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Common hormones and mechanisms of luteal regression, ovulation and follicular atresia.

Research Project

Project/Area Number 08671909
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Obstetrics and gynecology
Research InstitutionSapporo Medical University

Principal Investigator

ENDO Toshiaki  School of Medicine, Department of Obstetrics and Gynecology, assistant professor, 医学部, 講師 (90213595)

Co-Investigator(Kenkyū-buntansha) 山本 弘  札幌医科大学, 医学部, 助手 (30210553)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1996: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsLuteal regression / Ovulation / Follicular atresia / GnRH / Apoptosis / Growth hormone / Matrix metalloproteinase / prostaglandin F2α / matrix metallo proteinase / Growth hormone / matrix metalbproteinase
Research Abstract

We investigated common hormones and mechanisms of luteal regression, ovulation and follicular atresia. We previously reported that prolactin (PRL) treatment following bromocryptine (Brom) treatment to superovulated rats caused structural luteolysis, and that this treatment stimulated matrix metalloproteinase activity in involuted corpus luteum and caused apoptosis.
We designed to investigate whether other hormones except PRL may cause structural luteolysis in rats, and also investigated about mechanisms of luteal regression in human. We got some exellent data as below.
Growth hormone treatment following Brom treatment caused structural luteolysis by MMP activation and apoptosis. Gonadotropin releasing hormone agonist (GnRHa) treatment from day 5 through day 9 after hCG injection also caused structural luteolysis in rats. Gelatin zymography, Northem blot analysis revealed that GnRHa treatment stimulated MMP-2, MT-MMP activity.
Extracts of human corpus luteum of late luteal phase had much more activities of MMP-2, MT1-MMP than those of other stages. Tissue inhibitor of metalloproteinse (TIMP)-1 expression of corpus luteum decreased at late luteal phase. However, TIMP-2 expression slightly increased at late luteal phase compared with other stages. It is possible that MT1-MMP activates pro-MMP-2 under the existence of TIMP-2 as previously reported in other kinds of cells.
It became clear that luteal regression, ovulation and follicular atresia have same kinds of mechanisms as mentioned above.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] 木谷 保: "ラット黄体のProlactin誘発structural luteolysisにおけるapoptosisの検討" 日本産婦人科学会雑誌. 48. 147-148 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 遠藤 俊明: "生殖細胞シリーズ:15.黄体の形成、維持、退縮機構について" 臨床科学. 32. 459-468 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 北島 義盛: "ラット黄体のglyceroaldehyde-3-phosphate mRNA発現に対するprolactin投与による影響" 日本不妊学会雑誌. 42. 319- (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 後藤 妙恵子: "GnRHaによるrat structural luteolysisにおけるMT-MMPの関与について" 日本産婦人科学会雑誌. 49. S405- (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Toshiaki Endo: "Effects of estradiol and an aromatase inhibitor on progesterone production in human cultured luteal cells." Gynecological Endocrinology. (in press). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tamotsu Kiya: "Apoptosis and PCNA expression induced by prolactin in structural involution of the rat corpus lutlteum" Journal of Endocrinological Investigation. (in press). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tamotsue Kiya: "Apoptosis in prolactin-induced structural luteolysis in rats" Acta obstet Gynecol Jpn. 48. 147-148 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Toshiaki Endo: "Formation, maintenance and regression of corpus luteum" Clinical Science. 32. 459-468 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tamotsue Kiya: "Cell cycle-dependent apoptosis in prolactin-induced structural luteolysis in rats." Acta Obst Gynaec Jpn. 49. S323 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Taeko Goto.: "MMP activation in GnRHa-induced structural luteolysis in rats." Acta Obst Gynaec Jpn. 49. S405 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshimitsu Kitajima: "Effects of prolactin treatment on glyceroaldehyde-3-phosphate dehydrogenase mRNA in rat corpus luteum." Jpn J Fertil Steril. 42. 319 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Toshiaki Endo: "Effects of estradiol and aromatase inhibitor on progesterone production in human cultured luteal cells." Gynecol Endocrinol. in press. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tamotsu Kiya: "Apoptosis and PCNA expression induced by prolactin in structural involution of the rat corpus luteum." J Endocrinol Invest. in press. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 木谷 保: "ラット黄体のPRL induced structural luteolysis における細胞周期依存型アポトーシスについて" 日本産婦人科学会雑誌. 49. S323 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 後藤妙恵子: "GnRHaによるrat structural luteolysisにおけるMT-MMPの関与について" 日本産婦人科学会雑誌. 49. S405 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 北島義盛: "ラット黄体のglyceralckhyde-3-phosphote dehydrogenase mRNA発現に対するprolactin投与による影響" 日本不妊学会雑誌. 42・3. 319 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Toshiaki Endo: "Effects of estradiol and an aromatase inhibitor on progesterone production in human cultured luteal cells" Gynocdogical Endocrnology. (in press). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Tamotsu Kiya: "Apoptosis and PCNA expression induced by prolactin in structural invo lution of the rat corpus luteum." Joarnal of Endocrinological Investigation. (in press). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 木谷 保: "ラット黄体のプロラクチン誘発Structural luteolysisにおけるアポトーシスの検討" 日本産科婦人科学会雑誌. 48. 147-148 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 遠藤俊明: "生殖細胞シリーズ:15.黄体の形勢・維持・退縮機構について" 臨床医学. 32. 459-468 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 遠藤俊明: "過酸化水素のヒト黄体化顆粒膜細胞内ATP濃度への影響ならびにATPの濃度変化とluteolyticeffectとの関連性について" 日本産科婦人科学会雑誌. 48. 1158-1159 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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