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Development of intestinal environment design for severe pathological conditions using metagenomic and metabolomic analysis

Research Project

Project/Area Number 20K17861
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 55060:Emergency medicine-related
Research InstitutionOsaka University

Principal Investigator

Muratsu Arisa  大阪大学, 医学部附属病院, 医員 (90737199)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords腸内細菌 / 代謝産物 / 敗血症 / メタゲノム / メタボローム / 腸内環境デザイン
Outline of Research at the Start

重症病態における腸内細菌とその代謝産物の特徴をメタゲノム及びメタボローム解析を用いた統合的・網羅的な解析により明らかにし、腸内細菌や代謝産物の変化に応じた腸管内の恒常性を保つ治療(腸内環境デザイン)が、病態の改善や転帰に影響するか確かめることを目的とする。本研究によって腸内環境デザインの有効性を示すことができれば、重症救急患者に対する新たな治療法として今後大きく発展する可能性がある。

Outline of Final Research Achievements

In severe emergency conditions such as sepsis, it has been shown that disruption of the intestinal microbiota leads to a systemic inflammatory response. However, an integrated and comprehensive analysis of intestinal bacteria and metabolites has not been performed. In this study, we used metagenomic and metabolomic analyses to elucidate the intestinal microbiota and metabolites in a mouse model of sepsis and to explore potential factors contributing to systemic inflammation.
Our study showed that Enterobacteriaceae increased in the acute phase after invasion, and Lachnospiraceae and Ruminococcaceae families increased in the subacute phase. Branched-chain amino acids and Choline increased, while short-chain fatty acids decreased.

Academic Significance and Societal Importance of the Research Achievements

侵襲後、腸内細菌叢と代謝産物は大きく変化していることが示された。今後増減する腸内細菌や代謝産物が病態へと与える影響を評価することで、重症救急病態に対する新たな治療法の開発のために役立つ可能性がある。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (2 results)

All 2020

All Presentation (2 results)

  • [Presentation] 敗血症における腸内細菌と便中代謝産物の評価―メタゲノムとメタボローム解析を用いて―2020

    • Author(s)
      村津有紗
    • Organizer
      日本救急医学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 敗血症マウスモデルにおける腸内細菌叢とメタボロミクスを用いた代謝産物の変動2020

    • Author(s)
      村津有紗
    • Organizer
      日本集中治療医学会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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