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Establishment for the foundation of limb regeneration technique by mimicking limb developmental processes

Research Project

Project/Area Number 21K06201
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44020:Developmental biology-related
Research InstitutionKyushu University

Principal Investigator

Atsuta Yuji  九州大学, 理学研究院, 講師 (80874685)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords四肢発生 / 四肢前駆細胞 / リプログラミング / 3次元培養 / AER / トランスジェニックニワトリ / ダイレクトリプログラミング / 四肢再生
Outline of Research at the Start

本研究では、以下の3項目について研究を行う。
(1)ヒトiLPCを用いた肢芽様オルガノイド “リムボイド”の構築;リプログラミング技術とマイクロ流路システムを組み合わせることによって、ヒト線維芽細胞からヒト四肢様オルガノイド(リムボイド)作製を試みる。
(2)内在性AER細胞の培養条件の最適化とリプログラミングによるiAERの作製;ニワトリ線維芽細胞からAER様細胞を生み出すiAERリプログラミング法確立を目指す。
(3)ニワトリiLPCとiAERを用いた異所肢の作製;誘導されたiLPCとiAERが生体内で四肢発生を再現できるかについて調べるため、両細胞を用いて異所肢の作製を試みる

Outline of Final Research Achievements

The forced expression of PZL (Prdm16, Zbtb16, Lin28a) or PZLL (PZL + Lin41) has been found to convert mouse fibroblasts into limb progenitor-like cells, and the research results have been compiled and published (Atsuta et al., Dev Cell, 2024). Furthermore, when the same reprogramming factors were used to reprogram human fibroblasts, an increase in the expression of SALL4, NMYC, LHX2, and MEIS1, which are representative marker genes of limb progenitor cells, was observed. Additionally, we attempted to optimize AER (Apical Ectodermal Ridge) cell culture conditions and to generate a transgenic limb bud reporter chicken line. As described in the report, we achieved certain successes in each study.

Academic Significance and Societal Importance of the Research Achievements

四肢に由来しない細胞に四肢前駆細胞の性質を与え得るリプログラミング因子の同定は、四肢発生研究分野のブレークスルーである。これらの因子群(PZLL)は本来の四肢発生においても、それを開始する能力を持つと考えられるが、これまで四肢形成に関わることが知られていなかったため新たな発見となった。また、大量培養が可能な線維芽細胞を、手足の元となる四肢前駆細胞のような細胞へと転換することが可能となったため、そのリプログラム細胞を利用した四肢再生医療技術の開発も進めることができるかも知れない。これらのことから本研究を通して、四肢発生の理解の深化や再生技術開発の発展にわずかながら貢献できたと考えている。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (9 results)

All 2024 2023 2022 2021 Other

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Direct reprogramming of non-limb fibroblasts to cells with properties of limb progenitors2024

    • Author(s)
      Atsuta Yuji、Lee ChangHee、Rodrigues Alan R.、Colle Charlotte、Tomizawa Reiko R.、Lujan Ernesto G.、Tschopp Patrick、Galan Laura、Zhu Meng、Gorham Joshua M.、Vannier Jean-Pierre、Seidman Christine E.、Seidman Jonathan G.、Ros Marian A.、Pourqui? Olivier、Tabin Clifford J.
    • Journal Title

      Developmental Cell

      Volume: 59 Issue: 3 Pages: 415-430.e8

    • DOI

      10.1016/j.devcel.2023.12.010

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] LIN28 is essential for the maintenance of chicken primordial germ cells2023

    • Author(s)
      Suzuki Katsuya、Kwon Seung June、Saito Daisuke、Atsuta Yuji
    • Journal Title

      Cells & Development

      Volume: 176 Pages: 203874-203874

    • DOI

      10.1016/j.cdev.2023.203874

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Differential modularity of the mammalian Engrailed 1 enhancer network directs sweat gland development2023

    • Author(s)
      Aldea Daniel、Kokalari Blerina、Atsuta Yuji、Dingwall Heather L.、Zheng Ying、Nace Arben、Cotsarelis George、Kamberov Yana G.
    • Journal Title

      PLOS Genetics

      Volume: 19 Issue: 2 Pages: e1010614-e1010614

    • DOI

      10.1371/journal.pgen.1010614

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Prime editing in chicken fibroblasts and primordial germ cells2022

    • Author(s)
      Atsuta Yuji、Suzuki Katsuya、Iikawa Hiroko、Yaguchi Haruna、Saito Daisuke
    • Journal Title

      Development, Growth & Differentiation

      Volume: 64 Issue: 9 Pages: 548-557

    • DOI

      10.1111/dgd.12823

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] In ovo electroporation of chicken limb bud ectoderm2021

    • Author(s)
      Tomizawa Reiko R.、Tabin Clifford J.、Atsuta Yuji
    • Journal Title

      Developmental Dynamics

      Volume: - Issue: 9 Pages: 1628-1638

    • DOI

      10.1002/dvdy.352

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Direct reprogramming of non-limb fibroblasts to cells with properties of limb progenitors2023

    • Author(s)
      熱田勇士
    • Organizer
      第46回日本分子生物学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Direct reprogramming of non-limb fibroblasts to cells with properties of limb progenitors2022

    • Author(s)
      Yuji Atsuta
    • Organizer
      第55回日本発生生物学会
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Remarks] 手足をつくる四肢前駆細胞を産むリプログラミング法の開発に成功

    • URL

      https://www.kyushu-u.ac.jp/ja/researches/view/1036

    • Related Report
      2023 Annual Research Report
  • [Patent(Industrial Property Rights)] Methods for reprogramming fibroblasts into limb progenitors2023

    • Inventor(s)
      Harvard University
    • Industrial Property Rights Holder
      Harvard University
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
    • Overseas

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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