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In vivo vascular remodeling: Molecular mechanisms of blood flow sensing and response by vascular endothelial cells

Research Project

Project/Area Number 19K16140
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 44020:Developmental biology-related
Research InstitutionSuntory Foundation for Life Sciences (2022)
Kyoto University (2019-2021)

Principal Investigator

Yuta Takase  公益財団法人サントリー生命科学財団, 生物有機科学研究所・統合生体分子機能研究部, 特別研究員 (70756478)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords生体内血管リモデリング / トリ胚 / 細胞挙動 / 血流刺激 / 感知・応答 / マイクロ流路デバイス / 血管パターニング / ALK1 / 血流ずり応力 / TGFbシグナリング / 血管リモデリング / ニワトリ胚
Outline of Research at the Start

血管ネットワークは全身に秩序だって分布し、酸素や栄養を供給することで高次生命活動を支える。これらの血管パターンの多くは、無秩序なメッシュ状の血管網が「リモデリング」することで完成する。しかし、血管リモデリングの成立過程、特に細胞挙動や分子機構は未だに解明されていない。申請者は、トリ胚血管網に注目した独自のリモデリング解析系を立ち上げ、血流の強弱に応答した内皮細胞の2種類の挙動変化がリモデリングを牽引することを見出しつつある。そこで本研究では、これら2種類の内皮細胞の挙動に注目し、内皮細胞の血流刺激に対する感知・応答機構を明らかにし、血管リモデリングの成立過程を包括的に理解することを目指す。

Outline of Final Research Achievements

Whereas the early formation of blood vessels is genetically determined during embryogenesis, at later stages non-genetic factors including hemodynamics (blood flow) play predominant roles in vasculature network formation, particularly the vasculature remodeling. To understand how the remodeling is regulated in living embryos at the cellular and molecular levels, I used the yolk sac vasculature in chicken embryos as an experimental model. At first, I established a local gene transfer method to developing vasculature. By taking advantages of this method, I found that the TGFβ receptor ALK1 triggers remodeling to the arteries, in association with the mechano-stress sensor TRPM7/8 and cytoskeletal regulator RhoA. These results suggest that the blood flow may be acting as the “physical stimulus”. Additionally, local knockdown experiments suggest that ALK1 may be also involved in determining the nature of blood vessels (arteries and veins) after remodeling.

Academic Significance and Societal Importance of the Research Achievements

血管ネットワークは、秩序だった動静脈パターンで全身に広く分布し、各臓器・器官への酸素や栄養素の供給などを通してさまざまな生理活動を支えている。これらの血管パターンの多くは、無秩序なメッシュ状の血管網がリモデリングすることで完成する。本研究成果は、発生過程における動脈リモデリングを制御する分子機構の一端を明らかにした点で生命科学分野における学術的意義を持つ。加えて、血管リモデリングの破綻は循環器系疾患やガン転移にも繋がりうることから、本研究成果は社会的にも大きな意義を持つ。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2020 2019 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (1 results) Remarks (1 results)

  • [Journal Article] The 3D Culturing of Organoids from Murine Intestinal Crypts and a Single Stem Cell for Organoid Research2023

    • Author(s)
      Takase Yuta、Fujishima Kazuto、Takahashi Toshio
    • Journal Title

      Journal of Visualized Experiments

      Volume: - Issue: 194 Pages: 1-10

    • DOI

      10.3791/65219

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Newly raised anti-c-Kit antibody visualizes morphology of interstitial cells of Cajal in the developing gut of chicken embryos.2022

    • Author(s)
      Yagasaki, R., Shikaya, Y., Kawachi, T., Inaba, M., Takase, Y., Takahashi, Y
    • Journal Title

      Develop. Growth Differ.

      Volume: 64(8) Issue: 8 Pages: 446-454

    • DOI

      10.1111/dgd.12808

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distribution Map of Peristaltic Waves in the Chicken Embryonic Gut Reveals Importance of Enteric Nervous System and Inter-Region Cross Talks Along the Gut Axis2022

    • Author(s)
      Shikaya Yuuki、Takase Yuta、Tadokoro Ryosuke、Nakamura Ryo、Inaba Masafumi、Takahashi Yoshiko
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 10 Pages: 827079-827079

    • DOI

      10.3389/fcell.2022.827079

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Blood flow-mediated gene transfer and siRNA-knockdown in the developing vasculature in a spatio-temporally controlled manner in chicken embryos2019

    • Author(s)
      Takase Yuta、Takahashi Yoshiko
    • Journal Title

      Developmental Biology

      Volume: 456 Issue: 1 Pages: 8-16

    • DOI

      10.1016/j.ydbio.2019.08.001

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 生体内血管リモデリング:血管網内の無血管領域"pillar"の変形と周辺血流との関係2020

    • Author(s)
      高瀬悠太
    • Organizer
      第6回血管生物医学会若手研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] Vascular remodeling: dynamics of avascular pillars regulated by local differences in blood flow2020

    • Author(s)
      Takase Y. and Takahashi Y.
    • Organizer
      第53回日本発生生物学会年会(誌上開催)
    • Related Report
      2020 Research-status Report
  • [Presentation] Vascular remodeling: dynamics of avascular pillars regulated by local differences in blood flow2020

    • Author(s)
      Takase Y. and Takahashi Y.
    • Organizer
      第125回日本解剖学会総会・全国学術集会(誌上開催)
    • Related Report
      2019 Research-status Report
  • [Presentation] Vascular remodeling: dynamics of avascular pillars regulated by local differences in blood flow2019

    • Author(s)
      Takase Y. Nakazato K. Mochizuki A. and Takahashi Y.
    • Organizer
      the 9th EMT International Association meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ニワトリ胚観察を通じた数理の可能性の探求2019

    • Author(s)
      高瀬悠太
    • Organizer
      数理が紡ぐ新しい科学研究連携ワークショップ 第一回 ~生命医科学と数理科学~
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Vascular remodeling: dynamics of avascular pillars regulated by local differences in blood flow2019

    • Author(s)
      Takase Y. Nakazato K. Mochizuki A. and Takahashi Y.
    • Organizer
      第52回日本発生生物学会年会
    • Related Report
      2019 Research-status Report
  • [Book] 京大式サイエンスの創り方2022

    • Author(s)
      京都大学大学院理学研究科MACS教育プログラム実行委員会
    • Total Pages
      318
    • Publisher
      京都大学学術出版会
    • ISBN
      9784814004089
    • Related Report
      2021 Research-status Report
  • [Remarks] research map 個人ページ

    • URL

      https://researchmap.jp/yu-takase

    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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