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Construction of stimuli-responsive artificial organelles for molecular robots

Research Project

Project/Area Number 20K19918
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 62010:Life, health and medical informatics-related
Research InstitutionTohoku University

Principal Investigator

SATO Yusuke  東北大学, 学際科学フロンティア研究所, 助教 (60830560)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
KeywordsDNAナノテクノロジー / 液ー液相分離 / 分子ロボティクス / パターン形成 / リポソーム / 人工細胞 / 生物物理 / 液-液相分離 / 人工オルガネラ / 分子ロボット
Outline of Research at the Start

生命システムのような複雑な人工分子システム(分子ロボット)を構築するためには,細胞小器官のような機能的区画構造の形成を自在に制御する必要がある.本課題では,情報分子DNAの可制御性を駆使して,特定の外部刺激に応じて形成・消失を制御可能な人工オルガネラを創る.そして,人工オルガネラを筐体である脂質膜小胞に実装する.以上を通して,生命システムに見られるような機能的区画構造の形成を自在に制御可能な分子ロボット開発のための基本的方法論を確立することを目指す.

Outline of Final Research Achievements

This work aimed to construct artificial organelles that can be assembled and disassembled in response to external stimulation. DNA nanostructures capable of exhibiting liquid-liquid phase separation (LLPS) were designed. The formation of the DNA droplets in response to specific DNA strands was confirmed. I succeeded in accumulating multiple functional enzymes into DNA droplets formed via LLPS at specific ambient conditions. We also attempted to construct DNA microstructures with domains, which was inspired by the domain formation of lipid bilayer via lateral phase separation. The formation of the phase-separated capsule-like structures was achieved. Regulating the formed patterns and the degradation of the capsule structures by enzymatic reactions were also demonstrated.

Academic Significance and Societal Importance of the Research Achievements

DNAを利用することで,ナノ・マイクロ構造の構築にとどまらず,情報処理デバイスや刺激に応答して変形するデバイスを作ることができる.したがって,このようなDNAデバイスとDNAで形成されたオルガネラおよびカプセル構造を組み合わせることで,将来的には,刺激に応答した運動や,標的を認識してカプセルの中身を放出するなど,様々な機能を持った人工オルガネラ・カプセル構造への発展が期待され,医学,工学など多くの研究分野への寄与が見込める.

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 Other

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 5 results) Presentation (8 results) (of which Int'l Joint Research: 3 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Therapeutic Applications of Programmable DNA Nanostructures2022

    • Author(s)
      Aye Seaim、Sato Yusuke
    • Journal Title

      Micromachines

      Volume: 13 Issue: 2 Pages: 315-315

    • DOI

      10.3390/mi13020315

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] “Capsule-like DNA hydrogels with patterns formed by lateral phase separation of DNA nanostructures”2021

    • Author(s)
      Yusuke Sato, *Masahiro Takinoue
    • Journal Title

      JACS Au

      Volume: Vol.2 Issue: 1 Pages: 159-168

    • DOI

      10.1021/jacsau.1c00450

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pattern Regulation of DNA Hydrogels Formed by Lateral Phase Separation of DNA Nanostructures on Water-in-Oil Droplet Interfaces2021

    • Author(s)
      Sato Yusuke、Takinoue Masahiro
    • Journal Title

      ChemRxiv

      Volume: -- Pages: 1-33

    • DOI

      10.26434/chemrxiv.14245532.v1

    • Related Report
      2020 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] DNA nanotechnology provides an avenue for the construction of programmable dynamic molecular systems2021

    • Author(s)
      Sato Yusuke、Suzuki Yuki
    • Journal Title

      Biophysics and Physicobiology

      Volume: 18 Issue: 0 Pages: 116-126

    • DOI

      10.2142/biophysico.bppb-v18.013

    • NAID

      130008043992

    • ISSN
      2189-4779
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] DNA ナノテクノロジーによる細胞型分子ロボットの構築2020

    • Author(s)
      佐藤 佑介、瀧ノ上 正浩
    • Journal Title

      The Journal of The Institute of Electrical Engineers of Japan (電気学会誌)

      Volume: 140 Issue: 9 Pages: 582-584

    • DOI

      10.1541/ieejjournal.140.582

    • NAID

      130007893762

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Presentation] Pattern formation on capsule-like DNA hydrogels induced by lateral phase separation of DNA nanostructure2021

    • Author(s)
      Yusuke Sato, Masahiro Takinoue
    • Organizer
      The 27th International Conference on DNA Computing and Molecular Programming (DNA 27)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] DNAナノ構造の側方相分離と細胞サイズ相分離DNAベシクル2021

    • Author(s)
      佐藤佑介, 瀧ノ上正浩
    • Organizer
      第5回分子ロボティクス年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 側方相分離が誘起するカプセル様DNAハイドロゲル表面のパターン形成2021

    • Author(s)
      佐藤佑介, 瀧ノ上正浩
    • Organizer
      第59回生物物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] DNA ナノ構造の液-液相分離による液滴形成と二次元界面への展開2020

    • Author(s)
      佐藤佑介, 瀧ノ上正浩
    • Organizer
      「細胞を創る」研究会13.0
    • Related Report
      2020 Research-status Report
  • [Presentation] DNAナノディスクの開発 ~膜タンパク質活用技術の開拓に向けて~2020

    • Author(s)
      佐藤佑介, Thorsten-Lars Schmidt
    • Organizer
      第4回分子ロボティクス年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Toward the construction of artificial organelles with controllability based on liquid-liquid phase separation of DNA nanostructures2020

    • Author(s)
      佐藤佑介
    • Organizer
      第58回生物物理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Mapping the phase diagram of DNA hydrogels with droplet microfluidics2020

    • Author(s)
      Guilhem Mariette, Nicolas Lobato-Dauzier, Robin Deteix, Meihui Zhang, Shu Okumura, Yusuke Sato, Masahiro Takinoue, Teruo Fujii, Anthony J. Genot
    • Organizer
      MicroTAS2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] DNA hydrogels as a scaffold for organs-on-chips: Study of buoyancy and sedimentation of microbeads in DNA gels2020

    • Author(s)
      Emilie Belot, Yannick Tauran, Yusuke Sato, Masahiro Takinoue, Arnaud Brioude, Teruo Fujii, Anthony J. Genot
    • Organizer
      MicroTAS2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Book] 相分離生物学の全貌(現代化学増刊46)2020

    • Author(s)
      佐藤佑介,瀧ノ上正浩,(白木 賢太郎(編))
    • Total Pages
      400
    • Publisher
      東京化学同人
    • ISBN
      9784807913466
    • Related Report
      2020 Research-status Report
  • [Remarks] 個人webページ

    • URL

      https://sites.google.com/view/ysato-web/menu/achievement

    • Related Report
      2021 Annual Research Report
  • [Remarks] 酵素反応が可能な細胞サイズの相分離DNAカプセルの構築に成功

    • URL

      https://www.tohoku.ac.jp/japanese/2021/12/press20211213-01-dna.html

    • Related Report
      2021 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2023-01-30  

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