• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Verification of the therapeutic effect of the neurotrophic factor pleotropin on ALS/FTLD pathology

Research Project

Project/Area Number 21K15622
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 51030:Pathophysiologic neuroscience-related
Research InstitutionShiga University of Medical Science (2022-2023)
Nagoya University (2021)

Principal Investigator

Fujioka Yusuke  滋賀医科大学, 神経難病研究センター, 助教 (70896381)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsプレオトロピン / FUS / グリア細胞 / ALS/FTLD / ALS / FTLD
Outline of Research at the Start

筋萎縮性硬化症/前頭側頭葉変性症(ALS/FTLD)は致死性神経難病であり新規治療法の確立は急務である。申請者はグリア細胞において家族性ALS/FTLD原因遺伝子FUSの機能喪失時に神経栄養因子プレオトロピン(Ptn)が特異的に分泌されることを独自網羅解析から見出し,このグリア細胞の神経保護効果を治療に応用するという着想に至った。
治療戦略の主眼は神経細胞周囲に十分量のPtnを供給することであるが、本研究では「リコンビナント-Ptn投与による治療」に加え「アデノ随伴ウイルスによるグリア細胞のPtn分泌賦活(FUSの発現抑制、Ptn強制発現)」についても検討を行い、新たな治療戦略の創出を目指す。

Outline of Final Research Achievements

To demonstrate the utility of a unique therapeutic strategy to preserve and harness the neuroprotective effects of glial cells in the early stages of ALS/FTLD disease, we tested recombinant pleiotropin supplementation (periodic intrathecal administration) as a means of providing sufficient amounts of pleiotropin to the peri-neuronal degenerating cells. Pathological studies confirmed that there were no significant adverse effects associated with intrathecal/intracerebroventricular administration of recombinant pleiotropin. Intrathecal administration of recombinant pleiotropin to SOD1 mutant mice was performed and changes in survival and motor function were confirmed. In addition, we pathologically confirmed the increased expression of pleiotropin and some neuroprotective effects in glia-specific FUS knockdown.

Academic Significance and Societal Importance of the Research Achievements

筋萎縮性硬化症/前頭側頭葉変性症(ALS/FTLD)は未だ致死性の神経難病であり新規治療法の確立は急務である。我々が今回着目したプレオトロピンはFUS機能喪失時に生理的に機能する神経保護因子であるが、検討により治療効果、副作用の面で十分期待ができるものであった。本課題を通じプレオトロピンのALS/FTLDへの治療応用への道筋を示した社会的意義は大きい。

Report

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

    (12 results)

All 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Path integration deficits are associated with phosphorylated tau accumulation in the entorhinal cortex2023

    • Author(s)
      Koike Riki、Soeda Yoshiyuki、Kasai Atsushi、Fujioka Yusuke、Ishigaki Shinsuke、Yamanaka Akihiro、Takaichi Yuta、Chambers James K、Uchida Kazuyuki、Watanabe Hirohisa、Takashima Akihiko
    • Journal Title

      Brain Communications

      Volume: 6 Issue: 1

    • DOI

      10.1093/braincomms/fcad359

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Path integration deficits predict phosphorylated tau accumulation in the entorhinal cortex: Assessment of Braak stage I,II using 3D Virtual reality goggles2023

    • Author(s)
      Takashima Akihiko、Koike Riki、Soeda Yoshiyuki、Fujioka Yusuke、Ishigaki Shinsuke、Watanabe Hirohisa
    • Journal Title

      Alzheimer's & Dementia

      Volume: 19 Issue: S22

    • DOI

      10.1002/alz.072386

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The SYNGAP1 3'UTR variant in ALS patients causes aberrant SYNGAP1 splicing and dendritic spine loss by recruiting HNRNPK2022

    • Author(s)
      Yokoi S, Ito T, Sahashi K, Nakatochi M, Tohnai G, Nakamura R, Fujioka Y, Ishigaki S, Udagawa T, Izumi Y, Morita M, Kano O, Oda M, Sone T, Okano H, Atsuta N, Katsuno M, Okada Y*, Sobue G*
    • Journal Title

      Journal of Neuroscience

      Volume: 42 Issue: 47 Pages: 8881-8896

    • DOI

      10.1523/jneurosci.0455-22.2022

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Motor neuron TDP-43 proteinopathy in progressive supranuclear palsy and corticobasal degeneration2022

    • Author(s)
      Riku Yuichi、Iwasaki Yasushi、Ishigaki Shinsuke、Akagi Akio、Hasegawa Masato、Nishioka Kenya、Li Yuanzhe、Riku Miho、Ikeuchi Takeshi、Fujioka Yusuke、Miyahara Hiroaki、Sone Jun、Hattori Nobutaka、Yoshida Mari、Katsuno Masahisa、Sobue Gen
    • Journal Title

      Brain

      Volume: - Issue: 8 Pages: 2769-2784

    • DOI

      10.1093/brain/awac091

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Fixated feeding is a potential biomarker for abnormalities in the mesolimbic DA system.2023

    • Author(s)
      Fujioka, Y., Kawai, K., Sobue, G., and Ishigaki, S.
    • Organizer
      Cell Symposia: Neurometabolsim in health and disease.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Stress-impaired reward pathway promotes distinct feeding behavior patterns.2023

    • Author(s)
      Fujioka, Y., Kawai, K., Sobue, G., and Ishigaki, S.
    • Organizer
      Society for Neuroscience annual meeting 2023.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tau regulates reward-system which is responsible for eating behavior pattern2022

    • Author(s)
      Fujioka Y, Ishigaki S, Kawai K, Takashima A, Katsuno M, Sobue G.
    • Organizer
      第63回日本神経学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] ストレスによる報酬系異常は「ダラダラ食べ」の原因となる2022

    • Author(s)
      藤岡 祐介 、河合 香里 、祖父江 元 、石垣 診祐
    • Organizer
      第16回 日本臨床ストレス応答学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Tau regulates reward-system which is responsible for eating behavior pattern2022

    • Author(s)
      Yusuke Fujioka, Kaori Kawai, Masahisa Katsuno, Akihiko Takashima, Gen Sobue, Shinsuke Ishigaki
    • Organizer
      第41回日本認知症学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] Stress-impaired reward pathway promotes distinct feeding behavior patterns2022

    • Author(s)
      藤岡 祐介 、河合 香里 、勝野雅央、祖父江 元 、石垣 診祐
    • Organizer
      第45回日本神経科学大会
    • Related Report
      2022 Research-status Report
  • [Presentation] ストレスは報酬系異常を介して摂食行動パターンを変化させる.2021

    • Author(s)
      藤岡祐介, 河合香里, 遠藤邦幸, 勝野雅央, 渡辺宏久, 石垣診祐, 祖父江元.
    • Organizer
      第15回日本臨床ストレス応答学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Tau regulates reward-system which is responsible for eating behavior pattern2021

    • Author(s)
      Yusuke Fujioka, Kaori Kawai, Kuniyuki Endo, Mianaka Ishibashi, Satoshi Yokoi, Nobuyuki Iwade, Masahisa Katsuno, Hirohisa Watanabe, Shinsuke Ishigaki, Gen Sobue.
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi