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Molecular mechanisms of retinal disease caused by the disruption of the signaling pathway involving small GTPases

Research Project

Project/Area Number 19K09974
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionUniversity of Hyogo

Principal Investigator

Matsuda Takahiko  兵庫県立大学, 理学研究科, 客員研究員(研究員) (40313093)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords低分子量G蛋白質 / 網膜 / 発生 / ゲノム編集
Outline of Research at the Start

本研究では、R-Ras subfamilyに属する低分子量G蛋白質TC21が、マウス網膜の発生・成熟・維持に於いて果たす生理的役割を詳細に調べることを目的とする。なお、R-Ras subfamilyのメンバー間での機能重複の可能性を考慮し、R-Ras subfamilyを構成する3種類の低分子量G蛋白質(TC21, R-Ras, M-Ras)を1セットとして捉え、これらの機能を統合的に解析する計画である。

Outline of Final Research Achievements

The R-Ras subfamily small GTPases are composed of R-Ras, TC21(R-Ras2), and M-Ras (R-Ras3). Although previous studies using cultured cells (in vitro) showed that they play essential roles in various biological processes, including cell growth, differentiation, and morphogenesis, little is known about their functions at the tissue level in vivo. This study focused on TC21 and tried to elucidate its role in mouse retinal development.

Academic Significance and Societal Importance of the Research Achievements

本研究により、低分子量G蛋白質TC21を介した細胞内シグナルを人為的に遮断したり増強すると、マウス網膜の発生に異常が出ることが明らかになった。この結果から、TC21は網膜発生の重要な制御因子の一つであると考えられる。現時点ではTC21遺伝子の変異に起因するヒト網膜疾患の事例は報告されていないが、今後の研究により、TC21遺伝子の変異とヒト網膜疾患との相関が明らかになる可能性がある。

Report

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

    (4 results)

All 2021 2020 2019

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

  • [Journal Article] Optimized CRISPR/Cas9-mediated in Vivo Genome Engineering Applicable to Monitoring Dynamics of Endogenous Proteins in the Mouse Neural Tissues2019

    • Author(s)
      Takahiko Matsuda & Izumi Oinuma
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 11309-11309

    • DOI

      10.1038/s41598-019-47721-4

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Imaging Endogenous Synaptic Proteins in Primary Neurons at Single-Cell Resolution Using CRISPR/Cas92019

    • Author(s)
      Takahiko Matsuda & Izumi Oinuma
    • Journal Title

      Molecular Biology of the Cell

      Volume: 30 Issue: 22 Pages: 2838-2855

    • DOI

      10.1091/mbc.e19-04-0223

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 精密・迅速・可逆的な遺伝子発現ON/OFF制御システムの開発と神経発生研究への適用2021

    • Author(s)
      松田孝彦、生沼泉
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ゲノム編集技術を用いたマウス中枢神経系における内在性蛋白質の蛍光標識と発現動態の解析2020

    • Author(s)
      松田孝彦、生沼泉
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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