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The study of the mechanism how the exercise affects ovarian functions.

Research Project

Project/Area Number 21K19183
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 42:Veterinary medical science, animal science, and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Sugiura Koji  東京大学, 大学院農学生命科学研究科(農学部), 准教授 (20595623)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsエクソソーム / 卵巣
Outline of Research at the Start

卵巣は、女性ホルモン生産や卵母細胞の生産を担う重要な臓器である。これらの卵巣機能は、個体の運動、栄養状態、周囲の環境やストレスなどに影響を受けるが、具体的なメカニズムは不明である。本申請では、ブタをモデルとして、分泌小胞エクソソームが個体の運動情報を卵巣へ伝達する新たな卵巣機能制御メカニズムを検証する。具体的には、運動状態・定常状態を模倣した骨格筋初代培養上清よりエクソソームを単離し、そのキャラクタライズ、および卵巣細胞への添加培養の影響解析を行う。本研究の成果は、卵巣制御の新たなメカニズムを説明し、エクソソームを介した臓器間コミュニケーションという新たな学問分野の創造につながる。

Outline of Final Research Achievements

In this study, we observed that exosomes present in the serum are indeed taken up by the ovaries in mice. The amount of exosome uptake by the ovaries varied depending on the origin of the exosomes. Furthermore, we found that there is no ovbious difference in the gene expression related to exosome uptake between porcine and murine ovarian somatic cells. Moreover, as a model for analyzing the effects of serum-derived exosomes on ovarian regulation, we established an in vitro oocyte growth culture system that uses mouse serum instead of the traditionally used fetal bovine serum.

Academic Significance and Societal Importance of the Research Achievements

ブタの卵巣の組織液(卵胞液)に卵巣以外の臓器由来のエクソソームが存在する可能性が、応募者らの研究により明らかとなっていた。しかし、本当に取り込まれるのか、また、取り込まれることの生理的意義については不明でった。本研究では、卵巣外エクソソームが実際に卵巣に取り込まれることを確認した。また細胞レベルでのエクソソーム取り込み機構が、ブタとマウスの卵巣細胞で共通している可能性を見出したことも意義が大きい。さらに、今回確立した培養系を用いることで、血清由来のエクソソームが卵巣の発達や機能制御に与える影響を解析できるようになり、今後さらなる研究の進展が期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Dynamics of extracellular vesicle uptake by mural granulosa cells in mice2024

    • Author(s)
      Edure Taichi、Matsuno Yuta、Matsushita Kodai、Maruyama Natsumi、Fujii Wataru、Naito Kunihiko、Sugiura Koji
    • Journal Title

      Molecular Reproduction and Development

      Volume: 91 Issue: 3

    • DOI

      10.1002/mrd.23737

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Paracrine regulation of granulosa cell development in the antral follicles in mammals2023

    • Author(s)
      Sugiura Koji、Maruyama Natsumi、Akimoto Yuki、Matsushita Kodai、Endo Tsutomu
    • Journal Title

      Reproductive Medicine and Biology

      Volume: 22 Issue: 1

    • DOI

      10.1002/rmb2.12538

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The effect of ACVR1B/TGFBR1/ACVR1C signaling inhibition on oocyte and granulosa cell development during <i>in vitro</i> growth culture2023

    • Author(s)
      AKIMOTO Yuki、FUJII Wataru、NAITO Kunihiko、SUGIURA Koji
    • Journal Title

      Journal of Reproduction and Development

      Volume: 69 Issue: 5 Pages: 270-278

    • DOI

      10.1262/jrd.2023-041

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accumulation of senescent cells in the stroma of aged mouse ovary2023

    • Author(s)
      MARUYAMA Natsumi、FUKUNAGA Isuzu、KOGO Tomoaki、ENDO Tsutomu、FUJII Wataru、KANAI-AZUMA Masami、NAITO Kunihiko、SUGIURA Koji
    • Journal Title

      Journal of Reproduction and Development

      Volume: 69 Issue: 6 Pages: 328-336

    • DOI

      10.1262/jrd.2023-021

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cooperative effects of oocytes and estrogen on the forkhead box L2 expression in mural granulosa cells in mice2022

    • Author(s)
      Ito Haruka、Emori Chihiro、Kobayashi Mei、Maruyama Natsumi、Fujii Wataru、Naito Kunihiko、Sugiura Koji
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 20158-20158

    • DOI

      10.1038/s41598-022-24680-x

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Expression and regulation of estrogen receptor 2 and its coregulators in mouse granulosa cells2022

    • Author(s)
      EMORI Chihiro, KANKE Takuya, ITO Haruka, AKIMOTO Yuki, FUJII Wataru, NAITO Kunihiko, SUGIURA Koji
    • Journal Title

      Journal of Reproduction and Development

      Volume: 68 Issue: 2 Pages: 137-143

    • DOI

      10.1262/jrd.2021-114

    • NAID

      130008142259

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 卵分泌因子による卵巣顆粒膜細胞の分化制御機構2021

    • Author(s)
      伊藤遥,杉浦幸二
    • Journal Title

      Journal of Mammalian Ova Research

      Volume: 38 Pages: 31-38

    • Related Report
      2021 Research-status Report
  • [Presentation] 卵巣顆粒層細胞による細胞外小胞の取り込み機構の研究2023

    • Author(s)
      杉浦幸二、江連泰知、松野雄太、藤井渉、内藤邦彦
    • Organizer
      第131回日本畜産学会大会(帯広畜産大学)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 丸山夏海、 福長一鈴、 藤井渉、 内藤邦彦、 杉浦幸二2023

    • Author(s)
      個体加齢が受精時の卵管機能に与える影響の解析
    • Organizer
      第131回日本畜産学会大会(帯広畜産大学)
    • Related Report
      2023 Annual Research Report
  • [Presentation] ALK5-SMAD2/3 signaling in granulosa cells is required for the acquisition of the oocyte developmental competence.2021

    • Author(s)
      Akimoto Y, Fujii W, Naito K, Sugiura K.
    • Organizer
      54th Annual meeting of society for the study of reproduction
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of fibroblast growth factor signaling on cumulus expansion in mice in vitro.2021

    • Author(s)
      Kanke T, Fujii W, Naito K, Sugiura K.
    • Organizer
      54th Annual meeting of society for the study of reproduction
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Senescent cells accumulate in ovarian stromal region of aged mice.2021

    • Author(s)
      Maruyama N, Fukunaga I, Kogo T, Fujii W, Naito K, Sugiura K.
    • Organizer
      54th Annual meeting of society for the study of reproduction
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-07-13   Modified: 2025-01-30  

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