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Regulation of lung stem cells through intracellular clearance by lipid phosphatase

Research Project

Project/Area Number 20K07273
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48020:Physiology-related
Research InstitutionKanazawa University

Principal Investigator

Yoshioka Kazuaki  金沢大学, 医学系, 准教授 (80333368)

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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsイノシトールリン脂質代謝酵素 / PI3キナーゼ / ミオチュブラリン関連タンパク質 / エンドリソソーム / オートファジー / 肺線維化 / Ⅱ型肺胞上皮細胞 / 肺胞 / 肺線維症 / 肺胞幹細胞 / ホスホイノシタイド / イノシトールリン脂質 / リソソーム / ノックアウトマウス / 細胞内小胞輸送 / ミオチュブラリン / 2型肺胞上皮細胞 / 脂質ホスファターゼ / ホスファチジルイノシトール / ミオチューブラリン関連タンパク質 / 肺胞上皮細胞
Outline of Research at the Start

申請者らはこれまでに、肺胞上皮細胞に高発現する細胞膜脂質ホスファターゼ・ミオチュブラリン関連タンパク質-4(MTMR4)が細胞内クリアランスを担うエンドリソソーム・オートファジー系の新しい調節分子であることを見出した。AECII細胞は、有害な病原体などのアラームシグナルを種々の受容体を介していち早く感知し、外部有害物質によって引き起された肺組織障害に対する防御・修復応答において中心的な役割をはたす組織幹細胞的な性格を有する細胞と考えられている。本研究では、MTMR4によるエンドリソソーム・オートファジー系調節の分子機構ならびにMTMR4調節系破綻による肺の線維化発症機構を明らかにする。

Outline of Final Research Achievements

We have previously demonstrated that Class II PI3Kα enzyme is essential for receptor endocytosis functions involving growth factors receptor signaling. Subsequently, we explored the Inositol 3'-phosphatase that works in conjunction with PI3K-C2α and identified Myotubularin-related protein-4 (MTMR4). In this study, we focused on the pathophysiological function of MTMR4 in AECII cells, specifically aiming to deepen our understanding of the role of MTMR4 in the control of the endolysosomal-autophagic cellular degradation system and its contribution to the development of pulmonary fibrosis. MTMR4 was shown to be a crucial factor in regulating endolysosome-autophagic processes in AECII cells, essential for both the embryonic and postnatal alveolar development and maintenance of homeostasis.

Academic Significance and Societal Importance of the Research Achievements

本研究成果により、MTMR4-KOマウスの肺形成異常は、エンドリソソーム・オートファジー系の機能破綻による肺胞上皮分化異常ならびに間葉系細胞過形成に起因する正常肺胞構築障害であると結論づけられた。MTMR4は、AECII細胞においてエンドリソソーム・オートファジー系調節を介して、発生期の肺胞構築および生後の肺胞構築の恒常性維持に必須な因子であることが示された。MTMR4が肺胞幹細胞であるAECII細胞の分化・増殖の制御に重要な役割を果たす事から、MTMR4によるエンドリソソーム・オートファジー系調節機構は、肺線維化の発症機構解明および新たな治療法開発において重要な知見と成り得る。

Report

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

    (14 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (5 results) (of which Invited: 1 results)

  • [Int'l Joint Research] University of Bristol(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Bristol(英国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Suppression of androgen receptor signaling induces prostate cancer migration via activation of the CCL20-CCR6 axi2023

    • Author(s)
      Kano H, Izumi K, Hiratsuka K, Toriumi R, Nakagawa R, Aoyama S, Kamijima T, Shimada T, Naito R, Kadomoto S, Iwamoto H, Yaegashi H, Kawaguchi S, Nohara T, Shigehara K, Kadono Y, Saito Y, Nakagawa-Goto K, Yoshioka K, Nakata H, Lin W-J, Mizokami A.
    • Journal Title

      Cancer Science

      Volume: 114 Issue: 4 Pages: 1479-1490

    • DOI

      10.1111/cas.15683

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Differences in collagen types in the semitendinosus, quadriceps, and patellar tendons: A report using samples from an 11-year-old patient2023

    • Author(s)
      Yushin Mizuno, Junsuke Nakase, Kazuaki Yoshioka, Takuya Sengoku, Rikuto Yoshimizu, Tomoyuki Kanayama, Yusuke Yanatori, Hiroyuki Tsuchiya
    • Journal Title

      Knee

      Volume: May 4 Pages: 339-346

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Adipose-derived stem cell sheets promote meniscus regeneration regardless of whether the defect involves the inner half or the whole width of the anterior half of the medial meniscus in a rabbit model.2022

    • Author(s)
      Asai K., Nakase J, Yoshioka K, Yoshimizu R, Kimura M, Tsuchiya H.
    • Journal Title

      Arthroscopy.

      Volume: in press Issue: 9 Pages: 2672-2683

    • DOI

      10.1016/j.arthro.2022.02.020

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Class II phosphatidylinositol 3-kinase-C2α is essential for Notch signaling by regulating the endocytosis of γ-secretase in endothelial cells2021

    • Author(s)
      Shimizu Shota、Yoshioka Kazuaki、Aki Sho、Takuwa Yoh
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 5199-5199

    • DOI

      10.1038/s41598-021-84548-4

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Class II phosphatidylinositol 3-kinase α and β isoforms are required for vascular smooth muscle Rho activation, contraction and blood pressure regulation in mice2020

    • Author(s)
      Islam Shahidul、Yoshioka Kazuaki、Aki Sho、Ishimaru Kazuhiro、Yamada Hiroki、Takuwa Noriko、Takuwa Yoh
    • Journal Title

      The Journal of Physiological Sciences

      Volume: 70 Issue: 1 Pages: 18-18

    • DOI

      10.1186/s12576-020-00745-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Everolimus-Eluting Biodegradable Abluminal Coating Stent versus Durable Conformal Coating Stent: Termination of the Inflammatory Response Associated with Neointimal Healing in a Porcine Coronary Model2020

    • Author(s)
      Mori Masayuki、Sakata Kenji、Yokawa Junichiro、Nakanishi Chiaki、Murai Kota、Okada Hirofumi、Shimojima Masaya、Yoshida Shohei、Yoshioka Kazuaki、Takuwa Yoh、Hayashi Kenshi、Yamagishi Masakazu、Kawashiri Masa-aki
    • Journal Title

      Journal of Interventional Cardiology

      Volume: 2020 Pages: 1-8

    • DOI

      10.1155/2020/1956015

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] TGFβ receptor endocytosis and Smad signaling require synaptojanin1?, PI3K-C2α?, and INPP4B?mediated phosphoinositide conversions2020

    • Author(s)
      Aki Sho、Yoshioka Kazuaki、Takuwa Noriko、Takuwa Yoh
    • Journal Title

      Molecular Biology of the Cell

      Volume: 31(5) Issue: 5 Pages: 360-372

    • DOI

      10.1091/mbc.e19-11-0662

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Single cell transcriptome analysis of adventitial vasa vasorum remodeling in human aortic dissection2023

    • Author(s)
      吉岡 和晃、飯野賢治、射場智大、松居 彩、内藤尚道
    • Organizer
      第100回日本生理学会(京都)
    • Related Report
      2022 Annual Research Report
  • [Presentation] クラス II-PI3 キナーゼによるエンドサイトーシス制御を介した血管平滑筋収縮調節機構2021

    • Author(s)
      吉岡和晃、Shahidul Islam、安藝 翔、石丸和宏、多久和 典子、多久和 陽
    • Organizer
      第63回 日本脂質生化学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 血管新生因子TGFb/Smadシグナリングを制御するホスホイノシタイドカスケード2021

    • Author(s)
      安藝 翔、吉岡 和晃、加藤 美樹、前田 啓介、中原 龍一、土田 里香、多久和 陽、大澤 毅
    • Organizer
      第80回 日本癌学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Class II phosphatidylinositol 3-kinase α and β isoforms are required for vascular smooth muscle Rho activation, contraction and blood pressure regulation in mice2021

    • Author(s)
      Shahidul Islam, Kazuaki Yoshioka, Sho Aki, Kazuhiro Ishimaru, Hiroki Yamada, Noriko Takuwa & Yoh Takuwa
    • Organizer
      2020年度 第98回日本生理学会(第11回 入澤宏・彩記念JPS優秀論文)
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] TGFβ receptor endocytosis and Smad signaling require synaptojanin1, PI3K-C2α, and INPP4B-mediated phophoinositide conversions2021

    • Author(s)
      Aki S, Yoshioka K, Takuwa N, Takuwa Y
    • Organizer
      2020年度 第98回日本生理学会
    • Related Report
      2020 Research-status Report

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

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