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Common coupling protein of amyotrophic lateral sclerosis and spinocerebellar degeneration

Research Project

Project/Area Number 23591279
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurology
Research InstitutionYokohama City University

Principal Investigator

KOYANO Shigeru  横浜市立大学, 医学部, 准教授 (50315818)

Co-Investigator(Kenkyū-buntansha) KUROIWA Yoshiyuki  帝京大学, 医学部, 客員教授 (40135249)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2012: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords筋萎縮性側索硬化症 / 脊髄小脳変性症 / TDP-43 / ATXN / 脳神経疾患 / ポリグルタミン病
Research Abstract

The aim of this study is clarify the common coupling protein of amyotrophic lateral sclerosis and spinocerebellar degeneration. The ATXN protein and TDP-43 protein may be combined each other. We prove this histopathologically.
(1) We measured the number of the CAG repeat in the patient of amyotrophic lateral sclerosis, but it was in the normal range. (2) Pathological intracellular inclusions in ALS were not found by immunostaining of an anti-ATXN protein antibody. Only an ataxin-2 expressed in the intracytoplasmic inclusion body of the dentate gyrus of the part in case of ALS with dementia. (3) Immunohistochemistry for TDP-43 in an anterior horn of the spinal cord in SCA2 has demonstrated three different expression patterns: 'intranuclear' 'nuclear with inclusions' and 'cytoplasmic'. These results show that the translocation of the TDP-43 protein in a nerve cell may play an important role of the cell death of SCD.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (4 results)

All 2014 2013 2011

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

  • [Journal Article] Neuropathological staging of spinocerebellar ataxia type 2 by semiquantitative 1C2-positive neuron typing Nuclear translocation of cytoplasmic 1C2 underlies disease progression of spinocerebellar ataxia type 2.2014

    • Author(s)
      Koyano S, Yagishita S, Kuroiwa Y, Tanaka F, Uchihara T.
    • Journal Title

      Brain Pathol

      Volume: 26 Issue: 6 Pages: 599-606

    • DOI

      10.1111/bpa.12146

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mutations in COQ2 in familial and sporadic multiple-system atrophy the multiple-system atrophy research collaboration2013

    • Author(s)
      Mitsui J, et. al.
    • Journal Title

      N Engl J Med

      Volume: 369 Issue: 3 Pages: 233

    • DOI

      10.1056/nejmoa1212115

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] 多系統萎縮症と尿酸との関連性2013

    • Author(s)
      児矢野繁、鈴木ゆめ、田中章景
    • Organizer
      第54回神経学会総会
    • Place of Presentation
      東京国際フォーラム(東京都千代田区)
    • Related Report
      2013 Annual Research Report
  • [Presentation] SCA2とALSにおける共通結合蛋白(TDP-43とATXN2)2011

    • Author(s)
      児矢野繁、黒岩義之、柳下三郎、内原俊記
    • Organizer
      第52回日本神経学会総会
    • Place of Presentation
      名古屋
    • Year and Date
      2011-05-18
    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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