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in vitro reconstruction system for understanding nuclear structural property

Research Project

Project/Area Number 16K14727
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Cell biology
Research InstitutionYamaguchi University

Principal Investigator

Hara Yuki  山口大学, 大学院創成科学研究科, 講師 (80767913)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords細胞核 / クロマチン構造 / 核サイズ / サイズ生物学 / 無細胞再構成系 / サイズ / 無細胞再構築系 / 構造的特性 / 細胞生物学 / DNA / 細胞・組織
Outline of Final Research Achievements

For the sake of understanding structural properties in a nucleus, we analyzed mechanisms for controlling the nuclear size by focusing on intranuclear components and physical properties of chromatin. As a result, we proposed a novel mechanism for DNA-amount-dependent nuclear-size-scaling. Furthermore, through comparison of nuclear size across the Tree of life including eukaryotes and prokaryotes, we suggested the DNA-amount-dependent nuclear-size-scaling is only conserved within multicellular eukaryotes.

Academic Significance and Societal Importance of the Research Achievements

本研究で示した核内のDNA量やクロマチン構造により核サイズを制御する新規機構は、既存研究で主眼が置かれていた核構成タンパク質の量による核サイズ制御機構とは異なる観点から解析を進めることで、初めて提案するに至った。クロマチン構造は核内の機能である転写やDNA複製と密接に関連するため、本研究成果は核サイズと核内機能の双方向的な結びつきを強く示唆するものであり、当該細胞生物学領域での大きなインパクトを有する。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (25 results)

All 2020 2019 2018 2017 2016

All Journal Article (6 results) (of which Open Access: 1 results,  Peer Reviewed: 4 results) Presentation (19 results) (of which Int'l Joint Research: 4 results,  Invited: 9 results)

  • [Journal Article] Specialization of nuclear membrane in eukaryotes2020

    • Author(s)
      Yuki Hara
    • Journal Title

      Journal of Cell Science

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physiological polyspermy: Selection of a sperm nucleus for the development of diploid genomes in amphibians2020

    • Author(s)
      Iwao Y, Kimoto C, Fujimoto A, Suda A, Hara Y
    • Journal Title

      Molecular Reproduciton & Development

      Volume: 87 Issue: 3 Pages: 358-369

    • DOI

      10.1002/mrd.23235

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DNA Content Contributes to Nuclear Size Control in <i>Xenopus</i>2019

    • Author(s)
      Heijo Hiroko、Shimogama Sora、Nakano Shuichi、Miyata Anna、Iwao Yasuhiro、Hara Yuki
    • Journal Title

      SSRN Electronic Journal, SneakPeek2.0

      Volume: -

    • DOI

      10.2139/ssrn.3461734

    • Related Report
      2019 Annual Research Report
    • Open Access
  • [Journal Article] 細胞のサイズを感知し、核のサイズは制御される 核サイズのスケーリング2018

    • Author(s)
      原裕貴
    • Journal Title

      実験医学

      Volume: 36(13) Pages: 2174-2180

    • Related Report
      2018 Research-status Report
  • [Journal Article] Expansion of Cell Nucleus Size Depends on the Local Cytoplasmic Space2016

    • Author(s)
      原 裕貴
    • Journal Title

      Seibutsu Butsuri

      Volume: 56 Issue: 5 Pages: 275-277

    • DOI

      10.2142/biophys.56.275

    • NAID

      130005264930

    • ISSN
      0582-4052, 1347-4219
    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Scaling relationship between intra-nuclear DNA density and chromosomal condensation in metazoan and plant2016

    • Author(s)
      Yuki Hara, Kenta Adachi, Shunsuke Kagohashi, Kazuo Yamagata, Hideyuki Tanabe, Shinji Kikuchi, Sei-Ichi Okumura, Akatsuki Kimura
    • Journal Title

      Chromosome Science

      Volume: 印刷中

    • NAID

      130006837152

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] アフリカツメガエルにおいてDNAが核のサイズ決定に影響を与える2019

    • Author(s)
      原裕貴
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] サイズ細胞生物学:細胞は核のサイズをどのようにデザインするか?2019

    • Author(s)
      原裕貴
    • Organizer
      「細胞を創る」研究会12.0
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 細胞核サイズのスケーリング2019

    • Author(s)
      原 裕貴
    • Organizer
      サイズ生物学ワークショップ2019
    • Related Report
      2019 Annual Research Report 2018 Research-status Report
  • [Presentation] DNA-content-dependent nuclear size control in Xenopus2019

    • Author(s)
      原 裕貴
    • Organizer
      第36回染色体ワークショップ/第17回核ダイナミクス研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] DNA-content-dependent nuclear size control in Xenopus.2019

    • Author(s)
      Yuki Hara
    • Organizer
      第36回染色体ワークショップ/第17回核ダイナミクス研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 細胞核のサイズ制御2018

    • Author(s)
      原 裕貴
    • Organizer
      第2回IoLシンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Nuclear size scaling with cell size and DNA content in Xenopus2018

    • Author(s)
      原 裕貴
    • Organizer
      56th Annual Meeting of the Biophysical Society of Japan
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 核内DNA量に依存した核のサイズ制御2018

    • Author(s)
      原 裕貴
    • Organizer
      HiHA&HIRAKU 若手研究者 Workshop
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Nuclear size scaling with DNA content in Xenopus2018

    • Author(s)
      Yuki Hara
    • Organizer
      17th international Xenopus Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] オルガネラのサイズは細胞内病態のバイオマーカーとなりうるか2018

    • Author(s)
      原 裕貴
    • Organizer
      がんの増殖抑制 公開講演会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Size scaling of the cell nucleus2017

    • Author(s)
      Yuki Hara
    • Organizer
      5th International Symposium of the Mathematics on Chromatin Live Dynamics
    • Place of Presentation
      東広島芸術文化ホール くらら(広島県・東広島市)
    • Year and Date
      2017-03-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] DNA-content-dependent nuclear expansion in Xenopus laevis2017

    • Author(s)
      Heijo Hiroko, Yuki Hara
    • Organizer
      5th International Symposium of the Mathematics on Chromatin Live Dynamics
    • Place of Presentation
      東広島芸術文化ホール くらら(広島県・東広島市)
    • Year and Date
      2017-03-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 細胞内空間の制約による細胞核の大きさ制御機構2017

    • Author(s)
      原 裕貴
    • Organizer
      第8回定量生物学の会年会
    • Place of Presentation
      自然科学研究機構 岡崎カンファレンスセンター(愛知県・岡崎市)
    • Year and Date
      2017-01-08
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] アフリカツメガエルにおけるDNA量依存的な核サイズ制御機構2017

    • Author(s)
      平城 裕子, 原 裕貴
    • Organizer
      2017年度生命科学系学会合同年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] ツメガエル核-細胞質雑種における細胞内構造サイズ制御の不適合性2017

    • Author(s)
      原 裕貴, 平城 裕子
    • Organizer
      第88回日本動物学会大会(富山)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 無細胞再構築系を用いた細胞核のIn vitro再構築とその応用2016

    • Author(s)
      原 裕貴
    • Organizer
      第八回光塾
    • Place of Presentation
      東京工業大学(神奈川県・横浜市)
    • Year and Date
      2016-12-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 細胞内構造体のスケーリングに関する進化細胞生物学的解析2016

    • Author(s)
      原 裕貴
    • Organizer
      第39回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜(神奈川県・横浜市)
    • Year and Date
      2016-11-30
    • Related Report
      2016 Research-status Report
  • [Presentation] Positioning of the nucleus inside the cell regulates the nuclear expansion by changing dynein-based accumulation of membranes2016

    • Author(s)
      Yuki Hara
    • Organizer
      12th International Congress of Cell biology
    • Place of Presentation
      Prague (Czech Republic)
    • Year and Date
      2016-07-21
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ダイニン・微小管による膜の成分の供給が核の大きさの増大速度を制御する2016

    • Author(s)
      原 裕貴
    • Organizer
      第68回日本細胞生物学会大会
    • Place of Presentation
      京都テルサ(京都府・京都市)
    • Year and Date
      2016-06-15
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-12-27  

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