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In vivo imaging of DVT formation and organization to understand DVT pathogenesis

Research Project

Project/Area Number 19K08516
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionKobe Pharmaceutical University (2020-2021)
Kobe University (2019)

Principal Investigator

Hara Tetsuya  神戸薬科大学, 薬学部, 准教授 (70547504)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords血栓 / 深部静脈血栓
Outline of Research at the Start

静脈血栓(DVT)は「凝固因子、血管内皮、血流」などの因子がそれぞれ異なる部位、時間で複合的に働くことで形成される。それゆえ、単一細胞の培養系や、位置情報のない生化学的解析、死後の病理サンプルでは疾患理解は困難である。申請者はこれまで「生体イメージング」によって血栓の病態の可視化、解明に挑戦してきたが、最近、ヒトDVTに類似した新規のDVTイメージングモデルの開発に独自に成功した。この新規DVTモデルによって、複数の細胞(血小板や赤血球など)や分子(フィブリン、組織因子など)の動態を時間軸をもって、観察、解析し、DVTの形成から器質化に至るまでの病態を解明したい。

Outline of Final Research Achievements

DVT forms by Virchow's triad, which includes coagulation, endothelial cells, and blood flow. Therefore, it is difficult to understand using traditional cell culture, chemical, and pathological analyses. I have been trying to understand using bioimaging method. Recently, I established novel in vivo DVT imaging model. We newly visualized and clarified several new aspects of DVT formation and organization process in vivo.

Academic Significance and Societal Importance of the Research Achievements

時空間軸で病態がダイナミックに変化する、血栓症のような循環器疾患の病態は、位置情報のない生化学的な蛋白解析や、時間軸の失われた病理サンプルでは理解が難しい。そのような中で、研究代表者が独自に開発した生体血栓モデルは既存の血栓モデルより実臨床のDVTに近い血栓を、生きたまま顕微鏡レベルで観察可能であり、DVTの理解が革新的に進むことが期待される。
血栓溶解療法は経験的に新鮮血栓であれば治療効果が高く、反対に器質化が進めば治療効果が望めない。この器質化機序を解明し、血栓溶解の効果が高い状態を維持できれば、DVTの治療戦略を大きく変えることができる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (3 results)

All 2021 2020

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] In Vivo Imaging of Venous Thrombus and Pulmonary Embolism Using Novel Murine Venous Thromboembolism Model2020

    • Author(s)
      Okano Mitsumasa、Hara Tetsuya、Nishimori Makoto、Irino Yasuhiro、Satomi-Kobayashi Seimi、Shinohara Masakazu、Toh Ryuji、Jaffer Farouc A.、Ishida Tatsuro、Hirata Ken-ichi
    • Journal Title

      JACC: Basic to Translational Science

      Volume: 5 Issue: 4 Pages: 344-356

    • DOI

      10.1016/j.jacbts.2020.01.010

    • NAID

      120006952759

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] In Vivo Imaging of Venous Thrombus and Pulmonary Embolism Using Novel Murine Venous Thromboembolism Model2021

    • Author(s)
      Tetsuya Hara
    • Organizer
      国際血栓止血学会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel murine in vivo imaging model of deep venous thrombosis2021

    • Author(s)
      Tetsuya Hara
    • Organizer
      日本血栓止血学会
    • Related Report
      2021 Annual Research Report
    • Invited

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Published: 2019-04-18   Modified: 2023-01-30  

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