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Elucidation of the mechanism behind interruption of metaphase I in oocytes

Research Project

Project/Area Number 26712022
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Animal production science
Research InstitutionHiroshima University (2015-2016)
Tohoku University (2014)

Principal Investigator

HOSHINO YUMI  広島大学, 生物圏科学研究科, 助教 (10451551)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords卵子 / 第一減数分裂中期 / 紡錘体 / 染色体 / Pin1 / 第二減数分裂中期 / 受精卵 / 生殖科学 / 卵巣 / 生殖医療 / 受精胚 / 加齢
Outline of Final Research Achievements

Mammalian oocytes mature in the ovary and ovulation occurs during the metaphase II stage, when the oocytes can be fertilized. It was recently reported that meiotic maturation is interrupted by factors such as aging, which hinders fertilization. To elucidate the reason why meiotic maturation stops in oocytes, in this study, we identified the key functional factor controlling meiotic maturation, and clarified that the proline isomerization enzyme Pin1 is indispensable for the progress of meiotic maturation. This information would help in the production of high-quality oocytes.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (8 results)

All 2016 2015

All Presentation (8 results) (of which Invited: 2 results)

  • [Presentation] プロリン異性化酵素Pin1は受精卵の卵割に機能する2016

    • Author(s)
      星野由美、宮本拓真、川合智子、内田隆史、島田昌之
    • Organizer
      第39回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2016-11-30
    • Related Report
      2016 Annual Research Report
  • [Presentation] プロリン異性化酵素Pin1による着床前初期胚発生に果たす役割2016

    • Author(s)
      星野由美、川合智子、内田隆史、島田昌之
    • Organizer
      第34回日本受精着床学会
    • Place of Presentation
      軽井沢プリンスホテルウエスト
    • Year and Date
      2016-09-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 卵子の形成・成熟、受精後の初期胚発生過程におけるプロリン異性化酵素Pin1の発現と機能2016

    • Author(s)
      星野由美、川合智子、内田隆史、島田昌之
    • Organizer
      第57回日本卵子学会
    • Place of Presentation
      朱鷺メッセ 新潟コンベンションセンター
    • Year and Date
      2016-05-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] 卵子の形成・成熟、受精後の初期胚発生過程におけるプロリン異性化酵素Pin1の発現と機能2016

    • Author(s)
      星野由美
    • Organizer
      第57回日本卵子学会
    • Place of Presentation
      朱鷺メッセ 新潟コンベンションセンター(新潟)
    • Year and Date
      2016-05-14
    • Related Report
      2015 Annual Research Report
  • [Presentation] 着床しやすい胚の特徴と選び方2016

    • Author(s)
      星野由美
    • Organizer
      第39回家畜診療技術研究会
    • Place of Presentation
      NOSAI広島(広島)
    • Year and Date
      2016-03-10
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] How do we select high-quality oocyte?2016

    • Author(s)
      Yumi Hoshino
    • Organizer
      The 15th Research Center for Mathematics on Chromatin Live Dynamics (RcMcD) Seminar
    • Place of Presentation
      Hiroshima University
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] マウス卵子および初期胚におけるPin1の局在解析2015

    • Author(s)
      星野由美
    • Organizer
      第56回日本卵子学会
    • Place of Presentation
      栃木県総合分化センター
    • Year and Date
      2015-05-30 – 2015-05-31
    • Related Report
      2014 Annual Research Report
  • [Presentation] マウス卵子および初期胚におけるPin1の局在解析2015

    • Author(s)
      星野由美
    • Organizer
      第56回日本卵子学会
    • Place of Presentation
      栃木県総合文化センター(栃木)
    • Year and Date
      2015-05-30
    • Related Report
      2015 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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