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天然変性タンパク質の機能解析によるALSの病態機序の解明

Publicly Offered Research

Project AreaTarget recognition and expression mechanism of intrinsically disordered protein
Project/Area Number 22113506
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionNiigata University

Principal Investigator

小野寺 理  新潟大学, 脳研究所, 教授 (20303167)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2010: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
KeywordsTDP-43 / ALS / 天然変性蛋白 / スプライシング / 封入体
Research Abstract

ALSの原因遺伝子としてfused in sarcoma/translated in liposarcoma(FUS/TLS)やTDP-43が見いだされた.これらの遺伝子の発見は,ALS研究において新たな病態機序を提唱するに至った.驚くことに,何れの遺伝子もRNA結合能を持ち,RNA代謝において機能すると考えられている.さらに何れの蛋白質も,天然変性蛋白領域を高頻度で含んでいること,さらにその変性領域に変異が集中している.特にTDP-43は現在まで30種類以上の変異が報告されているが,そのほとんどすべてがC末の本来的に不規則な領域に集中している.またC末は単独では凝集体を形成しやすい.このため,これらの蛋白質の天然変性領域の機能を明らかにすることが,本症の病態解明において重要である.しかし,この天然変性蛋白領域の機能については全く明らかとなっていない.我々はTDP-43には新しい多数のスプライシングバリアントが存在し,このスプライシングバリアントの多くが天然変性蛋白領域に関係していることを見いだした.この事実からTDP-43の天然変性蛋白領域はTDP-43の安定性に深く寄与しており,これを欠くTDP-43のスプライシングバリアントは凝集性を増すことを見いだした.この発見により,TDP-43の天然変性蛋白領域の本症への関与が示された.

Report

(2 results)
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (15 results)

All 2012 2011 2010

All Journal Article (5 results) (of which Peer Reviewed: 2 results) Presentation (10 results)

  • [Journal Article] Co-occurrence of argyrophilic grain disease in sporadic amyotrophic lateral sclerosis2012

    • Author(s)
      Soma K, Fu YJ, Wakabayashi K, Onodera O, Kakita A, Takahashi H
    • Journal Title

      Neuropathology

      Volume: 38(1) Issue: 1 Pages: 54-60

    • DOI

      10.1111/j.1365-2990.2011.01175.x

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 家族性ALS ALS10(遺伝性ALS-TDP)の臨床と病理2011

    • Author(s)
      今野卓哉, 石原智彦, 西洋正豊, 小野寺理
    • Journal Title

      Clinical Neuroscience

      Volume: 29巻9号 Pages: 1019-1021

    • Related Report
      2011 Annual Research Report
  • [Journal Article] Primary lateral sclerosis : Upper-motor-predominant amyotrophic lateral sclerosis with frontotemporal lobar degeneration-immunohistochemical and biochemical analyses of TDP-432011

    • Author(s)
      Kosaka T, Fu YJ, Shiga A, Ishidaira H, Tan CF, Tani T, Koike R, Onodera O, Nishizawa M, Kakita A, Takahashi H
    • Journal Title

      Neuropathology. 2011

      Volume: 32 Issue: 4 Pages: 373-384

    • DOI

      10.1111/j.1440-1789.2011.01271.x

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 【ALS Update】ALSの病態FUSの観点から2010

    • Author(s)
      志賀篤, 西澤正豊, 小野寺理
    • Journal Title

      医学のあゆみ

      Volume: 253 Pages: 236-240

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 【神経変性疾患におけるTDP-43】家族性筋萎縮性側索硬化症とTDP-432010

    • Author(s)
      石原智彦, 横関明男, 西澤正豊, 高橋均, 小野寺理
    • Journal Title

      最新医学

      Volume: 65 Pages: 1648-1653

    • Related Report
      2010 Annual Research Report
  • [Presentation] Tardbp欠損マウスのmRNA選択的スプライシングと組織特異的な多様性Tardbp alternatively spliced mRNA and tissue-specific variation in heterozygous Tardbp-deficient mice2011

    • Author(s)
      廣川祥子, 佐藤俊哉, 石原知彦, 藤野赳至, 近藤千草, 横山峯介, 崎村健司, 西澤正豊, 小野寺理
    • Organizer
      分子生物学会
    • Place of Presentation
      横浜
    • Year and Date
      2011-12-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] ALS関連蛋白TDP-43の自己発現調節機能に関与するスプライシング因子の検討Splicing factors involved in an autoregulation of the ALS-associated protein TDP-432011

    • Author(s)
      桑原美咲, 石原智彦, 志賀篤, 今野卓哉, 小山哲秀, 西澤正豊, 小野寺理
    • Organizer
      分子生物学会
    • Place of Presentation
      横浜
    • Year and Date
      2011-12-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] Aberrant splicing of POLDIP3 gene in motor neuron with ALS2011

    • Author(s)
      A.SHIGA, T.ISHIHARA, A.MIYASHITA, T.KATO, M.KUWABARA, A.YOKOSEKI, R.KUWANO, A.KAKITA, H.TAKAHASHI, M.NISHIZAWA, O.ONODERA
    • Organizer
      Neuroscience 2011
    • Place of Presentation
      Washington, D.C.
    • Year and Date
      2011-11-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] Alteration of snRNAs in amyotrophic lateral sclerosis2011

    • Author(s)
      T.ISHIHARA, A.SHIGA, A.KAKITA, A.YOKOSEKI, M.NISHIZAWA, H.TAKAHASHI, O.ONODERA
    • Organizer
      Neuroscience 2011
    • Place of Presentation
      Washington, D.C.
    • Year and Date
      2011-11-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] Alteration of snRNAs in amyotrophic lateral sclerosis2011

    • Author(s)
      T.ISHIHARA, A.SHIGA, A.KAKITA, A.YOKOSEKI, M.NISHIZAWA, H.TAKAHASHI, O.ONODERA
    • Organizer
      6th Brain Research Conference : RNA-Binding Proteins in Neurological Disease
    • Place of Presentation
      Washington, D.C.
    • Year and Date
      2011-11-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] Aberrant splicing of POLDIP3 gene in motor neuron with ALS2011

    • Author(s)
      A.SHIGA, T.ISHIHARA, A.MIYASHITA, T.KATO, M.KUWABARA, A.YOKOSEKI, R.KUWANO, A.KAKITA, H.TAKAHASHI, M.NISHIZAWA, O.ONODERA
    • Organizer
      6th Brain Research Conference : RNA-Binding Proteins in Neurological Disease
    • Place of Presentation
      Washington, D.C.
    • Year and Date
      2011-11-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] TDP-43 depletion causes splicing defects in the genes associated with endomembrane system.2010

    • Author(s)
      A.SHIGA, T.ISHIHARA, A.MIYASHITA, M.YOKOO, Y.ARIIZUMI, A.YOKOSEKI, R.KUWANO, M.NISHIZAWA, O.ONODERA
    • Organizer
      Neuroscience 2010
    • Place of Presentation
      San Diego
    • Year and Date
      2010-11-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] ALS-TDP43の臨床と病理2010

    • Author(s)
      小野寺理
    • Organizer
      第51回日本神経学会総会
    • Place of Presentation
      東京
    • Year and Date
      2010-05-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] Alteration of snRNAs in Amyotrophic Lateral Sclerosis2010

    • Author(s)
      Ishihara, T.Shiga, A.Kakita, A.Yokoseki, A.Nishizawa, M.Takahashi, H.Onodera, O
    • Organizer
      AAN 2010
    • Place of Presentation
      Toronto
    • Related Report
      2010 Annual Research Report
  • [Presentation] Cytoplasmic C-Terminus TDP-43 Aggregate Leads to Increased Phosphorylation of Full-Length TDP-43 in Culture Cell2010

    • Author(s)
      Ariizumi, Y.Ishihara, T.Yokoo, M.Shiga, A.Yokoseki, A.Onodera, O.Nishizawa, M
    • Organizer
      AAN 2010
    • Place of Presentation
      Toronto
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2018-03-28  

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