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Cell wall-loosening agents and DNA-transporting nanomicelles for efficient gene delivery to plant chloroplasts

Research Project

Project/Area Number 22K14575
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 28040:Nanobioscience-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Miyamoto Takaaki  国立研究開発法人理化学研究所, 環境資源科学研究センター, 研究員 (20804040)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords細胞壁 / DNA送達 / 双性型イオン液体 / 葉緑体移行ペプチド / ナノミセル / 活性酸素種 / 抗酸化ペプチド / 葉緑体ゲノム改変 / 遺伝子送達 / 植物細胞壁 / ストレス / 葉緑体改変 / 遺伝子導入 / 双性イオン型ペプチド / 葉緑体移行シグナル / 葉緑体
Outline of Research at the Start

本研究では、葉緑体へ遺伝子を運ぶペプチド-DNA複合体(ナノミセル)と、細胞壁を弛緩させる双性イオン型ペプチドを組み合わせた、全く新しい葉緑体への遺伝子導入手法を開発する。これを達成するため、本研究計画では、 双性イオン型ペプチドがナノミセルの細胞壁透過効率と揚力亭への遺伝子導入効率与える影響を解明すると共に、実用植物種への遺伝子導入が可能であるかを検証する。

Outline of Final Research Achievements

A novel method for efficient DNA delivery into plant chloroplasts was developed by combining zwitterionic ionic liquid (ZIL) pretreatment with chloroplast-targeted nanomicelles. ZIL pretreatment increased cell wall permeability by partially dissolving crystalline cellulose microfibrils without damaging the cell membrane, resulting in a 2-fold improvement in DNA delivery efficiency, offering a simpler alternative to existing techniques. Zwitterionic peptides (ZIPs) were developed based on ZILs' structure to further enhance cell wall permeability. ZIPs dissolved crystalline cellulose at lower concentrations than ZILs, potentially improving permeability without reducing regeneration efficiency. Unexpectedly, the chloroplast transit and cell-penetrating peptides used in the nanomicelles exhibited high reactive oxygen species (ROS) scavenging ability. This led to the development of a chimeric peptide that temporarily eliminated ROS inside chloroplasts.

Academic Significance and Societal Importance of the Research Achievements

本研究成果により、従来よりも高効率な葉緑体への遺伝子導入が可能となった。ZILとZIPを用いる化学処理手法は、プロトプラストや高価な装置を用いることなく、植物細胞壁の透過性を向上させる新たなコンセプトである。この技術は、葉緑体改変を軸とした植物の形質改良や有用物質生産などの応用研究に貢献できる。さらに本研究では、ある種の葉緑体移行ペプチドと細胞膜透過ペプチドに活性酸素(ROS)消去能があることを発見した。この知見は、植物の酸化ストレスを緩和させる新たな手法の開発につながる。以上の成果は、基礎植物科学のみならず、持続可能な農業や次世代バイオテクノロジーの実現にも貢献すると考えられる。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (15 results)

All 2024 2023 2022

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results)

  • [Journal Article] Phenylboronic Acid-Functionalized Micelles Dual-Targeting Boronic Acid Transporter and Polysaccharides for siRNA Delivery into Brown Algae2024

    • Author(s)
      Yoshinaga Naoto、Miyamoto Takaaki、Goto Mami、Tanaka Atsuko、Numata Keiji
    • Journal Title

      JACS Au

      Volume: 4 Issue: 4 Pages: 1385-1395

    • DOI

      10.1021/jacsau.3c00767

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Advancing Biomolecule Delivery in Plants: Harnessing Synthetic Nanocarriers to Overcome Multiscale Barriers for Cutting-Edge Plant Bioengineering2023

    • Author(s)
      Miyamoto Takaaki、Numata Keiji
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 96 Issue: 9 Pages: 1026-1044

    • DOI

      10.1246/bcsj.20230147

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Organelle-targeted gene delivery in plants by nanomaterials2023

    • Author(s)
      Law Simon Sau Yin、Miyamoto Takaaki、Numata Keiji
    • Journal Title

      Chemical Communications

      Volume: 59 Issue: 47 Pages: 7166-7181

    • DOI

      10.1039/d3cc00962a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Plant Mitochondrial-Targeted Gene Delivery by Peptide/DNA Micelles Quantitatively Surface-Modified with Mitochondrial Targeting and Membrane-Penetrating Peptides2023

    • Author(s)
      Abe Naoya、Fujita Seiya、Miyamoto Takaaki、Tsuchiya Kousuke、Numata Keiji
    • Journal Title

      Biomacromolecules

      Volume: 24 Issue: 8 Pages: 3657-3665

    • DOI

      10.1021/acs.biomac.3c00391

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Design of an Artificial Peptide Inspired by Transmembrane Mitochondrial Protein for Escorting Exogenous DNA into the Mitochondria to Restore their Functions by Simultaneous Multiple Gene Expression2023

    • Author(s)
      Yoshinaga Naoto、Miyamoto Takaaki、Odahara Masaki、Takeda‐Kamiya Noriko、Toyooka Kiminori、Nara Seia、Nishimura Haruna、Ling Feng、Su'etsugu Masayuki、Yoshida Minoru、Numata Keiji
    • Journal Title

      Advanced Functional Materials

      Volume: 34 Issue: 8 Pages: 2306070-2306070

    • DOI

      10.1002/adfm.202306070

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relaxation of the Plant Cell Wall Barrier via Zwitterionic Liquid Pretreatment for Micelle‐Complex‐Mediated DNA Delivery to Specific Plant Organelles2022

    • Author(s)
      Miyamoto Takaaki、Tsuchiya Kousuke、Toyooka Kiminori、Goto Yumi、Tateishi Ayaka、Numata Keiji
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 61 Issue: 32

    • DOI

      10.1002/anie.202204234

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Peptide-mediated DNA delivery to target organelles in plants: Strategies to overcome plant cellular barriers2024

    • Author(s)
      Takaaki Miyamoto & Keiji Numata
    • Organizer
      S-FISNA~NIH~&~NSF~
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Peptide-mediated intracellular cargo delivery for plant biomodification2023

    • Author(s)
      Takaaki Miyamoto & Keiji Numata
    • Organizer
      第72回高分子年次大会、日台ジョイントセッション
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 植物の葉緑体で活性酸素種を消去するペプチドを利用した強光ストレス下での光合成機能の保護2023

    • Author(s)
      宮本昂明、沼田圭司
    • Organizer
      第17回バイオ関連化学シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 植物の形質改変を目指した高機能ペプチド材料の開発とマテリアルDXの融合に向けた展開2023

    • Author(s)
      宮本昂明、沼田圭司
    • Organizer
      DxMT 若手WORKSHOP OSAKA 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Designed antioxidant peptides with cell permeability, chloroplast targeting and ROS scavenging capabilities for plant protection under abiotic stress conditions2023

    • Author(s)
      Takaaki Miyamoto, Keiji Numata.
    • Organizer
      2023 Gordon Research Conference on Chloroplast Biotechnology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] ペプチド提示型ミセルと細胞壁の透過性を向上させる 双性型イオン液体を利用した植物葉緑体への核酸導入2022

    • Author(s)
      宮本昂明、沼田圭司
    • Organizer
      第32回バイオ・高分子シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] 核酸を内包するペプチド提示ミセルと細胞壁を緩める双性型イオン液体を組み合わせた植物オルガネラへのDNA送達2022

    • Author(s)
      宮本昂明、沼田圭司
    • Organizer
      第16回バイオ関連化学シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] 植物細胞のバリアを克服するペプチドの設計と核酸・タンパク質デリバリーへの応用2022

    • Author(s)
      宮本昂明、沼田圭司
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] ペプチドによる植物への核酸導入2022

    • Author(s)
      宮本昂明、沼田圭司
    • Organizer
      FIBER核酸化学ユニバース13 (FIBER FUTURE COLLEGE91)
    • Related Report
      2022 Research-status Report
    • Invited

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Published: 2022-04-19   Modified: 2025-01-30  

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