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In vitro construction of bovine endometrium including uterine glands and the study on the machanisms of bovine conceptus development

Research Project

Project/Area Number 19H03105
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42010:Animal production science-related
Research InstitutionOkayama University

Principal Investigator

Kimura Koji  岡山大学, 環境生命科学学域, 教授 (50355070)

Co-Investigator(Kenkyū-buntansha) 松山 秀一  名古屋大学, 生命農学研究科, 准教授 (50455317)
山本 ゆき  岡山大学, 環境生命科学研究科, 准教授 (20645345)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2022: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywordsウシ / 受胎率 / 子宮 / 子宮腺 / 3次元培養 / 胚伸長 / 管腔形成
Outline of Research at the Start

ヒトやマウスに見られないウシの胚伸長には子宮腺の存在が必須と報告されている。この時期のウシ胚の発生・分化については未解明な部分が多く、そのメカニズムを解明するためには、正常な機能を有する3次元的に体外で構築された子宮腺を含む子宮内膜と胚との共培養が必要とされる。本研究では子宮腺管腔形成メカニズムを解明することにより正常な機能を有する子宮腺を作出し、これを有する体外構築子宮内膜組織を用いてウシ伸長胚の発生分化メカニズムを解明する。

Outline of Final Research Achievements

We isolated uterine glands from bovine endometrium and cultured them in Matrigel supplemented with a growth factor. The glands exhibited elongation and demonstrated a morophology similar to those found in vivo, but cell stratification was observed. Addition of Type I collagen to the Matrigel promoted gland elongation, but no changes were observed in cell stratification, and the gene expression of secretory proteins differed from those of uterine glands in vivo. Further research is needed for the implovement in vitro construction of bovine uterine glands. On the other hand, administration of progesterone to newborn calves immediately after birth resulted in successful generation of uterine knockout cattle. This achievement holds potential for contributing to the future elucidation of uterine gland function.

Academic Significance and Societal Importance of the Research Achievements

胚移植において胚は子宮に移植されてからすぐに死滅すると考えられており、子宮内膜の機能がウシ胚の生存に大きく影響する。ウシ胚は子宮腺から分泌される様々な物質により成長するため、子宮腺機能の解明は胚の生存、ひいては受胎率向上技術開発にとって重要な研究課題である。本研究では低受胎要因解明のため体内と同じ機能を有する体外ウシ子宮腺の構築を試みた。その結果、まだ不完全ではあるがかなり体内のものと類似した子宮腺様構造の形成に成功した。さらに生後すぐにプロジェステロンを投与することによって子宮腺欠損個体の作出にも成功しており、これらの成果は子宮腺機能の解明ひいては受胎率向上技術の開発に貢献する。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (11 results)

All 2022 2021 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Evaluation of bovine uterine gland functions in 2D and 3D culture system2022

    • Author(s)
      SUGINO Yosuke、SATO Taiki、YAMAMOTO Yuki、KIMURA Koji
    • Journal Title

      Journal of Reproduction and Development

      Volume: 68 Issue: 4 Pages: 254-261

    • DOI

      10.1262/jrd.2022-029

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Alteration of chemokine production in bovine endometrial epithelial and stromal cells under heat stress conditions2020

    • Author(s)
      Shunsuke Sakai Toshimitsu Hatabu Yuki Yamamoto Koji Kimura
    • Journal Title

      Physiological Reports

      Volume: 8 Issue: 22

    • DOI

      10.14814/phy2.14640

    • NAID

      120006951263

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 上皮成長因子による3次元培養下でのウシ子宮腺の形態学的変化2022

    • Author(s)
      杉野耀亮、佐藤太紀、藤原希、木村康二
    • Organizer
      第45回日本分子生物学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] EFFECTS OF THREE-DIMENSIONAL CULTURE ON BOVINE UTERINE GLANDS2022

    • Author(s)
      Yosuke Sugino, Taiki Sato, Nozomi Fujiwara, Koji Kimura
    • Organizer
      THE 4th INTERNATIONAL CONFERENCE ON SUSTAINABLE AGRICULTURE AND ENVIRONMENT
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ウシ子宮腺の体外構築に関わる因子を求めて2022

    • Author(s)
      杉野耀亮、佐藤太紀、山本ゆき、木村康二
    • Organizer
      おかやまバイオアクティブ研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Evaluation of 3D-culture system of bovine oviductal epithelial cells based on morphology of the cycts.2021

    • Author(s)
      Yosuke Sugino, Sayaka Ito, Yuki Yamamoto, Koji Kimura
    • Organizer
      SSR 54th Annual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3次元培養におけるウシ子宮腺様構造の形成と関与する因子2021

    • Author(s)
      杉野耀亮、佐藤太紀、藤原 希、山本ゆき、木村康二
    • Organizer
      第 44 回日本分子生物学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Formation of bovine uterine gland like structure in in vivo 3D culture system.2021

    • Author(s)
      Yosuke Sugino, Taiki Sato, Nozomi Fujiwara, Yuki Yamamoto, Koji Kimura
    • Organizer
      International Symposium on Animal Bioscience
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3次元培養したウシ卵管上皮細胞は生体組織とは異なる特有の性質を持つ2021

    • Author(s)
      杉野耀亮、伊藤さやか、山本ゆき、木村康二
    • Organizer
      第 114 回日本繁殖生物学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Attempt to establish of in vitro bovine oviductal epithelial cells model for ciliogenesis.2021

    • Author(s)
      Yosuke Sugino, Yuki Yamamoto, Koji Kimura
    • Organizer
      2nd International Conference on Animal Production for Food Sustainability
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 体外での子宮腺構築を目指した子宮腺の2次元および3次元培養における胚成長関連遺伝子発現2019

    • Author(s)
      佐藤太紀、酒井駿介、山本ゆき、木村康二
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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