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Mechanism of organ and body size regulation by actin polymerization

Research Project

Project/Area Number 19K07352
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48040:Medical biochemistry-related
Research InstitutionYamaguchi University

Principal Investigator

Asaoka Yoichi  山口大学, 大学院医学系研究科, 講師 (10436644)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsYAP / メカノホメオスターシス / 臓器・個体サイズ制御 / ゼブラフィッシュ / メダカ / 組織再生 / 力学計測系 / アクチン重合 / 小型魚類
Outline of Research at the Start

臓器および個体サイズの制御は、生物の発生および恒常性維持に不可欠であり、サイズ制御の破綻はがんなどの疾患の発症に直結する。これまで研究代表者はメダカ変異体の解析から、YAPがアクチン重合を適切に制御し、細胞張力を正常に保つことで立体的な臓器構築を司ることを見出した。そこで本研究では、小型魚類を用いて臓器サイズを規定するアクチン重合制御因子を同定するとともに、YAPによるアクチン重合のターンオーバーの制御メカニズムを精査し、YAP-アクチンシグナルによる臓器・個体サイズの制御メカニズムを解明することを最終目標とする。

Outline of Final Research Achievements

(1) In order to understand the YAP mechanohomeostasis in the process of 3D organ/tissue formation, I tried to set up a system to directly measure the mechanical properties of organ/tissue. Applying the methods of the Campas et al.(Campas et al Nat. Methods 2014) for the quantification of mechanical forces during early embryogenesis, I was able to measure the physical properties of the medaka YAP mutant embryos.
(2) I tried to establish a system to measure the mechanical properties of tail fin in adult fish during a long period. By establishing a perfusion system of breeding water containing the anaesthetic for long-term time-lapse imaging, I succeeded in measuring mechanical properties (viscoelasticity) in regenerating tail fin.

Academic Significance and Societal Importance of the Research Achievements

現在、力学恒常性の観点からの病因解明・治療法開発は遅れており、本研究成果を通して得られる力学恒常性の作動原理の理解は、組織の硬さというこれまでとは視点の異なる新しい標的を狙ったがん治療法にも応用できるという意義がある。がんの成立過程においては、粘弾性の他にも圧力や張力などさまざまな生体組織の力学特性を把握することが不可欠であり、組織の時空間的な力学特性の経時的計測技術を確立することも今後の必須の課題であると考える。

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

    (13 results)

All 2022 2021 2019 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (4 results) (of which Invited: 4 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] bath大学(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] バース大学(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] バース大学(英国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] バース大学(英国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] AT-hook DNA-binding motif-containing protein one knockdown downregulates EWS-FLI1 transcriptional activity in Ewing’s sarcoma cells2022

    • Author(s)
      Takao Kitagawa, Daiki Kobayashi, Byron Baron, Hajime Okita, Tatsuo Miyamoto, Rie Takai, Durga Paudel, Tohru Ohta, Yoichi Asaoka, Masayuki Tokunaga, Koji Nakagawa, Makoto Furutani-Seiki, Norie Araki, Yasuhiro Kuramitsu, Masanobu Kobayashi
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 10 Pages: 0269077-0269077

    • DOI

      10.1371/journal.pone.0269077

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Brain-specific homeobox Bsx specifies identity of pineal gland between serially homologous photoreceptive organs in zebrafish2019

    • Author(s)
      Mano Hiroaki、Asaoka Yoichi、Kojima Daisuke、Fukada Yoshitaka
    • Journal Title

      Communications Biology

      Volume: 2 Issue: 1 Pages: 364-364

    • DOI

      10.1038/s42003-019-0613-1

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Studying YAP-Mediated 3D Morphogenesis Using Fish Embryos and Human Spheroids2019

    • Author(s)
      Yoichi Asaoka, Hitoshi Morita, Hiroko Furumoto, Carl-Philipp Heisenberg, and Makoto Furutani-Seiki
    • Journal Title

      Methods in Molecular Biology

      Volume: 1893 Pages: 167-181

    • DOI

      10.1007/978-1-4939-8910-2_14

    • ISBN
      9781493989096, 9781493989102
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The clock components Period2, Cryptochrome1a, and Cryptochrome2a function in establishing light-dependent behavioral rhythms and/or total activity levels in zebrafish2019

    • Author(s)
      Hirayama J, Alifu Y, Hamabe R, Yamaguchi S, Tomita J, Maruyama Y, Asaoka Y , Nakahama K, Tamaru T, Takamatsu K, Takamatsu N, Hattori A, Nishina S, Azuma N, Kawahara A, Kume K, Nishina H.
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 196-196

    • DOI

      10.1038/s41598-018-37879-8

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 小型魚類を用いた3次元臓器形成に不可欠な力学恒常性の解析2021

    • Author(s)
      浅岡 洋一
    • Organizer
      新学術領域「細胞ダイバース」第6回公開シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 若手シンポジウム2 何が生物の「サイズ」を決めるのか? 「3次元臓器構築に不可欠なYAP-メカノホメオスターシス機構」2021

    • Author(s)
      浅岡 洋一
    • Organizer
      第126回日本解剖学会総会・全国学術集会 / 第98回日本生理学会大会合同大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 小型魚類メダカを用いた3次元臓器形成機構の解析2019

    • Author(s)
      浅岡 洋一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] YAPとPTPN11の変異フィッシュを用いたNoonan症候群の発症メカニズムの解析2019

    • Author(s)
      浅岡 洋一, 要 匡, 古谷-清木 誠
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Patent(Industrial Property Rights)] YAP阻害剤を有効成分とするIL-8遺伝子又はMHC classI I関連遺伝子の 発現量の増強剤2019

    • Inventor(s)
      白井睦訓, 清木誠, 浅岡洋一, 荻野英賢
    • Industrial Property Rights Holder
      山口大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-067200
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report

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

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