• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2022 Fiscal Year Annual Research Report

Real-world modeling of life: From DNA to Organoid

Research Project

Project/Area Number 20H01877
Research InstitutionDoshisha University

Principal Investigator

吉川 研一  同志社大学, 研究開発推進機構, 客員教授(嘱託研究員) (80110823)

Project Period (FY) 2020-04-01 – 2023-03-31
KeywordsDNA高次構造転移 / 人工細胞モデル / ミニ臓器創成 / 生命現象の物理 / 非平衡開放系
Outline of Annual Research Achievements

実空間上に単純な実験モデルを構築するとともに、非平衡物理学や非線形科学に立脚した数理モデルと対比しながら、以下の3つの課題を中核に研究を総合的に推進した。
1)ゲノムDNAの高次構造転移と遺伝子活性に関して、溶液中での1分子の動的高次構造観測を活用し、高次構造と転写・発現・複製の活性との関連を明らかにすることを目指して研究を推進した。無細胞発現系を用いた実験により、一価カチオンの影響を定量的に調べた。その結果発現活性が、Rb>K>Cs>Na≒Li 、このような順番となることを明らかにした。ethanolなどのアルコールが発現活性を亢進させることを見出し、これが一分子鎖観察のデータを解析することにより求めた長鎖DNAの弾性の変化と相関していることを明らかにしている。抗がん剤Daunomycinなどが遺伝子活性とDNA高次構造変化に対して、特徴的な作用を示すことなども解明した。
2)細胞の実空間モデリングでは、水/水ミクロ相分離液滴を生成させるときに、微小管やキネシンを共存させると、多様な変形を示す細胞様の構造が自己組織的に創成されることを見出した。さらには、ガラス細管内で水/水相分離を起こすと、規則的に配列しサイズの揃った細胞サイズの液滴が生じることを明らかにしている。また、細胞の混雑環境が細胞顆粒の特異的な局在化を引き起こすことを、マクロな実空間のモデル(振動盤上の粒子粒子群の挙動)を用いて明らかにし、理論的なモデルも用い、現象の一般性を理論・実験両面化が解明してきている。
3)細胞の3次元組織体自己生成では、水/水ミクロ相分離液滴を用いた細胞モデル実験で、異種液滴が交互に配列するような、自己組織化構造が自発的に生成するといった、新たな実験系の創出ができている。がん細胞の全ゲノム解析により、活性な遺伝子群の時間発展の過程を明らかにするといった内容の研究も推進した。

Research Progress Status

令和4年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和4年度が最終年度であるため、記入しない。

  • Research Products

    (31 results)

All 2024 2023 2022 Other

All Int'l Joint Research (5 results) Journal Article (18 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 17 results,  Open Access: 12 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] New York City University(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      New York City University
  • [Int'l Joint Research] Institut Charles Sadron (CNRS)(フランス)

    • Country Name
      FRANCE
    • Counterpart Institution
      Institut Charles Sadron (CNRS)
  • [Int'l Joint Research] TU Dresden/Heiderberg University(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      TU Dresden/Heiderberg University
  • [Int'l Joint Research] Latvian Biomedicine Research Center(ラトビア)

    • Country Name
      LATVIA
    • Counterpart Institution
      Latvian Biomedicine Research Center
  • [Int'l Joint Research] Istituto Superiore di Sanita(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      Istituto Superiore di Sanita
  • [Journal Article] Periodic Alignment of Binary Droplets via a Microphase Separation of a Tripolymer Solution under Tubular Confinement2024

    • Author(s)
      Shono Mayu、Aburatani Koki、Yanagisawa Miho、Yoshikawa Kenichi、Shioi Akihisa
    • Journal Title

      ACS Macro Letters

      Volume: 13 Pages: 207~211

    • DOI

      10.1021/acsmacrolett.3c00689

    • Peer Reviewed / Open Access
  • [Journal Article] Spatial-Temporal Genome Regulation in Stress-Response and Cell-Fate Change2023

    • Author(s)
      Erenpreisa Jekaterina、Giuliani Alessandro、Yoshikawa Kenichi、Falk Martin、Hildenbrand Georg、Salmina Kristine、Freivalds Talivaldis、Vainshelbaum Ninel、Weidner Jonas、Sievers Aaron、Pilarczyk G?tz、Hausmann Michael
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Pages: 2658/1~40

    • DOI

      10.3390/ijms24032658

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Anticancer Drug Daunomycin Directly Affects Gene Expression and DNA Structure2023

    • Author(s)
      Nishio Takashi、Shimada Yohji、Yoshikawa Yuko、Kenmotsu Takahiro、Schiessel Helmut、Yoshikawa Kenichi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Pages: 6631~6631

    • DOI

      10.3390/ijms24076631

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Behavior of Biopolymers, Cytoskeleton, DNA, and Phospholipids, that Exert Self-organization, Shown in the Liquid-Liquid Phase Separation2023

    • Author(s)
      TAKIGUCHI Kingo、SAKUTA Hiroki、HAYASHI Masahito、WAIZUMI Tatsuyuki、TSUMOTO Kanta、YOSHIKAWA Kenichi
    • Journal Title

      Seibutsu Butsuri

      Volume: 63 Pages: 5~11

    • DOI

      10.2142/biophys.63.5

    • Peer Reviewed / Open Access
  • [Journal Article] Self-emergent vortex flow of microtubule and kinesin in cell-sized droplets under water/water phase separation2023

    • Author(s)
      Sakuta Hiroki、Nakatani Naoki、Torisawa Takayuki、Sumino Yutaka、Tsumoto Kanta、Oiwa Kazuhiro、Yoshikawa Kenichi
    • Journal Title

      Communications Chemistry

      Volume: 6 Pages: 1~9

    • DOI

      10.1038/s42004-023-00879-5

    • Peer Reviewed / Open Access
  • [Journal Article] Crowding effect on the alignment of rod molecules confined in a spherical cavity2023

    • Author(s)
      Shew Chwen-Yang、Yoshikawa Kenichi
    • Journal Title

      Chemical Physics Letters

      Volume: 819 Pages: 140437~140437

    • DOI

      10.1016/j.cplett.2023.140437

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chlorogenic Acid Protects DNA against Double-strand Breaks: Evidence from Single Molecule Observation2023

    • Author(s)
      Ogawa Haruto、Nishio Takashi、Yoshikawa Yuko、Sadakane Koichiro、Yoshikawa Kenichi
    • Journal Title

      Chemistry Letters

      Volume: 52 Pages: 524/1~7

    • DOI

      10.1246/cl.230171

    • Peer Reviewed / Open Access
  • [Journal Article] Spontaneous Formation of Uniform Cell‐Sized Microgels through Water/Water Phase Separation2023

    • Author(s)
      Shono Mayu、Honda Gen、Yanagisawa Miho、Yoshikawa Kenichi、Shioi Akihisa
    • Journal Title

      Small

      Volume: 19 Pages: 23021193/1~6

    • DOI

      10.1002/smll.202302193

    • Peer Reviewed / Open Access
  • [Journal Article] Stiffness of Confinement Controls the Localization of an Object under Crowding: Macroscale Real-World and Microscale Numerical Modelings on the Specificity of Intracellular Positioning2023

    • Author(s)
      Kuroda Maho、Takatori Satoshi、Kenmotsu Takahiro、Yoshikawa Kenichi、Shew Chwen-Yang
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 92 Pages: 064001/1~9

    • DOI

      10.7566/jpsj.92.064001

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Droplet duos on water display pairing, autonomous motion, and periodic eruption2023

    • Author(s)
      Sumino Yutaka、Yamashita Ryo、Miyaji Kazuki、Ishikawa Hiroaki、Otani Maho、Yamamoto Daigo、Okita Erika、Okamoto Yasunao、Krafft Marie Pierre、Yoshikawa Kenichi、Shioi Akihisa
    • Journal Title

      Scientific Reports

      Volume: 13 Pages: 12377/1~10

    • DOI

      10.1038/s41598-023-39094-6

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Stabilization of DNA-encapsulating Droplets through Negative Charge at the Droplet Interface2023

    • Author(s)
      Shono Mayu、Fujita Fumika、Yoshikawa Kenichi、Shioi Akihisa
    • Journal Title

      Chemistry Letters

      Volume: 52 Pages: 794~797

    • DOI

      10.1246/cl.230294

    • Peer Reviewed / Open Access
  • [Journal Article] Micro-DC rotary-motor working smoothly with neither contact brush nor fixed-axis2023

    • Author(s)
      Ishida Shusuke、Takatori Satoshi、Hirano Ken、Yamamoto Daigo、Oe Yohei、Yoshikawa Kenichi
    • Journal Title

      AIP Advances

      Volume: 13 Pages: 115231/1~6

    • DOI

      10.1063/5.0169304

    • Peer Reviewed / Open Access
  • [Journal Article] 新規な病態計測法:組織の伸展応答パターンにおける機械学習の活用2022

    • Author(s)
      田上 幸歩、鷹取 慧、水谷 健一、剣持 貴弘、鶴山 竜昭、池川 雅哉、吉川 研一
    • Journal Title

      日本シミュレーション学会論文誌

      Volume: 14 Pages: 133~137

    • DOI

      10.11308/tjsst.14.133

    • Peer Reviewed / Open Access
  • [Journal Article] Water‐in‐Water Droplets Selectively Uptake Self‐Assembled DNA Nano/Microstructures: a Versatile Method for Purification in DNA Nanotechnology2022

    • Author(s)
      Masukawa Marcos K.、Sato Yusuke、Yu Fujio、Tsumoto Kanta、Yoshikawa Kenichi、Takinoue Masahiro
    • Journal Title

      ChemBioChem

      Volume: 23 Pages: e202200240/1~10

    • DOI

      10.1002/cbic.202200240

    • Peer Reviewed / Open Access
  • [Journal Article] Overview of DNA damage and double-strand breaks2022

    • Author(s)
      Tamanoi Fuyuhiko、Yoshikawa Kenichi
    • Journal Title

      The Enzymes

      Volume: 51 Pages: 1~5

    • DOI

      10.1016/bs.enz.2022.08.001

  • [Journal Article] Markedly Different Effects of Monovalent Cations on the Efficiency of Gene Expression2022

    • Author(s)
      Nishio Takashi、Masaoka Tomoya、Yoshikawa Yuko、Sadakane Koichiro、Kenmotsu Takahiro、Schiessel Helmut、Yoshikawa Kenichi
    • Journal Title

      Advanced Biology

      Volume: 7 Pages: 2200164/1~8

    • DOI

      10.1002/adbi.202200164

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quantitative evaluation of DNA double-strand breaks (DSBs) through single-molecule observation2022

    • Author(s)
      Yoshikawa Kenichi
    • Journal Title

      The Enzymes

      Volume: 51 Pages: 7~27

    • DOI

      10.1016/bs.enz.2022.08.002

    • Peer Reviewed
  • [Journal Article] Activation/Inhibition of Gene Expression Caused by Alcohols: Relationship with the Viscoelastic Property of a DNA Molecule2022

    • Author(s)
      Fujino Kohei、Nishio Takashi、Fujioka Keita、Yoshikawa Yuko、Kenmotsu Takahiro、Yoshikawa Kenichi
    • Journal Title

      Polymers

      Volume: 15 Pages: 149/1~13

    • DOI

      10.3390/polym15010149

    • Peer Reviewed
  • [Presentation] Nonlinear dynamics in life: From higher-order structure of DNA to multicellular system2023

    • Author(s)
      Kenichi Yoshikawa
    • Organizer
      International Symposium ”Transposons, lamina, genome instability, DNA repair, and cancer”
    • Int'l Joint Research / Invited
  • [Presentation] How does the aqueous environment on DNA concern the promotion/inhibition of genomic activity?2023

    • Author(s)
      Kenichi Yoshikawa
    • Organizer
      Workshop “Physics of Soft and Active Matter in Different Spatio-Temporal Domains”
    • Invited
  • [Presentation] 水/水相分離ミクロ液滴に局在する微小管・キネシンの自発的対流生成2023

    • Author(s)
      作田浩輝, 中谷真規, 鳥澤嵩征, 住野豊, 湊元幹太, 大岩和弘, 吉川 研一
    • Organizer
      第11回ソフトマター研究会
  • [Presentation] レーザーが引き起こす水/水相分離系の時空間ダイナミクス2022

    • Author(s)
      吉川研一
    • Organizer
      「自然に学ぶレーザーカオスと量子ダイナミクス」専門委員会 第 4 回講演会
    • Invited
  • [Presentation] Change of the higher-order structure in DNA causes significant effect on genetic activity: a physical view.2022

    • Author(s)
      Kenichi Yoshikawa
    • Organizer
      Riga International Symposium: "Spatial-temporal genome regulation in stress- response and cell-fate change
    • Int'l Joint Research / Invited
  • [Presentation] Self-Emergent Structure & Function on Hierarchical Life System: Real-World Modeling2022

    • Author(s)
      Kenichi Yoshikawa
    • Organizer
      25th Anniversary Symposium of German-Japanese Joint Research Project on Nonequilibrium Statistical Physics Perspectives for Future Collaboration
    • Int'l Joint Research / Invited
  • [Book] リズム現象の世界 新装版2023

    • Author(s)
      蔵本 由紀
    • Total Pages
      256
    • Publisher
      東京大学出版会
    • ISBN
      9784130613170
  • [Remarks] 同志社大学生命医科学部生命物理科学研究室

    • URL

      https://dmpl.doshisha.ac.jp/

URL: 

Published: 2024-12-25  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi