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The mechanism of neuroprotection by brain hypothermia in the view of thermal reaction of neurovascular unit

Research Project

Project/Area Number 16K10939
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Anesthesiology
Research InstitutionKyushu Women's University

Principal Investigator

M Tomohiro  九州女子大学, 家政学部, 准教授 (50314828)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords脳低温療法 / T細胞 / パーフォリン / ニューロン死 / 接着因子 / 脳血管内皮細胞 / アポトーシス / ケモカイン / Neurovascular Unit / TNF-α / タイトジャンクション蛋白 / IL-17 / ネクローシス / グランザイムB / 高温培養 / サイトカイン / 血液脳関門 / 脳保護 / 脳高温 / ニューロン傷害性因子
Outline of Final Research Achievements

The underlying mechanisms of therapeutic hypothermia for the neuroprotection are partially understood. Here we examined the effects of hypothermia and hyperthermia on T cell-derived perforin (Pfn) and the expression/production of adhesion molecules and chemokines by brain microvascular endothelial (bEnd.3)cells in an attempt to identify the mechanisms of this therapy. We also evaluated whether Pfn induced death in neuronal cells and bEnd.3 cells.
Consequently, compared with normothermia, Pfn release in T cells was reduced by hypothermia but augmented by hyperthermia. Pfn caused the death of neuronal cells and induced both apoptosis/necrosis in bEnd.3 cells; both effects were concentration-dependent.
In bEnd.3 cells, the mRNA expression of adhesion molecules was reduced by hypothermia compared with normothermia. The production of chemokines was reduced by hypothermia but augmented by hyperthermia.

Academic Significance and Societal Importance of the Research Achievements

本研究は、ニューロンの周りに存在し、その死の過程に関与するNeurovascular Unit(NVU)構成細胞の中で、特に、T細胞(広義)と脳血管内皮細胞に着目し、それら由来のニューロン傷害性因子発現に低温・高温が及ぼす影響を調べ、脳低温療法による脳保護機構を説明するものであった。得られた結果の中で、特に、T細胞由来パーフォリン(Pfn)は、血液脳関門(BBB)を構成する脳血管内皮細胞死を誘導した。脳血管内皮細胞死は、血管透過性亢進とBBB崩壊に基づく末梢性炎症細胞の更なる浸潤を伴い、脳障害増悪に繋がるため、Pfnの低温下での産生低下は脳保護機構に非常に重要であることが示唆された。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2018 2017 2016

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Journal Article] Bartonella henselae DNA in Seronegative Patients with Cat-Scratch Disease2018

    • Author(s)
      M.Yanagihara, H.Tsuneoka, A.Tanimoto, K.Otsuyama, J.Nishikawa, T.Matsui, J.Nojima, K.Ichihara
    • Journal Title

      Emerg Infect Dis

      Volume: 24 Issue: 5 Pages: 924-925

    • DOI

      10.3201/eid2405.152033

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reduction of the expression and production of adhesion molecules and chemokines by brain endothelial cells in response to tumor necrosis factor-α and interleukin-17 in hypothermia2016

    • Author(s)
      Matsui T, Yoshida Y
    • Journal Title

      Clin Exp Neuroimmunol

      Volume: - Issue: 2 Pages: 174-182

    • DOI

      10.1111/cen3.12298

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] マイクログリアおよびT細胞由来ニューロン傷害性因子の温度依存的産生2016

    • Author(s)
      松井智浩
    • Journal Title

      山口医学

      Volume: 65 Pages: 81-85

    • NAID

      130006513052

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Hypothermia reduces and hyperthermia augments T cell-derived release of perforin that mediates the death of brain endothelial cells and neuronal cells2018

    • Author(s)
      T.Matsui
    • Organizer
      7th International Hypothermia & Temperature Management Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Book] 最新臨床検査学講座/免疫検査学「赤血球抗体検査」2017

    • Author(s)
      松井智浩、窪田哲朗、藤田清貴、細井英司、梶原通子、荒木延夫、長田誠、面川進、高山成伸、谷口菊代、西尾久英、西宮達也、能登谷武、藤井康彦、坊池義浩、松橋美佳、望月照次
    • Total Pages
      421
    • Publisher
      医歯薬出版
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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