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Modeling a gut flora of a zebrafish by combining experiments, theories and numerical simulations

Research Project

Project/Area Number 18K19893
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 InstitutionTohoku University

Principal Investigator

Ishikawa Takuji  東北大学, 医工学研究科, 教授 (20313728)

Project Period (FY) 2018-06-29 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords腸内フローラ / バイオメカニクス / 数理モデル / シミュレーション / 可視化計測 / バイオテクノロジー / 微生物 / モデル化
Outline of Final Research Achievements

In this project, we investigated microbial flora in the intestine of a zebrafish larva by combining theories and experiments based on transport phenomena. Three conservation laws (momentum, concentration and cells) are solved simultaneously, and the distribution and growth of bacteria are described. We also conducted experiments using a zebrafish larva. We established the experimental setup, and measured intestinal flow with high temporal and spacial resolutions.

Academic Significance and Societal Importance of the Research Achievements

ヒトの腸内には1kgもの細菌が生息しており、腸内フローラと呼ばれる生態系を形成している。近年、腸内フローラが宿主の様々な疾患と密接に関わっていることが明らかとなっているが、腸内フローラの形成メカニズムは解明されておらず、腸内フローラを予測し制御する技術は確立されていない。本研究で開発した腸内フローラシミュレータは、こうした現状を打破し、腸内フローラの形成を予測し制御する基盤技術となる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2020 2019 2018 Other

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Mechanical roles of anterograde and retrograde intestinal peristalses after feeding in a larval fish (Danio rerio)2020

    • Author(s)
      Kenji Kikuchi, Hyontack Noh, Keiko Numayama-Tsuruta, Takuji Ishikawa
    • Journal Title

      American Journal of Physiology - Gastrointestinal and Liver Physiology

      Volume: - Issue: 6 Pages: G1013-G1021

    • DOI

      10.1152/ajpgi.00165.2019

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bacterial biomechanics?From individual behaviors to biofilm and the gut flora2020

    • Author(s)
      Ishikawa Takuji、Omori Toshihiro、Kikuchi Kenji
    • Journal Title

      APL Bioengineering

      Volume: 4 Issue: 4 Pages: 041504-041504

    • DOI

      10.1063/5.0026953

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanical roles of anterograde and retrograde intestinal peristalses after feeding in a larval fish (Danio rerio)2020

    • Author(s)
      Kenji Kikuchi, Hyontack Noh, Keiko Numayama-Tsuruta, Takuji Ishikawa
    • Journal Title

      American Journal of Physiology - Gastrointestinal and Liver Physiology

      Volume: 319

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Bacterial detachment from a wall with a line of bump2019

    • Author(s)
      Jinyou Yang, Yuji Shimogonya, Takuji Ishikawa
    • Journal Title

      Physical Review E

      Volume: 99 Issue: 2 Pages: 023104-023104

    • DOI

      10.1103/physreve.99.023104

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Biomechanics can provide a new perspective on microbiology2020

    • Author(s)
      Takuji Ishikawa
    • Organizer
      Webinar in Sharif University of Technolog
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Inflamed Intestinal Flow in Zebrafish Larva2019

    • Author(s)
      Masahiro Takahashi, K. Numayama-Tsuruta, Kenji Kikuchi, Takuji Ishikawa
    • Organizer
      10th Asian-Pacific Conference on Biomechanics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mixing and pumping functions in a zebrafish larval intestine2019

    • Author(s)
      Kenji Kikuchi, Hyeongtak Noh, Keiko Numayama-Tsuruta, Takuji Ishikawa
    • Organizer
      72nd Annual Meeting of the APS Division of Fluid Dynamics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Spatial heterogeneity of bacterial flora in the intestine of zebrafish larvae2018

    • Author(s)
      Jinyou Yang, Yuji Shimogonya, Takuji Ishikawa
    • Organizer
      8th World Congress of Biomechanics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Gut Bacterial Flow in Zebrafish Larva2018

    • Author(s)
      Masahiro Takahashi, Kenji Kikuchi, Keiko Numayama-Tsuruta, Takuji Ishikawa
    • Organizer
      The Seven International Symposium on Aero Aqua Bio-mechanisms ISABMEC 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ゼブラフィッシュの腸内フローラシミュレーション2018

    • Author(s)
      楊金有, 下權谷祐児, 石川拓司
    • Organizer
      日本流体力学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] ゼブラフィッシュの腸蠕動と腸内細菌の分布2018

    • Author(s)
      高橋将大, 菊地謙次, 沼山恵子, 石川拓司
    • Organizer
      日本流体力学会年会
    • Related Report
      2018 Research-status Report
  • [Remarks] Biological Flow Studies Laboratory

    • URL

      http://www.bfsl.mech.tohoku.ac.jp/

    • Related Report
      2020 Annual Research Report 2019 Research-status Report

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Published: 2018-07-25   Modified: 2022-01-27  

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