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Evaluation of the severity of sepsis by proteomic analysis

Research Project

Project/Area Number 16K11421
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Emergency medicine
Research InstitutionJuntendo University

Principal Investigator

Iba Toshiaki  順天堂大学, 医学部, 教授 (40193635)

Co-Investigator(Kenkyū-buntansha) 林 宣宏  東京工業大学, 生命理工学院, 准教授 (80267955)
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: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords敗血症 / プロテオミクス / 凝固因子 / 鉄代謝 / 補体 / プロテオーム解析 / 多臓器障害 / 凝固異常 / 二次元電気泳動 / 多臓器不全 / 血管内皮細胞 / グリコカリクス / シンデカン / ヒストン / アンチトロンビン / ペントラキシン3 / ヘパラン硫酸 / バイオマーカー / 重症度
Outline of Final Research Achievements

Sepsis is defined by "infection-induced inappropriate host-immune response that induces life-threatening organ dysfunction". The evaluation of "the degree of the insult" and "the degree of host response" have not been properly performed, and new approach has been required. In the present study, we newly performed an diagnostic approach that comprised of measuring the changes of 1) coagulation-related proteins 2) iron-metabolism-related proteins 3) complement-related proteins by using proteome analysis. Among three components, we further elucidated that the changes of coagulation-related proteins are related to the expression of extracellular vesicles.

Academic Significance and Societal Importance of the Research Achievements

プロテオミクス解析を用いた新たな研究手法により、敗血症の重症化は各種タンパク質の変動で評価することが可能であることが明らかになった。そして特に、凝固関連タンパク質、鉄代謝関連タンパク質、補体関連タンパク質の変化と重症化は強い関連がみられることが明らかにされた。よってこれらを総合的に評価することにより、従来にない重症化評価の手法を開発できる可能性が考えられた。されにこれらのタンパク質産生の調節や拮抗剤の開発が新たな治療手段の開発につながる可能性が考えられた。

Report

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

    (10 results)

All 2018 2017 2016

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] Role of extracellular vesicles in the development of sepsis-induced coagulopathy2018

    • Author(s)
      Iba Toshiaki、Ogura Hiroshi
    • Journal Title

      Journal of Intensive Care

      Volume: 6 Issue: 1 Pages: 68-79

    • DOI

      10.1186/s40560-018-0340-6

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Physiological Levels of Pentraxin 3 and Albumin Attenuate Vascular Endothelial Cell Damage Induced by Histone H3 In Vitro.2016

    • Author(s)
      Iba T, Hamakubo T, Nagaoka I, Sato K, Thachil J
    • Journal Title

      Microcirculation

      Volume: 23 Issue: 3 Pages: 240-247

    • DOI

      10.1111/micc.12269

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Glycocalyx Regulates the Intravascular Hemostasis2016

    • Author(s)
      Iba T.
    • Journal Title

      Juntendo Medical Journal

      Volume: 62 Issue: 4 Pages: 330-335

    • DOI

      10.14789/jmj.62.330

    • NAID

      130005433448

    • ISSN
      2187-9737, 2188-2126
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Present and future of anticoagulant therapy using antithrombin and thrombomodulin for sepsis‑associated disseminated intravascular coagulation: a perspective from Japan2016

    • Author(s)
      Iba T, Jecko T
    • Journal Title

      Int J Hematol

      Volume: 103 Issue: 3 Pages: 253-261

    • DOI

      10.1007/s12185-015-1904-z

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] A Hemostasis Perspective on How to Mitigate Sepsis Mortality2018

    • Author(s)
      Iba T
    • Organizer
      64th Annual Meeting of the International Society on Thrombosis and Haemostasis
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 今日の敗血症性DIC診療2017

    • Author(s)
      射場敏明
    • Organizer
      第44回日本集中治療医学会学術集会
    • Place of Presentation
      ロイトン札幌
    • Year and Date
      2017-03-09
    • Related Report
      2016 Research-status Report
  • [Presentation] 血清プロテオミクス法による敗血症進行メカニズムの解明と機械学習を用いた診断法の開発2017

    • Author(s)
      山口駿太、氏本慧、澤田好秀、三木隆弘、服部晋也、射場敏明、林宣宏
    • Organizer
      第22回日本血管病理研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 敗血症性DICの病態とマネージメント2016

    • Author(s)
      射場敏明
    • Organizer
      第44回日本救急医学会総会・学術集会
    • Place of Presentation
      新高輪プリンスホテル
    • Year and Date
      2016-11-17
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Circulating Histones and coagulation disorder2016

    • Author(s)
      Iba T.
    • Organizer
      The 8th Congress of the International Federation of Shock Societies
    • Place of Presentation
      Tokyo Dome Hotel
    • Year and Date
      2016-10-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Neutralizers of histones and DAMPS in DIC2016

    • Author(s)
      Iba T.
    • Organizer
      The International Society on Thrombosis and Hemostasis 62nd SSC
    • Place of Presentation
      Montpellier
    • Year and Date
      2016-05-25
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2020-03-30  

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