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DNA conformational behavior and functions in microcapsules

Research Project

Project/Area Number 17K05611
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionNagoya University

Principal Investigator

Zinchenko Anatoly  名古屋大学, 環境学研究科, 准教授 (00432352)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsDNA / カプセル / DNA折り畳み / 人工細胞モデル / DNA凝縮 / 高分子カプセル / マイクロカプセル / DNA高次構造変化
Outline of Final Research Achievements

In eukaryotic cells, DNA macromolecules with a length exceeding 1 meter are densely folded and exist in cells with a size of several μm. Artificial experimental models are needed to explain the higher order structure and behavior of DNA in cellular-like environment. In this study, we constructed an "artificial cell model" method for encapsulating very ling genomic DNA in polymer capsules of several μm size. Using this experimental model, we made clear the behavior of DNA confined in the cell-sized space. The experimental methodology proposed in this study is promising for gene delivery and related biomedical applications.

Academic Significance and Societal Importance of the Research Achievements

核酸のカプセル化は、遺伝子送達、ゲノム保護などの応用を対象とする重要な技術である。これまでのカプセル化の技術により短いDNAまたはオリゴマーDNAのカプセル化が示されたが、カプセルの大きさより数倍~数十倍ほど長いゲノムDNAのカプセル化が困難であった。本研究で開発した人工細胞モデルの構築方法を用いて、長鎖DNAのカプセル化はほぼ100%効率で成功した。この技術、細胞内での長鎖DNAの状態を明らかにするための使用に加えて、バイオ・医療分野においても応用できると期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (4 results) Journal Article (6 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Int'l Joint Research] 南洋理工大学(シンガポール)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] 南洋理工大学/理学部(シンガポール)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] シンガポール国立大学/理学部(シンガポール)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] モスクワ大/化学部(ロシア連邦)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Compaction and Self-Association of Megabase-Sized Chromatin is Induced by Anionic Protein Crowding2020

    • Author(s)
      Zinchenko A., Chen Q., Berezhnoy N., Wang S., Nordenskiold L.
    • Journal Title

      Soft Mater

      Volume: 16 Issue: 18 Pages: 4366-4372

    • DOI

      10.1039/d0sm00162g

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Amino Acid Sequence of Oligopeptide Causes Marked Difference in DNA Compaction and Transcription2019

    • Author(s)
      Zinchenko A., Hiramatsu H., Yamaguchi H., Kubo K., Murata S., Kanbe T., Hazemoto N., Yoshikawa K., Akitaya T.
    • Journal Title

      Biophisical Journal

      Volume: 116 Issue: 10 Pages: 1836-1844

    • DOI

      10.1016/j.bpj.2019.04.010

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Encapsulation of Long Genomic DNA into a Confinement of Polyelectrolyte Microcapsule: A Single-Molecule Insight2019

    • Author(s)
      Zinchenko A., Inagaki E., Murata S.
    • Journal Title

      ACS Omega

      Volume: 4 Issue: 1 Pages: 458-464

    • DOI

      10.1021/acsomega.8b02865

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Compaction of Single Molecule Megabase-Long Chromatin under the Influence of Macromolecular Crowding2018

    • Author(s)
      Zinchenko A., Berezhnoy N., Chen Q., Nordenskiold L.
    • Journal Title

      Biophys. J.

      Volume: 114 Issue: 10 Pages: 2326-2335

    • DOI

      10.1016/j.bpj.2018.04.012

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Single-molecule compaction of megabase-long chromatin molecules by multivalent cations2017

    • Author(s)
      Zinchenko A., Berezhnoy N.V., Wang S., Rosencrans William M., Korolev N., van der Maarel Johan R.C., Nordenskiold L.
    • Journal Title

      Nucleic Acids Research

      Volume: 46 Issue: 2 Pages: 635-649

    • DOI

      10.1093/nar/gkx1135

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] DNA-based materials as chemical reactors for synthesis of inorganic nanoparticles2017

    • Author(s)
      Zinchenko A., Sergeyev V.G.
    • Journal Title

      Polymer Science C

      Volume: 59 Issue: 1 Pages: 18-28

    • DOI

      10.1134/s1811238217010155

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Compaction of DNA and Chromatin under Influence of Neutral and Anionic Crowding2019

    • Author(s)
      Zinchenko A.
    • Organizer
      Okinawa Colloids 2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Encapsulation of Long DNA into Polyelectrolyte Capsules2018

    • Author(s)
      Zinchenko A., Inagaki E., Murata S.
    • Organizer
      The 45th International Symposium on Nucleic Acids Chemistry 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Unimolecular Compaction of Megabase-Long Chromatin2018

    • Author(s)
      Zinchenko A.
    • Organizer
      International Workshop Polyelectrolytes in Chemistry, Biology and Technology 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Encapsulation of Biomacromolecules and Small Particles into Polyelectrolyte Capsules2017

    • Author(s)
      Zinchenko A.
    • Organizer
      第68回コロイドおよび界面化学討論会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-02-22  

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