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Elucidation of molecular mechanism of retrograde transport abnormality and neuronal cell death based on divalent iron dynamics

Research Project

Project/Area Number 17K08311
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pharmacology in pharmacy
Research InstitutionGifu Pharmaceutical University

Principal Investigator

Inden Masatoshi  岐阜薬科大学, 薬学部, 准教授 (70512424)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsパーキンソン病 / 鉄 / 二価鉄 / 2価鉄 / DMT1 / VPS35 / 逆行性輸送 / 脳神経疾患 / 薬理学
Outline of Final Research Achievements

In this study, we used the organelle-specific Fe2 + fluorescent probe to visualize Fe2+ kinetics and elucidate the relationship between the perturbation of intracellular iron dynamics caused by the PD causative gene and the PD pathogenesis mechanism in order to develop a new drug discovery platform for PD. We have been able to clarify the disruption of Fe2+ dynamics caused by VPS35 and ATP13A2 knockdown. Moreover, it was clarified that the disturbance of Fe2+ dynamics caused by VPS35 knockdown was improved by R55, a retromer stabilizer.

Academic Significance and Societal Importance of the Research Achievements

これまで不明であった細胞内の鉄動態に関して、新しいプローブをしようすることで可視化することに成功し、パーキンソン病の病態の理解や創薬の関して新たな基盤を提供することができた。また、認知症を含む多くの神経変性疾患においてVPS35や逆行性輸送経路が注目されており、本研究成果は、パーキンソン病のみならず神経変性疾患全般に応用できる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (4 results)

  • [Journal Article] Characteristics and therapeutic potential of dental pulp stem cells on neurodegenerative diseases2020

    • Author(s)
      Tomoyuki Ueda, Masatoshi Inden, Taisei Ito, Hisaka Kurita, Isao Hozumi
    • Journal Title

      Frontiers in Neuroscience

      Volume: in press

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Golgi-targeting fluorescent probe for labile Fe(ii) to reveal an abnormal cellular iron distribution induced by dysfunction of VPS352019

    • Author(s)
      Hirayama Tasuku、Inden Masatoshi、Tsuboi Hitomi、Niwa Masato、Uchida Yasuhiro、Naka Yuki、Hozumi Isao、Nagasawa Hideko
    • Journal Title

      Chemical Science

      Volume: 10 Issue: 5 Pages: 1514-1521

    • DOI

      10.1039/c8sc04386h

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of gem-dihydroperoxides against mutant copper?zinc superoxide dismutase-mediated neurotoxicity2018

    • Author(s)
      Ueda Tomoyuki、Inden Masatoshi、Asaka Yuta、Masaki Yuji、Kurita Hisaka、Tanaka Wakako、Yamaguchi Eiji、Itoh Akichika、Hozumi Isao
    • Journal Title

      Molecular and Cellular Neuroscience

      Volume: 92 Pages: 177-184

    • DOI

      10.1016/j.mcn.2018.09.001

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] パーキンソン病原因遺伝子PARK9の発現低下に起因する 細胞内二価鉄イオンの局在変化2019

    • Author(s)
      木内政徳、位田雅俊 、中井岳 、栗田尚佳 、 平山祐、永澤秀子 、保住功
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Effect of mutant Cu/Zn superoxide dismutase 1 on intracellular iron dynamics2017

    • Author(s)
      Takuma Kawamura, Yuki Naka, Masatoshi Inden, Hisaka Kurita, Tasuku Hirayama, Hideko Nagasawa, Isao Hozumi
    • Organizer
      次世代を担う創薬・医療薬理シンポジウム2017
    • Related Report
      2017 Research-status Report
  • [Presentation] VPS35機能低下による鉄恒常性への影響2017

    • Author(s)
      名嘉優熙, 位田雅俊, 栗田尚佳, 平山 祐, 永澤秀子, 保住 功
    • Organizer
      メタルバイオサイエンス研究会2017
    • Related Report
      2017 Research-status Report
  • [Presentation] ALSに関連する変異型SOD1は細胞内鉄動態異常を引き起こす2017

    • Author(s)
      河村拓磨, 名嘉優煕, 位田雅俊, 栗田尚佳, 平山 祐, 永澤秀子, 保住 功
    • Organizer
      メタルバイオサイエンス研究会2017
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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