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Elucidation of the pathophysiology of chronic inflammatory diseases and development of therapies focusing on inflammatory cell death

Research Project

Project/Area Number 17K19877
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Health science and related fields
Research InstitutionHokkaido University

Principal Investigator

Asano Mami  北海道大学, 保健科学研究院, 客員研究員 (00779390)

Co-Investigator(Kenkyū-buntansha) 小澤 岳昌  東京大学, 大学院理学系研究科(理学部), 教授 (40302806)
尾崎 倫孝  北海道大学, 保健科学研究院, 教授 (80256510)
Project Period (FY) 2017-06-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords細胞死 / 炎症 / 脂肪酸 / 炎症性サイトカイン / パイロトーシス / カスパーゼ / ガスダーミンD / 光プローブ / インターロイキン1β / ガスダーミンD / カスパーゼ1
Outline of Final Research Achievements

Recent investigations suggest inflammatory cell death release various signals to surrounding cells, and may control biological responses after cell death such as inflammation, immune response, fibrosis, repair, and regeneration.The inflammation cell death have been reported previously in immune cells, such as monocytes and macrophage cells, but rarely in parenchymal cells. We investigated whether various fatty acids were administered to mouse hepatocyte cell lines to produce and secrete inflammatory cytokines, and found that palmitic acid administration induced the production and secretion of inflammatory cytokines and subsequent cell death.

Academic Significance and Societal Importance of the Research Achievements

この結果は、パルミチン酸が肝傷害を誘導するだけでなく、炎症性サイトカインを積極的に分泌することで肝炎を惹起する可能性、さらには脂肪肝から非アルコール性脂肪肝炎の病態形成・進展へ関与する可能性を示唆している。今後、ステアリン酸などの飽和脂肪酸についても同様の検討を行い、特定の脂肪酸による肝炎発症・促進効果に関して検討する予定である。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (2 results)

All 2021 2019

All Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] パルミチン酸はマウス肝細胞株AML12において炎症性サイトカインを放出し、その後細胞死を誘導する2021

    • Author(s)
      浅野真未、芳賀早苗、森田直樹、尾崎倫孝
    • Organizer
      日本生化学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Palmitate induces release of pro-inflammatoty cytokines prior to cell death in mouse AML12 hepatocytes2019

    • Author(s)
      Mami Asano, Sanae Haga, Shiina Itashiki, Sae Kamada, Aya Mikami, Michitaka Ozaki
    • Organizer
      Liver, Biology, Diseases&Cancer 2019 Cold Spring Harbor Asia Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2017-07-21   Modified: 2023-01-30  

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