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大脳皮質局所神経回路の抑制性シナプスの機能的解析

Publicly Offered Research

Project AreaThe study on the neural dynamics for understanding communication in terms of complex hetero systems
Project/Area Number 22120518
Research Category

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

Allocation TypeSingle-year Grants
Review Section Complex systems
Research InstitutionNational Institute for Physiological Sciences

Principal Investigator

窪田 芳之  生理学研究所, 大脳皮質機能研究系, 准教授 (90192567)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2011: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2010: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Keywords翡翠体細胞 / 錐体細胞 / 樹状突起 / 棘突起 / 非錐体細胞 / GABA / 伝導 / 抑制性シナプス / 大脳皮質
Research Abstract

大脳新皮質には、基本的な単位である局所神経回路が多数存在し、それらの活動が基となって、高次脳機能が具現する事がこれまでの研究で明らかである。本研究では、その構成要素の中の抑制性シナプスの機能に関する解析を行う。本年度は、引き続き、ラットの皮質のスライス標本を用いて、皮質の錐体細胞にシナプス結合するFSバスケット細胞の抑制性シナプスの位置やそのPSDの大きさ等を、ペア電気生理記録法と電子顕微鏡による観察を組み合わせて行った。錐体細胞の細胞体から40μmより遠くのみに神経終末がコンタクトするFSバスケット細胞は、発火しても錐体細胞の細胞体からの電気記録でipscは検出できないことを認めた。さらに、その結合部分が本当にシナプス形成しているかどうかを電子顕微鏡で観察した結果、シナプスを形成していることを確認することができた。この結果は、抑制性信号は、40μmよりは遠くに伝導しないことの確証であると考えている。

Report

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

    (18 results)

All 2012 2011 2010 Other

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (10 results) Remarks (3 results)

  • [Journal Article] 一枚の写真「遠くの信号は効率よく,近くの信号はそれなりに」2012

    • Author(s)
      窪田芳之
    • Journal Title

      O plus E

      Volume: 2012年3月号 Pages: 191-192

    • Related Report
      2011 Annual Research Report
  • [Journal Article] Structural basis for the role of inhibition in facilitating adult brain plasticity2011

    • Author(s)
      Chen JL, Lin WC, Cha JW, So PT, Kubota Y, Nedivi E
    • Journal Title

      Nature Neuroscience

      Volume: 14 Issue: 5 Pages: 587-594

    • DOI

      10.1038/nn.2799

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Highly differentiated projection-specific cortical subnetworks2011

    • Author(s)
      Mieko Morishima
    • Journal Title

      Journal of Neuroscience

      Volume: 31 Issue: 28 Pages: 10380-1039150

    • DOI

      10.1523/jneurosci.0772-11.2011

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conserved properties of dendritic trees in four cortical interneuron subtypes2011

    • Author(s)
      Kubota Y, Karube F, Nomura M, Gulledge AT, Mochizuki A, Schertel A and Kawaguchi Y
    • Journal Title

      Scientific Reports

      Volume: 1 Issue: 1

    • DOI

      10.1038/srep00089

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Selective Coexpression of Multiple Chemical Markers Defines Discrete Populations of Neocortical GABAergic Neurons2011

    • Author(s)
      Kubota Y, Shigematsu N, Karube F, Sekigawa A, Kato S, Yamaguchi N, Hirai Y, Morishima M, Kawaguchi Y
    • Journal Title

      Cerebral Cortex

      Volume: (in press)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 皮質非錐体細胞の樹状突起の形態に関する普遍的法則2012

    • Author(s)
      窪田芳之、苅部冬樹、野村真樹、川口泰雄
    • Organizer
      第89回日本生理学会大会
    • Place of Presentation
      長野県松本文化会館(長野県松本市)
    • Year and Date
      2012-03-29
    • Related Report
      2011 Annual Research Report
  • [Presentation] 皮質非錐体細胞の樹状突起の形態に関する普遍的法則2012

    • Author(s)
      窪田芳之、苅部冬樹、野村真樹、川口泰雄
    • Organizer
      第117回日本解剖学会総会
    • Place of Presentation
      山梨大学(山梨県甲府市)
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] Conserved properties of dendritic trees in four cortical nonpyramidal cell subtypes2012

    • Author(s)
      Kubota Y, Karube F, Nomura M, Gulledge AT, Mochizuki A, Schertel A, Kawaguchi Y
    • Organizer
      1^<st> International Symposium/59^<th> NIBB Conference "Neocortical organization"
    • Place of Presentation
      岡崎コンファレンスセンター(愛知県岡崎市)
    • Year and Date
      2012-03-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] Microtubule distribution in bifurcated dendrites : Using FIB/SEM microscopy for ultrastructural volume reconstruction of cortical tissue2011

    • Author(s)
      Kubota Y, A, Schertel A, Kawaguchi Y
    • Organizer
      北米神経科学大会
    • Place of Presentation
      米国ワシントン
    • Year and Date
      2011-11-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] Dendritic dimensions and signal conduction properties of cortical nonpyramidal cells2011

    • Author(s)
      Kubota Y, Karube F, Nomura M, Gulledge AT, Mochizuki A, Schertel A, Kawaguchi Y
    • Organizer
      ICCN2011
    • Place of Presentation
      ニセコヒルトン(北海道)
    • Year and Date
      2011-06-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] 大脳皮質非錐体細胞へのシナプス入力分布2011

    • Author(s)
      Kubota Y
    • Organizer
      第88回日本生理学会、第116回日本解剖学会合同大会日中韓シンポジウム
    • Place of Presentation
      横浜(東日本大震災の影響で、誌上発表に変更)
    • Year and Date
      2011-03-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] Dendritic dimensions and signal conduction properties of cortical nonpyramidal cells2010

    • Author(s)
      Kubota Y, Karube F, Nomura M, Gulledge A, Mochizuki A, Kawaguchi Y
    • Organizer
      2010 Annual Meeting Society For Neuroscience
    • Place of Presentation
      サンディエゴ(アメリカ)
    • Year and Date
      2010-11-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] Dendritic dimensions and signal conduction properties of cortical nonpyramidal cells2010

    • Author(s)
      Kubota Y
    • Organizer
      第33回日本神経科学大会シンポジウム
    • Place of Presentation
      神戸国際会議場(兵庫県)
    • Year and Date
      2010-09-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] Dendritic dimensions and signal conduction properties of cortical nonpyramidal cells2010

    • Author(s)
      Kubota Y, Karube F, Nomura M, Gulledge A, Mochizuki A, Kawaguchi Y
    • Organizer
      第5回国際神経回路会議JST international meeting "Microcircuitry of Cortex"
    • Place of Presentation
      未来館(東京都)
    • Year and Date
      2010-06-30
    • Related Report
      2010 Annual Research Report
  • [Presentation] Dendritic dimensions and signal conduction properties of cortical nonpyramidal cells2010

    • Author(s)
      Kubota Y, Karube F, Nomura M, Gulledge A, Mochizuki A, Kawaguchi Y
    • Organizer
      第4回国際神経回路会議JSPS international meeting "Signal Processing Mechanisms of Cortical Neurons"
    • Place of Presentation
      カヌチャリソート(沖縄県)
    • Year and Date
      2010-06-25
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.nips.ac.jp/contents/release/entry/2011/09/post-188.html

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.nips.ac.jp/circuit/

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.nips.ac.jp/circuit/

    • Related Report
      2010 Annual Research Report

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

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