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Identification of exonic splicing enhancer sequences by analysis of dystrophin gene micromutation

Research Project

Project/Area Number 16K21524
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Pediatrics
Neurology
Research InstitutionHyogo Medical University

Principal Investigator

Shimomura Hideki  兵庫医科大学, 医学部, 講師 (30441273)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords筋ジストロフィー / スプライシング / スプライシング異常 / アンチセンスオリゴヌクレオチド / エクソンスキッピング / Duchenne型筋ジストロフィー
Outline of Final Research Achievements

Progressive muscular dystrophy mainly develops due to genetic abnormality which result in decrease or lack muscle component. In cases of muscular dystrophy for which deletion / duplication mutations were not identified by the MLPA, we identified deletion or point mutations with a small number of nucleotides using direct nucleotide sequence or next-generation sequencer, and analyzed the splicing type in these cases. As a result, we were able to clarify the effect of small mutations on splicing. In analysis of the type 6 collagen gene, we found that two types of mRNA were produced by having two closely mutations on the same allele.

Academic Significance and Societal Importance of the Research Achievements

本研究においては進行性筋ジストロフィーにおいてスプライシングに影響を及ぼす微小変異を明らかにした。今回の解析ではエクソン内配列の変異によりスプライシング異常を生じた症例は認められなかったため、ESEの同定は困難であったが、潜在的スプライシングサイトの活性化に関する知見が得られた。ESE制御とともに、潜在的スプライシングサイト制御による治療法の可能性が考えられた。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2019 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results)

  • [Journal Article] Two closely spaced mutations in cis result in Ullrich congenital muscular dystrophy2019

    • Author(s)
      Shimomura Hideki、Lee Tomoko、Tanaka Yasuhiko、Awano Hiroyuki、Itoh Kyoko、Nishino Ichizo、Takeshima Yasuhiro
    • Journal Title

      Human Genome Variation

      Volume: 6 Issue: 1 Pages: 21-21

    • DOI

      10.1038/s41439-019-0052-z

    • NAID

      120006644105

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 片側アレルに近接した2つの遺伝子異常を認めた常染色体優性Ullrich型先天性筋ジストロフィーの1例2017

    • Author(s)
      下村 英毅, 李 知子, 松本 真明, 粟野 宏之, 伊東 恭子, 西野 一三, 竹島 泰弘.
    • Organizer
      第59回日本小児神経学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Duchenne型筋ジストロフィーに対するENAアンチセンスオリゴヌクレオチド(AO85)投与の効果2017

    • Author(s)
      李 知子, 下村 英毅, 粟野 宏之, 飯島 一誠, 荻 寛志, 伊東 恭子, 松尾 雅文, 竹島 泰弘.
    • Organizer
      第59回日本小児神経学会総会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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