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Develpment of a new method to treat neuromuscular diseases

Research Project

Project/Area Number 16K14575
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Neurochemistry/Neuropharmacology
Research InstitutionThe University of Tokyo

Principal Investigator

Tezuka Tohru  東京大学, 医科学研究所, 助教 (50312319)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords神経筋接合部 / 神経筋疾患 / 神経筋シナプス / 神経科学 / 遺伝子 / シグナル伝達
Outline of Final Research Achievements

The neuromuscular junction (NMJ) is a synapse between a motor neuron and skeletal muscle and is required for muscle contraction. Defects in NMJ formation are found in various neuromuscular diseases including myasthenia, muscle dystrophy, and motor neuron degenerative diseases, suggesting that enhancement of NMJ formation mitigates pathology of these diseases. In this study, treatment with an adeno-associated virus vector carrying the DOK7 gene, an essential gene for NMJ formation, was demonstrated to enhance the formation of NMJs, motor activity, and life span in a mouse model of amyotrophic lateral sclerosis (ALS), a progressive, multifactorial motor neuron degenerative disease.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2017 2016

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (2 results)

  • [Journal Article] DOK7 gene therapy enhances motor activity and life span in ALS model mice2017

    • Author(s)
      Miyoshi Sadanori、Tezuka Tohru、Arimura Sumimasa、Tomono Taro、Okada Takashi、Yamanashi Yuji
    • Journal Title

      EMBO Molecular Medicine

      Volume: 9 Issue: 7 Pages: 880-889

    • DOI

      10.15252/emmm.201607298

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The carboxyl-terminal region of Dok-7 plays a key, but not essential, role in activation of muscle-specific receptor kinase MuSK and neuromuscular synapse formation2017

    • Author(s)
      Ryo Ueta, Tohru Tezuka, Yosuke Izawa, Sadanori Miyoshi, Satoru Nagatoishi, Kouhei Tsumoto, Yuji Yamanashi
    • Journal Title

      The Journal of Biochemistry

      Volume: 161 Pages: 269-277

    • DOI

      10.1093/jb/mvw073

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Postnatal knockdown of dok-7 gene expression in mice causes structural defects in neuromuscular synapses and myasthenic pathology2016

    • Author(s)
      Eguchi T, Tezuka T, Miyoshi S, and Yamanashi Y
    • Journal Title

      Genes to Cells

      Volume: 印刷中 Issue: 6 Pages: 670-676

    • DOI

      10.1111/gtc.12370

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 神経筋接合部の形成増強による 筋萎縮性側索硬化症(ALS)マウスの病態改善と延命2017

    • Author(s)
      三好貞徳、手塚徹、有村純暢、伴野太郎、岡田尚巳、山梨裕司
    • Organizer
      日本筋学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 生後のNMJの維持におけるDok-7の役割2016

    • Author(s)
      江口貴大、手塚徹、三好貞徳、山梨裕司
    • Organizer
      第2回日本筋学会
    • Place of Presentation
      国立精神・神経医療研究センター(東京都小平市)
    • Year and Date
      2016-08-05
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2019-03-29  

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