• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

The mechanisms of the folliculogenesis in the neonatal mouse ovary

Research Project

Project/Area Number 18K06315
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44040:Morphology and anatomical structure-related
Research InstitutionYokohama City University

Principal Investigator

SATO TOMOMI  横浜市立大学, 生命ナノシステム科学研究科(八景キャンパス), 教授 (40295506)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords卵胞形成 / エストロゲン / 合成エストロゲン / アクチビン / ヘッジホッグ / エストロゲン受容体 / 卵巣 / マウス
Outline of Final Research Achievements

A follicle consists of single oocyte and granulosa cells, and it is essential for the female reproduction. Primordial follicles are formed soon after birth, however, the process of folliculogenesis remains unclear. This study is aimed to examine the role of several growth factors in folliculogenesis using the organ-culture system. Activin signaling is involved with early follicle growth, but not folliculogenesis in the neonatal mouse ovary. Inhibition of FGFR showed no effect on follicullogenesis, but it resulted in a suppression of follicle growth. Hedgehog signaling is involved with basement membrane remodeling during folliculogenesis even before thecal cell differentiation. These results provide important information to understand folliculogenesis and early follicle growth in the mouse ovary.

Academic Significance and Societal Importance of the Research Achievements

卵母細胞の成長、成熟、減数分裂の制御には、顆粒膜細胞に包まれた卵胞構造が必須である。いったん形成された卵胞は生涯にわたり卵巣内に貯蔵されることから、卵胞形成過程が正常に進行することは、メスの生殖活動において非常に重要である。これまでの研究から、卵胞形成過程は多くの因子による複雑な遺伝子カスケードに従って進行しており、性ホルモンや女性ホルモン様作用をもつ化学物質に曝露されると、その過程が遺伝子発現レベルでかく乱されることが示されている。本研究により卵胞形成および初期の卵胞成長に関与するいくつかの因子の作用が明らかとなり、不妊の原因を解明するにあたり基礎的知見を提供した。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] New frontiers of developmental endocrinology opened by researchers connecting irreversible effects of sex hormones on developing organs2021

    • Author(s)
      Iguchi Taisen、Sato Tomomi、Nakajima Tadaaki、Miyagawa Shinichi、Takasugi Noboru
    • Journal Title

      Differentiation

      Volume: 118 Pages: 4-23

    • DOI

      10.1016/j.diff.2020.10.003

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hedgehog signaling regulates the basement membrane remodeling during folliculogenesis in the neonatal mouse ovary2020

    • Author(s)
      Terauchi Karin J.、Miyagawa Shinichi、Iguchi Taisen、Sato Tomomi
    • Journal Title

      Cell and Tissue Research

      Volume: 381 Issue: 3 Pages: 555-567

    • DOI

      10.1007/s00441-020-03222-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hedgehog signaling regulates the basement membrane remodeling during folliculogenesis in the neonatal mouse ovary.2020

    • Author(s)
      Terauchi K.J., S. Miyagawa, T. Iguchi and T. Sato
    • Journal Title

      Cell and Tissue Research

      Volume: in press

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Diethylstilbestrol alters the expression of activins in the neonatal mouse ovary in vitro.2019

    • Author(s)
      Oikawa S., S. Kobayashi, S. Miyagawa, T. Iguchi and T. Sato
    • Journal Title

      In Vivo

      Volume: 印刷中

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The involvement of granulosa cells in the regulation by gonadotropins of Cyp17a1 in theca cells.2018

    • Author(s)
      Kakuta H., T. Iguchi and T. Sato
    • Journal Title

      In Vivo

      Volume: 32 Issue: 6 Pages: 1387-1401

    • DOI

      10.21873/invivo.11391

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] The role of activin signaling in the neonatal mouse ovary.2020

    • Author(s)
      Ushinohama C. and T. Sato
    • Organizer
      The 91st Annual meeting of Zoological Society of Japan
    • Related Report
      2020 Annual Research Report
  • [Presentation] Regulation of collagen in the uterus during postpartum period2020

    • Author(s)
      Shimada I. and T. Sato
    • Organizer
      The 91st Annual meeting of Zoological Society of Japan
    • Related Report
      2020 Annual Research Report
  • [Presentation] Amphiregulin can regulate the expression of Cyp17a1 in cultured mouse theca cells.2019

    • Author(s)
      Kakuta H. and T. Sato
    • Organizer
      The 52nd Annual meeting of Society for the Study of Reproduction
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Involvement of estrogen receptor beta with cell proliferation during postpartum uterine regeneration period.2019

    • Author(s)
      Sato T., Miyamori M. and Y. Yamashita
    • Organizer
      The 52nd Annual meeting of Society for the Study of Reproduction
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] The morphological changes in the mouse uterus after parturition.2019

    • Author(s)
      Shimada I. and T. Sato
    • Organizer
      The 91st Annual meeting of Zoological Society of Japan
    • Related Report
      2019 Research-status Report
  • [Presentation] Involvement of Activin signaling with polyovular follicles induced by diethylstilbestrol in the neonatal mouse ovary.2019

    • Author(s)
      Ushinohama C. and T. Sato
    • Organizer
      The 91st Annual meeting of Zoological Society of Japan
    • Related Report
      2019 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi