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Regulation of neural differentiation in Wnt signaling by WNK.

Research Project

Project/Area Number 21K06165
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44010:Cell biology-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Shibuya Hiroshi  東京医科歯科大学, 難治疾患研究所, 教授 (30261324)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsWNK / Wntシグナル / HSANII / WNK/HSN2 / GSK3β / E3 ligase / β-catenin / WNK1 / HSN2 / Maea. S / β-カテニン / 頭部形成 / ユビキチン化 / 神経分化 / LHX8 / GID complex
Outline of Research at the Start

我々は高血圧症PHAII原因遺伝子WNKの解析から生体内においてWNK→SPAK/OSR1→共輸送体というシグナル伝達経路が腎臓における血圧調整に関与することを示した。一方、WNK1は遺伝性知覚ニューロパチー(HSANII)の原因遺伝子でもあり、我々はWNK1シグナルがLhx8遺伝子の発現を介して神経分化に関わることを明らかにしている。最近、WNKの新たな機能として、β-cateninの分解制御に関わることを明らかにした。本研究ではWNKによるWntシグナル制御について、さらなる解析を進め、神経発生におけるWNKシグナルの機能解明とWntシグナルにおけるWNKの新たな役割を解明する。

Outline of Final Research Achievements

To elucidate the function of WNK in the nervous system, we have analyzed the regulatory mechanism of Wnt signaling by WNK. To clarified in detail the relationship and the role between GSK3β and the transcription factor, Lhx8 in neuronal differentiation, we performed the analysis using HSN2 mutants reported in HSANII patients. We have elucidated the mechanism of HSANII pathogenesis by these signaling molecules. S, We have also revealed a new mechanism of repression by Xenopus E3 ligase, Maea. S in canonical Wnt signaling and in embryonic development.

Academic Significance and Societal Importance of the Research Achievements

これまでHSANII原因遺伝子WNKによる、その発症分子機構は全く知られていなかった。本研究により、HSANII患者で報告されているHSN2変異体を用いた解析からWNK/HSN2シグナルにおけるGSK3βや転写因子Lhx8の神経分化における役割を明らかにすることができた。この発見は、なぜWNK/HSN2変異がHSANII発症を引き起こすのか、その分子機構を示すものである。一方で、Xenopusを用いた胚発生機構の研究からWntシグナルに対するWNKとそのE3 ligaseの関係を明らかした。これら本研究成果はWNK分子の多様な疾患に対する役割を示す非常に有用な知見となると考えられた。

Report

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

    (8 results)

All 2023 2022

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (2 results)

  • [Journal Article] ccl19 and ccl21 affect cell movements and differentiation in early Xenopus development2023

    • Author(s)
      Goto T, Michiue T, Shibuya H.
    • Journal Title

      Dev. Growth. Diff.

      Volume: 65 Issue: 3 Pages: 175-189

    • DOI

      10.1111/dgd.12847

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rho family small GTPase Rif regulates Wnt5a-Ror1-Dvl2 signaling and promotes lung adenocarcinoma progression2023

    • Author(s)
      Nishita Michiru、Kamizaki Koki、Hoshi Kyoka、Aruga Kana、Nishikaku Ikumi、Shibuya Hiroshi、Matsumoto Kunio、Minami Yasuhiro
    • Journal Title

      Journal of Biological Chemistry

      Volume: 299 Issue: 10 Pages: 105248-105248

    • DOI

      10.1016/j.jbc.2023.105248

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] <i>ccr7</i> affects both morphogenesis and differentiation during early <i>Xenopus</i> embryogenesis2022

    • Author(s)
      Goto Toshiyasu、Michiue Tatsuo、Shibuya Hiroshi
    • Journal Title

      Development, Growth &amp; Differentiation

      Volume: 64 Issue: 5 Pages: 254-260

    • DOI

      10.1111/dgd.12790

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] WNK1/HSN2 mediates neurite outgrowth and differentiation via a OSR1/GSK3β-LHX8 pathway2022

    • Author(s)
      Shimizu Masahiro、Shibuya Hiroshi
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 15858-15858

    • DOI

      10.1038/s41598-022-20271-y

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] <i>maea</i> affects head formation through ?‐catenin degradation during early <i>Xenopus laevis</i> development2022

    • Author(s)
      Goto Toshiyasu、Shibuya Hiroshi
    • Journal Title

      Development, Growth &amp; Differentiation

      Volume: 65 Issue: 1 Pages: 29-36

    • DOI

      10.1111/dgd.12828

    • Related Report
      2022 Research-status Report
  • [Journal Article] Enhanced O-GlcNAc modification induced by the RAS/MAPK/CDK1 pathway is required for SOX2 protein expression and generation of cancer stem cells2022

    • Author(s)
      Shimizu Masahiro、Shibuya Hiroshi、Tanaka Nobuyuki
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 2910-2910

    • DOI

      10.1038/s41598-022-06916-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] SOX2の発現とがん幹細胞の発生には、RAS/MAPK/CDK1経路によって誘導されるO-GlcNAc修飾の増大が必要である2023

    • Author(s)
      清水 幹容、澁谷浩司、田中信之
    • Organizer
      第46回日本分子生物学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ccr7 affects both morphogenesis and differentiation during early Xenopus embryogenesis.2022

    • Author(s)
      後藤利保、道上達男、澁谷浩司
    • Organizer
      第93回日本動物学会年会
    • Related Report
      2022 Research-status Report

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

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