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Reconstructive analysis of molecular regulation in epithelial stem cell and its niche in the lung

Research Project

Project/Area Number 17H04185
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Respiratory organ internal medicine
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Morimoto Mitsuru  国立研究開発法人理化学研究所, 生命機能科学研究センター, チームリーダー (70544344)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2017: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Keywords気管支 / 気道 / 幹細胞 / ニッチ / 神経内分泌細胞 / 呼吸器 / ES/iPS細胞 / 小細胞肺癌 / 幹細胞ニッチ / iPS細胞 / 肺細胞 / オルガノイド / 発生 / 分化誘導 / 発生・分化 / 細胞・組織 / シグナル伝達
Outline of Final Research Achievements

We investigated the principle of development of the tissue stem cell-niche complex "NEB" in the fetal airway epithelium. Using single cell RNA sequencing and ex vivo organ culture experiments, we attempted to elucidate the regulatory mechanism of NE cell migration that is essential for NEB formation. The results showed that the Robo-Slit signaling pathway is essential for NE cell migration via its cell repulsive function. Eph-Ephirin was found to be involved in regulation by repulsive cell migration. Trpc4 channels were also suggested to be involved in the precise mechanism of NE cell arrest. Furthermore, we induced respiratory epithelial progenitor cells from human iPSCs for human NE cell studies.

Academic Significance and Societal Importance of the Research Achievements

呼吸器は常に外気に触れている臓器であるため、損傷と再生を繰り返している。気道上皮の幹細胞生物学の中でも、本研究課題で扱うNEBは最初に同定された呼吸器上皮の幹細胞であり、これまで多くの研究者がその実態解明に取り組んできた。その後、基底細胞、BASCsやLNEPなど新しい幹細胞が発見されていく中で、今でもNEBは謎が多い。本研究の成果により、NEBの維持にROBO-Slit, Eph-Ephirin, Trpc4が重要な役割を果たしていることが示唆され、また、その分子機構についても考察がなされた。将来的には小細胞肺がん細胞とそのがん組織環境の分子実態解明、さらに新薬開発へと発展することができる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (22 results)

All 2020 2019 2018 2017 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (18 results) (of which Int'l Joint Research: 8 results,  Invited: 16 results) Remarks (3 results)

  • [Journal Article] Notch signaling in the mammalian respiratory system, specifically the trachea and lungs, in development, homeostasis, regeneration, and disease2019

    • Author(s)
      Kiyokawa Hirofumi、Morimoto Mitsuru
    • Journal Title

      Development, Growth & Differentiation

      Volume: 62 Issue: 1 Pages: 67-79

    • DOI

      10.1111/dgd.12628

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Canonical and Non-Canonical Wnt Signaling Coordinate Trachea Development in vivo and in vitro2020

    • Author(s)
      Mitsuru Morimoto
    • Organizer
      Keystone Symposia: Tissue Organoids as Models of Host Physiology and Pathophysiology of Disease
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 1細胞解像度で探る呼吸器の発生2019

    • Author(s)
      森本充
    • Organizer
      第49回呼吸器学会学術講演会シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Single-cell transcriptome and morphogenesis of developing trachea2019

    • Author(s)
      Mitsuru Morimoto
    • Organizer
      OIST Symposium: The State-of-the-Art 3D Tissue Culture & Organoids schedule
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] TRACHEA DEVELOPMENT AND REGENERATION2019

    • Author(s)
      Mitsuru Morimoto
    • Organizer
      Fusion Conferences: Niche-epithelial Stem Cell Interactions in Lung Health and Disease
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 1細胞解像度で見る呼吸器細胞パターニング2019

    • Author(s)
      森本充
    • Organizer
      第92回日本生化学会大会シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 呼吸器の成り立ちと肺神経内分泌細胞の起源2019

    • Author(s)
      森本充
    • Organizer
      第23回日本臨床内分泌病理学会学術総会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Does Chemotaxis or Durotaxis direct NE cell migration in developing lung?2019

    • Author(s)
      田村(古川)可奈、森本充
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] The dynamic epithelial transition of developing trachea unveiled by single cell RNA-seq2019

    • Author(s)
      清川寛文、森本充
    • Organizer
      Gordon Research Conference: Lung Development, Injury and Repair
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SYNCHRONIZED MESENCHYMAL CELL POLARIZATION TOWARD EPITHELIUM SHAPES THE TRACHEA AND ESOPHAGU2019

    • Author(s)
      森本充
    • Organizer
      Fusion Conferences: The Epithelial Mesenchymal Interactions in Lung Development and Fibrosis Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Complete mapping for developing trachea2019

    • Author(s)
      森本充
    • Organizer
      第139回日本薬学会シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 呼吸器の発生・再生ロジック2018

    • Author(s)
      森本充
    • Organizer
      新生児慢性肺疾患研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 呼吸器の管腔発生ロジック2018

    • Author(s)
      森本充
    • Organizer
      日本脈管学会シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Trachea development in single cell resolution2018

    • Author(s)
      森本充
    • Organizer
      第41回分子生物学会シンポジウム
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 1細胞解像度で理解する呼吸器発生の動態2018

    • Author(s)
      森本充
    • Organizer
      第11回呼吸器イメージング研究会.
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Alternative cell fate selection and following directed cell migration coordinate epithelial pattern of branching airways2017

    • Author(s)
      森本充
    • Organizer
      第50回日本発生生物学学会シンポジウム
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lung Development in Single Cell Resolution2017

    • Author(s)
      森本充
    • Organizer
      第45回箱根呼吸討論会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Alternative cell fate selection and following directed cell migration coordinate epithelial pattern of branching airways2017

    • Author(s)
      森本充
    • Organizer
      The 8th TAKAO International Symposium on Molecular Mechanism of Cardiopulmonary Disease
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Wnt5a-Ror2シグナルは気管の間充織細胞の極性を同調させ管腔の長さを制御する2017

    • Author(s)
      森本充、岸本圭史
    • Organizer
      第40回日本分子生物学会ワークショップ
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Remarks] 理化学研究所呼吸器形成研究チーム

    • URL

      http://www.cdb.riken.jp/lungdev/

    • Related Report
      2019 Annual Research Report
  • [Remarks] 理化学研究所 呼吸器形成研究チーム

    • URL

      http://www.cdb.riken.jp/lungdev/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://www.cdb.riken.jp/lungdev/

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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