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Molecular mechanisms for celllular wound-healing

Research Project

Project/Area Number 25860219
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field General medical chemistry
Research InstitutionNagoya City University

Principal Investigator

KEIKO Kono  名古屋市立大学, 医学(系)研究科(研究院), 講師 (30632723)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords細胞創傷治癒 / 分裂老化 / 出芽酵母 / 細胞老化 / 細胞・組織 / ストレス / シグナル伝達 / タンパク質
Outline of Final Research Achievements

Cellular wound-healing, enabling the repair of plasma membrane damage, is frequent in nature. Despite its ubiquitous usage, the underlying molecular mechanisms are poorly understood. Here we report a genome-wide screen to identify biological processes required for cellular wound-healing in yeast. 109 out of 6,032 mutations screened exhibited cellular wounding-specific lethality. Based on the screen, we uncovered a previously unappreciated link between cellular wound-healing and replicative aging: senescence determined by the number of cell division. Plasma membrane damage and subsequent damage repair promoted reorganization of phospholipids near the damage site. The plasma membrane reorganization accelerated replicative aging. Thus, we propose that cellular wound-healing mediated PS exposure on the plasma membrane outer leaflet is an evolutionary conserved mechanism promoting cellular senescence in eukaryotes.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (13 results)

All 2015 2014 2013

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (11 results) (of which Invited: 4 results)

  • [Journal Article] 細胞創傷治癒 その分子機構と老化との関連2015

    • Author(s)
      河野恵子
    • Journal Title

      化学と生物

      Volume: -

    • NAID

      130005431476

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local and Acute Disruption of the Yeast Cell Surface.2015

    • Author(s)
      Kono K, Okada H, and Ohya Y.
    • Journal Title

      CSHL protocols

      Volume: -

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] 細胞創傷治癒におけるユビキチンの役割2015

    • Author(s)
      河野恵子
    • Organizer
      日本農芸化学会2014年度大会
    • Place of Presentation
      岡山大学(岡山県岡山市)
    • Year and Date
      2015-03-29
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] プロテインフォスファターゼ1は分裂面におけるフォーミンの入れ替わりと収縮環形成を促進する2014

    • Author(s)
      折井みなみ、河野恵子、温 欣宜、中西 真
    • Organizer
      第37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
      2014-11-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] 細胞創傷治癒 その分子機構と老化との関連2014

    • Author(s)
      河野恵子
    • Organizer
      第21回酵母合同シンポジウム
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2014-09-04
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] PP1依存的なフォーミンの交替は収縮環形成を促進する2014

    • Author(s)
      折井みなみ、河野恵子、温 欣宜、中西 真
    • Organizer
      酵母遺伝学フォーラム第48回研究報告会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2014-09-01
    • Related Report
      2014 Annual Research Report
  • [Presentation] 細胞創傷治癒 ーその分子機構と老化との関連ー2014

    • Author(s)
      河野恵子
    • Organizer
      第21回酵母合同シンポジウム
    • Place of Presentation
      東京大学(東京都)
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Proteasomal Degradation Resolves Competition between Cell Polarization and Cellular Wound-healing2013

    • Author(s)
      Keiko Kono
    • Organizer
      8th Aso International Meeting
    • Place of Presentation
      ホテルグリーンピア南阿蘇(熊本)
    • Related Report
      2013 Research-status Report
  • [Presentation] Proteasomal Degradation Resolves Competition between Cell Polarization and Cellular Wound Healing.2013

    • Author(s)
      Keiko Kono
    • Organizer
      The 35th Naito Conference
    • Place of Presentation
      シャトレーゼガトーキングダムサッポロ(北海道)
    • Related Report
      2013 Research-status Report
  • [Presentation] 直鎖状アクチン重合因子フォーミンの交替は細胞質分裂に必要である2013

    • Author(s)
      河野恵子
    • Organizer
      酵母遺伝学フォーラム第46回研究報告会
    • Place of Presentation
      東北学院大学(宮城県)
    • Related Report
      2013 Research-status Report
  • [Presentation] Proteasomal degradation downregulates linear actin nucleation and polarized secretion to enter and exit from cellular wound-healing2013

    • Author(s)
      Keiko Kono
    • Organizer
      Cold Spring Harbor Yeast Cell Biology
    • Place of Presentation
      Cold Spring Harbor Laboratory (New York, USA)
    • Related Report
      2013 Research-status Report
  • [Presentation] 酵母で明らかにする、 細胞が傷を治すメカニズム2013

    • Author(s)
      河野恵子
    • Organizer
      分子生物学会前夜祭・酵母シンポジウム
    • Place of Presentation
      岡山大学(岡山県)
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 酵母で明らかにする、細胞が傷を治すメカニズム2013

    • Author(s)
      河野恵子
    • Organizer
      第36回日本分子生物学会年会
    • Place of Presentation
      神戸ポートアイランド(兵庫県)
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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