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Elucidation of off-target effects mechanisms of action using anti-CRISPR molecules for genome editing safety

Research Project

Project/Area Number 19H02827
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 37010:Bio-related chemistry
Research InstitutionHiroshima University

Principal Investigator

Nomura Wataru  広島大学, 医系科学研究科(薬), 教授 (80463909)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywordsゲノム編集 / CRISPR-Cas / アンチクリスパー / オフターゲット作用 / タンパク質間相互作用 / 細胞周期
Outline of Research at the Start

ゲノム編集技術、CRISPR-Casシステムでは医療・育種など安全性が重要になる分野ではオフターゲット作用が懸念される。本課題ではCas9を阻害するAnti-CRISPRと細胞周期依存的に発現量が変化するCdt1を組み合わせた場合に、より正確性の高いDNA修復機構であるHR/HDRの効率が向上し、オフターゲット作用が劇的に抑制される新規手法の発見を基に、その動作原理の正確な解明とシステムの適応範囲の拡張を目的とした。細胞周期をヒントに修復関連タンパク質の作用とリンクさせ、作用メカニズムを明らかにする。また、新規カウンター分子を見出し、普遍的なオフターゲット作用抑制技術として展開する。

Outline of Final Research Achievements

Regarding the cell cycle-dependent genome editing method that enhances the accuracy and safety of genome editing technology, we succeeded in observing the interaction timing of anti-CRISPR and Cas9 in cells using transcriptional activation by dCas9-VPR. The results also showed that accurate genome editing can be performed on multiple target genes, and that a wide range of applications can be expected. We also examined the use of Geminin, which shows different expression timing from Cdt1, and the usefulness of Cdt1 was once again confirmed. But we also obtained suggestions on how to use Geminin in future applications. We also examined the in vivo application of cell cycle-dependent genome editing by incorporating SaCas9, which can be carried by adeno-associated viruses.

Academic Significance and Societal Importance of the Research Achievements

オフターゲット作用の低減に関する研究は国外のグループによる開発競争が激化しており、特に安全面が重要となる医療分野、育種・品種改良分野での応用においては非常に重要な要素技術になる。今回の成果で、anti-CRISPRを利用したオフターゲット作用の抑制について、細胞内でのCas9との相互作用メカニズムを明らかできたことで、さらに正確性の高いゲノム編集法へと改良できる可能性が示された。anti-CRISPRの医療や産業への応用は比較的進んでいないため、正確性の高いゲノム編集法のin vivoなどへの応用だけでなく、新しい活用方法にもつながる成果が得られたと考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (18 results)

All 2022 2021 2020 2019 Other

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 7 results) Remarks (1 results)

  • [Journal Article] Molecular Switch Engineering for Precise Genome Editing2021

    • Author(s)
      Daisuke Matsumoto, Wataru Nomura
    • Journal Title

      Bioconjugate Chemistry

      Volume: 32 Issue: 4 Pages: 639-648

    • DOI

      10.1021/acs.bioconjchem.1c00088

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fluorescence Resonance Energy Transfer-based Screening for Protein Kinase C Ligands Using 6-methoxynaphthalene-labeled 1,2-diacylglycerol-lactones2021

    • Author(s)
      Kohei Tsuji, Takahiro Ishii, Takuya Kobayakawa, Nami Ohashi, Wataru Nomura, Hirokazu Tamamura
    • Journal Title

      Organic & Biomolecular Chemistry

      Volume: 19 Issue: 38 Pages: 8264-8271

    • DOI

      10.1039/d1ob00814e

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Discovery of a Macropinocytosis‐Inducing Peptide Potentiated by Medium‐Mediated Intramolecular Disulfide Formation2021

    • Author(s)
      Jan Vincent V. Arafiles, Hisaaki Hirose, Yusuke Hirai, Masashi Kuriyama, Maxwell M. Sakyiamah, Wataru Nomura, Kazuhiro Sonomura, Miki Imanishi, Akira Otaka, Hirokazu Tamamura, Shiroh Futaki
    • Journal Title

      Angewandte Chemie, International Edition

      Volume: 60 Issue: 21 Pages: 2-11

    • DOI

      10.1002/anie.202016754

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Cell Cycle-dependent CRISPR-Cas9 Activation System Based on an Anti-CRISPR Protein Shows Improved Genome Editing Accuracy2020

    • Author(s)
      Daisuke Matsumoto, Hirokazu Tamamura, Wataru Nomura
    • Journal Title

      Communications Biology

      Volume: 3 Issue: 1 Pages: 601-601

    • DOI

      10.1038/s42003-020-01340-2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis of Hydrophilic Caged DAG-lactone for Chemical Biology Applications2020

    • Author(s)
      Takuya Kobayakawa, Hikaru Takano, Takahiro Ishii, Kohei Tsuji, Nami Ohashi, Wataru Nomura, Toshiaki Furuta, Hirokazu Tamamura
    • Journal Title

      Organic & Biomolecular Chemistry

      Volume: 18 Issue: 22 Pages: 4217-4223

    • DOI

      10.1039/d0ob00807a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] TALEN-Based Chemically Inducible, Dimerization-Dependent, Sequence-Specific Nucleases2020

    • Author(s)
      Daisuke Matsumoto, Hirokazu Tamamura, Wataru Nomura
    • Journal Title

      Biochemistry

      Volume: 59 Issue: 2 Pages: 197-204

    • DOI

      10.1021/acs.biochem.9b00798

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a NanoBRET-Based Sensitive Screening Method for CXCR4 Ligands2019

    • Author(s)
      Sakyiamah M. Maxwell, Wataru Nomura, Takuya Kobayakawa, Hirokazu Tamamura
    • Journal Title

      Bioconjugate Chemistry

      Volume: 30 Issue: 5 Pages: 1442-1450

    • DOI

      10.1021/acs.bioconjchem.9b00182

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dimeric C34 derivatives linked through disulfide bridges as new HIV-1 fusion inhibitors.2019

    • Author(s)
      Kobayakawa, T., K. Ebihara, Y. Honda, M. Fujino, W. Nomura, N. Yamamoto, T. Murakami, and H. Tamamura
    • Journal Title

      Chembiochem.

      Volume: なし Issue: 16 Pages: 2101-2108

    • DOI

      10.1002/cbic.201900187

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] CRISPRaを用いた自律制御型ゲノム編集におけるAnti-CRISPR作用の解析2022

    • Author(s)
      岸 果苗、濁川 清美、長谷川 有希、松本 大亮、野村 渉
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アミノ酸のつながったモノとゲノムを眺めて2021

    • Author(s)
      野村 渉
    • Organizer
      第53回若手ペプチド勉強会 特別講演
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 機能性ドメインのゲノム編集への応用2021

    • Author(s)
      野村 渉
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] CRISPR-Cas/TALEN-based tools for precision genome editing and gene regulation2021

    • Author(s)
      Wataru Nomura
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Endogenous Protein Expression Imaging by Fluorogenic ZIP Tag-probe System2020

    • Author(s)
      Wataru Nomura, Takumi Kamimura, Takuya Kobayakawa, Hirokazu Tamamura
    • Organizer
      第57回ペプチド討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ノーベル賞解説講演・”ゲノム編集”その概念と技術革命2020

    • Author(s)
      野村 渉
    • Organizer
      第10回CSJ化学フェスタ
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] テイラーメードタンパク質による精密、安全なゲノム編集・機能制御技術2020

    • Author(s)
      野村 渉
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Development of CRISPR-Cas/TALEN-based tools for precision genome editing and gene regulation.2020

    • Author(s)
      Wataru Nomura
    • Organizer
      iPOPS 2020
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] CRISPR-Cas based methods toward precision and secure genome editing/regulation.2019

    • Author(s)
      野村 渉
    • Organizer
      第13回バイオ関連化学シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Remarks] 広島大学大学院医系科学研究科 創薬標的分子科学研究室 webページ

    • URL

      https://nomulab.hiroshima-u.ac.jp/publications

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report 2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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