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Study to develop therapeutic strategy of neurodegenerative disorders by targeting on CRMP

Research Project

Project/Area Number 18K06511
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46020:Anatomy and histopathology of nervous system-related
Research InstitutionWaseda University

Principal Investigator

Ohshima Toshio  早稲田大学, 理工学術院, 教授 (20311334)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords神経変性疾患 / 神経再生 / マウスモデル / パーキンソン病 / リン酸化 / モデルマウス / 脊髄損傷 / 神経損傷
Outline of Final Research Achievements

We conducted experimental research to develop therapeutic strategy for the treatment of patients with neurodegenerative disorders by targeting on CRMPs which are involved in neural development and regeneration. Using mice, we examined the effect of loss of CRMP4 and suppression of CRMP2 phosphorylation on neural degeneration and regeneration. We found that loss of CRMP4 suppressed the decline of dopaminergic neurons in substantia nigra after 6-OHDA injection into striatum. By inhibiting CRMP2 phosphorylation, regeneration of optic nerve was promoted after optic nerve injury. Suppressed degeneration of axonal terminals of dopaminergic neurons in substantia nigra was also observed after MPTP treatment, suggesting a potential of therapeutic strategy to treat neurodegenerative disorders by manipulation of CRMPs.

Academic Significance and Societal Importance of the Research Achievements

本研究は、神経発生や神経再生に関与しているCRMPをターゲットとした神経変性疾患の治療を目指して行なわれた。結果として、6-OHDAを線条体に注入するパーキンソン病(PD)モデルにおいて、CRMP4遺伝子欠損がドーパミン神経(DN)脱落を抑制することが示された。また、CRMP2のリン酸化抑制により、視神経損傷後の視神経変性が抑制され、神経再生が促進することが明らかとなった。さらに、CRMP2のリン酸化抑制がMPTP薬剤誘導型PDモデルでもDNの脱落を抑制し、神経軸索の変性を抑止した。以上実験結果から、神経変性疾患の治療法としてCRMPをターゲトとした創薬が有用である可能性が示された。

Report

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

    (5 results)

All 2020 2019

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 1 results)

  • [Journal Article] Loss of Collapsin Response Mediator Protein 4 Attenuates 6-Hydroxydopamine-Induced Impairments in a Mouse Model of Parkinson’s Disease2020

    • Author(s)
      Li Wenting、Goshima Yoshio、Ohshima Toshio
    • Journal Title

      Neurochemical Research

      Volume: 45 Issue: 10 Pages: 2286-2301

    • DOI

      10.1007/s11064-020-03086-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lanthionine ketimine ester improves outcome in an MPTP-induced mouse model of Parkinson's disease via suppressions of CRMP2 phosphorylation and microglial activation2020

    • Author(s)
      Togashi Kentaro、Hasegawa Masaya、Nagai Jun、Kotaka Ken、Yazawa Arina、Takahashi Miyuki、Masukawa Daiki、Goshima Yoshio、Hensley Kenneth、Ohshima Toshio
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 413 Pages: 116802-116802

    • DOI

      10.1016/j.jns.2020.116802

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Genetic inhibition of CRMP2 phosphorylation delays Wallerian degeneration after optic nerve injury2019

    • Author(s)
      Kinoshita Y, Kondo S, Takahashi K, Nagai J, Wakatsuki S, Araki T, Goshima Y, Ohshima T
    • Journal Title

      BBRC

      Volume: 514 Issue: 4 Pages: 1037-1039

    • DOI

      10.1016/j.bbrc.2019.05.060

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Genetic inhibition of CRMP2 phosphorylation at serine 522 promotes axonal regeneration after optic nerve injury2019

    • Author(s)
      Kondo S, Takahashi K, Kinoshita Y, Nagai J, Wakatsuki S, Araki T, Goshima Y, Ohshima T
    • Journal Title

      Sci Rep

      Volume: 9 Issue: 1 Pages: 7188-7188

    • DOI

      10.1038/s41598-019-43658-w

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genetic suppression of CRMP2 phosphorylation improves outcome in MPTP-induced Parkinson’s model mice2019

    • Author(s)
      Togashi K, Hasegawa M, Nagai J, Tonouchi A, Masukawa D, Hensley K, Goshima Y, Ohshima T.
    • Journal Title

      Genes to Cells

      Volume: 24 Issue: 1 Pages: 31-40

    • DOI

      10.1111/gtc.12651

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research

URL: 

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

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