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In vitro three-dimensional blood capillary model for dynamics of cancer cell evolution

Research Project

Project/Area Number 20K21900
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 90:Biomedical engineering and related fields
Research InstitutionKagawa University

Principal Investigator

Terao Kyohei  香川大学, 創造工学部, 准教授 (80467448)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords血中がん細胞 / マイクロ流体デバイス / 血管狭窄部 / 毛細血管モデル / 1細胞解析 / 微小血管モデル / マイクロ・ナノデバイス / 3次元微細加工
Outline of Research at the Start

本提案は、がん転移過程における、がん細胞の進化プロセスを1細胞解像度で解析する技術の実現を目的とする。具体的には、血液を循環するがん細胞が毛細血管を通過するときに変形し、それによって遺伝子変異や発現状態の変化が生じ、「進化」することで転移能を獲得するという新たな仮説をマイクロデバイスによって検証する。このアプローチを、本申請では「がん細胞進化動力学」とし、物理的側面から転移メカニズムの解明に繋げる。

Outline of Final Research Achievements

To elucidate the effect of mechanical constraints on circulating tumor cells, we developed a methodology that allows us to visualize the dynamics of cancer cells passing microconstrictions and to recover them for further analysis. The microconstrictions reproduce in-vivo capillary shape, which has circular micro cross section. Using the in-vitro model, we demonstrated the visualization of cell and cell nucleus in a constriction.

Academic Significance and Societal Importance of the Research Achievements

がんによる死の多くは転移を伴う。したがって、転移メカニズムの解明は急務であるが、生体内では血流中の細胞の動態を1細胞レベルで追跡することは、極めて困難であることから、本モデルにより細胞動態が解析できるようになることは、がん転移の理解につながることが期待される。細胞・核内の挙動や遺伝子発現・変異を1細胞解像度で解析することで、血流中でがん細胞がどのように生き延び、そして他臓器への転移に至るのか、という疑問を細胞の物理的な挙動から理解することが可能になると期待される。

Report

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

    (11 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Int'l Joint Research] Institute Curie(フランス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Institute Curie(フランス)

    • Related Report
      2020 Research-status Report
  • [Journal Article] On-demand formation of heterogeneous gel fibers using two-dimensional micronozzle array2022

    • Author(s)
      Takahashi Koki、Takao Hidekuni、Shimokawa Fusao、Terao Kyohei
    • Journal Title

      Microfluidics and Nanofluidics

      Volume: 26 Issue: 2

    • DOI

      10.1007/s10404-022-02525-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] AC-Electroosmosis-Assisted Surface Plasmon Resonance Sensing for Enhancing Protein Signals with a Simple Kretschmann Configuration2022

    • Author(s)
      Terao Kyohei、Kondo Shohei
    • Journal Title

      Sensors

      Volume: 22 Issue: 3 Pages: 854-854

    • DOI

      10.3390/s22030854

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stainless microfluidic probe with 2D-array microapertures2021

    • Author(s)
      Takahashi Koki、Kamiya Shogo、Takao Hidekuni、Shimokawa Fusao、Terao Kyohei
    • Journal Title

      AIP Advances

      Volume: 11 Issue: 1 Pages: 015331-015331

    • DOI

      10.1063/5.0014119

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Microfluidic in Vitro Models for Studying Circulating Tumor Cells Fate in The Microvasculature2021

    • Author(s)
      E. Gasser, K. Terao, J.L. Viovy, J.Y. Pierga, C. Villard
    • Organizer
      25th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Two-Dimentional Microaperture Array for On-Demand Formation of Heterogeneous Gel Fibers2021

    • Author(s)
      K. Takahashi, H. Takao, F. Shimokawa, K. Terao
    • Organizer
      25th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In Vitro Three-Dimensional Model of Capillary Microconstriction for Imaging Cancer Cell Dynamics2021

    • Author(s)
      Y. Shiraga, H. Takao, F. Shimokawa, K. Terao
    • Organizer
      25th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 狭窄通過細胞集団の効率的回収に向けたマイクロ流体デバイスの開発2021

    • Author(s)
      十河広斗、伊藤義純、高尾 英邦、下川 房男, 寺尾 京平
    • Organizer
      第38回「センサ・マイクロマシンと応用システム」シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 血中がん細胞解析に向けた3次元毛細血管狭窄部モデルの開発2020

    • Author(s)
      白神吉洋、高尾英邦、下川房男、寺尾京平
    • Organizer
      第37回「センサ・マイクロマシンと応用システム」シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Single Cell Analysis using Nano-Micro Devices2020

    • Author(s)
      K. Terao
    • Organizer
      The 14th International Conference on Complex Medical Engineering
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2020-08-03   Modified: 2023-01-30  

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