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Clearance mechanism of ADAMTS13

Research Project

Project/Area Number 16K08515
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General physiology
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Akiyama Masashi  国立研究開発法人国立循環器病研究センター, 研究所, 室長 (30298179)

Co-Investigator(Kenkyū-buntansha) 小亀 浩市  国立研究開発法人国立循環器病研究センター, 研究所, 部長 (40270730)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsADAMTS13 / クリアランス機構 / クリアランス受容体 / 蛋白質 / LRP1 / Ashwell-Morell受容体
Outline of Final Research Achievements

The plasma metalloprotease, ADAMTS13 specifically cleaves VWF and negatively regulate platelet thrombus formation. We identified human SIGLEC5 as a clearance receptor candidate. SIGLEC5 expressing HEK293 cells internalized full-length and C-terminal region-deficient ADAMTS13. ADAMTS13 bound extracellular region of SIGLEC5 in vitro. Hydrodynamic-expression human SIGLEC5 in mouse liver lowered plasma Adamts13 activity. These results suggests that SIGLEC5 is involved in the clearance of ADAMTS13.

Academic Significance and Societal Importance of the Research Achievements

遺伝子変異もしくは阻害抗体によるADAMTS13活性の著減は重篤な血栓性疾患である血栓性血小板減少性紫斑病(TTP)の病因である。また、ADAMTS13投与はVWFの切断を通じ脳卒中など様々な血栓性疾患モデルマウスにおいて病態を緩和する作用を持つことも明らかになっている。現在先天性TTP患者に組換えADAMTS13製剤を投与し治療する第三相試験が行われている。ADAMTS13のクリアランス機構の解明は投与した組換えADAMTS13の安定性などの改良にも役立つとともに、様々な血栓性疾患の病態改善にも役立つ可能性がある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] von Willebrand factor aggravates hepatic ischemia-reperfusion injury by promoting neutrophil recruitment in mice2018

    • Author(s)
      Urisono Y, Sakata A, Matsui H, Kasuda S, Ono S, Nishio K, Sho M, Okuchi K, Akiyama M, Miyata T, Nishimura S, Sugimoto M
    • Journal Title

      Thromb Haemost

      Volume: 118 Issue: 04 Pages: 700-708

    • DOI

      10.1055/s-0038-1636529

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Congenital coagulation factor X deficiency: Genetic analysis of five patients and functional characterization of mutant factor X proteins.2018

    • Author(s)
      Nagaya S, Akiyama M, Murakami M, Sekiya A, Asakura H, Morishita E.
    • Journal Title

      Haemophilia

      Volume: 24(5) Issue: 5 Pages: 774-785

    • DOI

      10.1111/hae.13606

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Protein S K196E mutation reduces its cofactor activity for APC but not for TFPI2018

    • Author(s)
      Keiko Maruyama, Masashi Akiyama, Toshiyuki Miyata, Koichi Kokame
    • Journal Title

      Research and Practice in Thrombosis and Haemostasis

      Volume: 2 Issue: 4 Pages: 751-756

    • DOI

      10.1002/rth2.12152

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Shear-induced unfolding and cleavage of VWF by ADAMTS132017

    • Author(s)
      秋山正志
    • Journal Title

      生化学

      Volume: 89 Issue: 3 Pages: 343-350

    • DOI

      10.14952/SEIKAGAKU.2017.890343

    • ISSN
      0037-1017
    • Year and Date
      2017-06-25
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] HITの発症を誘導する免役複合体の構造2016

    • Author(s)
      前田琢磨, 秋山正志
    • Journal Title

      日本血栓止血学会誌

      Volume: 27 Issue: 6 Pages: 678-682

    • DOI

      10.2491/jjsth.27.678

    • NAID

      130005250288

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Journal Club2016

    • Author(s)
      秋山正志、小亀浩市
    • Journal Title

      Japanese Journal of Thrombosis and Hemostasis

      Volume: 27 Issue: 3 Pages: 384-385

    • DOI

      10.2491/jjsth.27.384

    • NAID

      130005157429

    • ISSN
      0915-7441, 1880-8808
    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Asymptomatic dysprothrombinemia (Prothtombin Himi) with p.M380T and p.R431H shows severely reduced clotting activity, moderate antithrombin resistance and severe thrombomodulin binding defect.2016

    • Author(s)
      1)Eriko Morishita, Mao Takata, Fumina Taniguchi , Masashi Akiyama, Akiko Sekiya, Akira Takagi, Toshiyuki Miyata, and Tetsuhito Kojima
    • Organizer
      58th ASH Annual Meeting & Exposition
    • Place of Presentation
      San Diego, CA, USA
    • Year and Date
      2016-12-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Functional relevance of von Willebrand factor in mouse model of hepatic ischemia- reperfusion injury.2016

    • Author(s)
      2)Yasuyuki Urisono, Hideto Matsui, Shogo Kasuda, Shiro Ono, Kenji Nishio, Masashi Akiyama, Toshiyuki Miyata, Kazuo Okuchi and Mitsuhiko Sugimoto
    • Organizer
      58th ASH Annual Meeting & Exposition
    • Place of Presentation
      San Diego, CA, USA
    • Year and Date
      2016-12-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2021-01-27  

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