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An in vitro approach for dynamics of unstable short tandem repeats.

Research Project

Project/Area Number 16K07457
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Genetics/Chromosome dynamics
Research InstitutionNational Hospital Organization, Kyushu Cancer Center

Principal Investigator

Oda Shinya  独立行政法人国立病院機構(九州がんセンター臨床研究センター), その他部局等, 腫瘍遺伝学研究室長 (40333372)

Project Period (FY) 2016-10-21 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsリピート配列 / DNA複製 / DNAポリメラーゼ / 複製エラー / マイクロサテライト不安定性 / ゲノム不安定性 / リピート病 / DNA修復 / ゲノム / 核酸 / 癌
Outline of Final Research Achievements

Numerous short tandem repeats are mapped throughout the eukaryotic genomes, despite being particularly prone to replication errors. Although their physiological functions are unknown, their alterations underlie neoplastic and neuromuscular diseases in humans. Molecular mechanisms of STR alterations warrant attention. A posteriori approaches to observe STR alterations occurred in vivo have thus far been attempted, which are, however, obviously partial and insufficient. This study aimed to elucidate a priori molecular factors to determine the instability and the dynamics of STRs using an in vitro DNA replication assay system. For this purpose, replicative form M13 vectors carrying various repeat sequences have been constructed and prepared.

Academic Significance and Societal Importance of the Research Achievements

真核生物ゲノムの特徴である短タンデムリピート(short tandem repeat, STR)では、DNA複製の際にエラーが頻発するため、しばしばその長さが変化する。実際に、STR変化はヒトがんや神経・筋疾患に見られるが、in vivoで生じたリピート変化を個別に観察する帰納法的研究からは、リピート変化を規定する分子要因を明らかにすることは難しい。本研究は、研究代表者の把握する範囲では、世界ではじめてin vitroアッセイを用いて、演繹的にこの問題にアプローチしたはじめての研究である。このような研究の展開により、リピート病の原因だけでなく、STRの生理機能にもアプローチできるかもしれない。

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

    (12 results)

All 2019 2018 2017 2016 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) Remarks (1 results)

  • [Journal Article] Differential genomic destabilisation in human cells with pathogenic MSH2 mutations introduced by genome editing2019

    • Author(s)
      Genki Hayashida, Seijiro Shioi, Kyoko Hidaka, Ryosuke Fujikane, Masumi Hidaka, Toshiki Tsurimoto, Teruhisa Tsuzuki, Shinya Oda, Yoshimichi Nakatsu
    • Journal Title

      Exp Cell Res

      Volume: 377 Issue: 1-2 Pages: 24-35

    • DOI

      10.1016/j.yexcr.2019.02.020

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heterochronous occurrence of microsatellite instability in multiple myeloma - an implication for a role of defective DNA mismatch repair in myelomagenesis2018

    • Author(s)
      Miyashita K, Fujii K, Suehiro Y, Taguchi K, Uike N, Yoshida MA, Oda S
    • Journal Title

      Leuk Lympohoma

      Volume: 31 Issue: 10 Pages: 1-6

    • DOI

      10.1080/10428194.2018.1427862

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A specific mode of microsatellite instability is a crucial biomarker in adult T-cell leukaemia/lymphoma patients.2017

    • Author(s)
      Miyashita K, Fujii K, Taguchi K, Shimokawa M, Yoshida MA, Abe Y, Okamura J, Oda S, Uike N
    • Journal Title

      J Cancer Res Clin Oncol

      Volume: 143 Issue: 3 Pages: 399-408

    • DOI

      10.1007/s00432-016-2294-1

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Genomic instability in MSH2-null HeLa cells with DNA polymerase delta R506H mutation introduced by CRISPR/Cas9.2019

    • Author(s)
      織田 信弥
    • Organizer
      第78回日本癌学会学術総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Repeat instability induced by a DNA polymerase delta proofreading domain mutation introduced using CRISPR/Cas9.2019

    • Author(s)
      織田 信弥
    • Organizer
      第42回日本分子生物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] CRISPR/Cas9システムを用いてリンチ症候群MSH2変異を導入したヒト細胞におけるゲノム不安定性の特異な態様2018

    • Author(s)
      織田 信弥
    • Organizer
      日本癌学会学術総会
    • Related Report
      2018 Research-status Report
  • [Presentation] ゲノム編集を用いて有害なMSH2変異を導入したヒト細胞におけるリピート配列の特異な不安定化2018

    • Author(s)
      織田 信弥
    • Organizer
      日本分子生物学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 死亡した発端者より遺伝学的検査が可能であった2017

    • Author(s)
      井手尾里美、織田信弥、松谷奈央、竹山由子
    • Organizer
      第23回日本家族性腫瘍学会学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] リンチ症候群患者に見出されるMSH2 ATPaseドメイン変異体は、ヒト細胞において顕著な不安定性を示す2017

    • Author(s)
      林田元気、中津可道、日高京子、藤兼亮輔、日高真純、織田信弥、續輝久
    • Organizer
      第76回日本癌学会学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] MSH2リンチ症候群変異を持つヒト細胞の作製とその解析2017

    • Author(s)
      林田元気、中津可道、日高京子、藤兼亮輔、日高真純、織田信弥、釣本敏樹、續輝久
    • Organizer
      第40回日本分子生物学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Establishment of DNA polymerase delta R506H mutants in MSH2-null HeLa MR cell using CRISPR/Cas9 genome editing system.2016

    • Author(s)
      Song Y, Hidaka K, Nakatsu Y, Oda S, Hayashida G, Fujikane R, Hidata M, Tsuzuki T
    • Organizer
      第39回日本分子生物学会年会
    • Place of Presentation
      横浜
    • Year and Date
      2016-11-30
    • Related Report
      2016 Research-status Report
  • [Remarks] 九州がんセンター臨床研究センター腫瘍病態研究部

    • URL

      http://www.ia-nkcc.jp/information/detail/144

    • Related Report
      2016 Research-status Report

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Published: 2016-10-24   Modified: 2021-02-19  

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