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Pharmacological study of stress sensor DJ-1 on neurodegenerative disorder synucleinopathy

Research Project

Project/Area Number 21K06586
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47040:Pharmacology-related
Research InstitutionRitsumeikan University

Principal Investigator

Kitamura Yoshihisa  立命館大学, 薬学部, 教授 (60195295)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsDJ-1 / 酸化ストレスセンサー / DJ-1結合化合物 / α-シヌクレイン / シヌクレイノパチー / 神経変性疾患 / pre-formed fibril (PFFs) / C57BLマウス / 線条体 / PARK7 (DJ-1) / PARK7 / BV-2ミクログリア細胞 / ヒト神経芽細胞腫 SH-SY5Y細胞 / マウスBV-2ミクログリア細胞 / C57BL マウス / ストレスセンサーDJ-1
Outline of Research at the Start

パーキンソン病やレビー小体型認知症などの神経変性疾患シヌクレイノパチーにおいて、酸化ストレスやαシヌクレインの変性タンパク質の蓄積など、様々な要因が絡み合うことで病態が進行する。一方、ストレスセンサーDJ-1の脳における機能は未だ明確ではないため、研究代表者は、グリア細胞、特にミクログリアおよび神経細胞におけるDJ-1の機能解析を行う。なかでもミクログリアの有する変性タンパク質の貪食能および神経保護作用に対するDJ-1の関与を明らかにする。

Outline of Final Research Achievements

Stress sensor DJ-1-knocked down human SH-SY5Y cells markedly generated oxidative stress and then neural celldeath. On the other hand, α-synuclein (α-syn) protein is known to accumulate the aggregated formin the brains of patients with synucleinopathies such as Parkinson's disease (PD). In this study, I establish the α-syn-aggregation system in in vitro SH-SY5Y cells and in vivo mouse model. In brief, a microinjection of preformed fibrils (PFFs) into the striatum induced intracellular α-syn-aggregation in the mouse cerebral cortex, striatum and substantia nigra. Subsequently, DJ-1-binding compound-23 was injected for 12-weeks. This results indicated that the formation of Lewy body-like inclusion in the mouse brain were slightly inhibited, unfortunately but not significant.

Academic Significance and Societal Importance of the Research Achievements

7型家族性パーキンソン病の原因遺伝子としてDJ-1は同定されたため、当初はパーキンソン病の治療薬としての創製を試みていた。しかし、強い抗酸化ストレス能をもつことから、他の神経変性疾患シヌクレイノパチーに対する治療標的の候補になると考えられた。そこで、プリオンと同様にα-シヌクレインが細胞内で凝集する細胞評価系をin vitro培養系およびin vivo マウスモデルを確立した。残念ながら、見出したDJ-1の結合化合物-23はin vitro 計では有意に有効であったが、in vivo系では傾向はみられた。本研究課題で得られた研究成果はシヌクレイノパチーに効く新たなシード薬となりうる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (14 results)

All 2023 2022 2021 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (6 results) (of which Int'l Joint Research: 4 results) Remarks (3 results)

  • [Journal Article] The neuroprotective effects of FG-4592, a hypoxia-inducible factor-prolyl hydroxylase inhibitor, against oxidative stress induced by alpha-synuclein in N2a cells.2023

    • Author(s)
      Fujimaki Ayaka、 Ohuchi Kazuki、 Takizawa Shinnosuke、 Murakmi Takanori、 Kurita Hisaka、 Hozumi Isao、 Wen Xiaopeng、 Kitamura Yoshihisa、 Wu Zhiliang、 Maekawa Yoichi、 Inden Masatoshi
    • Journal Title

      Scientific Reports

      Volume: 13 (1) Issue: 1 Pages: 15629-15629

    • DOI

      10.1038/s41598-023-42903-7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nicotinic Acetylcholine Receptors and Microglia as Therapeutic and Imaging Targets in Alzheimer’s Disease2022

    • Author(s)
      Takata Kazuyuki、Kimura Hiroyuki、Yanagisawa Daijiro、Harada Koki、Nishimura Kaneyasu、Kitamura Yoshihisa、Shimohama Shun、Tooyama Ikuo
    • Journal Title

      Molecules

      Volume: 27 Issue: 9 Pages: 2780-2780

    • DOI

      10.3390/molecules27092780

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lipoxin A4 Receptor Stimulation Attenuates Neuroinflammation in a Mouse Model of Intracerebral Hemorrhage2022

    • Author(s)
      Futokoro Risa, Hijioka Masanori, Arata Moe, Kitamura Yoshihisa
    • Journal Title

      Brain Sciences

      Volume: 12 Issue: 2 Pages: 162-162

    • DOI

      10.3390/brainsci12020162

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] MEK/ERK Signaling Regulates Reconstitution of the Dopaminergic Nerve Circuit in the Planarian Dugesia japonica2021

    • Author(s)
      Hijioka Masanori, Ikemoto Yusuke, Fukao Kosuke, Inoue Takeshi, Kobayakawa Tatsuki, Nishimura Kaneyasu, Takata Kazuyuki, Agata Kiyokazu, Kitamura Yoshihisa
    • Journal Title

      Neurochemical Research

      Volume: - Issue: 9 Pages: 2558-2567

    • DOI

      10.1007/s11064-020-03226-5

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Kaempferol Has Potent Protective and Antifibrillogenic Effects for α-Synuclein Neurotoxicity In Vitro.2021

    • Author(s)
      Inden M, Takagi A, Kitai H, Ito T, Kurita H, Honda R, Kamatari YO, Nozaki S, Wen X, Hijioka M, Kitamura Y, Hozumi I
    • Journal Title

      Int J Mol Sci. 22, 11484

      Volume: 22 Issue: 21 Pages: 11484-11484

    • DOI

      10.3390/ijms222111484

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] MEK/ERK signaling promotes the regeneration of dopaminergic never circuit in the planarian, an invertebrate flatworm2023

    • Author(s)
      Wen Xiaopeng, Hijioka Masanori, Inoue Takeshi, Agata Kiyokazu, Kitamura Yoshihisa
    • Organizer
      19th World Congress of Basic and Clinical Pharmacology, Glasgow
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Galantamine reduced α-synuclein aggregation by inducing autophagy activation of the α7-nicotinic acetylcholine receptors2023

    • Author(s)
      Iwashita Natsumi, Wen Xiaopeng, Nozaki Sora, Hijioka Masanori, Kitamura Yoshihisa
    • Organizer
      19th World Congress of Basic and Clinical Pharmacology, Glasgow
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Reconstitutionof dopaminergic nerve circuit in planarian, an invertebrate flatworm2023

    • Author(s)
      Matsubayashi Koto, Xiaopeng Wen, Hijioka Masanori, Inoue Takeshi, Agata Kiyokazu, Kitamura Yoshihisa
    • Organizer
      The 21st Takeda Science Foundation Symposium on Bioscence, Osaka
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Reconstitutionof dopaminergic nerve circuit in planarian, an invertebrate flatworm2023

    • Author(s)
      Matsubayashi Koto, Xiaopeng Wen, Hijioka Masanori, Inoue Takeshi, Agata Kiyokazu, Kitamura Yoshihisa
    • Organizer
      The 21st Takeda Science Foundation Symposium on Bioscence, Osaka, 2023.1
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] ガランタミンはオートファジーを活性化することによりα-シヌクレインタンパク質の凝集を抑制する2021

    • Author(s)
      野﨑空, 肱岡雅宣, 岩下夏未, 難波純也, 文小鵬, 北村佳久
    • Organizer
      第44回 日本神経科学大会, 神戸(オンライン開催)
    • Related Report
      2021 Research-status Report
  • [Presentation] α-シヌクレイン凝集体のクリアランスにおけるガランタミンの作用解析2021

    • Author(s)
      岩下夏未, 野﨑空, 肱岡雅宣, 文小鵬, 北村佳久
    • Organizer
      第71回日本薬学会関西支部総会・大会, 大阪(オンライン開催)
    • Related Report
      2021 Research-status Report
  • [Remarks] 00

    • Related Report
      2023 Annual Research Report
  • [Remarks] 教員紹介

    • URL

      http://www.ritsumei.ac.jp/ph/educators/detail.html/?id=27

    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Remarks] 研究概要・研究業績

    • URL

      http://research-db.ritsumei.ac.jp/Profiles/118/0011784/profile.html

    • Related Report
      2022 Research-status Report 2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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