (ANS) assay with a recombinant FABP3 protein. The prototype for the FABP4 ligand, BMS309403, has no affinity for FABP3. We developed more FABP3-specific ligands derived from the chemical structure of BMS309403. Like AA, ligands 1, 7, and 8 had a relatively high affinity for FAPB3 in the ANS assay. Then, we evaluated the inhibition of αSyn oligomerization in neuro-2A cells co-overexpressing FABP3 and αSyn. Importantly, AA treatments markedly enhanced αSyn oligomerization in the co-expressing cells. Ligands 1, 7, and 8 significantly reduced AA-induced αSyn oligomerization in neuro-2A cells. Taken together, our results indicate that FABP3 ligands that target FABP3 may be used as potential therapeutics that inhibit αSyn aggregation in vivo.

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Crossref · 10.1016/j.brainres.2018.11.036

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Authors
Cheng, A., Shinoda, Y., Yamamoto, T., Miyachi, H., & Fukunaga, K.
Affiliations
  • Tohoku University (JP)
  • The University of Tokyo (JP)
Corresponding author
Fukunaga, Kohji
Venue
Brain Research
Publisher
Elsevier BV
Published
2019-03
Volume
1707
Pages
190-197
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2902172038
Cited by
50
References
42
Citations by year
2026: 3 · 2025: 6 · 2024: 4 · 2023: 9 · 2022: 2 · 2021: 14 · 2020: 7 · 2019: 5
FWCI
4.41
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (16H05219)
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
FABP3, alpha-synuclein oligomerization, arachidonic acid, Parkinson's disease, BMS309403, N2a cells, alpha-synuclein aggregation, neuroprotection
MeSH terms
Fatty Acid Binding Protein 3, Synucleinopathies, Animals, Brain, Dopamine, Ligands, Parkinson Disease, Substantia Nigra, Arachidonic Acid, Cell Line, Tumor, Mice, alpha-Synuclein, Dopaminergic Neurons

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