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Role of Muscle Atrophy F-box in the progression of Cardiac Remodeling.

Research Project

Project/Area Number 20890085
Research Category

Grant-in-Aid for Young Scientists (Start-up)

Allocation TypeSingle-year Grants
Research Field Circulatory organs internal medicine
Research InstitutionKanazawa University

Principal Investigator

USUI Soichiro  Kanazawa University, 附属病院, 助教 (50507043)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,302,000 (Direct Cost: ¥2,540,000、Indirect Cost: ¥762,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,742,000 (Direct Cost: ¥1,340,000、Indirect Cost: ¥402,000)
Keywords心不全 / 心肥大 / ユビキチンプロテアソーム / シグナル伝達 / アポトーシス
Research Abstract

心不全の病態形成における解析を行うために、マウスを用いて圧負荷誘導性の心肥大・心不全モデルの作成を行った。C57/B6マウスに、人工呼吸器管理下に横行大動脈に狭窄を作成した。術後2週で有意な左室肥大が、術後4週で肺うっ血を生じ心不全が起こることを確認した。筋特異的ユビキチン連結酵素MAFbxが、術後1週、2週と時間依存的にその発現レベルが有意に増加していくことを確認した。MAFbx欠損マウスに圧負荷モデルを作成し、MAFbx欠損マウスでは圧負荷による左室肥大は有意に抑制された。MAFbxは圧負荷に伴う心肥大および心臓リモデリングを制御している可能性が示唆された。

Report

(3 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • Research Products

    (4 results)

All 2010 2009

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results)

  • [Journal Article] Altered Hepatic Gene Expression Profiles Associated with Myocardial Ischemia.2010

    • Author(s)
      Ohtsuji H, Honda M, Usui S, other 7
    • Journal Title

      Circulation Cardiovas Genet. 3

      Pages: 194-203

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] S1P3-mediated cardiac fibrosis in sphingosine kinase 1 transgenic mice involves reactive oxygen species.2010

    • Author(s)
      Takuwa N, Ohkura SI, Usui S, other 18
    • Journal Title

      Cardiovasc Res. 85

      Pages: 484-493

    • NAID

      120001939472

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Presentation] Muscle Atrophy F-box Inhibited Pressure Overload Induced Cardiac Hypertrophy through the Activation of NF_K-B Pathway2009

    • Author(s)
      Soiochiro Usui
    • Organizer
      日本循環器学会
    • Place of Presentation
      大阪
    • Year and Date
      2009-03-23
    • Related Report
      2008 Annual Research Report
  • [Presentation] Muscle Atrophy F-box Inhibited Pressure Overload Induced Cardiac Hypertrophy through the Activation of NFκ-B Pathway.2009

    • Author(s)
      Usui. S
    • Organizer
      第73回日本循環器学会
    • Place of Presentation
      大阪国際会議場(大阪)
    • Related Report
      2009 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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