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Development of biomarker and new therapy using the protein structure

Research Project

Project/Area Number 18H02741
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52020:Neurology-related
Research InstitutionOsaka University

Principal Investigator

Mochizuki Hideki  大阪大学, 医学系研究科, 教授 (90230044)

Co-Investigator(Kenkyū-buntansha) 宗 正智  大阪大学, 蛋白質研究所, 助教 (40746335)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2018: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Keywordsパーキンソン病 / alpha synuclein / 伝播 / 構造多型 / アミロイド線維 / αシヌクレイン / 凝集 / バイオマーカー / シヌクレイン / フィブリル / パーキンソン / アミロイド
Outline of Final Research Achievements

The accumulation of alpha-synuclein causes several diseases. A relationship between fibril polymorphs and distinct pathologies has been suggested; however, the underlying mechanisms of polymorphisms are not fully understood. Here, we demonstrate that conformations of monomeric alpha-synuclein are responsible for fibril polymorphisms. Alpha-synuclein can exist in a compact monomer that produces rod fibrils, similar to the fibrils from Parkinson’s disease; while extended monomers generate twisted fibrils, resembling the fibrils from multiple system atrophy. Our results provide mechanistic insights into the causes of the variety of synucleinopathies and the required molecular events that trigger each disease.

Academic Significance and Societal Importance of the Research Achievements

パーキンソン病や多系統萎縮症は、未だに根本治療が全くない疾患である。その病態も未だ謎のことが多く、病態解明が急務であり、その先に治療薬の開発も想定される。今回我々が見出したことは、それらの疾患の主病態であるαシヌクレインフィブリルがどのように構造の多型をつくるかという、根本的な機序である。その機序には疾患関連で知られる、様々な因子がかかわり、シヌクレインの凝集多型を規定していた。この発見は、単なる病態理解にとどまらず、それらの因子を取り除く治療、予防する治療に発展させることができ、今後根本的な治療薬開発につながる可能性を秘めている。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (9 results)

All 2021 2020 2019 2018

All Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (1 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Polyphosphates induce amyloid fibril formation of α-synuclein in concentration-dependent distinct manners2021

    • Author(s)
      Yamaguchi Keiichi、So Masatomo、Aguirre Cesar、Ikenaka Kensuke、Mochizuki Hideki、Kawata Yasushi、Goto Yuji
    • Journal Title

      Journal of Biological Chemistry

      Volume: 296 Pages: 100510-100510

    • DOI

      10.1016/j.jbc.2021.100510

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Alpha‐synuclein dynamics in induced pluripotent stem cell‐derived dopaminergic neurons from a Parkinson’s disease patient ( PARK4 ) with SNCA triplication2021

    • Author(s)
      Fukusumi Hayato、Togo Kazuyuki、Sumida Miho、Nakamori Masayuki、Obika Satoshi、Baba Kousuke、Shofuda Tomoko、Ito Daisuke、Okano Hideyuki、Mochizuki Hideki、Kanemura Yonehiro
    • Journal Title

      FEBS Open Bio

      Volume: 11 Issue: 2 Pages: 354-366

    • DOI

      10.1002/2211-5463.13060

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The secondary structural difference between Lewy body and glial cytoplasmic inclusion in autopsy brain with synchrotron FTIR micro-spectroscopy2020

    • Author(s)
      Araki Katsuya、Yagi Naoto、Ikemoto Yuka、Hayakawa Hideki、Fujimura Harutoshi、Moriwaki Taro、Nagai Yoshitaka、Murayama Shigeo、Mochizuki Hideki
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 1-100

    • DOI

      10.1038/s41598-020-76565-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detection of Phosphorylated Alpha-Synuclein in the Muscularis Propria of the Gastrointestinal Tract Is a Sensitive Predictor for Parkinson’s Disease2020

    • Author(s)
      Beck Goichi、Hori Yumiko、Hayashi Yoshito、Morii Eiichi、Takehara Tetsuo、Mochizuki Hideki
    • Journal Title

      Parkinson's Disease

      Volume: 2020 Pages: 1-8

    • DOI

      10.1155/2020/4687530

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structurally Distinct α‐Synuclein Fibrils Induce Robust Parkinsonian Pathology2019

    • Author(s)
      Hayakawa Hideki、Nakatani Rie、Ikenaka Kensuke、Aguirre Cesar、Choong Chi‐Jing、Tsuda Hiroshi、Nagano Seiichi、Koike Masato、Ikeuchi Takeshi、Hasegawa Masato、Papa Stella M.、Nagai Yoshitaka、Mochizuki Hideki、Baba Kousuke
    • Journal Title

      Movement Disorders

      Volume: 35 Issue: 2 Pages: 256-267

    • DOI

      10.1002/mds.27887

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Parkinson’s disease is a type of amyloidosis featuring accumulation of amyloid fibrils of α-synuclein2019

    • Author(s)
      Araki Katsuya、Yagi Naoto、Aoyama Koki、Choong Chi-Jing、Hayakawa Hideki、Fujimura Harutoshi、Nagai Yoshitaka、Goto Yuji、Mochizuki Hideki
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 116 Issue: 36 Pages: 17963-17969

    • DOI

      10.1073/pnas.1906124116

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultrasonication-based rapid amplification of α-synuclein aggregates in cerebrospinal fluid.2019

    • Author(s)
      2. Kakuda K, Ikenaka K, Araki K, So M, Aguirre C, Kajiyama Y, Konaka K, Noi K, Baba K, Tsuda H, Nagano S, Ohmichi T, Nagai Y, Tokuda T, El-Agnaf O, Ogi H, Goto Y, Mochizuki H.
    • Journal Title

      Sci Rep

      Volume: 9 Issue: 1 Pages: 6001-6001

    • DOI

      10.1038/s41598-019-42399-0

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Is Parkinson’s disease systemic amyloidosis?2019

    • Author(s)
      Hideki Mochizuki
    • Organizer
      TOWARDS A CURE FOR AMYLOID DISEASES: A SUCCESSFUL EXAMPLE OF PRECISION AND TRANSLATIONAL MEDICINE
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Patent(Industrial Property Rights)] パーキンソン病モデル非ヒト動物2018

    • Inventor(s)
      望月 秀樹、馬場 孝輔、早川 英規
    • Industrial Property Rights Holder
      望月 秀樹、馬場 孝輔、早川 英規
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Acquisition Date
      2019
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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