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Pathophysiological significance of astrocyte in developmental disorders with gene abnormalities

Research Project

Project/Area Number 20K21589
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 52:General internal medicine and related fields
Research InstitutionInstitute for Developmental Research Aichi Developmental Disability Center

Principal Investigator

Nagata Koh-ichi  愛知県医療療育総合センター発達障害研究所, 分子病態研究部, 部長 (50252143)

Project Period (FY) 2020-07-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywordsアストロサイト / 発達障害 / モデルマウス / マウスモデル / 遺伝子異常 / 電気穿孔法 / 中枢神経
Outline of Research at the Start

発達障害は人口の約10%に発症し、1000以上の責任遺伝子(候補を含む)が報告されている。病態の本質は、神経シナプスの機能障害を基盤とする大脳皮質発達障害とされる。一方、従来はニューロン機能を支える裏方と考えられてきたグリア細胞(アストロサイト)に発現する分子の異常も発達障害の病態に深く関与する。本研究では、遺伝子異常を原因とする発達障害の病態メカニズムを、アストロサイトの機能障害と云う視点から解析する新規システムを構築する。遺伝子異常がアストロサイトの機能に及ぼす病態意義を解析し、新規診断・治療法開発のための新たなブレイクスルーを見出すことを目的とする。

Outline of Final Research Achievements

Astrocytes are the most abundant cell type in mammalian brains. They play essential roles not only in physiological functions, but also in the neural network formation through regulating synaptogenesis and synapse elimination during the cortical development and maturation, suggesting that their functional deficits may cause neurodevelopmental disorders. Despite their potential importance, how astrocytes are involved in pathophysiology of neurodevelopmental disorders are poorly understood. In this study, we have developed a analytical battery for astrocytes. With this battery, we recapitulated haploinsufficiency conditions of RBFOX1 and NR1D1 genes in astrocytes. We then analyzed the knockdown effects of these genes on astrocytes per se and surrounding cortical neurons.

Academic Significance and Societal Importance of the Research Achievements

脳機能におけるアストロサイトの重要性が大きくクローズアップされ、その形態・機能異常が病態形成に関連する可能性も高い。しかしながら、これまで、アストロサイトの機能異常に焦点を当てた発達障害の分子病態メカニズム解析は殆どされていない。アストロサイトに着目してin vivo/in vitro解析バッテリーを構築し、発達障害の病態メカニズムを新規の観点から捉え直す点で、本企画の学術的意義は非常に大きい。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (24 results)

All 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (13 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 13 results,  Open Access: 9 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results)

  • [Int'l Joint Research] University of Genoa(イタリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Toronto Metropolitan University(カナダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] The Hebrew University of Jerusalem(イスラエル)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Expression Analyses of Cep152, a Responsible Gene Product for Autosomal Recessive Primary Microcephaly, during Mouse Brain Development2022

    • Author(s)
      Hamada Nanako、Noda Mariko、Ito Hidenori、Iwamoto Ikuko、Nagata Koh-ichi
    • Journal Title

      Developmental Neuroscience

      Volume: 44 Issue: 3 Pages: 162-170

    • DOI

      10.1159/000523922

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Variant-specific changes in RAC3 function disrupt corticogenesis in neurodevelopmental phenotypes2022

    • Author(s)
      Scala Marcello et al.
    • Journal Title

      Brain

      Volume: 145 Issue: 9 Pages: 3308-3327

    • DOI

      10.1093/brain/awac106

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impaired Function of PLEKHG2, a Rho-Guanine Nucleotide-Exchange Factor, Disrupts Corticogenesis in Neurodevelopmental Phenotypes.2022

    • Author(s)
      Nishikawa M, Ito H, Tabata H, Ueda H, Nagata KI.
    • Journal Title

      Cells

      Volume: 16 Issue: 4 Pages: 696-696

    • DOI

      10.3390/cells11040696

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gain-of-function p.F28S variant in<i>RAC3</i>disrupts neuronal differentiation, migration and axonogenesis during cortical development, leading to neurodevelopmental disorder2022

    • Author(s)
      Nishikawa Masashi、Scala Marcello、Umair Muhammad、Ito Hidenori、Waqas Ahmed、Striano Pasquale、Zara Federico、Costain Gregory、Capra Valeria、Nagata Koh-ichi
    • Journal Title

      Journal of Medical Genetics

      Volume: 60 Issue: 3 Pages: 223-232

    • DOI

      10.1136/jmedgenet-2022-108483

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Expression analyses of Rac3, a Rho family small GTPase, during mouse brain development.2022

    • Author(s)
      Nishikawa M, Ito H, Noda M, Hamada N, Tabata H, Nagata K.
    • Journal Title

      Dev Neurosci

      Volume: 44 Issue: 1 Pages: 49-58

    • DOI

      10.1159/000521168

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Physiological significance of WDR45, a responsible gene for β-propeller protein associated neurodegeneration (BPAN), in brain development2021

    • Author(s)
      Noda Mariko、Ito Hidenori、Nagata Koh-ichi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 22568-22568

    • DOI

      10.1038/s41598-021-02123-3

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The synaptic scaffolding protein CNKSR2 interacts with CYTH2 to mediate hippocampal granule cell development2021

    • Author(s)
      Ito Hidenori、Morishita Rika、Noda Mariko、Ishiguro Tomoki、Nishikawa Masashi、Nagata Koh-ichi
    • Journal Title

      Journal of Biological Chemistry

      Volume: 297 Issue: 6 Pages: 101427-101427

    • DOI

      10.1016/j.jbc.2021.101427

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Expression Analyses of Mediator Complex Subunit 13-Like: A Responsible Gene for Neurodevelopmental Disorders during Mouse Brain Development2021

    • Author(s)
      Hamada Nanako、Iwamoto Ikuko、Nishikawa Masashi、Nagata Koh-ichi
    • Journal Title

      Developmental Neuroscience

      Volume: - Issue: 1 Pages: 1-10

    • DOI

      10.1159/000515188

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Expression analyses of PLEKHG2, a Rho family-specific guanine nucleotide exchange factor, during mouse brain development2021

    • Author(s)
      Nishikawa Masashi、Ito Hidenori、Noda Mariko、Hamada Nanako、Tabata Hidenori、Nagata Koh-ichi
    • Journal Title

      Medical Molecular Morphology

      Volume: - Issue: 2 Pages: 146-155

    • DOI

      10.1007/s00795-020-00275-1

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heterotrimeric G-protein, Gi1, is involved in the regulation of proliferation, neuronal migration and dendrite morphology during cortical development in vivo.2021

    • Author(s)
      Hamada N, Iwamoto I, Kawamura N, Nagata K.
    • Journal Title

      J. Neurochem.

      Volume: 1 Issue: 4 Pages: 1-1

    • DOI

      10.1111/jnc.15205

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Biochemical and morphological characterization of SEPT1 in mouse brain2020

    • Author(s)
      Ito Hidenori、Morishita Rika、Noda Mariko、Iwamoto Ikuko、Nagata Koh-ichi
    • Journal Title

      Medical Molecular Morphology

      Volume: 53 Issue: 4 Pages: 221-228

    • DOI

      10.1007/s00795-020-00248-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neuropathophysiological significance of the c.1449T>C/p.(Tyr64Cys) mutation in the CDC42 gene responsible for Takenouchi-Kosaki syndrome2020

    • Author(s)
      Hamada Nanako、Ito Hidenori、Shibukawa Yukinao、Morishita Rika、Iwamoto Ikuko、Okamoto Nobuhiko、Nagata Koh-ichi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 529 Issue: 4 Pages: 1033-1037

    • DOI

      10.1016/j.bbrc.2020.06.104

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pogz deficiency leads to transcription dysregulation and impaired cerebellar activity underlying autism-like behavior in mice.2020

    • Author(s)
      Reut Suliman-Lavie, Ben Title, Yahel Cohen, Hamada N, Maayan Tal, Nitzan Tal, Galya Monderer- Rothkoff, Bjorg Gudmundsdottir, Kristbjorn O Gudmundsson, Jonathan R Keller, Guo-Jen Huang, Nagata K, Yosef Yarom, Sagiv Shifman.
    • Journal Title

      Nat. Commun.

      Volume: 11 Issue: 1 Pages: 5836-5836

    • DOI

      10.1038/s41467-020-19577-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Pathophysiological mechanisms in neurodevelopmental disorders caused by RAC3 small GTPase dysregulation.2022

    • Author(s)
      Nagata K
    • Organizer
      Fujita ICBS International Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 電気穿孔法を用いた神経発達障害の病態解析.2022

    • Author(s)
      浜田奈々子、伊東秀記、永田浩一
    • Organizer
      第54回日本臨床分子形態学会学術集会シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 発達障害を観て考える2021

    • Author(s)
      永田浩一
    • Organizer
      第53回日本臨床分子形態学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Role of a heterotrimeric G-protein, Gαi1, regulates neurogenesis, migration and development in cortical excitatory neurons.2020

    • Author(s)
      浜田奈々子、永田浩一
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 三量体Gタンパク質GNAI1の発達障害における病態意義2020

    • Author(s)
      永田浩一、浜田奈々子、岩本郁子、河村則子
    • Organizer
      第62回日本小児科学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Role of WDR45, the autophagy-related gene, in the development of mouse cerebral cortex2020

    • Author(s)
      野田 万理子、岩本郁子、田畑秀典、伊東秀記、永田浩一
    • Organizer
      第63回日本神経化学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] X連鎖知的障害関連分子CNK2の性状機能解析2020

    • Author(s)
      伊東秀記、森下理香、野田万理子、永田浩一
    • Organizer
      日本臨床分子形態学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 発達障害責任遺伝子 PLEKHG2 の神経組織における発現解析2020

    • Author(s)
      永田浩一、西川 将司、伊東 秀記、野田万理子、 浜田奈々子、田畑 秀典
    • Organizer
      日本臨床分子形態学会学術集会
    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2024-01-30  

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