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Stabilization / dimerization of nNOS in PTZ-kindling animals

Research Project

Project/Area Number 19790080
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Biological pharmacy
Research InstitutionTokushima Bunri University

Principal Investigator

WATANABE Masatomo  Tokushima Bunri University, 薬学部, 准教授 (30306203)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,750,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2007: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywords神経薬理学 / 神経科学 / 神経型一酸化窒素合成酵素(nNOS) / 一酸化窒素(NO) / てんかん / ペンチレンテトラゾール(PTZ) / キンドリング / ユビキチン様タンパク質(UBL) / nNOS / 脳神経疾患 / コビキチン様タンパク質修飾
Research Abstract

ペンチレンテトラゾール(PTZ)によって誘発されるキンドリング獲得は、神経型一酸化窒素合成酵素(nNOS)の持続的高発現と、それによる過剰な一酸化窒素(NO)発生が原因となる。本研究では、キンドリングにおけるnNOSは、Hsp9との結合を伴うホモ二量体を形成することで安定性を亢進させ、高活性を持続的に維持していることが示唆された。さらに、新たなnNOS安定化メカニズムとしてユビキチン様タンパク質修飾の関与が示唆された。また本研究にて、定常状態のNOが痙攣誘発を抑制していることが明らかとなり、てんかん発症におけるnNOS-NOには、抑制性と興奮性の相反する神経活動を制御する役割があることが明らかとなった。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (12 results)

All 2009 2008 2007

All Journal Article (6 results) (of which Peer Reviewed: 4 results) Presentation (6 results)

  • [Journal Article] Paradoxical Facilitation of Pentylenetetrazole -induced Seizure Susceptibility in Mice Lacking Neuronal Nitric Oxide Synthase2009

    • Author(s)
      Itoh K and Watanabe M
    • Journal Title

      Neuroscience 159

      Pages: 735-743

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Paradoxical Facilitation of Pentylenetetrazole-induced Seizure Susceptibility in Mice Lacking Neuronal Nitric Oxide Synthase2009

    • Author(s)
      Itoh K and Watanabe M.
    • Journal Title

      Neuroscience 159

      Pages: 735-743

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stabilization /dimerization of nNOS is mediated by the post-translational protein modifications in PTZ-kindling animals2008

    • Author(s)
      Itoh K and Watanabe M
    • Journal Title

      Ann Rep Jpn Epi Res Found 19

      Pages: 51-58

    • Related Report
      2008 Final Research Report
  • [Journal Article] The entry of manganese ions into the brain is accelerated by the activation of N-methyl-D-aspartate receptors2008

    • Author(s)
      Itoh K, Sakata M, Watanabe M, Aikawa Y, Fujii H.
    • Journal Title

      Neuroscience 154

      Pages: 732-740

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Stabilization/dimerization of nNOS is mediated by the post-translational protein modifications in PTZ-kindling animals2008

    • Author(s)
      Itoh K and Watanabe M.
    • Journal Title

      Ann Rep Jpn Epi Res Found 19

      Pages: 51-58

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Increased production of lipocalin-type prostaglandin D synthase in leptomeningeal cells through contact with astrocytes.2007

    • Author(s)
      K. Fujimori, M. Watanabe, Y. Urade, K. Ishikawa.
    • Journal Title

      Neuroscience Letters 423

      Pages: 133-137

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] PTZ-induced Seizure Susceptibility in Mice Lacking anNOS2008

    • Author(s)
      K. Itoh, S. Hama, K. Fujisaki, Y. Aikawa, and M. Watanabe
    • Organizer
      神経科学会
    • Place of Presentation
      東京国際フォーラム(東京)
    • Year and Date
      2008-07-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Nitric oxide generating by neuronal nitric-oxide synthase has anti- and pro-convulsive reciprocal effects.2008

    • Author(s)
      M. Watanabe, Y. Aikawa, K. Itoh
    • Organizer
      第81回日本薬理学会年会
    • Place of Presentation
      パシフィコ横浜(横浜)
    • Year and Date
      2008-03-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] PTZ-induced Seizure Susceptibility in Mice Lacking αnNOS2008

    • Author(s)
      K. Itoh, S. Hama, K. Fujisaki ,Y. Aikawa, and M. Watanabe
    • Organizer
      第31回日本神経科学会大会(Neuro2008)
    • Place of Presentation
      東京国際フォーラム(東京)
    • Related Report
      2008 Final Research Report
  • [Presentation] Nitric oxide generating by neuronal nitric-oxide synthase has anti- and pro-convulsive reciprocal effects2008

    • Author(s)
      M. Watanabe, Y. Aikawa and K. Itoh.
    • Organizer
      第81回日本薬理学会年会
    • Place of Presentation
      パシフィコ横浜(横浜)
    • Related Report
      2008 Final Research Report
  • [Presentation] A higher sensitive pentylenetetrazole-induced seizures in nNOS deficient mice.2007

    • Author(s)
      M. Watanabe, Y. Aikawa, K. Itoh.
    • Organizer
      第30回日本神経科学会大会
    • Place of Presentation
      パシフィコ横浜(横浜)
    • Year and Date
      2007-09-12
    • Related Report
      2007 Annual Research Report
  • [Presentation] A higher sensitive pentylenetetrazole-induced seizures in nNOS deficient mice2007

    • Author(s)
      M. Watanabe, Y. Aikawa and K. Itoh.
    • Organizer
      第30回日本神経科学会大会(Neuro2007)
    • Place of Presentation
      パシフィコ横浜(横浜)
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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