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Mechanisms of brain development by compressive stress on neural stem cells and brain tissue

Planned Research

Project AreaPressio neuro-brain science: principle for brain function development through compressive stresses under physiological or pathological condition
Project/Area Number 21H05126
Research Category

Grant-in-Aid for Transformative Research Areas (B)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (III)
Research InstitutionKindai University (2022-2023)
Kyoto University (2021)

Principal Investigator

Nakazawa Naotaka  近畿大学, 理工学部, 講師 (90800780)

Project Period (FY) 2021-08-23 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥32,760,000 (Direct Cost: ¥25,200,000、Indirect Cost: ¥7,560,000)
Fiscal Year 2023: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
Fiscal Year 2022: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2021: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Keywords神経発生 / メカノバイオロジー / メカノレスポンス / 神経細胞移動 / 脳脊髄液 / 脳脊髄圧 / 神経幹細胞
Outline of Research at the Start

本研究では、脳の形成過程で宿命的に発生する圧刺激が、神経細胞のもととなる神経幹細胞の正常な分裂・分化にどのように影響するのか、を細胞・組織の観察と微小な伸展デバイスの利用を組み合わせて明らかにする。これによって、領域目標である「脳内の圧刺激による脳機能の基盤形成原理の解明」の達成に神経発生の観点から貢献する。

Outline of Final Research Achievements

In this study, we focused on 1) cell migration of newborn neurons and 2) proliferation and differentiation of neuroblasts and neural stem cells, which are involved in brain development. By combining conventional biochemical, cell biological, and genetic methods with imaging techniques using a microfluidic device, we have identified 1) the molecular mechanisms of neuronal migration driven by pressure stimuli from the extracellular environment in confined brain tissue,2) mechanical compression to neuroblasts and their nuclei alters gene expression. Furthermore, we established a novel experimental system to add pressure stimulation to brain tissue.

Academic Significance and Societal Importance of the Research Achievements

脳はからだ全体を調節する役割を担っていることから、脳の形態形成・機能発現の仕組みを理解することは、我々の健康をどのように維持していくのか?という問いに対する答えの礎となる。本研究の実施により、圧刺激を検知するメカノセンサー分子によって脳発生過程のニューロン遊走が調節されることや分化能をもつ神経芽細胞への圧刺激によって遺伝子発現が調節されることが明らかとなった。これらは、神経科学における積年の謎の一端を明らかにしただけでなく、脳内の圧刺激の検知機構が脳機能に影響を与えるという新たな着眼点を含んでいることから、本研究の研究成果は脳病態の理解や新たな医療技術開発に大きな波及効果があると考えられる。

Report

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

    (14 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 4 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results) Book (2 results) Remarks (2 results)

  • [Int'l Joint Research] シンガポール国立大学(シンガポール)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] シンガポール国立大学(シンガポール)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] シンガポール国立大学(シンガポール)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Frey T, Murakami T, Maki K, Kawaue T, Tani N, Sugai A, Nakazawa N, Ishiguro K, Adachi T, Kengaku M, Ohki K, Gotoh Y & Kishi Y2023

    • Author(s)
      Age-associated reduction of nuclear shape dynamics in excitatory neurons of the visual cortex
    • Journal Title

      Aging Cell

      Volume: 22 Issue: 9 Pages: 1-14

    • DOI

      10.1111/acel.13925

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Editorial: Multicellularity: Views from cellular signaling and mechanics2023

    • Author(s)
      Hirata Hiroaki、Nakazawa Naotaka、Hirashima Tsuyoshi、Ravasio Andrea
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 11 Pages: 1-3

    • DOI

      10.3389/fcell.2023.1172921

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Migrating neurons adapt motility modes to brain microenvironments via a mechanosensor, PIEZO12023

    • Author(s)
      Nakazawa Naotaka、Grenci Gianluca、Kameo Yoshitaka、Takeda Noriko、Sawada Tsuyoshi、Kurisu Junko、Zhang Zhejing、Adachi Taiji、Nonomura Keiko、Kengaku Mineko
    • Journal Title

      bioRiv

      Volume: -

    • DOI

      10.1101/2023.01.17.524464

    • Related Report
      2022 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Age-associated reduction of nuclear shape dynamics in excitatory neurons of the visual cortex2022

    • Author(s)
      Tanita Frey, Tomonari Murakami, Koichiro Maki, Takumi Kawaue, Ayaka Sugai, Naotaka Nakazawa, Taiji Adachi, Mineko Kengaku, Kenichi Ohki, Yukiko Gotoh, Yusuke Kishi
    • Journal Title

      bioRxiv

      Volume: - Pages: 504704-504704

    • DOI

      10.1101/2022.08.22.504704

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Presentation] 狭小な空間内を遊走する新生ニューロンがもつ力学刺激に対する検知・応答機構2023

    • Author(s)
      中澤直高
    • Organizer
      第46回 日本分子生物学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Molecular mechanisms of mechano-sensing / -response for neuronal migration in 3D brain tissue2022

    • Author(s)
      Naotaka Nakazawa, Gianluca Grenci, Mineko Kengaku
    • Organizer
      NEURO2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Mechanical stress by extracellular confinement triggers a mode transition of neuronal migration2021

    • Author(s)
      Naotaka Nakazawa, Gianluca Grenci, Mineko Kengaku
    • Organizer
      Materials, Mimics, and Microfluidics: Engineering tools for Mechanobiology (MBI 3M)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 「生物の科学 遺伝」2024年3月発行号2024

    • Author(s)
      野々村恵子、中澤直高
    • Total Pages
      6
    • Publisher
      NTS
    • Related Report
      2023 Annual Research Report
  • [Book] Multicellularity: Views from cellular signaling and mechanics2023

    • Author(s)
      Hiroaki Hirata, Andrea Ravasio, Naotaka Nakazawa and Tsuyoshi Hirashima
    • Total Pages
      138
    • Publisher
      Frontiers ebook
    • Related Report
      2022 Annual Research Report
  • [Remarks] 近畿大学 理工学部 エネルギー物質学科 中澤研究室ウェブサイト

    • URL

      https://nakazawalab.com/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 「プレッシオ脳神経科学の創生」 ウェブサイト

    • URL

      https://pressio-neurobrain.org/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-10-22   Modified: 2025-01-30  

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