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Development of informatics techniques for analysis developmental lineages

Research Project

Project/Area Number 16H06155
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field System genome science
Research InstitutionThe University of Tokyo

Principal Investigator

Kobayashi Tetsuya  東京大学, 生産技術研究所, 准教授 (90513359)

Research Collaborator YAMAGATA kazuo  
FUNAHASHI akira  
YOKOTA ryo  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥27,300,000 (Direct Cost: ¥21,000,000、Indirect Cost: ¥6,300,000)
Fiscal Year 2018: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2017: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2016: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Keywords着床前胚 / 4Dイメージング / 力学モデル / 系譜解析 / トラッキング / 深層学習 / モデル化とシミュレーション / 定量生物学 / 発生 / 生殖補助医療 / 着床前杯 / 発生系譜 / 分岐過程 / 隠れ状態 / 核同定 / 再生補助医療 / 整数計画法 / GUI / 生体生命情報学 / 生物物理 / 数理工学
Outline of Final Research Achievements

In this work, with the aim at quantitatively analyzing developmental lineages of preimplantation embryos, we developed a collection of techniques for 4D image segmentation and tracking, statistical analysis of cellular lineages, and a mechanical simulation of embryogenesis.
In the image analysis, we improved the method of identifying cells in the embryo and eventually proposed a deep convolutional network for the 3D image segmentation. In the statistical analysis of cellular lineages, we proposed a method to estimate the latent state of cells from the patterns of cell divisions in the lineages.
Lastly, we constructed a mechanical model to reproduce the developmental process of the embryo.By employing these techniques, we have investigated how the culture condition changes the division pattern and synchronization of divisions, how the structural change in a whole embryo is related with the cell cycles of the individual cells.

Academic Significance and Societal Importance of the Research Achievements

本研究では、マウス着床前胚を対象として、バイオイメージングデータを元に発生系譜を解析する新たな情報技術を構築しました。これらの技術は、胚の発生過程に生じる様々な異変をより定量的にかつ統計的に解析することを可能とします。これらの技術を応用することで発生プロセスの原理を解明することは、胚の発生がどのように決定しているのか、また胚の発生速度の変化や発生の停止に培養状態などはどう影響しているのか、を客観的に評価することを可能とし、胚の健康を改善する培養条件の改良などに応用できると期待されます。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (15 results)

All 2019 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Book (1 results) Funded Workshop (1 results)

  • [Journal Article] The explicit form of the rate function for semi-Markov processes and its contractions2018

    • Author(s)
      Yuki Sughiyama, Testuya J. Kobayashi
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 51 Issue: 12 Pages: 125001-125001

    • DOI

      10.1088/1751-8121/aaab6d

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stochastic and information-thermodynamic structures of population dynamics in a fluctuating environment2017

    • Author(s)
      Testuya J. Kobayashi, Yuki Sughiyama
    • Journal Title

      Physical Review E

      Volume: 96 Issue: 1 Pages: 012402-012402

    • DOI

      10.1103/physreve.96.012402

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] 細胞系譜を用いた増殖に関わる隠れ状態の推定2019

    • Author(s)
      中島 蒼
    • Organizer
      第9回定量生物学の会 年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 細胞系譜から隠れた増殖モードを推定する2018

    • Author(s)
      小林 徹也
    • Organizer
      第15回 生物数学の理論とその応用 -次世代の数理科学への展開-
    • Related Report
      2018 Annual Research Report
  • [Presentation] 細胞性粘菌の細胞集団運動のデータ駆動型モデル2018

    • Author(s)
      錦野 敬三郎
    • Organizer
      第15回 生物数学の理論とその応用 -次世代の数理科学への展開-
    • Related Report
      2018 Annual Research Report
  • [Presentation] 初期胚発生における力学モデルの解析2018

    • Author(s)
      松井 崇晃
    • Organizer
      第15回 生物数学の理論とその応用 -次世代の数理科学への展開-
    • Related Report
      2018 Annual Research Report
  • [Presentation] A data-driven model for collective cell motion in Dictyostelium discoideum2018

    • Author(s)
      Keizaburo Nishikino, Ryo Yokota, Tetsuya J. Kobayashi
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Analyzing and modeling of early embryo development2018

    • Author(s)
      Takaaki Matsui, Tetsuya J. Kobayashi
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] EM based algorithm to infer both phenotypic state and cell division properties from lineage information2018

    • Author(s)
      So Nakashima
    • Organizer
      Evolution of Diversity
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A retrospective approach towards population dynamics under fluctuating environment / A retrospective analysis of the muti-state age-structured population dynamics2017

    • Author(s)
      Tetsuya J. Kobayashi, and Yuki Sughiyama
    • Organizer
      Ancestral lines in populations under selection
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] EM based algorithm to infer both phenotypic state and cell division properties from lineage information2017

    • Author(s)
      So Nakashima, Yuki Sughiyama, Tetsuya J. Kobayashi
    • Organizer
      EMBL conference Quantitative Principles in Biology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Path-wise analysis for the age-structured population dynamics2017

    • Author(s)
      Yuki Sughiyama
    • Organizer
      LARGE DEVIATION THEORY IN STATISTICAL PHYSICS: RECENT ADVANCES AND FUTURE CHALLENGES
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Steady State Thermodynamics in Population Dynamics2016

    • Author(s)
      Yuki Sughiyama, Tetsuya J. Kobayashi
    • Organizer
      生物物理学会 第54回年会
    • Related Report
      2016 Annual Research Report
  • [Book] 定量生物学2018

    • Author(s)
      小林 徹也
    • Total Pages
      290
    • Publisher
      化学同人
    • ISBN
      9784759817300
    • Related Report
      2018 Annual Research Report
  • [Funded Workshop] Physical Approaches for Growing & Evolving Populations2016

    • Related Report
      2016 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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