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Heme oxygenase/carbon monoxide-mediated intestinal modulation for the development of gas molecule drugs

Research Project

Project/Area Number 20K08292
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Tomohisa Takagi  京都府立医科大学, 医学(系)研究科(研究院), 准教授 (70405257)

Co-Investigator(Kenkyū-buntansha) 内藤 裕二  京都府立医科大学, 医学(系)研究科(研究院), 教授 (00305575)
内山 和彦  京都府立医科大学, 医学(系)研究科(研究院), 講師 (50298428)
堅田 和弘  京都府立医科大学, 医学(系)研究科(研究院), 准教授 (60593910)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsHeme Oxygenase-1 / 一酸化炭素 / Bach1 / 潰瘍性大腸炎 / Paraprevotella / Heme oxygenase-1 / 腸内細菌叢 / 皮膚潰瘍 / 大腸潰瘍 / 一酸化炭 / マクロファージ / ヘムオキシゲナーゼ / 腸内環境 / 炎症性腸疾患
Outline of Research at the Start

これまでに我々は、先行研究結果である外因性一酸化炭素(Carbon monoxide: CO)による腸炎抑制効果の知見を元に、COの毒性を克服した新規ガス状分子治療薬の開発を達成し、局所遊離型CO製剤により腸管炎症病態の抑制、粘膜治癒の促進が得られることを明らかにしてきた。しかしながら、腸管炎症病態時に腸管粘膜内に発現亢進するHO-1や外因性COによる腸内細菌叢を含めた腸内環境調整作用についての詳細は不明のままである。そこで、本研究では、COをガス状治療分子とした臨床治療応用を支える基盤研究として、COを介した腸内環境調整作用に着目し、その分子機構の詳細を検討する。

Outline of Final Research Achievements

Based on the fact that dextran sulphate (DSS)-induced enteritis is suppressed in Bach1-deficient mice (mice with high expression of Heme Oxygenase-1 (HO-1)) compared to wild-type mice, it has been shown that DSS-induced enteritis was suppressed in wild-type mice transplanted with the intestinal environment of Bach1-deficient mice (HO-1-high expressing mice). Furthermore, the administration of Paraprevotella clara, which was identified as one of the intestinal bacteria showing predominance in the HO-1 high-expressing environment, suppressed intestinal inflammation, and was also found to be a significantly reduced species in patients with ulcerative colitis. It was considered to be a promising candidate bacterium as an anti-inflammatory bacterium.

Academic Significance and Societal Importance of the Research Achievements

Bach1欠損マウス(Heme Oxygenase-1(HO-1)高発現マウス)を用いて、一酸化炭素(Carbon monoxide: CO)高産生環境下での腸炎抑制効果を明らかにするとともに、この腸内環境形成に関与する腸内細菌叢としてParaprevotella claraを同定したことは本領域における重要な知見となった。さらに、Paraprevotella claraは日本人潰瘍性大腸炎患者で有意に減少している菌種であることを確認しており、抗炎症性細菌として有望な候補菌であると考えられ、新たな治療手段として期待される研究成果と考えられた。

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

    (7 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Topical application of sustained released-carbon monoxide promotes cutaneous wound healing in diabetic mice.2022

    • Author(s)
      Takagi T, Okayama T, Asai J, Mizushima K, Hirai Y, Uchiyama K, Ishikawa T, Naito Y, Itoh Y.
    • Journal Title

      Biochem Pharmacol.

      Volume: 199 Pages: 115016-115016

    • DOI

      10.1016/j.bcp.2022.115016

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role and Potential Mechanism of Heme Oxygenase-1 in Intestinal Ischemia-Reperfusion Injury.2022

    • Author(s)
      Katada K, Takagi T, Iida T, Ueda T, Mizushima K, Fukui A, Okayama T, Kamada K, Uchiyama K, Ishikawa T, Naito Y, Itoh Y.
    • Journal Title

      Antioxidants.

      Volume: 11 Issue: 3 Pages: 559-559

    • DOI

      10.3390/antiox11030559

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lycopene intake induces colonic regulatory T cells in mice and suppresses food allergy symptoms.2022

    • Author(s)
      Ushiroda C, Takagi T, Fuke N, Mizushima K, Hirai Y, Higashimura Y, Harusato A, Kamada K, Uchiyama K, Ishikawa T, Aizawa K, Suganuma H, Itoh Y, Naito Y.
    • Journal Title

      Pediatr Allergy Immunol.

      Volume: 33 Issue: 1

    • DOI

      10.1111/pai.13691

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rectal administration of carbon monoxide inhibits the development of intestinal inflammation and promotes intestinal wound healing via the activation of the Rho-kinase pathway in rats.2021

    • Author(s)
      Takagi T, Naito Y, Higashimura Y, Uchiyama K, Okayama T, Mizushima K, Katada K, Kamada K, Ishikawa T, Itoh Y.
    • Journal Title

      Nitric Oxide.

      Volume: 107 Pages: 19-30

    • DOI

      10.1016/j.niox.2020.12.006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] The role of heme oxygenase-1 in intestinal ischemia/reperfusion injury in mice2023

    • Author(s)
      Tomohisa Takagi
    • Organizer
      12th World Congress for Microcirculation
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新規治療分子としてのCOの可能性~微小循環研究の知見から~.2022

    • Author(s)
      185髙木智久、内山和彦、堅田和弘、内藤裕二.
    • Organizer
      第47回日本微小循環学会総会. シンポジウム1「歯科、消化器、微小循環研究の新展開」
    • Related Report
      2021 Research-status Report
  • [Presentation] 腸管炎症病態における抗酸化酵素Heme oxygenase-1の役割とその生成物Carbon monoxideの新規治療分子としての可能性2020

    • Author(s)
      髙木智久、内山和彦、鎌田和浩、内藤裕二
    • Organizer
      第20回日本抗加齢医学会総会
    • Related Report
      2020 Research-status Report

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

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