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細胞周期制御下の細胞界面ナノダイナミクスの研究

Publicly Offered Research

Project AreaMolecular Science for Supra Functional Systems ? Development of Advanced Methods for Exploring Elementary Process
Project/Area Number 22018003
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionHokkaido University

Principal Investigator

岡嶋 孝治  北海道大学, 大学院・情報科学研究科, 准教授 (70280998)

Co-Investigator(Kenkyū-buntansha) 新倉 謙一  北海道大学, 電子科学研究所, 准教授 (40360896)
Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2011: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2010: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords細胞周期 / 細胞界面 / ダイナミクス / 原子間力顕微鏡 / 人工脂質分子
Research Abstract

原子間力顕微鏡法(AHM)や種々の蛍光計測法を用いて、細胞周期(G1期、S期、G2期、M期)を制御した細胞界面ナノ領域の力学・ダイナミクス測定を行い、細胞周期に対する細胞界面ナノ物性を明らかにすることを目的として研究を行った。細胞周期を同定できる蛍光タンパク質を発現した細胞を用いて、細胞周期と細胞レオロジーとの関係を調べた。原子間力顕微鏡(AFM)計測により、全ての細胞周期において、複素弾性率の周波数特性はべき関数を示し、弾性振幅は、G1期やS/G2期に比べて、S期初期で増大することが分かった。また、G1期細胞のべき指数は、それ以外の細胞周期に比べて増大し、G1期の細胞は、他の細胞期に比べて流動的になることが分かった。細胞レオロジーが細胞周期に強く依存することが明らかになってきたが、細胞界面から内部への力学伝播に関する知見は皆無であり、その計測方法も欠如している。そこで、細胞内の力伝播を直接測定する方法を開発した。本方法は、力センサであるマイクロポスト基板上に培養した細胞の上部からAFMで力学刺激を与えて、細胞上部から細胞下部への力伝播をマイクロポストセンサーにより計測する方法である。周波数測定において細胞力伝播が弾性的であることが分かった。エンドサイトーシスを効率的に誘導する分子として、N-アセチルグルコサミン(GlcNAc)を有する高分子鎖が腫瘍細胞(HT1080)のエンドサイトーシスを強く誘導することを見つけた。

Report

(2 results)
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (22 results)

All 2012 2011 2010

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (14 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Effect of Isoproterenol on Local Contractile Behaviors of Rat Cardiomyocytes Measured by Atomic Force Microscopy2012

    • Author(s)
      Y.Mizutani, K.Kawahara, T.Okajima
    • Journal Title

      Current Pharmaceutical Biotechnology

      Volume: (印刷中)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Atomic Force Microscopy for the Examination of Single Cell Rheology2012

    • Author(s)
      T.Okajima
    • Journal Title

      Current Pharmaceutical Biotechnology

      Volume: (印刷中)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct observation of dynamic force propagation between focal adhesions of cells on microposts by atomic force microscopy2011

    • Author(s)
      A.Okada, 他6名, T.Okajima
    • Journal Title

      Appl.Phys.Lett.

      Volume: 99 Issue: 26 Pages: 263703-263703

    • DOI

      10.1063/1.3672225

    • NAID

      120003783352

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Negative-feedback regulation of ATP release : ATP release from cardiomyocytes is strictly regulated during ischemia2011

    • Author(s)
      Kunugi, 他2名, Okajima, T., Kawahara, K.
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 416 Issue: 3-4 Pages: 409-415

    • DOI

      10.1016/j.bbrc.2011.11.068

    • NAID

      120003762601

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rheological Properties of Growth-Arrested Fibroblast Cells under Serum Starvation Measured by Atomic Force Microscopy2011

    • Author(s)
      A.Miyaoka, 他3名, T.Okajima
    • Journal Title

      Jpn.J.Appl.Phys.

      Volume: 50 Issue: 8S3 Pages: 08LB16-08LB16

    • DOI

      10.1143/jjap.50.08lb16

    • NAID

      210000071145

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of Hydrophobic Structures on the Plasma Membrane Permeability of Lipid like Molecules2010

    • Author(s)
      K.Niikura, K.Nambara, T.Okajima, 他2名
    • Journal Title

      Langmuir

      Volume: 26 Pages: 9170-9175

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Statistics of Single Cell Mechanics Investigated by Atomic Force Microscopy2010

    • Author(s)
      S.Hiratsuka, 他5名, T.Okajima
    • Journal Title

      MRS Proceedings

      Volume: 1261

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Universal rheological properties of cells in intermediate states observed in stress relaxation of cell sheets2012

    • Author(s)
      M.Tsuchiya, Y.Mizutani, K.Kawahara, T.Okajima
    • Organizer
      Biophysical Society 56th Annual Meeting
    • Place of Presentation
      サンディエゴ会議センター(米国)
    • Year and Date
      2012-02-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] Power-law rheology of normal and cancer cells by AFM2012

    • Author(s)
      R.Takahashi, Y.Mizutani, K.Kawahara, T.Okajima
    • Organizer
      Biophysical Society 56th Annual Meeting
    • Place of Presentation
      サンディエゴ会議センター(米国)
    • Year and Date
      2012-02-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] Temporal Variation of Single Cell Rheology Investigated by Atomic Force Microscopy, (2011.12.19-21, Toyo)2011

    • Author(s)
      P.G.Cai, Y.Mizutani, K.Kawahara, T.Okajima
    • Organizer
      19th International Colloquium on Scanning Probe Microscopy
    • Place of Presentation
      洞爺湖万世閣(北海道)
    • Year and Date
      2011-12-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Ion current mapping of living cells using ion conductance microscopy2011

    • Author(s)
      Y.Mizutani, T.Okajima
    • Organizer
      19th International Colloquium on Scanning Probe Microscopy
    • Place of Presentation
      洞爺湖万世閣(北海道)
    • Year and Date
      2011-12-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Cycle Dependence of Single Cell Rheology Investigated by AFM2011

    • Author(s)
      Y.Usuki, Y.Mizutani, M.Tsuchiya, T.Okajima
    • Organizer
      19th International Colloquium on Scanning Probe Microscopy
    • Place of Presentation
      洞爺湖万世閣(北海道)
    • Year and Date
      2011-12-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Power-law rheology of normal and cancer cells investigated by atomic force microscopy2011

    • Author(s)
      R.Takahashi, Y.Mizutani, K.Kawahara, T.Okajima
    • Organizer
      19th International Colloquium on Scanning Probe Microscopy
    • Place of Presentation
      洞爺湖万世閣(北海道)
    • Year and Date
      2011-12-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Effect of hydrophobic structures of prodrugs on cellular membrane permeability2010

    • Author(s)
      Katsuyuki Nambara, Kenichi Niikura, T.Okajima, Yasutaka Matsuo, Kuniharu Ijiro
    • Organizer
      PACIFICHEM2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-17
    • Related Report
      2010 Annual Research Report
  • [Presentation] Time and Space Dependent Studies in Cell Rheology by Atomic Force Microscopy2010

    • Author(s)
      P.-G.Cai, Y.Mizutani, M.Tsuchiya, K.Kawahara, T.Okajima
    • Organizer
      18^<th> International Colloquim of Scanning Probe Microscopy
    • Place of Presentation
      Shizuoka
    • Year and Date
      2010-12-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Efficient Delivery of Nanoparticles into Cancer Cells Facilitated by Cellular Membrane-Retaining Cationic Polymers with Artificial Ligands2010

    • Author(s)
      Katsuyuki Nambara, Kenichi Niikura, T.Okajima, Yasutaka Matsuo, Kuniharu Ijiro
    • Organizer
      AsiaNano 2010
    • Place of Presentation
      Tokyo
    • Year and Date
      2010-11-01
    • Related Report
      2010 Annual Research Report
  • [Presentation] Rheological Properties of Drug-Treated Single Cells Investigated by Atomic Force Microscopy2010

    • Author(s)
      Ping-Gen Cai, Y.Mizutani, A, Miyaoka, M.Tsuchiya, K.Kawahara, T.Okajima
    • Organizer
      International Conference on Nanoscience and Technology
    • Place of Presentation
      Beijing, China
    • Year and Date
      2010-08-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] Power-law rheology of monolayer cell sheets under uniaxial stretching2010

    • Author(s)
      M.Tsuchiya, Y.Mizutani, K.Kawahara, T.Okajima
    • Organizer
      5th Pacific Rim Conference on Rheology (PRCR-5)
    • Place of Presentation
      Hokkaido
    • Year and Date
      2010-08-01
    • Related Report
      2010 Annual Research Report
  • [Presentation] Design of Hydrophobic Structures of Prodrugs to Enhance Cellular Membrane Permeability2010

    • Author(s)
      Katsuyuki Nambara, Kenichi Niikura, T.Okajima, Yasutaka Matsuo, Kuniharu Ijiro
    • Organizer
      LB13
    • Place of Presentation
      Quebec city, Canada
    • Year and Date
      2010-07-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] Drug-Induced Change of Single Cell Rheology Investigated by Atomic Force Microscopy2010

    • Author(s)
      PG Cai, Y.Mizutani, M.Tsuchiya, K.Kawahara, T.Okajima
    • Organizer
      The 12th International Scanning Probe Microscopy Conference
    • Place of Presentation
      Hokkaido
    • Year and Date
      2010-05-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] Rheology of transformed cells investigated by AFM2010

    • Author(s)
      Y.Mizutani, PG Cai, M.Tsuchiya, K.Kawahara, T.Okajima
    • Organizer
      The 12th International Scanning Probe Microscopy Conference
    • Place of Presentation
      Hokkaido
    • Year and Date
      2010-05-10
    • Related Report
      2010 Annual Research Report
  • [Patent(Industrial Property Rights)] 単一細胞の力学特性の計測方法および計測装置2011

    • Inventor(s)
      岡嶋孝治, 他3名
    • Industrial Property Rights Holder
      北海道大学
    • Industrial Property Number
      2011-184403
    • Filing Date
      2011-08-26
    • Related Report
      2011 Annual Research Report

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Published: 2010-08-23   Modified: 2018-03-28  

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