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Development of DMD exon 3-9 skipping therapy using iPSc

Research Project

Project/Area Number 18H02577
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 47040:Pharmacology-related
Research InstitutionShinshu University

Principal Investigator

Nakamura Akinori  信州大学, 医学部, 特任教授 (10303471)

Co-Investigator(Kenkyū-buntansha) 柴 直子  信州大学, 医学部, 助教 (00639289)
柴 祐司  信州大学, 学術研究院医学系, 教授 (70613503)
青木 吉嗣  国立研究開発法人国立精神・神経医療研究センター, 神経研究所 遺伝子疾患治療研究部, 部長 (80534172)
宮崎 大吾  信州大学, 医学部附属病院, 講師(特定雇用) (80596370)
武田 伸一  国立研究開発法人国立精神・神経医療研究センター, その他部局等, 顧問 (90171644)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywordsデュシェンヌ型筋ジストロフィー / ベッカー型筋ジストロフィー / DMD遺伝子 / エクソン・スキップ治療 / アンチセンス薬 / ゲノム編集 / iPS細胞 / Duchenne型筋ジストロフィー / アンチセンス核酸 / エクソンスキップ治療
Outline of Final Research Achievements

Duchenne muscular dystrophy (DMD) is a lethal muscular disease caused by mutations in the DMD gene. In recent years, the development of exon skipping therapy for converting DMD to mild Becker muscular dystrophy (BMD) has been progressing. Since the DMD exon 3-9 deletion is asymptomatic and about 10% of DMDs have mutations in exon 3-9 region, we investigated using iPS cells for the development of exon 3-9 skipping therapy. Myocardial cells were induced to differentiate from exon 3-7 (DMD type) and 3-9 deleted (asymptomatic type) iPS cells prepared by gene editing. Abnormal expressions of genes of maturation factors and myocardial loading markers were improved in exon 3-7-deleted myocardium compared with exon 3-9 deleted myocardium.

Academic Significance and Societal Importance of the Research Achievements

本研究では多くのジストロフィン異常症患者を無症候性にまで改善させることが可能なエクソン3-9スキップ治療の基盤研究を行うことである。エクソン・スキップ治療はアンチセンス核酸やゲノム編集を用いて行うことができるが、特に心筋細胞についてはエクソン・スキップ治療後に細胞の機能や遺伝子発現がどの程度正常化するかについての検証はほとんどない。そこで、健常男性iPS細胞からゲノム編集を用いてDMD型と無症候性型のiPS細胞作製し、さらに各細胞から分化誘導した心筋細胞について分子レベルにおける有効性を検証した成果である。エクソン3-9スキップ治療の臨床応用に向けた基盤となるデータを示すことができた。

Report

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

    (16 results)

All 2021 2020 2019 2018

All Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results) Book (2 results)

  • [Journal Article] Amelioration of intracellular Ca2+ regulation by exon-45 skipping in Duchenne muscular dystrophy-induced pluripotent stem cell-derived cardiomyocytes.2019

    • Author(s)
      Sato M, Shiba N, Miyazaki D, Shiba Y, Echigoya Y, Yokota T, Takizawa H, Aoki Y, Takeda S, Nakamura A.
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 520 Issue: 1 Pages: 179-185

    • DOI

      10.1016/j.bbrc.2019.09.095

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Application of Urine-Derived Stem Cells to Cellular Modeling in Neuromuscular and Neurodegenerative Diseases2019

    • Author(s)
      Sato Mitsuto、Takizawa Hotake、Nakamura Akinori、Turner Bradley J.、Shabanpoor Fazel、Aoki Yoshitsugu
    • Journal Title

      Frontiers in Molecular Neuroscience

      Volume: 12 Pages: 1-9

    • DOI

      10.3389/fnmol.2019.00297

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mutation-Based Therapeutic Strategies for Duchenne Muscular Dystrophy: From Genetic Diagnosis to Therapy2019

    • Author(s)
      Nakamura Akinori
    • Journal Title

      Journal of Personalized Medicine

      Volume: 9 Issue: 1 Pages: 16-16

    • DOI

      10.3390/jpm9010016

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multiple Exon Skipping in the Duchenne Muscular Dystrophy Hot Spots: Prospects and Challenges2018

    • Author(s)
      Echigoya Yusuke、Lim Kenji Rowel Q.、Nakamura Akinori、Yokota Toshifumi
    • Journal Title

      Journal of Personalized Medicine

      Volume: 8 Issue: 4 Pages: 41-41

    • DOI

      10.3390/jpm8040041

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] BMDの自然歴調査研究の成果2021

    • Author(s)
      中村昭則
    • Organizer
      令和2年度筋ジストロフィー合同班会議
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] DMDに対するエクソン・スキップ治療開発には自然歴の理解が重要である2020

    • Author(s)
      中村昭則
    • Organizer
      第74回国立病院総合医学会シンポジウム15「筋ジストロフィー治療開発の最先端、次の10年に何が起こるか」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] BMDの自然歴調査研究の結果(第一報)2020

    • Author(s)
      中村昭則
    • Organizer
      精神・神経疾患研究開発費「筋ジストロフィーの臨床開発推進、ならびにエビデンス構築を目指した研究」班 令和2年度班会議
    • Related Report
      2020 Annual Research Report
  • [Presentation] Development of DMD exon 3-9 skip therapy and examination of the direction of exon skip therapy from the viewpoint of natural history of BMD2020

    • Author(s)
      中村昭則
    • Organizer
      精神・神経疾患研究開発費「疾患モデル動物を基板とした筋ジストロフィーの新しい治療法開発」班 令和2年度班会議
    • Related Report
      2020 Annual Research Report
  • [Presentation] Natural history study for preventative medicine for cardiac involvement of Becker muscular dystrophy.2019

    • Author(s)
      Nakamura A.
    • Organizer
      60th Annual Meeting of The Japanese Society of Neurology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Gene expression in cardiomyocytes from DMD with exon 46-55 deletion after exon 45 skipping therapy.2019

    • Author(s)
      Miyazaki D., Sato M., Shiba N., Shiba Y., Echigoya Y., Yokota T., Aoki Y., Takeda S., Nakamura A.
    • Organizer
      60th Annual Meeting of The Japanese Society of Neurology
    • Related Report
      2019 Annual Research Report
  • [Presentation] DMD遺伝子exon46-55欠失変異を持つDMD患者iPSC由来心筋細胞に対するexon 45 skip治療に関する研究2019

    • Author(s)
      佐藤充人、宮崎大吾、柴直子、柴祐司、越後谷裕介、横田俊文、青木吉嗣、武田伸一、中村昭則
    • Organizer
      日本筋学会第5回学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] DMD患者由来心筋細胞における分化・再生関連遺伝子の発現低下と心筋障害への影響に関する研究2019

    • Author(s)
      宮崎大吾、柴直子、佐藤充人、柴祐司、越後谷裕介、横田俊文、溝部吉高、青木吉嗣、武田伸一、中村昭則
    • Organizer
      第14回筋ジストロフィー治療研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ベッカー型筋ジストロフィーの自然歴調査研究―先制医療に向けてー2019

    • Author(s)
      中村昭則
    • Organizer
      第6回筋ジストロフィー医療研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 筋ジストロフィーの最新治療2019

    • Author(s)
      中村昭則
    • Organizer
      第1回長野県筋ジストロフィー市民公開講座
    • Related Report
      2019 Annual Research Report
  • [Book] Progress in Medicine2020

    • Author(s)
      中村昭則
    • Total Pages
      7
    • Publisher
      ライフ・サイエンス
    • ISBN
      9784898017197
    • Related Report
      2020 Annual Research Report
  • [Book] BIO Clinica 慢性炎症と疾患2020

    • Author(s)
      中村昭則
    • Total Pages
      6
    • Publisher
      北隆館
    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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