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Experimental verification of human male infertility genes by the use of Drosophila models

Research Project

Project/Area Number 19K06780
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 45010:Genetics-related
Research InstitutionKyoto Institute of Technology

Principal Investigator

Takano Toshiyuki  京都工芸繊維大学, 応用生物学系, 教授 (90202150)

Co-Investigator(Kenkyū-buntansha) 都丸 雅敏  京都工芸繊維大学, 応用生物学系, 助教 (70324720)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords男性不妊 / オス不妊 / 精子形成 / 精子成熟 / ショウジョウバエ / 生物種間横断研究 / 精子―メスの相互作用 / 精子とメスとの相互作用 / データベース / 父性効果遺伝子 / オス不妊遺伝子 / 生物種横断研究
Outline of Research at the Start

今、不妊は世界共通の大きな公衆衛生課題となっている.そのうち半数は男性側の障害によるが,原因不明なケースが3割を超える.一方で、データベースには865の遺伝子が男性の不妊候補遺伝子として登録されている.しかし、これらは男性不妊との関連が予想されるということに過ぎず、モデル生物をつかった実験検証が待たれている.実際,候補遺伝子のうちマウス、ショウジョウバエのいずれでもオス不妊遺伝子として同定されていない遺伝子は600を超える.そこで、これらの候補遺伝子が実際にオスの妊性へ関与するのか、ショウジョウバエをモデルに検証する.これによりオス不妊遺伝子リストを充実させ、ヒト男性の不妊の理解を深める.

Outline of Final Research Achievements

To advance our understanding of sexual reproduction, we screened 103 Drosophila melanogaster genes for their association with male sterility by tissue-specific RNAi knockdown and CRISPR/Cas9-mediated mutagenesis, resulting in the discovery of 63 new genes associated with male fertility in Drosophila. The phenotypes varied considerably; Interestingly, the second largest class among the distinct sterility phenotypes caused sterility despite apparently normal testis and sperm morphology. We focused on two such genes, Rack1 and Nep4, and found that both plays an important role in sperm function following sperm transfer to females. Many genes are yet to be identified and their role in male reproduction, especially after ejaculation, remains to be elucidated.

Academic Significance and Societal Importance of the Research Achievements

今、不妊は世界共通の大きな公衆衛生課題となっている。そのうち半数は男性側の障害によるが、原因不明なケースが3割を超える。一方で、データベースには多数の遺伝子が男性の不妊候補遺伝子として登録されている。しかし、これらはオミクス解析によって関連が示唆された過ぎず、モデル生物での実験検証が待たれている。今回、ショウジョウバエをモデルに検証を進め、オス不妊遺伝子リストを充実させることができ、ヒト男性の不妊の理解を深めることにも繋がった。殊に、一見、正常に見える精子でも貯精、受精障害等の異常をもつことも稀ではないことは今後の研究、診断にも役立つと期待される。

Report

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

    (19 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 3 results) Presentation (8 results) (of which Invited: 3 results)

  • [Int'l Joint Research] Arizona State University(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Arizona State University(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Arizona State University(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] The <i>Drosophila Neprilysin 4</i> gene is essential for sperm function following sperm transfer to females2021

    • Author(s)
      Ohsako Takashi、Shirakami Machi、Oiwa Kazuharu、Ibaraki Kimihide、Karr Timothy L.、Tomaru Masatoshi、Sanuki Rikako、Takano-Shimizu-Kouno Toshiyuki
    • Journal Title

      Genes & Genetic Systems

      Volume: 96 Issue: 4 Pages: 177-186

    • DOI

      10.1266/ggs.21-00024

    • NAID

      130008129948

    • ISSN
      1341-7568, 1880-5779
    • Year and Date
      2021-08-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A cross-species approach for the identification of Drosophila male sterility genes2021

    • Author(s)
      Ibaraki Kimihide、Nakatsuka Mihoko、Ohsako Takashi、Watanabe Masahide、Miyazaki Yu、Shirakami Machi、Karr Timothy L、Sanuki Rikako、Tomaru Masatoshi、Takano-Shimizu-Kouno Toshiyuki
    • Journal Title

      G3 Genes|Genomes|Genetics

      Volume: 11 Issue: 8

    • DOI

      10.1093/g3journal/jkab183

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Offspring production from cryopreserved primordial germ cells in Drosophila2021

    • Author(s)
      Asaoka Miho、Sakamaki Yurina、Fukumoto Tatsuya、Nishimura Kaori、Tomaru Masatoshi、Takano-Shimizu Toshiyuki、Tanaka Daisuke、Kobayashi Satoru
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 1159-1159

    • DOI

      10.1038/s42003-021-02692-z

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sexual isolation between Drosophila simulans and D. mauritiana: D. simulans females do not discriminate against intact-wing D. mauritiana males.2021

    • Author(s)
      Tomaru, M., Hattori, E., Yamada, H. & Oguma, Y.
    • Journal Title

      Journal of Ethology

      Volume: 39 Issue: 1 Pages: 73-87

    • DOI

      10.1007/s10164-020-00675-x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of CR43467 encoding a long non-coding RNA as a novel genetic interactant with dFIG4, a CMT-causing gene.2020

    • Author(s)
      Shimada, S., Muraoka, Y., Ibaraki, K., Takano-Shimizu-Kouno, T., Yoshida, H., and Yamaguchi, M.
    • Journal Title

      Experimental Cell Research

      Volume: 386 Issue: 1 Pages: 111711-111711

    • DOI

      10.1016/j.yexcr.2019.111711

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] De novo NSF mutations cause early infantile epileptic encephalopathy2019

    • Author(s)
      Suzuki Hisato、Yoshida Takeshi、Morisada Naoya、Uehara Tomoko、Kosaki Kenjiro、Sato Katsunori、Matsubara Kohei、Takano‐Shimizu Toshiyuki、Takenouchi Toshiki
    • Journal Title

      Annals of Clinical and Translational Neurology

      Volume: 6 Issue: 11 Pages: 2334-2339

    • DOI

      10.1002/acn3.50917

    • NAID

      120006940294

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cortex glia clear dead young neurons via Drpr/dCed-6/Shark and Crk/Mbc/dCed-12 signaling pathways in the developing Drosophila optic lobe.2019

    • Author(s)
      Nakano, R., Iwamura, M., Obikawa, A., Togane, Y., Hara, Y., Fukuhara, T., Tomaru, M., Takano, T., and Tsujimura H.
    • Journal Title

      Developmental Biology

      Volume: 印刷中 Issue: 1 Pages: 68-85

    • DOI

      10.1016/j.ydbio.2019.05.003

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Normal aging hyperactivates innate immunity and reduces the medical efficacy of minocycline in brain injury.2019

    • Author(s)
      Sanuki, R., Tanaka, T., Suzuki, F., Ibaraki, K., and Takano T.
    • Journal Title

      Brain, Behavior, and Immunity

      Volume: 印刷中 Pages: 427-438

    • DOI

      10.1016/j.bbi.2019.04.023

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Analysis of expression patterns of 96 GAL4 drivers in female sperm storage organs in Drosophila melanogaster2022

    • Author(s)
      大迫 隆史 , 稲井 琴梨 , 高野 敏行
    • Organizer
      第15回日本ショウジョウバエ研究集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ショウジョウバエメスの精子保存器官で発現するGAL4ドライバー2022

    • Author(s)
      稲井 琴梨, 大迫 隆史, 都丸 雅敏, 高野 敏行
    • Organizer
      日本遺伝学会第94回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ショウジョウバエNep4遺伝子は射精後の精子の機能に必要である2021

    • Author(s)
      大岩航陽、大迫隆史、白神真知、茨木公英、Timothy L. Karr、都丸雅敏、佐貫理佳子、高野敏行
    • Organizer
      日本遺伝学会第93回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ゲノムを一括で復元できるショウジョウバエ始原生殖細胞の凍結保存技術2021

    • Author(s)
      高野敏行
    • Organizer
      NBRP オンラインワークショップ バイオリソースの先端技術のまるわかり
    • Related Report
      2021 Research-status Report
  • [Presentation] Progress and future perspectives of fly-stock cryopreservation in the National BioResource Project (NBRP)2021

    • Author(s)
      Takano-Shimizu, T. , K. Nishimura, S. Yamamoto, M. Tomaru, R. Sanuki, M. Asaoka, S. Kobayashi, & D. Tanaka
    • Organizer
      14th Japan Drosophila Research Conference
    • Related Report
      2021 Research-status Report
  • [Presentation] in vivo study of human disease candidate mutations with gain-of-function and loss-of-function effects under the IRUD Beyond.2020

    • Author(s)
      TAKANO-SHIMIZU, T., SATO, K., MATSUBARA, K., SANUKI, R., YAMAGUCHI, M., KOWADA, R., YOSHIDA, H., KOSAKI, K. , UEHARA, T., and TALENOUCHI, T.
    • Organizer
      The 43rd Annual Meeting of the Molecular Biology Society of Japan
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] SNAREシャペロン遺伝子の機能獲得型変異2019

    • Author(s)
      高野敏行
    • Organizer
      「未診断疾患イニシアチブ(Initiative on Rare and Undiagnosed Diseases (IRUD)):希少未診断疾患に対する診断プログラムの開発に関する研究」 令和元年度 ワークショップ
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ゲノムだけでは解決しないバリアントに対する機能解析のアプローチ “IRUD Beyond”について2019

    • Author(s)
      高野敏行、佐貫理佳子、松原光平、茨木公英、佐藤克則、大岩航陽
    • Organizer
      第61回日本小児神経学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited

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

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