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Elucidation of anticoagulant and anti-inflammatory effects of each domain in Recombinant Human Soluble Thrombomodulin

Research Project

Project/Area Number 19K09251
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55030:Cardiovascular surgery-related
Research InstitutionTeikyo University

Principal Investigator

Ikeda Tsukasa  帝京大学, 医学部, 助手 (10768170)

Co-Investigator(Kenkyū-buntansha) 内山 雅照  帝京大学, 医学部, 講師 (60713295)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsトロンボモジュリン / 心臓移植 / 制御性T細胞 / 血管内皮 / 生着延長 / リコモジュリン / 心移植 / 冠動脈 / 血管壁 / 微小循環障害 / 慢性拒絶反応 / 抗凝固能 / 構成ドメイン
Outline of Research at the Start

・TMの損傷血管壁に対する作用機序の解明
・微小循環障害抑制による慢性拒絶反応の制御
・作用機序の解明による効果的な製剤化の開発と凝固線溶系異常疾患への適応拡大
上記の作用機序を解明することは、非特異的な免疫抑制剤の減量と慢性拒絶反応制御の解明にも繋がり、現代医療にとって望ましい結果をもたらす。当研究を今後も継続し、最終的に適応拡大と創薬開発のヒントを得られればと考えている。

Outline of Final Research Achievements

Untreated and D2-exposed CBA recipients acutely rejected C57BL/6 cardiac
allografts within 9 days. Administration of D3 resulted in modest prolongation of allograft survival, and administration of D1 significantly prolonged allograft survival. Histologic studies showed that myocardial damage of allografts from D1- and D3-exposed CBA recipients was controlled compared with that of untreated recipients. In particular, the CD4+CD25+Foxp3+ cell population in the splenocytes of D1-exposed CBA recipients was increased.

Academic Significance and Societal Importance of the Research Achievements

当検討によって、トロンボモジュリンを構成するD1が制御性T細胞の誘導や、IFN-gamma産生抑制能を持ち、微小循環障害抑制による慢性拒絶反応の制御に寄与する可能性があると考えられた。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (4 results)

All 2022 2021 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Effects of Each Domain in Recombinant Human Soluble Thrombomodulin on Prolongation of Murine Cardiac Allograft Survival2022

    • Author(s)
      Yasuto Yamamoto, Tsukasa Ikeda, Masateru Uchiyama, Kazuhito Iguchi, Tomohiro Imazuru, Tomoki Shimokawa
    • Journal Title

      Transplantation proceedings

      Volume: 54 Issue: 2 Pages: 487

    • DOI

      10.1016/j.transproceed.2021.12.024

    • URL

      https://pure.teikyo.jp/en/publications/f45b90b6-2056-40cc-b9c7-bb5738a59834

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Cardiac Graft Function by Echocardiography in Mice2022

    • Author(s)
      Kazuhito Iguchi, Yasuto Yamamoto, Masateru Uchiyama, Tsukasa Ikeda, Tomohiro Imazuru, Tomoki Shimokawa
    • Journal Title

      Transplantation proceedings

      Volume: 54 Issue: 2 Pages: 492

    • DOI

      10.1016/j.transproceed.2021.12.032

    • URL

      https://pure.teikyo.jp/en/publications/6f4f414d-360a-4c78-a488-2d68bb413ee6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mitral valve perforation due to coexisting severe aortic regurgitation2019

    • Author(s)
      Ikeda T, Iida M, Yokoyama N, Shimokawa T.
    • Journal Title

      Eur J Cardiothorac Surg.

      Volume: 56 Issue: 4 Pages: 815

    • DOI

      10.1093/ejcts/ezz109

    • URL

      https://pure.teikyo.jp/en/publications/50053343-6585-4161-b9f0-1c787583a6a2

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Effects of Each Domain of Recombinant Human Soluble Thrombomodulin on Prolongation of Cardiac Allograft Survival2021

    • Author(s)
      Yasuto Yamamoto, Tsukasa Ikeda, Masanori Niimi, Masateru Uchiyama
    • Organizer
      アジア移植学会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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