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Molecular mechanism of H2S donor on liver damage in an animal model of sepsis.

Research Project

Project/Area Number 19K10680
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58040:Forensics medicine-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Unuma Kana  東京医科歯科大学, 大学院医歯学総合研究科, 准教授(キャリアアップ) (30586425)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords敗血症 / 硫化水素 / リポポリサッカリド / 敗血症性肝障害 / 急性肝障害 / ペルオキシレドキシン / Sepsis / Hepatocytes / Inflammation / GYY4137 / hepatocytes / inflammation / sepsis
Outline of Research at the Start

ごく最近、敗血症病態モデルにおいて、低濃度硫化水素投与による死亡率低下や炎症性サイトカイン抑制などが報告され、敗血症に対する硫化水素の保護作用が報告されてきているが、敗血症と硫化水素の相互関係を詳細に観察した報告はこれまでない。本研究では、法医学的に重要な敗血症モデルを用いて、生体内ガス状シグナル分子として注目され始めた硫化水素の関与を検証し、そのメカニズムの詳細や、他の生体内シグナルガス分子の相互作用の新規経路の検索について明らかにすることを目指している。

Outline of Final Research Achievements

Hydrogen sulfide (H2S) has anti-inflammatory and anti-oxidant effects, and is known to have organ-protective effects in various inflammatory diseases. The purpose of this study is to demonstrate that hydrogen sulfide has a protective effect against acute liver damage caused by lipopolysaccharide (LPS) -induced sepsis. We revealed that the increase in cytokines in the septic group was alleviated by low concentrations of hydrogen sulfide. Furthermore, the gene expression level of peroxiredoxin 4 (Prx4) was increased in the septic group, and this increase tended to be suppressed by low concentrations of hydrogen sulfide. These results indicate that administration of hydrogen sulfide may help alleviate the pathological condition of sepsis.

Academic Significance and Societal Importance of the Research Achievements

PRX4は細胞内では小胞体に多く存在する分泌型のタンパク質である。本研究の結果から、PRX4は敗血症病態を反映する可能性が示唆され、敗血症早期診断の有用なマーカーとなり得る可能性を明らかにした。また、敗血症病態への早期硫化水素投与により敗血症病態緩和に働く可能性が示された。これらの結果は、致死率の高い敗血症の早期診断、治療応用につながる可能性があり、学術的意義があるものと考える。

Report

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

    (15 results)

All 2021 2020 2019 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] Oxcarbazepine induces mitotic catastrophe and apoptosis in NRK-52E proximal tubular cells2021

    • Author(s)
      Ota Momoka、Funakoshi Takeshi、Aki Toshihiko、Unuma Kana、Uemura Koichi
    • Journal Title

      Toxicology Letters

      Volume: 350 Pages: 240-248

    • DOI

      10.1016/j.toxlet.2021.07.018

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Altered cardiac mitochondrial dynamics and biogenesis in rat after short-term cocaine administration2021

    • Author(s)
      Wen Shuheng、Unuma Kana、Funakoshi Takeshi、Aki Toshihiko、Uemura Koichi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 24129-24129

    • DOI

      10.1038/s41598-021-03631-y

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fatal intracranial hemorrhage due to infantile acute lymphoblastic leukemia mimicking abusive head trauma2021

    • Author(s)
      Unuma Kana、Makino Yohsuke、Yamamoto Kouhei、Hattori Shinya、Arai Nobutaka、Sakai Kentaro、Kitagawa Masanobu、Uemura Koichi、Kanegane Hirokazu
    • Journal Title

      Journal of Forensic Sciences

      Volume: 66 Issue: 6 Pages: 2504-2510

    • DOI

      10.1111/1556-4029.14815

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inappropriate diet and fatal malnutrition in a 10-year-old child fed only infant formula throughout life: Novel pathological diagnostic criterion for starvation via lipophagy2021

    • Author(s)
      Yamada Atsushi、Unuma Kana、Arai Nobutaka、Kitamura Osamu、Uemura Koichi
    • Journal Title

      Forensic Science International

      Volume: 325 Pages: 110896-110896

    • DOI

      10.1016/j.forsciint.2021.110896

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sustained splenic contraction after daily cocaine administration in rats2021

    • Author(s)
      Nomura Moeka、Unuma Kana、Aki Toshihiko、Uemura Koichi
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 6 Pages: e0252853-e0252853

    • DOI

      10.1371/journal.pone.0252853

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diagnosis by forensic autopsy of cannula malposition resulting in fatal tension pneumothorax after attempted percutaneous tracheostomy: A short communication2021

    • Author(s)
      Wen Shuheng、Unuma Kana、Watanabe Ryo、Uemura Koichi
    • Journal Title

      Journal of Forensic and Legal Medicine

      Volume: 81 Pages: 102177-102177

    • DOI

      10.1016/j.jflm.2021.102177

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fatal anaphylaxis due to alpha-gal syndrome after initial cetuximab administration: The first forensic case report2021

    • Author(s)
      Wen Shuheng、Unuma Kana、Chinuki Yuko、Hikino Hajime、Uemura Koichi
    • Journal Title

      Legal Medicine

      Volume: 51 Pages: 101878-101878

    • DOI

      10.1016/j.legalmed.2021.101878

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CT imaging of extraglottic airway device?pictorial review2021

    • Author(s)
      Norii Tatsuya、Makino Yohsuke、Unuma Kana、Adolphi Natalie L.、Albright Danielle、Sklar David P.、Crandall Cameron、Braude Darren
    • Journal Title

      Emergency Radiology

      Volume: 28(3) Issue: 3 Pages: 665-673

    • DOI

      10.1007/s10140-021-01909-2

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogen sulfide donor NaHS causes bronchitis with enhanced respiratory secretion in rats2019

    • Author(s)
      Unuma Kana、Aki Toshihiko、Yamashita Ayaka、Yoshikawa Ayaka、Uemura Koichi
    • Journal Title

      The Journal of Toxicological Sciences

      Volume: 44 Issue: 2 Pages: 107-112

    • DOI

      10.2131/jts.44.107

    • NAID

      130007590450

    • ISSN
      0388-1350, 1880-3989
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Increased circulating peroxiredoxin-4 in sepsis model rats involves secretion from hepatocytes and is mitigated by GYY41372019

    • Author(s)
      Unuma Kana、Yoshikawa Ayaka、Aki Toshihiko、Uemura Koichi
    • Journal Title

      Journal of Toxicologic Pathology

      Volume: 32 Issue: 4 Pages: 305-310

    • DOI

      10.1293/tox.2019-0030

    • NAID

      130007731846

    • ISSN
      0914-9198, 1881-915X
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] The Evaluation of the Routine Use of Postmortem Computed Tomography (PMCT) In a High-Volume United States Medical Examiner’s Office2021

    • Author(s)
      Makino Y, Unuma K, Adolphi N, Nolte K.B.
    • Organizer
      The Academy’s 73rdAnnual Scientific Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 敗血症性肝障害に対する硫化水素の影響2020

    • Author(s)
      鵜沼香奈、秋利彦、吉川綾香、上村公一
    • Organizer
      第103回法医学会全国集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 敗血症性肝障害に対する硫化水素の影響2019

    • Author(s)
      鵜沼香奈、秋利彦、吉川綾香、上村公一
    • Organizer
      第103回法医学会全国集会
    • Related Report
      2019 Research-status Report
  • [Remarks] 東京医科歯科大学法医学分野研究

    • URL

      https://www.tmd.ac.jp/med/legm/houi_kenkyuu.html

    • Related Report
      2020 Research-status Report
  • [Remarks] 東京医科歯科大学 法医学分野 研究業績

    • URL

      http://www.tmd.ac.jp/med/legm/houi_gyouseki.html

    • Related Report
      2019 Research-status Report

URL: 

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

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