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Research on the Development of Gene Therapy for Neurological Diseases Using AAV Vectors and Small RNAs

Research Project

Project/Area Number 18KK0465
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))

Allocation TypeMulti-year Fund
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionJichi Medical University

Principal Investigator

Kojima Karin  自治医科大学, 医学部, 准教授 (00468331)

Project Period (FY) 2019 – 2023
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
KeywordsAAV / 小児神経 / miRNA / small RNA / MECP2 / microRNA / 発現調整 / 遺伝子治療 / AAVベクター / 大脳皮質オルガノイド / micro RNA
Outline of Final Research Achievements

We are developing new gene therapy that can regulate gene expression by combining small RNAs and AAV vectors. As a gene therapy for Rett syndrome and MECP2 duplication syndrome, we are developing a vector utilizing the CRISPR-dead Cas system with AAV. Additionally, in research on the involvement of microRNA in the pathogenesis of pediatric neurological diseases, we investigated the pathogenesis of neural tube closure defects during the fetal period in microRNA302-KO mice and analyzed the impact of microRNAs on the carcinogenesis process in gliomas.

Academic Significance and Societal Importance of the Research Achievements

AAVベクターを用いた遺伝性神経疾患に対する遺伝子置き換え療法としての遺伝子治療は世界的に進展している。しかし、神経細胞への導入効率が低く、および導入遺伝子の発現量調節ができない点が課題である。遺伝子発現調節を可能とする新たな遺伝子治療法の開発は、発現量が厳密にコントロールされている遺伝子疾患の治療に有用である。
microRNA302ノックアウトマウスは神経管閉鎖障害のモデルであり、神経管閉鎖障害を持つ胚のSingle cell RNA解析で解糖系遺伝子が顕著に増加し、質量分析では解糖代謝物が増加していた。妊娠中の糖代謝と神経管閉鎖との関連を示唆する結果であった。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 2020 2019

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

  • [Int'l Joint Research] Center for Cell and Gene Therapy, Baylor College of Medicine(米国)2019

    • Year and Date
      2019-04-01
    • Related Report
      2023 Annual Research Report
  • [Journal Article] The ATRX splicing variant c.21-1G>A is asymptomatic2022

    • Author(s)
      Kojima Karin、Wada Takahito、Shimbo Hiroko、Ikeda Takahiro、Jimbo Eriko F.、Saitsu Hirotomo、Matsumoto Naomichi、Yamagata Takanori
    • Journal Title

      Human Genome Variation

      Volume: 9 Issue: 1 Pages: 33-33

    • DOI

      10.1038/s41439-022-00212-x

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 【小児遺伝子疾患事典】代謝疾患 DDC(関連疾患:芳香族L-アミノ酸脱炭酸酵素<AADC>欠損症).2021

    • Author(s)
      小島華林
    • Journal Title

      小児科診療

      Volume: 84 Pages: 1520-1523

    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Journal Article] 芳香族Lアミノ酸脱炭酸酵素(AADC)欠損症診断のための乾燥血液濾紙によるスクリーニング検査法と血漿AADC酵素活性測定系の開発.2021

    • Author(s)
      渡邉知佳, 小島華林, 黒川愛恵・他
    • Journal Title

      日本マススクリーニング学会誌

      Volume: 31 Pages: 27-35

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] MiR-302 Regulates Glycolysis to Control Cell-Cycle during Neural Tube Closure2020

    • Author(s)
      Keuls Rachel A.、Kojima Karin、Lozzi Brittney、Steele John W.、Chen Qiuying、Gross Steven S.、 Finnell Richard H.、Parchem Ronald J.
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 20 Pages: 7534-7534

    • DOI

      10.3390/ijms21207534

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] AADC欠損症遺伝子治療の長期効果2022

    • Author(s)
      小島 華林、宮内 彰彦、池田 尚広、黒川 愛恵、大貫 良幸、中嶋 剛、平井 真洋、村松 一洋、小坂 仁、村松 慎一、山形 崇倫
    • Organizer
      第64回日本小児神経学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] Gene therapy for aromatic L-amino acid decarboxylase deficiency in Japan improved the motor and mental function of patients with various phenotypes.2022

    • Author(s)
      Karin Kojima
    • Organizer
      12th International Collaborative Forum of Human Gene Therapy for Genetic Diseases
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2019-02-06   Modified: 2025-01-30  

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