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Morphogenesis in the connection between the testis and epididymis in vertebrates

Research Project

Project/Area Number 19K16483
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Omotehara Takuya  東京医科大学, 医学部, 講師 (40800545)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords精巣輸出管 / 中腎細管 / 中腎 / 三次元再構築 / 比較形態学 / 発生 / 精巣 / 精巣網 / Ad4BP/Sf1 / sequential IHC / Ad4BP/SF-1 / 脊椎動物 / 形態形成 / 精路
Outline of Research at the Start

予備的検討からマーカーとして同定した遺伝子を利用することで,「マウスにおける精巣―精巣上体間の接続に関与するシグナリングの解析」を行う。並行して,接続の時期や部位の同定を含めた「各脊椎動物種における精路形成機構の相同性の解析」を行う。それらの結果から,脊椎動物において保存された「精巣―精巣上体間の接続に関わる因子」を同定し,精路形成機構の共通点=基本原理を明らかにする。

Outline of Final Research Achievements

It is suggested that the site of connection between the rete cells and the mesonephric duct in vertebrates has shifted during evolution from the opening of the mesonephric tubules on the surface of the mesonephros (nephrostome) to Bowman's capsule (tip of mesonephric tubules). Additionally, this study revealed that the lateral kidney canal, which has been thought not to form in mammals, occurs as a population of rete cells. The lateral kidney canal is suggested to be incorporated into the testis and differentiate into the postnatal rete testis.

Academic Significance and Societal Importance of the Research Achievements

精子を運ぶ経路(精路)の構造は脊椎動物種によって大きく異なり,各動物種の繁殖環境に適応した構造となっていることが考えられる。本研究課題では,両生類・鳥類・哺乳類において精細管から精巣上体に至る経路の形成過程を解析し,脊椎動物における精路形成機構の進化の一端を明らかにした。これらの成果は今後の分子学的解析の基盤となり,脊椎動物における精路形成機構に関する進化学研究がさらに発展することが期待される。

Report

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

    (29 results)

All 2022 2021 2020 2019

All Journal Article (21 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 21 results,  Open Access: 7 results) Presentation (8 results)

  • [Journal Article] Characteristic expression of CGRP and osteogenic and vasculogenic markers in the proximal and distal regions of the rib during male mouse development2022

    • Author(s)
      Sawada Iori、Sato Iwao、Kawata Shinichi、Nagahori Kenta、Omotehara Takuya、Yakura Tomiko、Li Zhong-Lian、Itoh Masahiro
    • Journal Title

      Annals of Anatomy - Anatomischer Anzeiger

      Volume: 240 Pages: 151883-151883

    • DOI

      10.1016/j.aanat.2021.151883

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparative anatomy on the development of sperm transporting pathway between the testis and mesonephros2022

    • Author(s)
      Omotehara Takuya、Nakata Hiroki、Nagahori Kenta、Itoh Masahiro
    • Journal Title

      Histochemistry and Cell Biology

      Volume: 157 Issue: 3 Pages: 321-332

    • DOI

      10.1007/s00418-021-02057-x

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three‐dimensional structure of testis cords in mice and rats2021

    • Author(s)
      Nakata Hiroki、Omotehara Takuya、Itoh Masahiro、Iseki Shoichi、Mizokami Atsushi
    • Journal Title

      Andrology

      Volume: 9 Issue: 6 Pages: 1911-1922

    • DOI

      10.1111/andr.13069

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three‐dimensional analysis of mesonephric tubules remodeling into efferent tubules in the male mouse embryo2021

    • Author(s)
      Omotehara Takuya、Nakata Hiroki、Itoh Masahiro
    • Journal Title

      Developmental Dynamics

      Volume: 251 Issue: 3 Pages: 513-524

    • DOI

      10.1002/dvdy.410

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A case of double inferior vena cava with the connection to sacral venous plexus2021

    • Author(s)
      Yoshimura Shiori、Yamamoto Kentaro、Fujimura Shintaro、Kawata Shinichi、Shimada Kazuyuki、Omotehara Takuya、Itoh Masahiro
    • Journal Title

      Anatomical Science International

      Volume: 97 Issue: 1 Pages: 143-146

    • DOI

      10.1007/s12565-021-00640-9

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neonatal maternal separation causes decreased numbers of Sertoli cell, spermatogenic cells, and sperm in mic2021

    • Author(s)
      Miyaso H, Nagahori K, Takano K, Omotehara T, Kawata S, Li ZL, Kuramasu M, Wu X, Ogawa Y, Itoh M
    • Journal Title

      Toxicol Mech Methods

      Volume: 31 Issue: 2 Pages: 56-66

    • DOI

      10.1080/15376516.2020.1841865

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Common hepatic artery originating from superior mesenteric artery with replaced right hepatic artery2021

    • Author(s)
      Omotehara Takuya、Naito Michiko、Hayashi Shogo、Kawata Shinichi、Shimada Kazuyuki、Itoh Masahiro
    • Journal Title

      Anatomical Science International

      Volume: - Issue: 4 Pages: 568-571

    • DOI

      10.1007/s12565-020-00599-z

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of the posterior pelvic tilt sitting posture on thoracic morphology and respiratory function2021

    • Author(s)
      Aramaki Yoshihiro、Kakizaki Fujiyasu、Kawata Shinichi、Omotehara Takuya、Itoh Masahiro
    • Journal Title

      Journal of Physical Therapy Science

      Volume: 33 Issue: 2 Pages: 118-124

    • DOI

      10.1589/jpts.33.118

    • NAID

      130007986133

    • ISSN
      0915-5287, 2187-5626
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of CGRP distributions in the maxillary sinus and trigeminal ganglion between elderly dentulous and edentulous humans2021

    • Author(s)
      Matsuda H, Sato H, Asaumi R, Omotehara T, Kawata S, Nagahori K, Li ZL, Itoh M
    • Journal Title

      Eur J Histochem

      Volume: 65 Issue: 2 Pages: 3234-44

    • DOI

      10.4081/ejh.2021.3234

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Heat shock protein A4L is a potent autoantigen for testicular autoimmunity in mice2021

    • Author(s)
      Nagahori Kenta、Hirai Shuichi、Hatayama Naoyuki、Kuramasu Miyuki、Omotehara Takuya、Kawata Shinichi、Li Zhonglian、Miyaso Hidenobu、Ogawa Yuki、Qu Ning、Terayama Hayato、Hayashi Shogo、Yi Shuang-Qin、Naito Munekazu、Itoh Masahiro
    • Journal Title

      Journal of Reproductive Immunology

      Volume: 145 Pages: 103318-103318

    • DOI

      10.1016/j.jri.2021.103318

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Morphological Observations of the Bony Canal Structure of the Eustachian Tube in Elderly Human Cadavers With Cone-Beam Computed Tomography and Principal Component Analysis2021

    • Author(s)
      Asaumi Rieko、Sato Iwao、Kawai Taisuke、Kawata Shinichi、Omotehara Takuya、Kondo Shintaro、Itoh Masahiro
    • Journal Title

      The Journal of International Advanced Otology

      Volume: 17 Issue: 2 Pages: 134-144

    • DOI

      10.5152/jiao.2021.0058

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cytonuclear Estrogen Receptor Alpha Regulates Proliferation and Migration of Endometrial Carcinoma Cells2021

    • Author(s)
      Saimi Mierxiati、Moriya Shota、Li Zhong -Lian、Miyaso Hidenobu、Nagahori Kenta、Kawata Shinichi、Omotehara Takuya、Ogawa Yuki、Hino Hirotsugu、Miyazawa Keisuke、Sakabe Kou、Itoh Masahiro
    • Journal Title

      The Tokai Journal of Experimental and Clinical Medicine

      Volume: 46 Pages: 7-16

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pelvic collateral pathway during endovascular aortoiliac aneurysm repair with internal iliac artery interruption: a retrospective observational study2020

    • Author(s)
      Nishi Satoshi、Hayashi Shogo、Omotehara Takuya、Kawata Shinichi、Suematsu Yoshihiro、Itoh Masahiro
    • Journal Title

      BMC Cardiovascular Disorders

      Volume: 20 Issue: 1 Pages: 480-480

    • DOI

      10.1186/s12872-020-01764-y

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Connection between seminiferous tubules and epididymal duct is originally induced before sex differentiation in a sex‐independent manner2020

    • Author(s)
      Takuya Omotehara, Xi Wu, Miyuki Kuramasu, Masahiro Itoh
    • Journal Title

      Developmental Dynamics

      Volume: In press Issue: 6 Pages: 414-421

    • DOI

      10.1002/dvdy.155

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immunohistochemical study for relationship between vessel and lymphatic properties and tooth marks in human oral mucosa2020

    • Author(s)
      Toru Inomata, Yoko Miwa, Shinichi Kawata, Takuya Omotehara, Iwao Sato, Masahiro Itoh
    • Journal Title

      European journal of histochemistry

      Volume: 64 Issue: 1 Pages: 78-85

    • DOI

      10.4081/ejh.2020.3095

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of phosphorylated estrogen receptor alpha on apoptosis in human endometrial epithelial cells2020

    • Author(s)
      Uchida S, Saimi M, Li ZL, Miyaso H, Nagahori K, Kawata S, Omotehara T, Ogawa Y, Itoh M
    • Journal Title

      Anatomical Science International

      Volume: 95 Issue: 2 Pages: 240-250

    • DOI

      10.1007/s12565-019-00515-0

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 免疫寛容を受けていない精巣抗原遺伝子の同定2019

    • Author(s)
      永堀健太,平井宗一,倉升三幸,表原拓也,宮宗秀伸,李忠連,小川夕輝,伊藤正裕
    • Journal Title

      日本生殖免疫学会誌

      Volume: 34 Pages: 27-35

    • NAID

      130008065853

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 石原 弘編『人體解剖學』について2019

    • Author(s)
      河田晋一,表原拓也,島田和幸,内藤美智子
    • Journal Title

      形態科学

      Volume: 22 Pages: 45-48

    • NAID

      40021990415

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 群馬で出版された解剖学書『解剖學一斑 完』について2019

    • Author(s)
      表原拓也,河田晋一,島田和幸,内藤美智子
    • Journal Title

      形態科学

      Volume: 22 Pages: 41-44

    • NAID

      40021990402

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 田口和美著『解剖攬要』について2019

    • Author(s)
      島田和幸,河田晋一,内藤美智子,表原拓也
    • Journal Title

      形態科学

      Volume: 22 Pages: 35-40

    • NAID

      40021990388

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Genetic differences between C57BL/6 substrains affect the process of testis differentiation in Y<sup>POS</sup> mice2019

    • Author(s)
      YOKOYAMA Toshifumi、MIURA Yuuka、YAMAMOTO Anzu、HASEGAWA Chinatsu、KAWANISHI Kohei、TAKADA Nanako、OMOTEHARA Takuya、HIRANO Tetsushi、MANTANI Yohei、MIKI Takanori、HOSHI Nobuhiko
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 81 Issue: 4 Pages: 608-611

    • DOI

      10.1292/jvms.18-0621

    • NAID

      130007638718

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 精巣-精巣上体間の精路発生に関する比較解剖学的研究2022

    • Author(s)
      表原拓也、仲田浩規、永堀健太、伊藤正裕
    • Organizer
      第127回日本解剖学会総会・全国学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 精細管-中腎管間の連結に関する比較解剖学的解析2021

    • Author(s)
      表原拓也、仲田浩規、伊藤正裕
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] マウス精細管内を流れる精子に関する三次元解析2021

    • Author(s)
      表原拓也、金澤優太、仲田浩規、平島剛志、伊藤正裕
    • Organizer
      第36回日本生殖免疫学会総会・学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] マウス精巣輸出管形成における中腎管・中腎細管の再構築2021

    • Author(s)
      表原拓也,仲田浩規,伊藤正裕
    • Organizer
      第126回日本解剖学会総会・全国学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] マウス中腎細管の三次元再構築の検討2020

    • Author(s)
      表原拓也,仲田浩規,呉 曦,倉升三幸,伊藤正裕
    • Organizer
      第163回日本獣医学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Connection between seminiferous tubules and epididymal duct is induced before the sex differentiation2019

    • Author(s)
      Takuya Omotehara, Xi Wu, Miyuki Kuramasu, Kenta Nagahori, Yuki Ogawa, Shinichi Kawata, Zhong-Lian Li, Hidenobu Miyaso, Masahiro Itoh
    • Organizer
      第42回日本分子生物学学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Sequential immunohistochemistry法による精細管と精巣上体管の接続過程の検討2019

    • Author(s)
      表原拓也,倉升三幸,呉曦,永堀健太,小川夕輝,河田晋一,李忠連,宮宗秀伸,伊藤正裕
    • Organizer
      第162回日本獣医学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Immunohistological study for the connection between the testis and epididymis2019

    • Author(s)
      Takuya Omotehara, Miyuki Kuramasu, Kenta Nagahori, Xi Wu, Shinichi Kawata, Zhong-Lian Li, Hidenobu Miyaso, Masahiro Itoh
    • Organizer
      第59回日本先天異常学会学術集会
    • Related Report
      2019 Research-status Report

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

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