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A disease therapy by read-through of nonsense mutations via artificial nucleobase modification

Research Project

Project/Area Number 18K19288
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
Research InstitutionJapan Advanced Institute of Science and Technology

Principal Investigator

Tsukahara Toshifumi  北陸先端科学技術大学院大学, 先端科学技術研究科, 教授 (60207339)

Co-Investigator(Kenkyū-buntansha) 盛 真友  北陸先端科学技術大学院大学, 先端科学技術研究科, 研究員 (90466772)
Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords修飾塩基 / リードスルー / 遺伝コード修復 / 終止コドン / 無細胞翻訳系 / 合成RNA / IRES / ナンセンス変異 / 修飾酵素 / guide-RNA
Outline of Final Research Achievements

Translation read-through methods have been studied for the treatment of nonsense mutation-caused diseases, but the conventional methods read-through to the original termination codons and add extra C-terminus to the proteins. In this study, we examined whether it is possible to induce read-through by chemically modifying nucleobases of premature termination codons caused by point mutations, and searched for modified nucleobases which induce read-through with high efficiency. In order to efficiently translate mRNAs containing modified bases, we have established a system to verify the translation read-through by modified bases by adding SD sequence or IRES to the upstream of the synthetic RNA. We also found that readthroughs were also generated by 5-methyl U and 5-fluoro U.

Academic Significance and Societal Importance of the Research Achievements

本研究によって修飾塩基を含んだ完全合成RNAから無細胞翻訳系で高効率にタンパク質を合成するシステムが構築され、翻訳リードスルーを誘発する修飾塩基の検索が容易となった。また、新たに5-methyl Uや5-fluoro Uによっても翻訳リードスルー誘発が可能であることが示された。この結果は他の修飾塩基によっても翻訳リードスルーが可能であることを示唆する。既に様々な核酸塩基修飾法が知られていることから、高い翻訳リードスルー効率の修飾塩基が検索出来れば、細胞内の変異したRNAを修飾することによる翻訳リードスルーの誘発が可能となり、多くのナンセンス変異を原因とする遺伝性疾患の治療が可能となる。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (16 results)

All 2020 2019 2018

All Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] The m6A Methyltransferase METTL3 Contributes to Transforming Growth Factor-beta-induced Epithelial-Mesenchymal Transition of Lung Cancer Cells Through the Regulation of JUNB2020

    • Author(s)
      Wanna-udom Sasithorn、Terashima Minoru、Hanbing Lyu、Ishimura Akihiko、Takahisa Takino、Matomo Sakari、Toshifumi Tsukahara、Suzuki Takeshi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 524 Issue: 1 Pages: 150-155

    • DOI

      10.1016/j.bbrc.2020.01.042

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analysis of tissue-specific RNA editing events of genes involved in RNA editing in Arabidopsis thaliana2019

    • Author(s)
      Umme Qulsum, Md. Thoufic Anam Azad, Toshifumi Tsukahara
    • Journal Title

      Jornal of Plant Biology

      Volume: 62 Issue: 5 Pages: 351-358

    • DOI

      10.1007/s12374-018-0452-5

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparative Activity of Adenosine Deaminase Acting on RNA (ADARs) Isoforms for Correction of Genetic Code in Gene Therapy,2019

    • Author(s)
      Md. Thoufic Anam Azad, Umme Qulsum, Toshifumi Tsukahara
    • Journal Title

      Current Gene Therapy

      Volume: 19 Issue: 1 Pages: 31-39

    • DOI

      10.2174/1566523218666181114122116

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Genetic code restoration by artificial RNA editing of Ochre stop codon with ADAR1 deaminase2019

    • Author(s)
      Sonali Bhakta, Md Thoufic Anam Azad, Toshifumi Tsukahara
    • Journal Title

      Protein Engneering , Design and Selection

      Volume: -

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tissue-specific alternative splicing of pentatricopeptide repeat (PPR) family genes in <i>Arabidopsis thaliana </i>2018

    • Author(s)
      Umme Qulsum and Toshifumi Tsukahara,
    • Journal Title

      BioScience Trends

      Volume: 12 Issue: 6 Pages: 569-579

    • DOI

      10.5582/bst.2018.01178

    • NAID

      130007575204

    • ISSN
      1881-7815, 1881-7823
    • Year and Date
      2018-12-31
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genotyping of single nucleotide polymorphisms using the SNP-RFLP method2018

    • Author(s)
      Saifullah and Toshifumi Tsukahara
    • Journal Title

      BioScience Trends

      Volume: 12 Issue: 3 Pages: 240-246

    • DOI

      10.5582/bst.2018.01102

    • NAID

      130007405694

    • ISSN
      1881-7815, 1881-7823
    • Year and Date
      2018-06-30
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Single nucleotide recognition using a probes-on-carrier DNA chip.2018

    • Author(s)
      Saifullah, Satoshi Fuke, Hiroshi Nagasawa and Toshifumi Tsukahara
    • Journal Title

      BioTechniques

      Volume: 66 Issue: 2 Pages: 73-78

    • DOI

      10.2144/btn-2018-0088

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Genetic Code Rest oration by Using Artificial RNA Editing for G to A mutated mRNAs2019

    • Author(s)
      Toshifumi Tsukahara, Sonali Bhakta, Md. Thoufic Anam Azad
    • Organizer
      World Congress of Molecular & Cell Biology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Artificial RNA Editing in (BFP) Blue Fluorescence Protein (Derivative of GFP) by Using APOBEC1 Deaminase for Restoration of Genetic Code2019

    • Author(s)
      Sonali Bhakta, Md. Thoufic Anam Azad, Toshifumi Tsukahara,
    • Organizer
      World Congress of Molecular & Cell Biology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of CRISPR-Cas13 machinery to disease treatment2019

    • Author(s)
      Saifullah, Matomo Sakari, Toshifumi Tsukahara
    • Organizer
      日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Genetic code restoration by using APOBEC1 artificial cytidine deaminase2019

    • Author(s)
      Sonali Bhakta and Toshifumi Tsukahara
    • Organizer
      日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Investigation of tissue-specific alternative splicing of Organelle RNA Recognition Motif(ORRM) family genes in Arabidopsis thaliana2019

    • Author(s)
      John MW Munene and Toshifumi Tsukahara
    • Organizer
      日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] RNAメチル基転移酵素METTL3の転写共役機構2019

    • Author(s)
      盛 真友、塚原 俊文
    • Organizer
      Hokuriku RNA Club 2019
    • Related Report
      2018 Research-status Report
  • [Presentation] Artificial RNA editing enzymes for RNA restoration in vivo2018

    • Author(s)
      Toshifumi Tsukahara, Md Thoufic Anam Azad, Sonalo Bhakta, Matomo Sakari
    • Organizer
      Malaysia-Japan Joint International Conference 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Site-Directed RNA Editing of Mutated RNAs by Artificial Enzymes2018

    • Author(s)
      Toshifumi Tsukahara, Md Thoufic Anam Azad, Sonalo Bhakta, Matomo Sakari
    • Organizer
      BIT's 9th World Gene Convention-2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Patent(Industrial Property Rights)] タンパク質を生合成させる方法および未成熟終止コドンの修飾方法2019

    • Inventor(s)
      塚原 俊文、盛 真友、田中 龍太
    • Industrial Property Rights Holder
      北陸先端科学技術大学院大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-018379
    • Filing Date
      2019
    • Related Report
      2018 Research-status Report

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Published: 2018-07-25   Modified: 2021-02-19  

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