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Analysis of the progression mechanism of neurodegenerative diseases

Research Project

Project/Area Number 19K07860
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 51030:Pathophysiologic neuroscience-related
Research InstitutionTokyo Metropolitan Institute of Medical Science

Principal Investigator

MASUDA-SUZUKAKE Masami  公益財団法人東京都医学総合研究所, 脳・神経科学研究分野, 主任研究員 (20583751)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsタウ / αシヌクレイン / 伝播 / モデルマウス / 神経変性疾患 / タウタンパク質 / 脳内伝播 / アルツハイマー病 / パーキンソン病 / バイオマーカー
Outline of Research at the Start

アルツハイマー病やパーキンソン病は進行性の神経変性疾患であり、いまだ根治的療法が確立されていないという課題がある。
本研究では上記疾患の“進行過程”に着目し、その分子メカニズム解析と早期診断マーカーの探索を目的とする。
神経変性疾患脳内で認められる特徴的な変化である“異常タンパク質蓄積病理の脳内伝播”に着目し、我々が確立した動物モデルを用いてそのメカニズム解析を行う。アルツハイマー病で蓄積するタウ、パーキンソン病で蓄積するαシヌクレインについて平行して解析することにより、両疾患の進行メカニズムの類似性・相違性も明らかにしたい。

Outline of Final Research Achievements

Accumulation of assembled tau protein in the central nervous system is characteristic of Alzheimer’s disease and several other neurodegenerative diseases, called tauopathies. We developed a new mouse model of tau accumulation and propagation in brain. Single intracerebral injection of synthetic tau filaments induced by dextran sulphate into wild-type mice caused seeding of endogenous tau, followed by spreading to distinct areas in a time-dependent manner.
This study revealed that intracerebral injection of synthetic full-length wild-type tau seeds prepared in the presence of dextran sulphate caused tau propagation in non-transgenic mice. These findings establish that propagation of tau assemblies does not require tau to be either mutant and/or overexpressed.

Academic Significance and Societal Importance of the Research Achievements

本研究では、アルツハイマー病などのタウタンパク質の蓄積を伴う神経変性疾患の新規モデルマウスを確立した。このモデルは疾患早期の進行過程を再現しており、この系を用いた解析からアルツハイマー病の危険因子である「加齢」が病態の進行に促進的に働くことが明らかとなった。
この系はアルツハイマー病の進行過程の解明や進行過程を標的とした新規治療法開発への応用が期待できる。既に複数の研究室、製薬企業に導入されており、学術的需要の高いモデルである。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019 Other

All Journal Article (11 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Remarks (2 results)

  • [Journal Article] Development of a novel tau propagation mouse model endogenously expressing 3 and 4 repeat tau isoforms2022

    • Author(s)
      Hosokawa M, Masuda-Suzukake M, Shitara H, Shimozawa A, Suzuki G, Kondo H, Nonaka T, Campbell W, Arai T, Hasegawa M
    • Journal Title

      Brain

      Volume: 145 Issue: 1 Pages: 349-361

    • DOI

      10.1093/brain/awab289

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Phosphorylation of endogenous α-synuclein induced by extracellular seeds initiates at the pre-synaptic region and spreads to the cell body.2022

    • Author(s)
      Awa S, Suzuki G, Masuda-Suzukake M, Nonaka T, Saito M, Hasegawa M.
    • Journal Title

      Scientific reports

      Volume: 12 Issue: 1 Pages: 1163-1163

    • DOI

      10.1038/s41598-022-04780-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Assembly of α-synuclein and neurodegeneration in the central nervous system of heterozygous M83 mice following the peripheral administration of α-synuclein seeds.2021

    • Author(s)
      Macdonald JA, Chen JL, Masuda-Suzukake M, Schweighauser M, Jaunmuktane Z, Warner T, Holton JL, Grossman A, Berks R, Lavenir I, Goedert M.
    • Journal Title

      Acta Neuropathol Commun.

      Volume: 24 Issue: 1

    • DOI

      10.1186/s40478-021-01291-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Common Marmoset Model of α-Synuclein Propagation.2021

    • Author(s)
      Masuda-Suzukake M, Shimozawa A, Hashimoto M, Hasegawa M.
    • Journal Title

      Methods Mol Biol.

      Volume: 2322 Pages: 131-139

    • DOI

      10.1007/978-1-0716-1495-2_13

    • ISBN
      9781071614945, 9781071614952
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Progression of phosphorylated α-synuclein in Macaca fuscata2021

    • Author(s)
      Ito Kawakami, Atsuko Motoda, Masashi Hashimoto, Aki Shimozawa, Masami Masuda-Suzukake, Reiko Ohtani, Mina Takase, Mari Kumashiro, Kazuyuki Samejima, Masato Hasegawa
    • Journal Title

      Brain pathology

      Volume: - Issue: 5

    • DOI

      10.1111/bpa.12952

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 認知症の病態解明の進歩-疾患を規定するタウの線維構造.2021

    • Author(s)
      1.鈴掛雅美、亀谷富由樹、長谷川成人.
    • Journal Title

      脳神経内科

      Volume: 95 Pages: 436-441

    • Related Report
      2021 Annual Research Report
  • [Journal Article] α-Synuclein filaments from transgenic mouse and human synucleinopathy-containing brains are major seed-competent species.2020

    • Author(s)
      Morgan SA, Lavenir I, Fan J, Masuda-Suzukake M, Passarella D, DeTure MA, Dickson DW, Ghetti B, Goedert M.
    • Journal Title

      J Biol Chem

      Volume: - Issue: 19 Pages: 6652-6664

    • DOI

      10.1074/jbc.ra119.012179

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dextran sulphate-induced tau assemblies cause endogenous tau aggregation and propagation in wild-type mice2020

    • Author(s)
      Masami Masuda-Suzukake, Genjiro Suzuki, Masato Hosokawa, Takashi Nonaka, Michel Goedert, Masato Hasegawa
    • Journal Title

      Brain communications

      Volume: 2 Issue: 2

    • DOI

      10.1093/braincomms/fcaa091

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Prion-like Propagation of Pathological α-Synuclein <i>in Vivo</i>2019

    • Author(s)
      Masuda-Suzukake M, Hasegawa M.
    • Journal Title

      YAKUGAKU ZASSHI

      Volume: 139 Issue: 7 Pages: 1007-1013

    • DOI

      10.1248/yakushi.18-00165-4

    • NAID

      130007670813

    • ISSN
      0031-6903, 1347-5231
    • Year and Date
      2019-07-01
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Silver staining (Campbell-Switzer) of neuronal α-synuclein assemblies induced by multiple system atrophy and Parkinson's disease brain extracts in transgenic mice.2019

    • Author(s)
      Lavenir I, Passarella D, Masuda-Suzukake M, Curry A, Holton JL, Ghetti B, Goedert M.
    • Journal Title

      Acta Neuropathol Commun.

      Volume: 7 Issue: 1

    • DOI

      10.1186/s40478-019-0804-5

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Animal models of synucleinopathies: prion-like propagation of alpha-synuclein in wild-type animals2019

    • Author(s)
      Masuda-Suzukake M.
    • Journal Title

      Folia Pharmacologica Japonica

      Volume: 154 Issue: 6 Pages: 301-305

    • DOI

      10.1254/fpj.154.301

    • NAID

      130007754370

    • ISSN
      0015-5691, 1347-8397
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Animal models of synucleinopathies: prion-like propagation of alpha-synuclein in non-transgenic animals.2019

    • Author(s)
      Masami Masuda-Suzukake, Masato Hasegawa.
    • Organizer
      6th Congress of Asian college of Neuropsychopharmacology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 動物モデルにおけるαシヌクレイン伝播2019

    • Author(s)
      鈴掛雅美
    • Organizer
      第38回日本認知症学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 野生型マウスを用いた新規タウ伝播モデル2019

    • Author(s)
      鈴掛雅美, Michel Goedert, 長谷川成人
    • Organizer
      第38回日本認知症学会学術集会
    • Related Report
      2019 Research-status Report
  • [Remarks] 研究室webサイト(東京都医学総合研究所 認知症プロジェクト)

    • URL

      https://www.igakuken.or.jp/dementia/index.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 野生型マウスを用いたタウ蓄積の脳内伝播モデル

    • URL

      https://www.igakuken.or.jp/topics/2020/0708.html

    • Related Report
      2020 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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