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Molecular mechanisms that control neuronal delamination in the developing neocortex

Research Project

Project/Area Number 16K06990
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurophysiology / General neuroscience
Research InstitutionNagoya University

Principal Investigator

KAWAGUCHI Ayano  名古屋大学, 医学系研究科, 准教授 (90360528)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords神経前駆細胞 / 神経発生 / アドヘレンスジャンクション / 放射状グリア / 細胞間接着 / 神経科学 / 細胞移動 / ニューロン移動 / 神経幹細胞 / 神経分化 / 細胞離脱 / 単一細胞遺伝子プロファイル / 発生・分化
Outline of Final Research Achievements

In the developing central nervous system, cell departure from the apical surface is the initial and fundamental step in the formation of the 3-dimensional, organized architecture. In addition to the delamination of differentiating cells, repositioning of progenitors to generate outer radial glial cells (oRGs) contributes to mammalian neocortical expansion; however, a comprehensive understanding of the mechanisms underlying these cell departures is lacking. In this study, we demonstrate that Lzts1 positively regulates neuronal delamination, mitotic somal translocation (MST), and oblique apical RG (aRG) division to generate oRGs in an expression level-dependent manner. Our data supports the hypothesis that neuronal delamination and oRG generation, the two major cell behaviors for departure from the apical surface, are two aspects of the same process, continuously variable cellular dynamics controlled by Lzts1.

Academic Significance and Societal Importance of the Research Achievements

本研究は、哺乳類の脳がどのようにしてできるのかを知ろうとする基礎研究である。本研究によって、分化細胞の速やかな脳室面からの離脱、移動開始を保証している分子機構が明らかとなった。また、outer radial gliaは大脳にしわのある生物種で特に多いことが知られている。本研究は、outer radial gliaの誕生の仕組みを初めて明らかとするとともに、実はそれが分化細胞の移動開始という脳の発生過程でみられる基本的現象と共通の分子によって制御されていることを示した。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018 2016 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results,  Acknowledgement Compliant: 1 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results) Remarks (1 results)

  • [Journal Article] Lzts1 controls both neuronal delamination and outer radial glial-like cell generation during mammalian cerebral development2019

    • Author(s)
      Kawaue T.、Shitamukai A.、Nagasaka A.、Tsunekawa Y.、Shinoda T.、Saito K.、Terada R.、Bilgic M.、Miyata T.、Matsuzaki F.、Kawaguchi A.
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 2780-2780

    • DOI

      10.1038/s41467-019-10730-y

    • NAID

      120006649601

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Temporal patterning of neocortical progenitor cells: How do they know the right time?2019

    • Author(s)
      Ayano Kawaguchi
    • Journal Title

      Neuroscience Research

      Volume: 138 Pages: 3-11

    • DOI

      10.1016/j.neures.2018.09.004

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neural progenitor cells undergoing Yap/Tead-mediated enhanced self-renewal form heterotopias more easily in the diencephalon than in the telencephalon.2018

    • Author(s)
      K.Saito, R. Kawasoe, H. Sasaki, A. Kawaguchi and T. Miyata
    • Journal Title

      Neurochem Res

      Volume: 43 Issue: 1 Pages: 171-180

    • DOI

      10.1007/s11064-017-2390-x

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Differences in the Mechanical Properties of the Developing Cerebral Cortical Proliferative Zone between Mice and Ferrets at both the Tissue and Single-Cell Levels.2016

    • Author(s)
      Nagasaka, A., Shinoda, T., Kawaue, T., Suzuki, M., Nagayama, K., Matsumoto, T., Ueno, N., Kawaguchi, A. and Miyata, T.
    • Journal Title

      Front Cell Dev. Biol.

      Volume: 25 Pages: 139-139

    • DOI

      10.3389/fcell.2016.00139

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Molecular mechanisms that control the generation of outer radial glia2020

    • Author(s)
      Ayano Kawaguchi
    • Organizer
      German-Japanese Developmental Neuroscience Meeting 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lzts1による前駆細胞の位置移動が大脳皮質ニューロンの運命に与える影響2020

    • Author(s)
      林祐希、宮田卓樹、川口綾乃
    • Organizer
      第125回日本解剖学会総会・全国学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Molecular mechanism controlling generation of outer radial glia during cerebral development2019

    • Author(s)
      Ayano Kawaguchi
    • Organizer
      52nd annual meeting of the Japanese Society of Developmental Biologists (JSDB)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 大脳発生におけるouter radial glia誕生の制御機構2019

    • Author(s)
      川口綾乃
    • Organizer
      中部幹細胞クラブ シンポジウム2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Lzts1による前駆細胞の位置移動が大脳皮質ニューロンの運命に与える影響2019

    • Author(s)
      林祐希、宮田卓樹、川口綾乃
    • Organizer
      第79回日本解剖学会中部支部学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Unified control of neuronal delamination and oRG generation by Lzts1.2018

    • Author(s)
      Ayano Kawaguchi
    • Organizer
      22nd Biennial Meeting of the International Society for Developmental Neuroscience
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Unified control of neuronal delamination and outer radial glial generation during cerebral development.2018

    • Author(s)
      川口綾乃
    • Organizer
      第41回日本神経科学大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 大脳発生におけるニューロン分化に伴う脳室面からの細胞離脱とouter radial glia誕生を制御する共通の機構2018

    • Author(s)
      川口綾乃
    • Organizer
      「次世代脳」合同若手シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Cellular departure from the apical surface in the developing brain2018

    • Author(s)
      A Kawaguchi
    • Organizer
      International Young Scientists Workshop on Neural Development and Stem Cells 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 名古屋大学プレスリリース

    • URL

      https://www.med.nagoya-u.ac.jp/medical_J/research/pdf/Nat_Com_190625.pdf

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

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