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2010 Fiscal Year Annual Research Report

皮下脂肪細胞由来幹細胞を用いた新規動脈硬化治療法の開発

Research Project

Project/Area Number 22590822
Research InstitutionThe University of Tokyo

Principal Investigator

平田 恭信  東京大学, 医学部附属病院, 特任准教授 (70167609)

Keywords移植・再生医療 / 遺伝子 / 細胞・組織 / 循環器・高血圧 / 生理活性
Research Abstract

【目的】皮下脂肪中に多く含まれている脂肪細胞由来肝細胞(Adipose-derived stem cells : ASC)は様々な細胞系統に分化することが知られている。本研究ではWistar ratから採取したASCを用い、in vitroにおいて血管内皮細胞(endothelial cell ; EC)に分化するかを検討した。また同時にratの大腿動脈血管傷害モデルにおいてACSを投与し、血管平滑筋細胞増殖への影響を検討した。
【方法・結果】ASCはCD29およびCD90を発現したがCD34は発現せず、これはASCが骨髄細胞由来間葉幹細胞に類似していることを示唆した。ASCを内皮増殖培養液(endothelial growth medium ; EGM)に培養しECに分化誘導させると、ASCはFlt-1を発現したが、Flk-1および成熟したECのマーカーであるCD31,VE-cadherinは発現しなかった。またASCはEGMで培養するとangiopietin-1を産生し、NO産生も確認された。Chemotaxis assayにおいてASCはECのmigrationを促した。EGM培養ASCを血管傷害した大腿動脈の血管腔内に投与したところ、内膜増殖を有意に抑制した。このときASCが直接内皮細胞に組み込まれていないため、EGM培養ASCを血管外膜側から投与したが、内腔側から投与したときと同様に内膜増殖を有意に抑制しECの修復が促進されていた。
【結論】これらの結果、ASCは成熟したECに分化する可能性は少ないが、傍分泌作用により内皮修復を促進した。EGM培養ASCによる内膜増殖抑制作用は、ESC自体が内皮に分化することによる内皮再生ではなく、傍分泌的作用によりECのmigrationを促進し、内皮を修復し内膜増殖を抑制すると考えられた。

  • Research Products

    (20 results)

All 2011 2010

All Journal Article (17 results) (of which Peer Reviewed: 17 results) Presentation (2 results) Book (1 results)

  • [Journal Article] The effects of pharmacological plasminogen activator inhibitor-1 inhibition in acute and chronic rejection in murine cardiac allografts2011

    • Author(s)
      Ogawa M
    • Journal Title

      Transplantation

      Volume: 91 Pages: 21-26

    • Peer Reviewed
  • [Journal Article] Significance of B-type natriuretic peptide measurement in patients with chronic kidney disease2010

    • Author(s)
      Hirata Y
    • Journal Title

      Circ J

      Volume: 74 Pages: 632-633

    • Peer Reviewed
  • [Journal Article] Phosphodiesterase-5 inhibitor vardenafil enhances angiogenesis through a protein kinase G-dependent hypoxia-inducible factor-1/vascular endothelial growth factor pathway2010

    • Author(s)
      Sahara M
    • Journal Title

      Arterioscler Thromb Vasc Biol

      Volume: 30 Pages: 1315-1324

    • Peer Reviewed
  • [Journal Article] The ATP-binding cassette transporter BCRP1/ABCG2 plays a pivotal role in cardiac repair after myocardial infarction via modulation of microvascular endothelial cell survival and function2010

    • Author(s)
      Higashikuni Y
    • Journal Title

      Arterioscler Thromb Vasc Biol

      Volume: 30 Pages: 2128-2135

    • Peer Reviewed
  • [Journal Article] Ultrasound-microbubble mediated intercellular adhesion molecule-1 small interfering ribonucleic acid transfection attenuates neointimal formation after arterial injury in mice2010

    • Author(s)
      Suzuki J
    • Journal Title

      J Am Coll Cardiol

      Volume: 55 Pages: 904-913

    • Peer Reviewed
  • [Journal Article] A critical role of sympathetic nerve regulation for the treatment of impaired daily rhythm in hypertensive Dahl rats2010

    • Author(s)
      Suzuki J
    • Journal Title

      Hypertens Res

      Volume: 33 Pages: 1060-1065

    • Peer Reviewed
  • [Journal Article] Early treatment with clarithromycin attenuates rat autoimmune myocarditis via inhibition of matrix metalloproteinase activity2010

    • Author(s)
      Hishikari K
    • Journal Title

      Heart

      Volume: 96 Pages: 523-527

    • Peer Reviewed
  • [Journal Article] Clarithromycin attenuates myocardial ischemia reperfusion injury2010

    • Author(s)
      Nakajima T
    • Journal Title

      Expert Opin Ther Tar

      Volume: 14 Pages: 881-893

    • Peer Reviewed
  • [Journal Article] Plasma cystatin C concentration reflects the severity of coronary artery disease in patients without chronic kidney disease2010

    • Author(s)
      Kiyosue A
    • Journal Title

      Circ J

      Volume: 74 Pages: 2441-2447

    • Peer Reviewed
  • [Journal Article] Imatinib mesylate has the potential to exert its efficacy by down-regulating the plasma concentration of platelet-derived growth factor in patients with pulmonary arterial hypertension2010

    • Author(s)
      Hatano M
    • Journal Title

      Int Heart J

      Volume: 51 Pages: 272-276

    • Peer Reviewed
  • [Journal Article] Pentraxin3 and high-sensitive C-reactive protein are independent inflammatory markers released during high-intensity exercise2010

    • Author(s)
      Nakajima T
    • Journal Title

      Eur J Appl Physiol

      Volume: 110 Pages: 905-913

    • Peer Reviewed
  • [Journal Article] Impact of primitive cells in intracoronary thrombi on lesion prognosis : temporal analysis of cellular constituents of thrombotic material obtained from patients with acute coronary syndrome2010

    • Author(s)
      Iwata H
    • Journal Title

      Heart M

      Volume: 96 Pages: 748-755

    • Peer Reviewed
  • [Journal Article] Sensitive detection of acrolein in serum using time-resolved luminescence2010

    • Author(s)
      Togashi M
    • Journal Title

      Org Lett

      Volume: 12 Pages: 1704-1707

    • Peer Reviewed
  • [Journal Article] Relationship between renal dysfunction and severity of coronary artery disease in Japanese patients2010

    • Author(s)
      Kiyosue A
    • Journal Title

      Circ J

      Volume: 74 Pages: 786-791

    • Peer Reviewed
  • [Journal Article] Adipose tissue-derived stem cells inhibit neointimal formation in a paracrine fashion in rat femoral artery2010

    • Author(s)
      Takahashi M
    • Journal Title

      Am J Physiol Heart Circ Physiol

      Volume: 298 Pages: H415-H423

    • Peer Reviewed
  • [Journal Article] Age and preoperative total bilirubin level can stratify prognosis after extracorporeal pulsatile left ventricular assist device implantation2010

    • Author(s)
      Shiga T
    • Journal Title

      Circ J

      Volume: 75 Pages: 121-128

    • Peer Reviewed
  • [Journal Article] Hypoxia-sensitive fluorescent probes for in vivo real-time fluorescence imaging of acute ischemia2010

    • Author(s)
      Kiyose K
    • Journal Title

      J Am Chem Soc

      Volume: 132 Pages: 15846-15848

    • Peer Reviewed
  • [Presentation] 配合薬時代の薬物療法の進め方-ARB/利尿薬合剤の有用性2010

    • Author(s)
      平田恭信
    • Organizer
      第33回日本高血圧学会
    • Place of Presentation
      福岡市
    • Year and Date
      2010-10-16
  • [Presentation] Epithelial-Mesenchymal Transitionの抑制機序-AMPキナーゼを介した機序に関する検討2010

    • Author(s)
      長田太助
    • Organizer
      第58回日本心臓病学会
    • Place of Presentation
      東京
    • Year and Date
      2010-09-17
  • [Book] 循環器病学-基礎と臨床-慢性腎臓病と心血管疾患2010

    • Author(s)
      平田恭信
    • Total Pages
      1522
    • Publisher
      西村書店

URL: 

Published: 2012-07-19  

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