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Neuroimmunologic research of endogenous and exogenous protection on brain, taking account of the meaning of the BBB's existence

Research Project

Project/Area Number 15591660
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anesthesiology/Resuscitation studies
Research InstitutionTokyo Medical University

Principal Investigator

MUROZONO Michihiro  Tokyo Medical University, Medicine, lecturer, 医学部, 助手 (70276947)

Co-Investigator(Kenkyū-buntansha) MTSUMOTO Shohei  Tokyo Medical University, Medicine, lecturer, 医学部, 講師 (30256250)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsmdrla / knockout mouse / VIP / PACAP / Brain ischemia / mdr1a / 局所脳虚血 / BBB
Research Abstract

We investigated the functional effects of mdrla encoded P-gp on focal cerebral ischemia, which is prepared by the middle cerebral artery occlusion(MCAO) model, using mdrl a knockout (ko) mice. The ischemic damages were evaluated with measuring and comparing the infarct volumes of mdrla ko mice and wild mice. Infarction volume of mdrla ko mice group was significantly smaller than that seen in wild mice group. The blood pressure and heart rate did not differ between groups. There are no significant differences in PaO_2, PaCO_2, B.E. and hemoglobin before ischemia and 30 min after reperfusion. India ink staining of cerebrovascular anatomy of the circle of Willis demonstrated that there were no gross anatomic differences in the vascular pattern of the cerebral circulation. These results indicate that P-gp leads to exacerbate cerebral infarction in brain ischemia. Next, We examined the effects of IK312548 and Ac-PACAP, which are novel derivatives of vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating peptide(PACAP), on brain ischemia induced by two-vessel occlusion(2-VO) and MCAO in mice. IK312548 and Ac-PACAP treatment inhibited neuronal death by 2-VO and MCAO. Concurrently, we examined the neuroprotective effects of ac-PACAP on brain neuronal death induced by glutamate (Glu). The significant inhibitions of ac-PACAP on the cell death unduced by Glu were seen in the neuron/glia cocultured cells. These results indicate that both of them showed the neuroprotection.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (17 results)

All 2005 2004

All Journal Article (17 results)

  • [Journal Article] 新規VIPならびにPACAP誘導体の低濃度腹腔内投与での脳保護効果-2種類の脳虚血モデル動物を用いて-2005

    • Author(s)
      武田 直子
    • Journal Title

      麻酔 54

      Pages: 240-248

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 新規PACAP誘導体のグリア細胞を介する脳保護効果2005

    • Author(s)
      宮本 麻央
    • Journal Title

      蘇生 24

      Pages: 10-16

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Neuroprotective Effects of Novel Derivatives of Vasoactive Intestinal Peptide and Pituitary Adenylate Cyclase-activating Peptide in Two Brain Ischemia Models On Mice2005

    • Author(s)
      Takeda N., Murozono M., Watanabe S., Isshiki A., Watanabe Y.
    • Journal Title

      Masui 54(3)

      Pages: 240-248

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Neuroprotective effects of a novel PACAP derivative depending on presence of glia cells2005

    • Author(s)
      Miyamoto M., Takeda N., Murozono M., Matsumoto S., Ishhiki A., Watanabe Y.
    • Journal Title

      Sosei 24(1)

      Pages: 10-16

    • NAID

      10015565547

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 新規VIPならびにPACAP誘導体の低濃度腹腔内投与での脳保護効果-2種類の脳虚血モデル動物を用いて-2005

    • Author(s)
      武田直子
    • Journal Title

      麻酔 54(3)

      Pages: 240-248

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 新規PACAP誘導体のグリア細胞を介する脳保護効果2005

    • Author(s)
      宮本麻央
    • Journal Title

      蘇生 24(1)

      Pages: 10-16

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Protein Kinase C-γ and Calcium/Calmodulin-Dependent Protein Kinase II-α Are persistently Translocated to Cell Membranes of the Rat Brain During and After Middle Cerebral Artery Occlusion2004

    • Author(s)
      Matsumoto S
    • Journal Title

      Journal of Cerebral Blood Flow and Metabolism 24

      Pages: 51-61

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Neuroprotective and neurotoxic effects of cyclosporine A on transient focal ischemia in mdrla knockout mice2004

    • Author(s)
      Murozono
    • Journal Title

      European Journal of Pharmacology 498

      Pages: 115-118

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] イソフルレンがマウス脳虚血時のプロテインキナーゼCとカルシウムカルモジュリン依存性プロテインキナーゼIIのトランスロケーションに与える影響2004

    • Author(s)
      松本恵理
    • Journal Title

      蘇生 23

      Pages: 1-7

    • NAID

      10012117706

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 第6回医科学フォーラム2004

    • Author(s)
      松本 晶平
    • Journal Title

      東京医大誌 62

      Pages: 98-102

    • NAID

      10012079650

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Protein Kinase C-γ and Calcium/Calmodulin-Dependent Protein Kinase II-α Are Persistently Translocated to Cell Membranes of the Rat Brain During and After Middle Cerebral Artery Occlusion2004

    • Author(s)
      Matsumoto S., Shamloo M., Matsumoto E., Isshiki A., Wieloch T.
    • Journal Title

      Journal of Cerebral Blood Flow and Metabolism 24(1)

      Pages: 54-61

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Neuroprotective and neurotoxic effects of cyclosporine A on transient focal ischemia in mdrla knockout mice2004

    • Author(s)
      Murozono M., Matsumoto S., Matsumoto E., Isshiki A., Watanabe Y.
    • Journal Title

      European Journal of Pharmacology 498

      Pages: 115-118

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Clinical dose of Isoflurane prevents calcium/calmodulin dependent protein kinase II but not protein kinase C translocation to synaptic membrane in the ischernic mice brain2004

    • Author(s)
      Matsumoto E., Matsumoto S., Murozono M., Watanabe Y., Isshiki A.
    • Journal Title

      Sosei 23(1)

      Pages: 1-7

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Protein Kinase C-γ and Calcium/Calmodulin-Dependent Protein Kinase II-α Are Persistently Translocated to Cell Membranes of the Rat Brain During and After Middle Cerebral Artery Occlusion2004

    • Author(s)
      Matsumoto S
    • Journal Title

      Journal of Cerebral Blood Flow and Metabolism 24(1)

      Pages: 51-61

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Neuroprotective and neurotoxic effects of cyclosporine A on transient focal ischemia in mdr1a knockout mice2004

    • Author(s)
      Murozono
    • Journal Title

      European Journal of Pharmacology 498

      Pages: 115-118

    • Related Report
      2004 Annual Research Report
  • [Journal Article] イソフルレンがマウス脳虚血時のプロテインキナーゼCとカルシウムカルモジュリン依存性プロテインキナーゼIIのトランスロケーションに与える影響2004

    • Author(s)
      松本 恵理
    • Journal Title

      蘇生 23(1)

      Pages: 1-7

    • NAID

      10012117706

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 第6回医科学フォーラム2004

    • Author(s)
      松本晶平
    • Journal Title

      東京医大誌 62(1)

      Pages: 98-102

    • NAID

      10012079650

    • Related Report
      2004 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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