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

Pathophysiological analyses of astrocytes using a novel murine model of Alexander disease

Research Project

Project/Area Number 18H02785
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 InstitutionOsaka Medical and Pharmaceutical University

Principal Investigator

Kondo Yoichi  大阪医科薬科大学, 医学部, 教授 (40284062)

Co-Investigator(Kenkyū-buntansha) 元野 誠  大阪医科薬科大学, 医学部, 助教 (30619622)
濱岡 仁美 (黒瀬仁美)  大阪医科薬科大学, 医学部, 講師 (80545608)
井上 順治  大阪医科薬科大学, 医学部, 助教 (20814859)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2021: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywordsアレキサンダー病 / アストロサイト / 疾患特異的iPS細胞 / グリア前駆細胞 / ヒトグリア細胞キメラマウス / 脱髄 / iPS細胞 / GFAP / 白質ジストロフィー
Outline of Final Research Achievements

Alexander disease (AxD) is a fatal leukodystrophy caused by mutations in the gene for glial fibrillary acidic protein (GFAP),which is an intermediate filament of astrocytes. Currently, no faithful animal models are available for AxD. Therefore we considered it important to use human astrocytes in this study, and aimed to generate human glial chimeric mice using AxD patient-derived iPS cells to serve as an murine model of AxD model. We were able to create mice whose brain contained mature human astrocytes both in gray and white matter. However, such engrafted astrocytes did not demonstrate Rosenthal fibers, which is the pathological hallmark of AxD. Further studies will be needed to induce RF generation in these mice to help elucidate the pathophysiology of AxD.

Academic Significance and Societal Importance of the Research Achievements

アレキサンダー病は白質傷害を伴って主に小児を冒す神経難病である。現在、存在しない適切な動物モデルをマウスで作製することにより、病態の理解を進め、さらには治療法開発の端緒とする意味がある。またアストロサイトの疾患でありながら、オリゴデンドロサイト/髄鞘に傷害を及ぼすアレキサンダー病を足がかりとして、アストロサイト自身の機能および、アストロサイト-オリゴデンドロサイト相互連関を明らかにするという科学的意義も強調したい。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (5 results)

All 2019

All Journal Article (1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] アレキサンダー病の病態機序解明に向けて2019

    • Author(s)
      近藤洋一
    • Journal Title

      大阪医科大学雑誌

      Volume: 78 Pages: 104-107

    • NAID

      40022161997

    • Related Report
      2019 Annual Research Report
  • [Presentation] Histopathological studies on myelin disorders using human glial chimeric mice2019

    • Author(s)
      Yoichi Kondo
    • Organizer
      The 13th Japan-China Joint Seminar on Histochemistry and Cytochemistry
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] アレキサンダー病患者由来iPS細胞株への一塩基編集技術の導入2019

    • Author(s)
      田中義久、近藤洋一
    • 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] 新型ヒトiPS細胞を用いた特定の脳領域の高効率な分化誘導法の開発2019

    • Author(s)
      元野誠、加藤英政、近藤洋一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 新型ヒトiPS細胞(T-iPS細胞)を用いたヒト分化多能性の再検証2019

    • Author(s)
      加藤英政、元野誠、徳澤佳美、齋藤彩圭、和田俊輔、加藤知輝、濱田遼、益本凌汰、清澤秀孔、近藤洋一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi