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Mechanisms of male reproductive tract development regulated by Cxxc5 in the female reproductive tract primordium

Research Project

Project/Area Number 19K07243
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48010:Anatomy-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Harada Masayo  東京医科歯科大学, 大学院医歯学総合研究科, 講師(キャリアアップ) (80555756)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords中腎管 / 中腎傍管 / 精管 / 精嚢 / Cxxc5
Outline of Research at the Start

中腎管(将来の精巣上体、精管、精嚢)と中腎傍管(将来の卵管、子宮、膣)は、胎生期に雌雄同様に形成される。その後、雄では中腎管が分化して中腎傍管が消失し、雌では中腎傍管が分化して中腎管が消失する。我々は、CXXC5が中腎管と中腎傍管で強く発現し、中腎傍管で特異的にCxxc5を欠損させた雄マウスが不妊になることを発見した。本研究では、中腎傍管特異的Cxxc5欠損雄マウスの雄性生殖管の形態形成異常と不妊の分子機構を解明することで、雄性生殖管形成に対する雌性生殖管の協調的な発生機構を明らかにする。本研究の成果は、ヒトで男性不妊をもたらす中腎傍管嚢胞の発症機序の解明に寄与する可能性がある。

Outline of Final Research Achievements

The Wolffian duct (future epididymis, vas deference, seminal vesicle, and ampullary gland) and Mullerian duct (future oviduct, uterus, and vagina) form similarly in males and females during embryonic development. In male embryo, the Mullerian duct degenerates and the Wolffian duct differentiates. Whereas, in female embryo, the Wolffian duct degenerates and the Mullerian duct differentiates. We revealed that the loss of Cxxc5 in the Mullerian duct induced distal Mullerian duct elongation defects and the Mullerian ductal tip persistence at abnormally rostral position leading to morphological defects of distal reproductive tract organs such as distal vas deference, seminal vesicle, and ampullary gland in male mice. The sperm were ejaculated through a detour in seminal vesicle, and thus might lost their fertility in those infertile mutant mice.

Academic Significance and Societal Importance of the Research Achievements

過去の研究では、雄性不妊の原因について雄性生殖管にのみ着目しているが、本研究は、雄性不妊が雌性生殖管(中腎傍管)の発生異常によりもたらされるという新機構を提唱するものである。中腎傍管特異的Cxxc5欠損雄マウスが示す中腎傍管の残存は、ヒトで、男性不妊をもたらす中腎傍管嚢胞の症例と類似している。しかしながら、なぜ男性で中腎傍管が残存するのか、女性生殖管原基である中腎傍管の残存がなぜ男性不妊をもたらすのか、その機序は分かっていない。よって、本研究が、ヒト男性不妊症である中腎傍管嚢胞の発症機序解明に貢献できる可能性がある。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2021 2020 2019

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (9 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Ovotesticular disorders of sex development in FGF9 mouse models of human synostosis syndromes2020

    • Author(s)
      Bird Anthony D、Croft Brittany M、Harada Masayo、Tang Lingyun、Zhao Liang、Ming Zhenhua、Bagheri-Fam Stefan、Koopman Peter、Wang Zhugang、Akita Keiichi、Harley Vincent R
    • Journal Title

      Human Molecular Genetics

      Volume: 29 Issue: 13 Pages: 2148-2161

    • DOI

      10.1093/hmg/ddaa100

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mouse fibroblast growth factor 9 N143T mutation leads to wide chondrogenic condensation of long bones2020

    • Author(s)
      Harada Masayo、Akita Keiichi
    • Journal Title

      Histochemistry and Cell Biology

      Volume: 153 Issue: 4 Pages: 215-223

    • DOI

      10.1007/s00418-020-01844-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Coexistence of Dense and Sparse Areas in the Longitudinal Smooth Muscle of the Anal Canal: Anatomical and Histological Analyses Inspired by Magnetic Resonance Images2019

    • Author(s)
      Muro Satoru、Kagawa Ryuzaburo、Habu Maika、Ka Hiromasa、Harada Masayo、Akita Keiichi
    • Journal Title

      Clinical Anatomy

      Volume: 33(4) Issue: 4 Pages: 619-626

    • DOI

      10.1002/ca.23467

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Various significant connections of the male pelvic floor muscles with special reference to the anal and urethral sphincter muscles2019

    • Author(s)
      Suriyut Janyaruk、Muro Satoru、Baramee Phichaya、Harada Masayo、Akita Keiichi
    • Journal Title

      Anatomical Science International

      Volume: 95 Issue: 3 Pages: 305-312

    • DOI

      10.1007/s12565-019-00521-2

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Three muscle slings of the pelvic floor in women: an anatomic study2019

    • Author(s)
      Baramee Phichaya、Muro Satoru、Suriyut Janyaruk、Harada Masayo、Akita Keiichi
    • Journal Title

      Anatomical Science International

      Volume: 95 Issue: 1 Pages: 47-53

    • DOI

      10.1007/s12565-019-00492-4

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anatomy of the smooth muscle structure in the female anorectal anterior wall: convergence and anterior extension of the internal anal sphincter and longitudinal muscle2019

    • Author(s)
      Muro S.、Tsukada Y.、Harada M.、Ito M.、Akita K.
    • Journal Title

      Colorectal Disease

      Volume: 21 Issue: 4 Pages: 472-480

    • DOI

      10.1111/codi.14549

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 男性の直腸肛門管前方領域における平滑筋構造の解析2021

    • Author(s)
      室生暁、塚田祐一郎、Junyaluk Suriyut、原田理代、伊藤雅昭、秋田恵一
    • Organizer
      第30 回骨盤外科機能温存研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Mouse Fgf9N143T leads to cartilage widening, resulting in widened long bones2021

    • Author(s)
      Masayo Harada, Keiichi Akita
    • Organizer
      第126回日本解剖学会総会・全国学術集会 第98回日本生理学会大会合同大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 線維芽細胞増殖因子9のN143T変異は長管骨の軟骨原基を太くする2021

    • Author(s)
      原田理代、秋田恵一
    • Organizer
      第33回日本軟骨代謝学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Mouse fibroblast growth factor 9 N143T mutation leads to wide chondrogenic condensation of long bones2020

    • Author(s)
      Masayo Harada, Keiichi Akita
    • Organizer
      The 43rd Annual Meeting of the Molecular Biology Society of Japan MBSJ 2020 Online
    • Related Report
      2020 Research-status Report
  • [Presentation] 三次元イメージング技術を用いた総排泄腔分 割の解析:発生異常メカニズムの解明に向けて2020

    • Author(s)
      松丸大輔、村嶋亜紀、宮川信一、原田理代、山田源、中西剛
    • Organizer
      フォーラム2020 衛生薬学 環境トキシコロジー
    • Related Report
      2020 Research-status Report
  • [Presentation] Coexistence of dense and sparse areas in longitudinal smooth muscle of the anal canal inspired by MRI2019

    • Author(s)
      Satoru Muro, Maika Habu, Hiromasa Ka, Ryuzaburo Kagawa, Masayo Harada, Keiichi Akita.
    • Organizer
      International Congress of Anatomia Clinica
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 男性骨盤底の中心領域における平滑筋構造の解析2019

    • Author(s)
      室生暁, Junyaluk Suriyut, 原田理代, 秋田恵一.
    • Organizer
      第23回臨床解剖研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 女性の骨盤底に見られる3つの筋束(スリング)についての解剖学的研究2019

    • Author(s)
      秋田恵一, Baramee Phichaya, 室生暁, Suriyut Janyaruk, 原田理代.
    • Organizer
      第21回日本女性骨盤底医学会
    • Related Report
      2019 Research-status Report
  • [Presentation] MRIで見られる肛門縦走平滑筋層における特徴的な構造の解析2019

    • Author(s)
      室生暁, 羽生舞花, 夏博正, 加川隆三郎, 原田理代, 秋田恵一.
    • Organizer
      第29回骨盤外科機能温存研究会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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