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Imaging of intracellular dynamics of Ca^<2+>-influx-associated molecules and its physiological significance in endothelial cells.

Research Project

Project/Area Number 21590948
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Circulatory organs internal medicine
Research InstitutionThe University of Tokyo

Principal Investigator

ISSHIKI Masashi  東京大学, 医学部附属病院, 特任准教授 (70302734)

Co-Investigator(Renkei-kenkyūsha) MIZUNO Risuke  東京大学, 医学部附属病院, 特任助教 (30273080)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsシグナル伝達 / 細胞生物学 / 循環器 / 高血圧 / イメージング / マイクロドメイン / 循環器・高血圧
Research Abstract

Intracellular Stim1 localization dynamically changes in response to Ca^<2+> store depletion and its expression level is linked to eNOS activation and NO production via regulation of Ca^<2+> influx level in cultured endothelial cells. We further analyzed endothelium specific Stim1 null mice and confirmed enhanced vascular contraction by phenylephrine, diminished endothelium-dependent vascular relaxation by acetylcholine, and elevation of blood pressure. Thus, Stim1 play a role in blood pressure regulation via eNOS/NO system and endothelial function.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (11 results)

All 2012 2011 2010 2009

All Presentation (11 results)

  • [Presentation] FRET法およびピロアンチモン酸法によるカベオラ小胞内Ca^<2+>イメージング2012

    • Author(s)
      一色政志, ほか
    • Organizer
      第85回日本内分泌学会総会
    • Place of Presentation
      名古屋
    • Year and Date
      2012-04-21
    • Related Report
      2011 Final Research Report
  • [Presentation] 内皮細胞膜直下カベオラ小胞はCa^<2+>放出可能なCa^<2+>ストアサブコンパートメントとして機能する2012

    • Author(s)
      一色政志, ほか
    • Organizer
      第49回日本臨床分子医学会学術集会
    • Place of Presentation
      京都
    • Year and Date
      2012-04-14
    • Related Report
      2011 Final Research Report
  • [Presentation] A FRET-based Sensor Detects Caveolae are Spatially Distinct Ca^<2+> Stores in Endothelial Cells2012

    • Author(s)
      一色政志, ほか
    • Organizer
      第76回日本循環器学会学術総会
    • Place of Presentation
      福岡
    • Year and Date
      2012-03-17
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] Intra-Endoplasmic Reticulum(ER) Ca^<2+> Flow Recharges Preferentially to ER Subcompartments at Caveolin-Rich Cell Edges in Endothelial Cells American Heart Association2011

    • Author(s)
      Masashi Isshiki, et al.
    • Organizer
      Scientific Meeting Sessions
    • Place of Presentation
      Orlando, FL
    • Year and Date
      2011-11-13
    • Related Report
      2011 Final Research Report
  • [Presentation] 内皮細胞膜直下カベオラはCa^<2+>放出のためのストアとして働く2011

    • Author(s)
      一色政志, ほか
    • Organizer
      第34回日本高血圧学会総会
    • Place of Presentation
      宇都宮
    • Year and Date
      2011-10-22
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] Stim1は血管内皮細胞においてTNFα刺激によるLOX-1発現を制御する2011

    • Author(s)
      西本光宏、一色政志, ほか
    • Organizer
      第34回日本高血圧学会総会
    • Place of Presentation
      宇都宮
    • Year and Date
      2011-10-22
    • Related Report
      2011 Final Research Report
  • [Presentation] Intra-ER Ca^<2+> flow recharges preferentially to ER subcompartments at caveolin-rich cell edges in endothelial cells2011

    • Author(s)
      一色政志, ほか
    • Organizer
      第84回日本内分泌学会総会
    • Place of Presentation
      神戸
    • Year and Date
      2011-04-21
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 内皮細胞膜カベオラ集中部位でのCa^<2+> wave発火には局所IP_3産生開始とダイナミックな局所ER内Ca^<2+>調節機構の存在を伴う2010

    • Author(s)
      一色政志, ほか
    • Organizer
      第33回日本高血圧学会総会
    • Place of Presentation
      福岡
    • Year and Date
      2010-10-15
    • Related Report
      2011 Final Research Report
  • [Presentation] 内皮細胞膜カベオラ集中部位でのCa2+ wave発火には局所IP3産生開始とダイナミックな局所ER内Ca2+調節機構の存在を伴う2010

    • Author(s)
      一色政志
    • Organizer
      第33回日本高血圧学会
    • Place of Presentation
      福岡国際会議場(福岡県)
    • Year and Date
      2010-10-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] 血管内皮細胞におけるStim1はストア依存性Ca^<2+>流入を制御してeNOS活性とリンクする2009

    • Author(s)
      西本光宏、一色政志, ほか
    • Organizer
      第32回日本高血圧学会総会
    • Place of Presentation
      大津
    • Year and Date
      2009-10-01
    • Related Report
      2011 Final Research Report
  • [Presentation] 血管内皮細胞におけるStim1はストア依存性Ca^<2+>流入を制御してeNOS活性化とリンクする2009

    • Author(s)
      西本光宏
    • Organizer
      第32回日本高血圧学会
    • Place of Presentation
      滋賀県大津市
    • Year and Date
      2009-10-01
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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