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The mechanism underlying P2X4 receptor regulation in the neuropathic pain state

Research Project

Project/Area Number 19603005
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Pain science
Research InstitutionKyushu University

Principal Investigator

SAITOH Hidetoshi  Kyushu University, 薬学研究院, 助教 (90444794)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords痛み / 神経科学 / 転写調節
Research Abstract

現在、世界には「神経障害性疼痛」に苦しむ患者が千数百万人も存在し、救われ難い痛みに苦しんでいる。我々の研究チームは、脊髄のミクログリア細胞に過剰発現するP2X4受容体が神経因性疼痛発症課程における重要な分子であることを提示しているが、P2X4受容体の過剰発現メカニズムは不明であった。本研究は、P2X4受容体遺伝子はその上流領域配列によってレチノイン酸受容体の標的遺伝子となる潜在的可能性を示し、このメカニズムによって脊髄ミクログリアにおけるP2X4受容体発現増強が引き起こされ、如いては病態の形成に関与していることを示すものである。

Report

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

    (14 results)

All 2009 2008 2007 Other

All Journal Article (9 results) (of which Peer Reviewed: 3 results) Presentation (4 results) Remarks (1 results)

  • [Journal Article] Activation of P2X7 receptors induces CCL3 production in microglial cell S through transcription factor NFAT.2009

    • Author(s)
      Kataoka A, Tozaki-Saitoh H, Koga Y Tsuda M, Inoue K.
    • Journal Title

      Journal of Neurochemistry 108

      Pages: 115-125

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] P2Y12 receptors in spinal microglia are required for neuropathic pain after peripheral nerve injury2008

    • Author(s)
      Tozaki-Saitoh H, Tsuda M, Miyata H, Ueda K, Kohsaka S, Inoue K.
    • Journal Title

      Journal of Neuroscience 28

      Pages: 4949-4956

    • Related Report
      2008 Final Research Report
  • [Journal Article] Activation of dorsal horn microglia contributes to diabetes-induced tactile allodynia via extracellular signal-regulated protein kinase signaling2008

    • Author(s)
      Tsuda M, Ueno H, Kataoka A, Tozaki-Saitoh H, Inoue K.
    • Journal Title

      Glia 56

      Pages: 378-86

    • Related Report
      2008 Final Research Report
  • [Journal Article] Lyn tyrosine kinase is required for P2X(4) receptor upregulation and neuropathic pain after peripheral nerve injury2008

    • Author(s)
      Tsuda M, Tozaki-Saitoh H, Masuda T, Toyomitsu E, Tezuka T, Yamamoto T, Inoue K.
    • Journal Title

      Glia 56

      Pages: 50-58

    • Related Report
      2008 Final Research Report
  • [Journal Article] Activation of P2X7 receptors induces CCL3 production in microglial cells through transcription factor NFAT2008

    • Author(s)
      Kataoka A, Tozaki-Saitoh H, Koga Y, Tsuda M, Inoue K.
    • Journal Title

      Journal of Neurochemistry 108

      Pages: 115-125

    • Related Report
      2008 Final Research Report
  • [Journal Article] P2Y12 receptors in spinal microglia are required for neuropathic pain after peripheral nerve injury.2008

    • Author(s)
      Tozaki-Saitoh H, Tsuda M, Miyata H, Ueda K, Kohsaka s, Inoue K.
    • Journal Title

      Journal of Neuroscience 28

      Pages: 4949-4956

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lyn tyrosine kinase is required for P2X(4) receptor upregulation and neuropathic pain after peripheral nerve injury.2008

    • Author(s)
      Tsuda M, Tozaki-Saitoh H, Masuda T, Toyomitsu E, Tezuka T, Yamamoto T, Inoue K.
    • Journal Title

      Glia 56

      Pages: 50-58

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modification of neuropathic pain sensation through microglial ATP receptors2007

    • Author(s)
      Inoue K, Tsuda M, Tozaki-Saitoh H.
    • Journal Title

      Purinergic Signaling 3

      Pages: 311-316

    • Related Report
      2008 Final Research Report
  • [Journal Article] Mechanisms underlying fibronectin -induced upregulation of P2XR expression in microglia: distinct roles of PI3K-Akt and MEK-ERK signaling pathways

    • Author(s)
      Tsuda M, Toyomitsu E, Kometani M, Tozaki-Saitoh H, Inoue K.
    • Journal Title

      Journal of Cellular and Molecular Medicine (in press)

    • Related Report
      2008 Final Research Report
  • [Presentation] 神経因性疼痛発症メカニズムにおける脊髄ミクロクリアP2Y12受容体の関与2008

    • Author(s)
      喪藤秀俊, 津田誠, 井上和秀
    • Organizer
      第31回日本神経科学大会
    • Place of Presentation
      東京国際フォーラム
    • Year and Date
      2008-07-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] 神経因性疼痛発症メカニズムにおける脊髄ミクログリアP2Y12受容体の関与

    • Author(s)
      齊藤秀俊、津田誠、井上和秀
    • Organizer
      第31回日本神経科学大会
    • Related Report
      2008 Final Research Report
  • [Presentation] 神経因性疼痛発症過程におけるP2Y12 受容体の関与

    • Author(s)
      齊藤秀俊、津田誠、井上和秀
    • Organizer
      第81回日本薬理学会年会
    • Related Report
      2008 Final Research Report
  • [Presentation] P2X4受容体発現制御を介したレチノイン酸シグナルの神経因性疼痛への関与

    • Author(s)
      齊藤秀俊、津田誠、小泉修一、井上和秀
    • Organizer
      第80回日本薬理学会年会
    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://210.233.60.66/~yakkou/

    • Related Report
      2008 Final Research Report

URL: 

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

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