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Feasibility study on cell function control utilizing intranuclear dispersion of DNA induced with mechanical stimulation to the nucleus

Research Project

Project/Area Number 17K20102
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Biomedical engineering and related fields
Research InstitutionNagoya University

Principal Investigator

Matsumoto Takeo  名古屋大学, 工学研究科, 教授 (30209639)

Co-Investigator(Kenkyū-buntansha) 前田 英次郎  名古屋大学, 工学研究科, 助教 (20581614)
Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywordsバイオメカニクス / メカノバイオロジー / 細胞核 / クロマチン / DNA / 力学刺激 / 組織・細胞 / 分化
Outline of Final Research Achievements

Two-year study was conducted to control cell function utilizing intranuclear dispersion of DNA induced with mechanical stimulation to the nucleus. We compressed the nucleus of cultured osteoblastic cell line MC3T3-E1 with a micropipette tip by 5 microns, and found that the number of aggregates of chromatin decreases in 3 minutes. We then fabricated a PDMS substrate having wells (100 micron x 100 micron, depth 10 micron) with soft photolithography. We put the cells in the wells, one per each well, and tried to compress them with a cover glass, but failed because the parallelism between the substrate and the cover glass was not enough.

Academic Significance and Societal Importance of the Research Achievements

マイクロ流路に細胞を流す実験から細胞核を圧縮することでクロマチン凝集体の数が減少することは判っていたが,5μmの圧縮により3分後に減少するという定量的なデータが得られた点が第1の成果である.また,この場合も凝集体の数の現象が見られたのは押込の中心部だけであり,圧子先端の球の曲率から考えて押込の中心部と周辺部の押込量の差がたかだか0.5μmであることを考えあわせると,圧縮量の僅かの差が凝集体数の減少に決定的な影響を与えることが分かった点が第2の成果と言える.また,ウェルに細胞を落とし込み,上からカバーグラスで圧縮する方式が困難であることが判った点も今後の装置開発において重要な情報と言える.

Report

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

    (16 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] Brno University of Technology(チェコ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Analysis of Heterogeneous Deformation in the Wall of Rabbit Thoracic Aorta at Microscopic Level2019

    • Author(s)
      Fan Y, Wang JF, Maeda E, Murase K, Matsumoto T
    • Journal Title

      Advanced Biomedical Engineering

      Volume: 8 Issue: 0 Pages: 7-13

    • DOI

      10.14326/abe.8.7

    • NAID

      130007552693

    • ISSN
      2187-5219
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photoelasticity-based evaluation of cellular contractile force for phenotypic discrimination of vascular smooth muscle cells2019

    • Author(s)
      Sugita Shukei, Mizutani Eri, Hozaki Masatoshi, Nakamura Masanori, Matsumoto Takeo
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 3960-3960

    • DOI

      10.1038/s41598-019-40578-7

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Finite Element Bendo-Tensegrity Model of Eukaryotic Cell2018

    • Author(s)
      Bansod Yogesh Deepak、Matsumoto Takeo、Nagayama Kazuaki、Bursa Jiri
    • Journal Title

      Journal of Biomechanical Engineering

      Volume: 140 Issue: 10 Pages: 101001-101001

    • DOI

      10.1115/1.4040246

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Direct application of mechanical stimulation to cell adhesion sites using a novel magnetic-driven micropillar substrate2018

    • Author(s)
      Nagayama K, Inoue T, Hamada Y, Sugita S, Matsumoto T
    • Journal Title

      Biomed Microdevices

      Volume: 20 Issue: 4 Pages: 85-85

    • DOI

      10.1007/s10544-018-0328-y

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of cyclic compression on the mechanical properties and calcification process of immature chick bone tissue in culture2017

    • Author(s)
      Maeda Eijiro、Nakagaki Masashi、Ichikawa Katsuhisa、Nagayama Kazuaki、Matsumoto Takeo
    • Journal Title

      Bone Reports

      Volume: 6 Pages: 120-128

    • DOI

      10.1016/j.bonr.2017.04.002

    • NAID

      120006331843

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Measurement of surface topography and stiffness distribution on cross-section of Xenopus laevis tailbud for estimation of mechanical environment in embryo2017

    • Author(s)
      Murakami Fumiaki、Ando Yoriko、Miyagi Asuka、Sugita Shukei、Ueno Naoto、Matsumoto Takeo
    • Journal Title

      Development, Growth & Differentiation

      Volume: 59 Issue: 5 Pages: 434-443

    • DOI

      10.1111/dgd.12372

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A novel patterned magnetic micropillar array substrate for analysis of cellular mechanical responses2017

    • Author(s)
      Nagayama Kazuaki、Inoue Takuya、Hamada Yasuhiro、Matsumoto Takeo
    • Journal Title

      Journal of Biomechanics

      Volume: 65 Pages: 194-202

    • DOI

      10.1016/j.jbiomech.2017.10.017

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 高血圧に伴う肥厚メカニズムの解明に向けた動脈壁変形のマルチスケール計測2018

    • Author(s)
      松本健郎
    • Organizer
      第57回日本生体医工学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 圧縮刺激が核内クロマチンに与える影響の評価に関する基礎的研究2018

    • Author(s)
      森 尚輝,王 軍鋒,前田英次郎,村瀬晃平,松本健郎
    • Organizer
      第41回日本バイオレオロジー学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Analysis of heterogeneous deformation in the wall of rabbit thoracic aorta at a microscopic level2018

    • Author(s)
      Fan Y, Wang JF, Maeda E, Murase K, Matsumoto T
    • Organizer
      生体医工学シンポジウム2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 圧縮刺激が細胞核内DNAの凝集状態に与える影響の定量評価2018

    • Author(s)
      森 尚輝,王 軍鋒,前田英次郎,村瀬晃平,松本健郎
    • Organizer
      第29回バイオフロンティア講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 細胞力学刺激の細胞核への影響の定量評価に関する基礎的研究2018

    • Author(s)
      森 尚輝,前田英次郎,村瀬晃平,松本健郎
    • Organizer
      日本機械学会東海支部第49回学生員卒業研究発表講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] Biomechanical Approaches toward Estimation of Stress Distribution in Xenopus Laevis Embryos2017

    • Author(s)
      Matsumoto T
    • Organizer
      Japan-UCI Meeting on 3D Morphogenesis
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Estimation of shear deformation of glycocalyx layer on vascular endothelial cells in response to fluid flow2017

    • Author(s)
      Matsumoto T, Takahashi Y, Owaki Y, Nagayama K
    • Organizer
      The Third International Symposium on Mechanobiology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] バイオメカニクス研究室

    • URL

      http://bio.mech.nagoya-u.ac.jp/

    • Related Report
      2018 Annual Research Report 2017 Research-status Report

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Published: 2017-07-21   Modified: 2020-03-30  

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