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Development of novel lung injury therapies based on the regulation of lung tissue stem cells

Research Project

Project/Area Number 20K08530
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionUniversity of Occupational and Environmental Health, Japan

Principal Investigator

Endo Motoyoshi  産業医科大学, 医学部, 教授 (40398243)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords肺損傷 / eR1 / 組織幹細胞 / basal stem cell / 組織修復 / 癌幹細胞 / 肺癌 / RUNX1
Outline of Research at the Start

肺組織の急速な破壊が進む肺損傷疾患では、肺組織の修復・再生を促進させることが重要である。組織修復と再生には組織幹細胞が重要であることが報告されているが、呼吸器における組織幹細胞に関しては未だ不明な点は多い。Runx1は造血幹細胞のマスター遺伝子であるが、近年Runx1の発現を活性化するエンハンサーRunx1+24mCNE:eR1が発見され、eR1の活性化が様々な組織の組織幹細胞のマーカーとなりうることが報告された。本研究では、肺組織におけるeR1活性化細胞が肺組織幹細胞である可能性について検討し、eR1活性化細胞の制御を応用した新規肺損傷治療法開発にむけた基盤研究を展開する。

Outline of Final Research Achievements

eR1 is an enhancer that regulates the expression of Runx1 and is known to be activated in various tissue stem cells. In this study, we analyzed the relationship between eR1 expressing cells in the lung and tissue stem cells. We found that eR1-positive cells in the lung are expressing CD44, OCT4, and SOX2. We also found that eR1-positive cells are dormant at the basement membrane periphery under normal conditions. However, eR1-positive cells proliferated and differentiated when lung injury was occurred. These results suggest that eR1-positive cells in the lung may be one of the lung tissue stem cells.

Academic Significance and Societal Importance of the Research Achievements

間質性肺炎の急性増悪期やALI/ARDSなどの肺損傷では、肺組織の急速な破壊が進んでおり、肺組織の修復・再生の促進はその治療において極めて重要である。また、組織修復には組織固有に存在する組織幹細胞の制御が重要であることが知られている。本研究では、Runx1の発現を制御するエンハンサーeR1を発現している細胞が肺組織幹細胞である可能性を見出した。eR1発現細胞の制御は新たな肺損傷治療法開発につながると考えられる。

Report

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

    (8 results)

All 2023 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (3 results)

  • [Journal Article] ANGPTL8 links inflammation and poor differentiation, which are characteristics of malignant renal cell carcinoma2023

    • Author(s)
      Takuo Matsukawa , Tomomitsu Doi , Kunie Obayashi , Kazuhiro Sumida , Naohiro Fujimoto , Motoyoshi Endo
    • Journal Title

      Cancer Science

      Volume: 114 Issue: 4 Pages: 1410-1422

    • DOI

      10.1111/cas.15700

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Plasma Angiopoietin-Like Protein 2 Levels and Mortality Risk Among Younger-Old Japanese People: A Population-Based Case?Cohort Study2022

    • Author(s)
      Zhao Wenjing、Morinaga Jun、Ukawa Shigekazu、Endo Motoyoshi、Yamada Hiroya、Kawamura Takashi、Wakai Kenji、Tsushita Kazuyo、Ando Masahiko、Suzuki Koji、Oike Yuichi、Tamakoshi Akiko
    • Journal Title

      The Journals of Gerontology: Series A

      Volume: - Issue: 6 Pages: 1150-1158

    • DOI

      10.1093/gerona/glac017

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Involvement of activator protein-1 family members in β-catenin and p300 association on the genome of PANC-1 cells2022

    • Author(s)
      Doi Tomomitsu、Hojo Hironori、Ohba Shinsuke、Obayashi Kunie、Endo Motoyoshi、Ishizaki Toshimasa、Katoh Akira、Kouji Hiroyuki
    • Journal Title

      Heliyon

      Volume: 8 Issue: 2 Pages: e08890-e08890

    • DOI

      10.1016/j.heliyon.2022.e08890

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Angiopoietin-like protein 2 decreases peritoneal metastasis of ovarian cancer cells by suppressing anoikis resistance.2021

    • Author(s)
      Takeshita Y, Motohara T, Kadomatsu T, Doi T, Obayashi K, Oike Y, Katabuchi H, Endo M.
    • Journal Title

      Biochem Bioph Res Commun

      Volume: 561 Pages: 26-32

    • DOI

      10.1016/j.bbrc.2021.05.008

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tumor cell-derived angiopoietin-like protein 2 establishes a preference for glycolytic metabolism in lung cancer cells.2020

    • Author(s)
      Osumi H, Horiguchi H, Kadomatsu T, Tashiro K, Morinaga J, Takahashi T, Ikeda K, Ito T, Suzuki M, Endo M, Oike Y
    • Journal Title

      Cancer Sci

      Volume: - Issue: 4 Pages: 1241-1253

    • DOI

      10.1111/cas.14337

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Angiopoietin-like protein-8(ANGPTL8)は、淡明細胞型腎癌の分化に関与する2022

    • Author(s)
      松川卓生、土井知光、大林邦衣、遠藤元誉
    • Organizer
      第45回日本分子生物学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Angiopoietin-like protein 8(ANGPTL8)は淡明細胞型腎癌の未分化状態の維持と腫瘍微小環境形成に関わる2022

    • Author(s)
      松川卓生、土井知光、大林邦衣、藤本直浩、遠藤元誉
    • Organizer
      第32回泌尿器科分子・細胞研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 肝細胞におけるCaspase4のストレス調整因子としての機能解析2022

    • Author(s)
      隅田和広, 長坂昌平, 千葉要祐, 松川卓生, 大林邦衣, 土井知光, 遠藤元誉
    • Organizer
      第16回日本臨床ストレス応答学会大会
    • Related Report
      2022 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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