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Mechanisms of subventricular zone formation in heterotopia pathology and brain evolution

Research Project

Project/Area Number 20H03413
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 48010:Anatomy-related
Research InstitutionOkayama University (2022-2023)
Nagoya University (2020-2021)

Principal Investigator

Kawaguchi Ayano  岡山大学, 医歯薬学域, 教授 (90360528)

Co-Investigator(Kenkyū-buntansha) 岡本 麻友美  奈良女子大学, 自然科学系, 准教授 (30551965)
宮田 卓樹  名古屋大学, 医学系研究科, 教授 (70311751)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords神経幹細胞 / 神経前駆細胞 / 大脳形成 / 脳進化 / 神経発生 / 脳形成 / 神経解剖学 / 神経科学 / 脳室下帯 / outer radial glia / ニューロン移動
Outline of Research at the Start

中枢神経系が正常な生理的機能を果たすためには正しく形成された脳組織構造が必要である。結節状の異所性灰白質(ヘテロトピア)は先天性の脳形成異常の一つであり、発生過程におけるニューロンの移動障害がその原因と考えられている。本研究では、結節状ヘテロトピアの病態理解の観点から幼若ニューロンの移動に、脳進化の観点からSVZに存在する未分化な神経前駆細胞の誕生の仕組みに注目し、これらに対して分子遺伝学・分子細胞生物学的な実験を行うことで、SVZ形成の組織メカニズムと、それが脳全体の形作りに果たす役割を明らかとする。

Outline of Final Research Achievements

To ensure the proper physiological functions of the central nervous system, a correctly formed brain structure is necessary. This study aims to elucidate the molecular mechanisms generating progenitor cells in the subventricular zone (SVZ) of the developing brain. Focusing on the transcription factor Tox3, which increases its expression in neural progenitors along with development goes, we validated its expression in mice and ferrets. Through in vivo forced expression experiments in mice, live imaging, analysis of downstream gene expression and loss-of-function experiments, we demonstrated that Tox3 induces the repositioning of ventricular zone progenitor cells to become SVZ progenitors.

Academic Significance and Societal Importance of the Research Achievements

本研究により、Tox3が大脳発生において脳を構成する様々な細胞を生み出す前駆細胞の「集団移動」に重要な役割を果たしていることが確認された。また、これらの前駆細胞の集団移動とニューロン分化に伴う細胞移動が共通の分子機構で制御されていることが示された。マウスとフェレットモデルを用いた比較研究の結果は、進化に伴う哺乳類の脳の複雑化を理解するうえでも興味深い成果である。正常な脳発生の理解が深まり、将来的には神経発生異常やニューロン移動障害など関連する疾患の病態理解につながることが期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (21 results)

All 2024 2023 2022 2021 2020

All Journal Article (8 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (13 results) (of which Int'l Joint Research: 2 results,  Invited: 10 results)

  • [Journal Article] Morphological perspectives on the fate determination of neural progenitor cells2023

    • Author(s)
      Kawaguchi Ayano
    • Journal Title

      Okayama Igakkai Zasshi (Journal of Okayama Medical Association)

      Volume: 135 Issue: 1 Pages: 12-17

    • DOI

      10.4044/joma.135.12

    • ISSN
      0030-1558, 1882-4528
    • Year and Date
      2023-04-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Calcium signals tune AMPK activity and mitochondrial homeostasis in dendrites of developing neurons2023

    • Author(s)
      Hatsuda Akane、Kurisu Junko、Fujishima Kazuto、Kawaguchi Ayano、Ohno Nobuhiko、Kengaku Mineko
    • Journal Title

      Development

      Volume: 150 Issue: 21

    • DOI

      10.1242/dev.201930

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Advanced Techniques Using In Vivo Electroporation to Study the Molecular Mechanisms of Cerebral Development Disorders2023

    • Author(s)
      Yang Chen、Shitamukai Atsunori、Yang Shucai、Kawaguchi Ayano
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 18 Pages: 14128-14128

    • DOI

      10.3390/ijms241814128

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regulation of neural stem cell morphology in brain development2023

    • Author(s)
      下向敦範、Chen Yang, 川口綾乃
    • Journal Title

      月間「細胞」

      Volume: 55 Pages: 850-853

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] CD206+ macrophages transventricularly infiltrate the early embryonic cerebral wall to differentiate into microglia.2023

    • Author(s)
      Hattori Y, Kato D, Murayama F, Koike S, Asai H, Yamasaki A, Naito Y, Kawaguchi A, Hiroyuki Konishi H, Prinz M, Masuda T, Wake H, Miyata T.
    • Journal Title

      Cell Rep

      Volume: 42 Issue: 2 Pages: 112092-112092

    • DOI

      10.1016/j.celrep.2023.112092

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neuronal Delamination and Outer Radial Glia Generation in Neocortical Development2021

    • Author(s)
      Kawaguchi A
    • Journal Title

      Front. Cell Dev. Biol.

      Volume: 8 Pages: 623573-623573

    • DOI

      10.3389/fcell.2020.623573

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lzts1 as a master regulator of neuronal delamination in cerebral development2020

    • Author(s)
      川口綾乃
    • Journal Title

      生化学

      Volume: 92 Issue: 6 Pages: 817-821

    • DOI

      10.14952/SEIKAGAKU.2020.920817

    • NAID

      40022454272

    • ISSN
      0037-1017
    • Year and Date
      2020-12-25
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transient microglial absence assists postmigratory cortical neurons in proper differentiation2020

    • Author(s)
      Yuki Hattori, Yu Naito, Yoji Tsugawa, Shigenori Nonaka, Hiroaki Wake, Takashi Nagasawa, Takaki Miyata
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 1631-1631

    • DOI

      10.1038/s41467-020-15409-3

    • NAID

      120006841707

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 神経幹細胞と外界シグナルをつなぐ細胞形態2024

    • Author(s)
      下向敦範, 間瀬俊, 末次妙子, 川口綾乃、松崎文雄
    • Organizer
      第129回日本解剖学会総会・全国学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 新任教授のリアル:独立から解剖学教室の運営まで2024

    • Author(s)
      川口綾乃
    • Organizer
      第129回日本解剖学会総会・全国学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 機能的リンパ解剖学とリンパ浮腫診療2024

    • Author(s)
      品岡玲, 川口綾乃
    • Organizer
      第129回日本解剖学会総会・全国学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 複雑な脳、シンプルな始まり2023

    • Author(s)
      川口綾乃
    • Organizer
      早稲田大学 人間科学学術院 生命科学系シンポジウム「脳の不思議と人間の進化」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Mechanisms regulating neuronal delamination and repositioning of neural progenitor cells in cerebral development2023

    • Author(s)
      Ayano Kawaguchi
    • Organizer
      Internatiional Symposium on Neural Development and Diseases
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 発生期の神経幹細胞の挙動の制御機構とその脳形成への貢献2023

    • Author(s)
      川口綾乃
    • Organizer
      第128回日本解剖学会総会・全国学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 上皮構造からの細胞離脱による器官形成制御2022

    • Author(s)
      川口綾乃
    • Organizer
      JST創発的研究支援事業「融合の場」第1回公開シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Generation of outer radial glial cells that contribute to evolutionary expansion of the cerebral cortex2022

    • Author(s)
      Ayano Kawaguchi
    • Organizer
      Neuro2022 第45回日本神経科学大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] TOX3によるouter radial gliaの誕生の制御2022

    • Author(s)
      城航平、川口綾乃、宮田卓樹
    • Organizer
      第82回日本解剖学会中部支部学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Neuronal delamination and outer radial glia generation in neocortical development2022

    • Author(s)
      Ayano Kawaguchi
    • Organizer
      The International Symposium on Development and Plasticity of Neural Systems
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 上皮構造からの細胞離脱による器官形成制御2021

    • Author(s)
      川口綾乃
    • Organizer
      新学術領域「脳構築における発生時計と場の連携」領域班会議
    • Related Report
      2021 Annual Research Report
  • [Presentation] 発生時刻進行に伴い神経前駆細胞内で発現上昇する遺伝子のin vivo 機能解析2020

    • Author(s)
      川口綾乃
    • Organizer
      新学術領域「脳構築における発生時計と場の連携」領域班会議
    • Related Report
      2020 Annual Research Report
  • [Presentation] 脳発生におけるニューロン移動開始の鍵分子 Lzts1の機能からみる大脳組織形成の仕組み2020

    • Author(s)
      川口綾乃
    • Organizer
      第63回神経化学会大会シンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited

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Published: 2020-04-28   Modified: 2025-01-30  

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