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Elucidating the universality and specificity of reproductive mechanisms between species using genetically modified animals

Research Project

Project/Area Number 21H02397
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42040:Laboratory animal science-related
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

FUJIHARA YOSHITAKA  国立研究開発法人国立循環器病研究センター, 研究所, 部長 (70578848)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2022: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2021: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywordsゲノム編集 / 雄性不妊 / 哺乳類精子 / 小分子化合物 / 遺伝子保存 / 進化 / 機能補完 / 生物種間保存 / 遺伝子組換え動物 / 精子受精能力
Outline of Research at the Start

研究代表者はゲノム編集技術CRISPR/Cas9を用いた個体レベルの遺伝子スクリーニングにより、精巣及び精巣上体特異的な必須遺伝子の同定に成功した。本課題では、研究代表者が発見した雄性生殖に必須な3因子群(未発表のため非公開)の精子受精能における役割を解明することを目的とする。今回解析する遺伝子群は、ハエや魚類などの非哺乳類からマウスやヒトまで広く保存されているだけでなく、哺乳類以外でも重要な機能を持つことからあらゆる生物種間で普遍的な役割を担っていると予想される。本研究では、遺伝子組換え動物を開発して、種々のモデル動物間での生殖メカニズムの共通性と特異性に焦点を当てて機能解析する。

Outline of Final Research Achievements

In this study, we elucidated the functions of genes (Lcn5-10, Ly6g5b/c, Spaca4, Tex46, Dcst1/2, etc.) in male reproduction that were identified through essential gene screening using the genome editing technology CRISPR/Cas9. This discovery has offered new insights into the crucial steps involved in the fertilization process of mammalian spermatozoa, including sperm maturation through the epididymis, passage through the zona pellucida (ZP), and sperm-oocyte membrane fusion. While it is known that the sperm head shape and motility are important for passage through the ZP, little is known about the molecular interactions. We discovered that two molecules, SPACA4 and TEX46, are essential for ZP penetration in mice.

Academic Significance and Societal Importance of the Research Achievements

本研究では、哺乳類生殖の中でも受精へ至るまでに精子が受精能力を獲得して卵子と膜融合するまでに必要な遺伝子群の発見に成功した。これまで不明だった精子の透明帯通過に寄与する精子膜タンパク質SPACA4, TEX46の同定は、分子機構の全容解明への第一歩となる。今回発見した因子を標的に、男性不妊の原因究明や検査・診断法の開発に繋がり、精巣上体分泌因子を用いた精子受精能力の制御や試験管内再現への可能性を秘めている。

Report

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

    (32 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (9 results) Journal Article (12 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 12 results,  Open Access: 12 results) Presentation (6 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results) Remarks (5 results)

  • [Int'l Joint Research] ベイラー医科大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ウィーンバイオセンター(オーストラリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] オウル大学(フィンランド)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ウィーンバイオセンター(オーストリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ベイラー医科大学(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] オウル大学(ノルウェー)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ウィーンバイオセンター(オーストラリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] オスロ大学(ノルウェー)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ベイラー医科大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Tex46 knockout male mice are sterile secondary to sperm head malformations and failure to penetrate through the zona pellucida2024

    • Author(s)
      Fujihara Y、Miyata H、Abbasi F、Larasati T、Nozawa K、Yu Z、Ikawa M、Matzuk MM.
    • Journal Title

      PNAS Nexus

      Volume: 3 Issue: 3 Pages: 108-108

    • DOI

      10.1093/pnasnexus/pgae108

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Testis-enriched ferlin, FER1L5, is required for Ca <sup>2+</sup> -activated acrosome reaction and male fertility2023

    • Author(s)
      Morohoshi Akane、Miyata Haruhiko、Tokuhiro Keizo、Iida-Norita Rie、Noda Taichi、Fujihara Yoshitaka、Ikawa Masahito
    • Journal Title

      Science Advances

      Volume: 9 Issue: 4

    • DOI

      10.1126/sciadv.ade7607

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sperm membrane proteins DCST1 and DCST2 are required for sperm-egg interaction in mice and fish2022

    • Author(s)
      Noda Taichi、Blaha Andreas、Fujihara Yoshitaka、Gert Krista R.、Emori Chihiro、Deneke Victoria E.、Oura Seiya、Panser Karin、Lu Yonggang、Berent Sara、Kodani Mayo、Cabrera-Quio Luis Enrique、Pauli Andrea、Ikawa Masahito
    • Journal Title

      Communications Biology

      Volume: 5 Issue: 1 Pages: 1-11

    • DOI

      10.1038/s42003-022-03289-w

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] TULP2 deletion mice exhibit abnormal outer dense fiber structure and male infertility2022

    • Author(s)
      Oyama Yuki、Miyata Haruhiko、Shimada Keisuke、Larasati Tamara、Fujihara Yoshitaka、Ikawa Masahito
    • Journal Title

      Reproductive Medicine and Biology

      Volume: 21 Issue: 1 Pages: 1-8

    • DOI

      10.1002/rmb2.12467

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The testis-specific E3 ubiquitin ligase RNF133 is required for fecundity in mice2022

    • Author(s)
      Nozawa K、Fujihara Y、Devlin DJ、Deras RE、Kent K、Larina IV、Umezu K、Yu Z、Sutton CM、Ye Q、Dean LK、Emori C、Ikawa M、Garcia TX、Matzuk MM.
    • Journal Title

      BMC Biology

      Volume: 20 Issue: 1 Pages: 161-161

    • DOI

      10.1186/s12915-022-01368-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Advancing ASMS with LC‐MS/MS for the discovery of novel PDCL2 ligands from DNA‐encoded chemical library selections2022

    • Author(s)
      Ye Q、Belabed H、Wang Y、Yu Z、Palaniappan M、Li JY、Kalovidouris SA、MacKenzie KR、Teng M、Young DW、Fujihara Y、Matzuk MM.
    • Journal Title

      Andrology

      Volume: - Issue: 5 Pages: 808-815

    • DOI

      10.1111/andr.13309

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] PDCL2 is essential for sperm acrosome formation and male fertility in mice2022

    • Author(s)
      Fujihara Y、Kobayashi K、Abbasi F、Endo T、Yu Z、Ikawa M、Matzuk MM.
    • Journal Title

      Andrology

      Volume: - Issue: 5 Pages: 789-798

    • DOI

      10.1111/andr.13329

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CRISPR/Cas9‐mediated disruption of <i>lipocalins</i> , <i>Ly6g5b</i> , and <i>Ly6g5c</i> causes male subfertility in mice2022

    • Author(s)
      Sakurai N、Fujihara Y、Kobayashi K、Ikawa M.
    • Journal Title

      Andrology

      Volume: - Issue: 5 Pages: 981-990

    • DOI

      10.1111/andr.13350

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice2022

    • Author(s)
      Oyama Yuki、Miyata Haruhiko、Shimada Keisuke、Fujihara Yoshitaka、Tokuhiro Keizo、Garcia ThomasX、Matzuk MartinM、Ikawa Masahito
    • Journal Title

      Asian Journal of Andrology

      Volume: in press Issue: 3 Pages: 0-0

    • DOI

      10.4103/aja.aja_63_21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Id2 Represses Aldosterone-Stimulated Cardiac T-Type Calcium Channels Expression2021

    • Author(s)
      Ito J, Minemura T, Walchli S, Niimi T, Fujihara Y, Kuroda S, Takimoto K, Maturana AD.
    • Journal Title

      Int J Mol Sci.

      Volume: 22 Issue: 7 Pages: 3561-3561

    • DOI

      10.3390/ijms22073561

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The conserved fertility factor SPACA4/Bouncer has divergent modes of action in vertebrate fertilization2021

    • Author(s)
      Fujihara Yoshitaka、Herberg Sarah、Blaha Andreas、Panser Karin、Kobayashi Kiyonori、Larasati Tamara、Novatchkova Maria、Theussl Hans-Christian、Olszanska Olga、Ikawa Masahito、Pauli Andrea
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 118 Issue: 39

    • DOI

      10.1073/pnas.2108777118

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 疾患モデル動物を用いた循環器病研究の最前線2021

    • Author(s)
      藤原祥高、望月直樹
    • Journal Title

      国立医療学会誌「医療」

      Volume: 75 Pages: 111-116

    • NAID

      40022558140

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Screening male contraceptive targets using CRISPR/Cas9-mediated KO mice2023

    • Author(s)
      Yoshitaka Fujihara
    • Organizer
      2023 National Contraception Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular mechanism of mammalian fertilization revealed by genome-edited mice2023

    • Author(s)
      Yoshitaka Fujihara
    • Organizer
      The Fibrobesity Visitor Program and Kontinkangas Campus Seminar Series 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular mechanisms of mammalian spermatogenesis and fertilization revealed by genome-edited mice2023

    • Author(s)
      Yoshitaka Fujihara
    • Organizer
      The Fifth Annual David H. Yawn Commemorative Lecture
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] PDCL2 is essential for sperm acrosome formation and male fertility in mice2023

    • Author(s)
      Yoshitaka Fujihara
    • Organizer
      56th Annual Meeting of the Society for the Study of Reproduction (SSR)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PDCL2 is essential for sperm acrosome formation and male fertility in mice2023

    • Author(s)
      Yoshitaka Fujihara
    • Organizer
      The 22nd European Testis Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PDCL2 is essential for sperm acrosome formation and male fertility in mice2023

    • Author(s)
      Haga S, Kobayashi K, Abbasi F, Endo T, Yu Z, Ikawa M, Matzuk MM, and Fujihara Y.
    • Organizer
      第70回日本実験動物学会総会
    • Related Report
      2023 Annual Research Report
  • [Remarks] Researchmap

    • URL

      https://researchmap.jp/Yoshitaka_Fujihara/?lang=japanese

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] 国立研究開発法人国立循環器病研究センター先端医療技術開発部HP

    • URL

      https://www.ncvc.go.jp/res/divisions/amt/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Remarks] INFRAFRONTIER News

    • URL

      https://www.infrafrontier.eu/news/successful-launch-of-fibrobesity-visitor-programme-with-the-visit-of-dr-yoshitaka-fujihara/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 大阪大学微生物病研究所遺伝子機能解析分野HP

    • URL

      https://egr.biken.osaka-u.ac.jp/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] 国立研究開発法人国立循環器病研究センター分子生物学部HP

    • URL

      https://www.ncvc.go.jp/res/divisions/bioscience/

    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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