• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Pathophysiological mechanisms of neurodevelopmental disorders caused by abnormalities of cell cycle-regulatory genes

Research Project

Project/Area Number 19H03629
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
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) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
KeywordsCEP152 / 遺伝性小頭症 / モデルマウス / 細胞周期 / 遺伝子異常 / 発達障害 / 小頭症 / 知的障害 / 大脳皮質発生 / 遺伝子変異
Outline of Research at the Start

期間内に、私どものグループで独自に構築した“発達障害解析バッテリー”を用いて、1)遺伝性小頭症(MCPH)の大脳皮質低形成、2)MCPHに随伴する知的障害(ID)、3)細胞周期制御遺伝子(CCRG)の異常を原因とするものの小頭症を伴わない発達障害(ID、自閉症スペクトラム)、に共通する病態メカニズム、および、各病態に特異的な分子病態メカニズムの実体を解明する。

Outline of Final Research Achievements

Centrosomal protein 152 (CEP152) regulates the centriole duplication/shape and cell polarity during the cell cycle. CEP152 gene abnormalities are responsible for autosomal recessive primary microcephaly 9 (MCPH9). We here identified two novel de novo compound heterozygous CEP152 variants, c.314G>A/p.(Trp105*) and c.2689A>T/p.(Lys897*), in a patient. While the p.Trp105* variant underwent protein degradation, the p.Lys897* variant was abnormally distributed in cytoplasm of neuronal cells. We then developed a mouse model harboring the variants equivalent to the human condition. The mice displayed abnormal centrosome maturation and increased apoptosis in cortical neurons. Electrophysiological analyses revealed abnormal synaptic properties in cortical neurons in the mice. The CEP152 variants may be associated not only with defects in neural proliferation, but also with impaired synaptic function. This study should highlight a connection between centrosomal biology and synaptic network.

Academic Significance and Societal Importance of the Research Achievements

本研究では、これまでに神経細胞増殖障害によって発症するとされてきた遺伝性小頭症の病態形成メカニズムに新たな視点を見出した点に学術的意義がある。すなわち、中心体蛋白質CEP152の遺伝子異常が、神経細胞の増殖障害(中心体固有の機能障害)のみでなく、分化後の神経細胞のシナプス機能にも障害を引き起こすことを見出した。この成果は、CEP152に従来想定されていなかった新規機能があることを示している。中心体生物学とシナプスネットワーク形成の相互連間を明らかにして点でも本研究の意義は大きいと考えている。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (21 results)

All 2022 2021 2019 Other

All Int'l Joint Research (3 results) Journal Article (13 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 13 results,  Open Access: 9 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

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

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Toronto Metropolitan University(カナダ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] The Hebrew University of Jerusalem(イスラエル)

    • Related Report
      2021 Annual Research 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
      2021 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
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Expression Analyses of Polo-Like Kinase 4, a Gene Product Responsible for Autosomal Recessive Microcephaly and Seckel Syndrome, during Mouse Brain Development2022

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

      Developmental Neuroscience

      Volume: 44 Issue: 6 Pages: 643-650

    • DOI

      10.1159/000526914

    • Related Report
      2021 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
      2021 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 Annual Research Report 2020 Annual Research 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
      2020 Annual Research 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
      2020 Annual Research 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
      2020 Annual Research 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
      2020 Annual Research 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 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Per3, a circadian clock gene, in embryonic development of mouse cerebral cortex.?2019

    • Author(s)
      Noda M, Iwamoto I, Tabata H, Yamagata T, Ito H, Nagata K.
    • Journal Title

      Sci. Rep.

      Volume: 9 Issue: 1 Pages: 5874-5874

    • DOI

      10.1038/s41598-019-42390-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Expression analyses of POGZ, a responsible gene for neurodevelopmental disorders, during mouse brain development.2019

    • Author(s)
      Ibaraki K, Hamada N, Iwamoto I, Ito H, Kawamura N, Morishita R, Tabata H, Nagata KI.
    • Journal Title

      Dev Neurosci.

      Volume: 41 Issue: 1-2 Pages: 139-148

    • DOI

      10.1159/000502128

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatiotemporally Dependent Vascularization Is Differently Utilized among Neural Progenitor Subtypes during Neocortical Development2019

    • Author(s)
      Komabayashi-Suzuki Mariko、Yamanishi Emiko、Watanabe Chisato、Okamura Megumi、Tabata Hidenori、Iwai Ryota、Ajioka Itsuki、Matsushita Jun、Kidoya Hiroyasu、Takakura Nobuyuki、Okamoto Tadashi、Kinoshita Kazuo、Ichihashi Masamitsu、Nagata Koh-ichi、Ema Masatsugu、Mizutani Ken-ichi
    • Journal Title

      Cell Reports

      Volume: 29 Issue: 5 Pages: 1113-1129

    • DOI

      10.1016/j.celrep.2019.09.048

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Pathophysiological mechanisms in neurodevelopmental disorders caused by RAC3 small GTPase dysregulation.2022

    • Author(s)
      Nagata K
    • Organizer
      Fujita ICBS International Symposium
    • Related Report
      2021 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
      2021 Annual Research Report
    • Invited
  • [Presentation] 小頭症/Seckel症候群の原因遺伝子CEP152の新規遺伝子変異同定と病態形成メカニズムの解明2021

    • Author(s)
      浜田奈々子、西條琢磨、西川将司、上原朋子、武内俊樹、小崎健次郎、水野誠司、永田浩一
    • Organizer
      第44回日本小児遺伝学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 発達障害責任遺伝子MED13Lの神経発達における役割と遺伝子変異がもたらす病態機能解析2021

    • Author(s)
      浜田奈々子、永田浩一
    • Organizer
      第53回日本臨床分子形態学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Essential role of MED13L, a responsible gene for autism spectrum disorders, in brain development2021

    • Author(s)
      浜田奈々子、永田浩一
    • Organizer
      第54回日本神経化学会学術大会
    • Related Report
      2020 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi