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Elucidating signaling mechanisms of myocardial cell hypertrophy and differentiation and their translational research

Research Project

Project/Area Number 19390219
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Circulatory organs internal medicine
Research InstitutionDepartment of Clinical Research, National Hospital Organization Kyoto Medical Center

Principal Investigator

HASEGAWA Koji  Department of Clinical Research, National Hospital Organization Kyoto Medical Center, 展開医療研究部, 部長 (50283594)

Co-Investigator(Kenkyū-buntansha) ONO Kou  京都大学, 大学院医学研究科循環器内科, 助教 (00359275)
森崎 隆幸  国立循環器病センター研究所, バイオサイエンス部, 部長 (30174410)
米田 正始  京都大学, 医学研究科, 教授 (20303810)
平家 俊男  京都大学, 医学研究科, 准教 (90190173)
Co-Investigator(Renkei-kenkyūsha) MORISAKI Takayuki  国立循環器病センター, バイオサイエンス部, 部長 (30174410)
KOMEDA Msashi  名古屋ハートセンター, 副院長 (20303810)
HEIKE Toshio  京都大学, 大学院・医学研究科小児科, 准教授 (90190173)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2008: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2007: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Keywords心不全 / 再生医療 / 心筋細胞 / 転写因子 / p300 / 分化 / iPS細胞 / 肥大 / トランスレーショナルリサーチ / 循環器・高血圧 / 再生医学
Research Abstract

心不全のより根本的治療を確立するためには、心筋細胞情報伝達の最終到達点である核内の共通経路を標的とした治療法を確立する必要がある。我々は内因性ヒストンアセチル化酵素(HAT)活性を有するp300とGATA帳写因子群の窃力(p3O0/GATA経路)が心不全発症における遺伝子発現調節に極めて重要であることを示した(Mol Cell Biol 2003; 23: 3593-606、Circulation 2006: 113: 679-90)。本研究においては、p300によるGATA4のアセチル化部位を同定し(J Biol Chem. 2008;283:9828-35)し、またp300の特異的アセチル化阻害作用を持つクルクミンが心不全の進行を抑制することを高血圧性心疾患ならびに心筋梗塞後の2つの慢性心不全ラットモデルにおいて証明した(J Clin Invest 2008;118:868-878)。
一方、心筋細胞の脱落が激しい末期心不全の根本的な治療には心筋再生療法が必須である。我々は、多分化能と無限増殖能を持つ胚性幹(ES)細胞において、ヒストン脱アセチル化酵素阻害剤であるトリコスタチンA(TSA)による刺激が、ヒストンや転写因子GATA4をアセチル化し、心筋分化効率を著名に上昇させることを見出した(J Biol Chcm 2005; 280: 19682-8)。本研究においては、マウス胚性幹(ES)細胞においてCyclin dependent kinase (CDK) 9が転写調節因子GATA4と結合し、その分化に関与していること(2007年11月, American Heart Association にて発表)、ES細胞の分化過程で発現が上昇するmiRNA-1がCDK9の翻訳抑制を通じて心筋分化を負に制御しているという新たな知見を得た(Circ J in press)。ES細胞と同様の多分化能と無限増殖能を持つ人工多能性幹(iPS)細胞において心筋分化システムを確立し、iPS細胞の株間には大きな分化効率の差異が存在すること、心筋分化効率が極めて低いiPS細胞株でもTSAにより、著明に心筋分化が亢進することを見川した(2008年Rcgenerative Medicine & Stom Collで発表)

Report

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

    (19 results)

All 2008 2007 Other

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (4 results) Book (2 results) Remarks (2 results)

  • [Journal Article] The dietary compound curcumin inhibits p300 histone acetyltransferase activity and prevents heart failure in rats2008

    • Author(s)
      Morimoto T, Sunagawa Y, Kawamura T, Takaya T, Wada H, Nagasawa A, Komeda M, Fujita M, Shimatsu A, Kita T, Hascpawa K
    • Journal Title

      J Clin Invest 118

      Pages: 868-878

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Identification of p300-targeted acetylated residues in GATA4 during hypertrophic responses in cardiac myocytes2008

    • Author(s)
      Takaya T, Kawamura T, Morimoto T, Ono K, Kita T, Shimatsu A, Hasegawa K
    • Journal Title

      J Biol Chem 283

      Pages: 9828-9835

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Oxidative stress induces GLUT4 translocation by activation of PI3-K/Akt and dual AMPK kinase in cardiac myocytes2008

    • Author(s)
      Horie T, Ono K. Nagao K, Nishi H, Kinoshita M, Kawamura T, Wada H, Shimatsu A, Kita T, Hasegawa K
    • Journal Title

      J Cell Physiol. 215

      Pages: 733-742

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] TG-interacting factor is required for the differentiation of preadipocytes2008

    • Author(s)
      Horie T, Ono K, Kinoshita M, Nishi H, Nagao K, Kawamura T, Abe Y, Wada H, Shimatsu A, Kita T, Hasegawa K.
    • Journal Title

      J Lip Res. 6

      Pages: 1224-1234

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Oxidative stress induces GLUT4 translocation by activation of PI3-K/Akt and dual AMPK kinase in cardiac myocytes2008

    • Author(s)
      Horie T
    • Journal Title

      J Cell Physiol 215

      Pages: 733-742

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of p300-targeted acetylated residues in GATA4 during hypertrophic responses in cardiac myocytes2008

    • Author(s)
      Takaya T
    • Journal Title

      J Biol Chem 283

      Pages: 9828-9835

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] TG-interacting factor is required for the differentiation of preadipocytes2008

    • Author(s)
      Horie T
    • Journal Title

      J Lip Res 6

      Pages: 1224-1234

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The dietary compound curcumin inhibits p300 histone acetyltransferase activity and prevents heart failure in rats.2008

    • Author(s)
      Morimoto T, Hasegawa K., etc.
    • Journal Title

      J Clin Invest 118

      Pages: 868-878

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of p300-targeted acetylated residues in GATA4 during hypertrophic responses in cardiac myocytes.2008

    • Author(s)
      Takaya T, Hasegawa K., etc.
    • Journal Title

      J Biol Chem 283

      Pages: 9828-9835

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Trichostatin A induces myocardial differentiation of monkey ES cells2007

    • Author(s)
      Hosseinkhani M, Hasegawa K, Ono K, Kawamura T, Takaya T, Morimoto T, Wada H, Shimatsu A, Prat SG, Suemori H, Nakatsuji N, Kita T
    • Journal Title

      Biochem Biophys Res Commun. 356

      Pages: 386-391

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Trichostatin A induces myocardial differentiation of monkey ES cells.2007

    • Author(s)
      Hosseinkhani M, Hasegawa K., etc.
    • Journal Title

      Biochem Biophys Res Commun. 356

      Pages: 386-391

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Signaling Pathways That Mediate Differentiation of ES and iPS Cells into Cardiomyocytes2008

    • Author(s)
      長谷川浩二
    • Organizer
      Annual World Congress of Regenerative Medicine & Stem Cell
    • Place of Presentation
      中国
    • Year and Date
      2008-12-04
    • Related Report
      2008 Final Research Report
  • [Presentation] Signaling Pathways That Mediate Differentiation of ES and iPS Cells into Cardiomyocytes2008

    • Author(s)
      長谷川浩二
    • Organizer
      Annual World Congress of Regenerative Medicine & Stem Cell
    • Place of Presentation
      中国 Guangzhou
    • Year and Date
      2008-12-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] Roles of muscle-specific microRNAs during differentiation of mouse embryonic stem cells into cardiac myocytes2007

    • Author(s)
      Takaya T, Hasegawa K. etc.
    • Organizer
      American Heart Association Annual Scientific Sessions 2007
    • Place of Presentation
      Orlando, Florida
    • Related Report
      2008 Final Research Report
  • [Presentation] Roles of muscle-specific microRNAs during differentiation of mouse embryonic stem cells into cardiac myocytes.2007

    • Author(s)
      Takaya T, Hasegawa K., etc.
    • Organizer
      American Heart Association Annual Scientific Sessions 2007
    • Place of Presentation
      Orlando, Florida
    • Related Report
      2007 Annual Research Report
  • [Book] 細胞工学Vol.26 転写因子のアセチル化と心臓リモデリング2007

    • Author(s)
      森本達也, 長谷川浩二
    • Publisher
      秀潤社
    • Related Report
      2008 Final Research Report
  • [Book] 細胞工学 Vol.262007

    • Author(s)
      森本 達也、長谷川 浩二
    • Publisher
      秀潤社
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.hosp.go.jp/kyotolan/clinical/tenkai.html

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.hosp.go.jp/~kyotolan/clinical/tenkai.html

    • Related Report
      2007 Annual Research Report

URL: 

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

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