Pathomechanisms of Parkinson disease due to dysfunction of iPLA2G6
Project/Area Number |
16K09675
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Neurology
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Research Institution | Juntendo University |
Principal Investigator |
Hatano Taku 順天堂大学, 医学(系)研究科(研究院), 准教授 (60338390)
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | パーキンソン病 / PARK14 / PLA2G6 / α-シヌクレイン / リノール酸 / リン脂質代謝 / レヴィ小体 / リン脂質 / C19orf72 / 脂質代謝異常 / 放出機能 / シナプス終末 / Lewy小体 |
Outline of Final Research Achievements |
PLA2G6 is known as the causative gene of familial Parkinson's disease (PARK14). Pathological studies of PARK14 revealed dopaminergic neuronal degeneration with Lewy bodies (LB). Thus, impairment of PLA2G6 may be associated with the aggregation of alpha-synuclein (AS). To reveal the association between PLA2G6 dysfunction and AS aggregation, PLA2G6 knockout Drosophila was generated and exhibited motor and sleep dysfunction due to dopaminergic neuronal degeneration. Additionally, the fly model had synaptic terminal dysfunction. These phenotypes were rescued by overexpression of wild type human PLA2G6 but not A80T pathogenic mutation. Furthermore, I found an alteration in lipid composition and AS aggregation in the brain of the fly model. Administration of linoleic acid could rescue the phenotypes and AS aggregation. Therefore, lipid composition in the brain may be critical for the mechanisms of LB formation and lipid administration therapy might have an effect on Parkinson's disease.
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Academic Significance and Societal Importance of the Research Achievements |
α-シヌクレイン(AS)は脂質膜、中でもリン脂質に直接結合する事が知られている。膜への結合能の変化はAS凝集に関連し神経変性の原因となる。本研究でリン脂質代謝障害とAS凝集との関連を明らかにしており、パーキンソン病(PD)の病態解明につながる成果を挙げた。さらに、脂質補充をすることで脂質膜を変化させAS凝集を抑制し、神経変性を改善させる事を明らかにした。これにより適切な脂質を摂取する食事療法による治療への応用、つまりは医食同源を実現できる可能性を示した研究である。神経難病であるPDの病態解明として、脂質酵素に焦点を当て治療への応用を検討しており、学術的および社会的意義が高い研究である。
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Report
(4 results)
Research Products
(60 results)
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[Journal Article] Metabolomics‐based identification of metabolic alterations in PARK22019
Author(s)
Okuzumi Ayami、Hatano Taku、Ueno Shin‐Ichi、Ogawa Takashi、Saiki Shinji、Mori Akio、Koinuma Takahiro、Oji Yutaka、Ishikawa Kei‐Ichi、Fujimaki Motoki、Sato Shigeto、Ramamoorthy Sivapriya、Mohney Robert P.、Hattori Nobutaka
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Journal Title
Annals of Clinical and Translational Neurology
Volume: 6
Issue: 3
Pages: 525-536
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Zonisamide Administration Improves Fatty Acid β-Oxidation in Parkinson's Disease.2018
Author(s)
Ueno SI, Saiki S, Fujimaki M, Takeshige-Amano H, Hatano T, Oyama G, Ishikawa KI, Yamguchi A, Nojiri S, Akamatsu W, Hattori N.
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Journal Title
Cells
Volume: 8
Issue: 1
Pages: 14-14
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] GCH1 mutations in dopa-responsive dystonia and Parkinson's disease.2018
Author(s)
Yoshino H, Nishioka K, Li Y, Oji Y, Oyama G, Hatano T, Machida Y, Shimo Y, Hayashida A, Ikeda A, Mogushi K, Shibagaki Y, Hosaka A, Iwanaga H, Fujitake J, Ohi T, Miyazaki D, Sekijima Y, Oki M, Kusaka H, Fujimoto KI Ugawa Y, Funayama M, Hattori N.
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Journal Title
Journal of Neurology
Volume: 265(8)
Issue: 8
Pages: 1860-1870
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Neurite orientation dispersion and density imaging of the nigrostriatal pathway in Parkinson's disease: Retrograde degeneration observed by tract-profile analysis.2018
Author(s)
Andica C, Kamagata K, Hatano T, Okuzumi A, Saito A, Nakazawa M, Ueda R, Motoi Y, Kamiya K, Suzuki M, Hori M, Kumamaru KK, Hattori N, Aoki S.
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Journal Title
Parkinsonism & Related Disorders
Volume: 18
Pages: 30112-30113
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Serum caffeine and metabolites are reliable biomarkers of early Parkinson disease.2018
Author(s)
Fujimaki M, Saiki S, Li Y, Kaga N, Taka H, Hatano T, Ishikawa KI, Oji Y, Mori A, Okuzumi A, Koinuma T, Ueno SI, Imamichi Y, Ueno T, Miura Y, Funayama M, Hattori N.
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Journal Title
Neurology.
Volume: 90
Issue: 5
Pages: 1-8
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Gray Matter Abnormalities in Idiopathic Parkinson's Disease: Evaluation by Diffusional Kurtosis Imaging and Neurite Orientation Dispersion and Density Imaging.2017
Author(s)
Kamagata K, Zalesky A, Hatano T, Ueda R, Di Biase MA, Okuzumi A, Shimoji K, Hori M, Caeyenberghs K, Pantelis C, Hattori N, Aoki S.
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Journal Title
Human Brain Mapping
Volume: in press
Issue: 7
Pages: 3704-3722
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] The Risk Factors for the Wearing-off Phenomenon in Parkinson's Disease in Japan: A Cross-sectional, Multicenter Study2017
Author(s)
Ouma S, Fukae J, Fujioka S, Yamamoto S, Hatano T, Yoritaka A, Okuma Y, Kashihara K, Hattori N, Tsuboi Y.
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Journal Title
Internal Medicine
Volume: 56
Issue: 15
Pages: 1961-1966
DOI
NAID
ISSN
0918-2918, 1349-7235
Related Report
Peer Reviewed / Open Access
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[Journal Article] Decreased long-chain acylcarnitines from insufficient β-oxidation as potential early diagnostic markers for Parkinson's disease.2017
Author(s)
Saiki S, Hatano T, Fujimaki M, Ishikawa K, Mori A, Oji Y, Okuzumi A, Fukuhara T, Koinuma T, Nagumo M, Furuya N, Nojiri S, Amo T, Yamashiro K, Hattori N.
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Journal Title
Scientific Reports
Volume: 7
Issue: 1
Pages: 7328-7328
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Connectome analysis with diffusion MRI in idiopathic Parkinson's disease: Evaluation using multi-shell, multi-tissue, constrained spherical deconvolution.2017
Author(s)
Kamagata K, Zalesky A, Hatano T, Di Biase MA, El Samad O, Saiki S, Shimoji K, Kumamaru KK, Kamiya K, Hori M, Hattori N, Aoki S, Pantelis C.
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Journal Title
Neuroimage Clinical
Volume: 17
Pages: 518-529
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Neuropathology of PARK14 is identical to idiopathic Parkinson's disease2017
Author(s)
Miki Y, Yoshizawa T, Morohashi S, Seino Y, Kijima H, Shoji M, Mori A, Yamashita C, Hatano T, Hattori N, Wakabayashi K
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Journal Title
Mov Disord
Volume: -
Issue: 5
Pages: 35-35
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Anhedonia and its correlation with clinical aspects in Parkinson's disease.2017
Author(s)
Nagayama H, Maeda T, Uchiyama T, Hashimoto M, Nomoto N, Kano O, Takahashi T, Terashi H, Hamada S, Hasegawa T, Hatano T, Takahashi T, Baba Y, Sengoku R, Watanabe H, Inoue M, Kadowaki T, Kaneko K, Hideki Shimura H, Kubo S, The Young Japanese Expert Group for Parkinson's Disease and Movement Disorders: YJ-EXPANDS.
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Journal Title
Journal of Neurological Science
Volume: 372
Pages: 403-407
DOI
Related Report
Peer Reviewed
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[Journal Article] A Japanese multicenter survey characterizing pain in Parkinson's disease2016
Author(s)
Kubo SI, Hamada S, Maeda T, Uchiyama T, Hashimoto M, Nomoto N, Kano O, Takahashi T, Terashi H, Takahashi T, Hatano T, Hasegawa T, Baba Y, Sengoku Rl, Watanabe H, Kadowaki T, Inoue M, Kaneko S, Shimura H, Nagayama H
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Journal Title
Journal of The Neurological Science
Volume: 365
Pages: 162-166
DOI
Related Report
Peer Reviewed
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