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Elucidation of the endocrine regulatory mechanism common in vertebrate ovulation.

Research Project

Project/Area Number 23687009
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Morphology/Structure
Research InstitutionHokkaido University

Principal Investigator

OGIWARA Katsueki  北海道大学, 理学(系)研究科(研究院), 助教 (00422006)

Project Period (FY) 2011-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥28,080,000 (Direct Cost: ¥21,600,000、Indirect Cost: ¥6,480,000)
Fiscal Year 2013: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2012: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2011: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Keywordsovulation / endocrinology / LH / progesterone / ovary / 排卵 / メダカ / 黄体形成ホルモン / プロゲステロン / プロテアーゼ / 内分泌 / 卵巣
Research Abstract

The aim of the present study is to elucidate the endocrine regulatory mechanism of ovulation in the medaka. The study disclosed a mechanism for inducing nuclear progestin receptor (nPR), which was the essential transcription factor for induction of ovulation-associated genes. It was revealed that nPR was involved in the induction of MT2-MMP and PAI-1, both which played an important role on ovulation. An expression pattern of the synthesizing enzymes for a maturation inducing hormone (17a, 20b-DHP), a ligand of nPR, was elucidated. Based on the results, we propose the novel model of the endocrine regulatory mechanism for inducing the ovulation-related enzymes responsible for degradation of follicle layer during ovulation.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (20 results)

All 2014 2013 2012 2011

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (12 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Luteinizing hormone- induced expression of Ptger4b, a prostaglandin E2 receptor indispensable for ovulation of the medaka Oryzias latipes, is regulated by a genomic mechanism involving nuclear progestin receptor2014

    • Author(s)
      Hagiwara A., Ogiwara K., Katsu Y., Takahashi T
    • Journal Title

      Biol. Reprod

      Volume: (in press)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Luteinizing Hormone-Induced Expression of Ptger4b, a Prostaglandin E2 Receptor Indispensable for Ovulation of the Medaka Oryzias latipes, Is Regulated by a Genomic Mechanism Involving Nuclear Progestin Receptor.2014

    • Author(s)
      Hagiwara A., Ogiwara K., Katsu Y., Takahashi T.
    • Journal Title

      Biol. Reprod.

      Volume: In press

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent advances in the understanding of teleost medaka ovulation : The roles of proteases and prostaglandins2013

    • Author(s)
      Takahashi T., Fujimori C., Hagiwara A., Ogiwara K
    • Journal Title

      Zoolog. Sci

      Volume: 30(4) Issue: 4 Pages: 239-247

    • DOI

      10.1095/biolreprod.111.093880

    • NAID

      40019626212

    • Related Report
      2013 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of luteinizing hormone and luteinizing hormone receptor and their indispensable role in the ovulatory process of the medaka2013

    • Author(s)
      Ogiwara K, Fujimori C, Rajapakse S, Takahashi T.
    • Journal Title

      PLoS One

      Volume: 8 Issue: 1 Pages: e54482-e54482

    • DOI

      10.1371/journal.pone.0054482

    • Related Report
      2013 Final Research Report 2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent Advances in the Understanding of Teleost Medaka Ovulation: The Roles of Proteases and Prostaglandins.2013

    • Author(s)
      Takahashi T., Fujimori C., Hagiwara A., Ogiwara K.
    • Journal Title

      Zoological Science

      Volume: 30(4) Issue: 4 Pages: 239-247

    • DOI

      10.2108/zsj.30.239

    • NAID

      40019626212

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New evidence for the involvement of prostaglandin receptor EP4b in ovulation of the medaka, Oryzias latipes2012

    • Author(s)
      Fujimori C., Ogiwara K., Hagiwara A., Takahashi T
    • Journal Title

      Mol. Cell. Endocrinol

      Volume: 362(1-2) Pages: 76-84

    • NAID

      120004650807

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Expression of cyclooxygenase-2 and prostaglandin receptor EP4b mRNA in the ovary of the medaka fish, Oryzias latipes : Possible involvement in ovulation2011

    • Author(s)
      Fujimori C., Ogiwara K., Hagiwara A., Rajapakse S., Kimura A., Takahashi
    • Journal Title

      Molecular and Cellular Endocrinology

      Volume: 332(1-2) Pages: 67-77

    • NAID

      120002834743

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Presentation] メダカ排卵関連遺伝子の発現に関与する核内プロゲスチン受容体nPRの発現誘導機構2013

    • Author(s)
      荻原克益
    • Organizer
      日本比較内分泌学会
    • Place of Presentation
      宮崎市民プラザ(宮崎市)
    • Year and Date
      2013-10-25
    • Related Report
      2013 Final Research Report
  • [Presentation] nPRによるメダカ排卵酵素MT2-MMPの発現誘導の解明2013

    • Author(s)
      荻原克益
    • Organizer
      日本動物学会
    • Place of Presentation
      岡山大学(岡山市)
    • Year and Date
      2013-09-26
    • Related Report
      2013 Final Research Report
  • [Presentation] nPRによるメダカ排卵酵素MT2-MMPの誘導機構の解明2013

    • Author(s)
      荻原克益
    • Organizer
      日本動物学会
    • Place of Presentation
      岡山大学 (岡山市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] メダカ排卵関連遺伝子の発現誘導に関与する核内プロゲスチン受容体nPRの発現誘導機構2013

    • Author(s)
      荻原克益
    • Organizer
      日本比較内分泌学会
    • Place of Presentation
      宮崎市民プラザ (宮崎市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] メダカ排卵酵素MT2-MMP誘導の内分泌制御機構2012

    • Author(s)
      荻原克益
    • Organizer
      日本動物学会
    • Place of Presentation
      福井大学(福井市
    • Year and Date
      2012-11-30
    • Related Report
      2013 Final Research Report
  • [Presentation] A proposed model for molecular mechanism of follicle rupture during medaka ovulation2012

    • Author(s)
      荻原克益
    • Organizer
      Asia and Oceania Society for Comparative Endocrinology
    • Place of Presentation
      (マレーシア・クアラルンプール)
    • Year and Date
      2012-03-04
    • Related Report
      2013 Final Research Report
  • [Presentation] A proposed model for molecular mechanism of follicle rupture during medaka ovulation2012

    • Author(s)
      Ogiwara Katsueki
    • Organizer
      The 7th Asia and Oceania Society for Comparative Endocrinology
    • Place of Presentation
      サンウェイリゾートホテル(マレーシア)(招待講演)
    • Year and Date
      2012-03-04
    • Related Report
      2011 Annual Research Report
  • [Presentation] メダカ排卵酵素MT2-MMP誘導の内分泌制御機構2012

    • Author(s)
      荻原克益
    • Organizer
      日本比較内分泌学会第37回大会
    • Place of Presentation
      福井大学(福井市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] メダカ排卵酵素MT2-MMPの発現誘導に関与するnPRの発現誘導-新規誘導経路の発見2011

    • Author(s)
      荻原克益
    • Organizer
      日本比較内分泌学会
    • Place of Presentation
      都道府県会館(東京都千代田区)
    • Year and Date
      2011-11-23
    • Related Report
      2013 Final Research Report
  • [Presentation] メダカ卵巣におけるメラトニン生合成酵素の発現解析2011

    • Author(s)
      荻原克益
    • Organizer
      日本動物学会
    • Place of Presentation
      旭川市大雪アリーナ(旭川市)
    • Year and Date
      2011-09-21
    • Related Report
      2013 Final Research Report
  • [Presentation] メダカ卵巣におけるメラトニン生合成酵素の発現解析2011

    • Author(s)
      荻原克益
    • Organizer
      日本動物学会第82回大会
    • Place of Presentation
      旭川市大雪アリーナ(旭川市)(招待講演)
    • Year and Date
      2011-09-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] メダカ排卵酵素MT2-MMPの発現誘導に関与するnPRの誘導機構-新規誘導経路の発見2011

    • Author(s)
      荻原克益
    • Organizer
      日本比較内分泌学会第36回大会
    • Place of Presentation
      都道府県会館(東京都)(招待講演)
    • Related Report
      2011 Annual Research Report
  • [Patent(Industrial Property Rights)] MODIFIED ENTEROPEPTIDASE POLYPEPTIDES2011

    • Inventor(s)
      Ogiwara, K. Takahashi, T
    • Industrial Property Rights Holder
      北海道大学
    • Industrial Property Rights Type
      特許
    • Acquisition Date
      2011-09-06
    • Related Report
      2013 Final Research Report
    • Overseas

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Published: 2011-04-06   Modified: 2019-07-29  

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