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The mechanism of H3K9 demethylation at the Sry locus

Research Project

Project/Area Number 20H03262
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 44020:Developmental biology-related
Research InstitutionOsaka University

Principal Investigator

Kuroki Shunsuke  大阪大学, 大学院生命機能研究科, 准教授 (50735793)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords性決定 / エピゲノム
Outline of Research at the Start

ほ乳類の性決定遺伝子であるSryの発現は、発現する細胞の種類と発現のタイミング・量が最も厳密に制御されている遺伝子の一つである。この厳密性を保証する機構は長らく謎であったが、申請者は2013年、ヒストンH3K9脱メチル化酵素であるJmjd1aがSry活性化に寄与することを示した。本研究では、この時から依然として未解決な課題「Jmjd1aがSry遺伝子を特異的に標的とするメカニズム」の解決を目指す。

Outline of Final Research Achievements

Sex determination and sex differentiation are the most important events in the survival of a species, and many transcription factors involved in sex determination have been identified, including the sex determination gene Sry on the Y chromosome. On the other hand, how the epigenome is involved in sex determination is still poorly understood. In this study, we searched for proteins that bind to Jmjd1a to elucidate the mechanism by which Jmjd1a, a histone H3K9 demethylase, targets the Sry locus. As a result, we identified a novel Zn finger protein as a candidate.

Academic Significance and Societal Importance of the Research Achievements

ヒトの性分化疾患(DSD, Disorders of Sex Development)は性の決定・分化が正しく進行しない場合に発症する病気である。DSDの半数以上の症例でその原因は未だ不明である。本研究によって同定した新規因子と性決定の関わりを明らかにすることで、DSD発症の新たな原因解明に繋がることが期待される。

Report

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

    (6 results)

All 2021 2020

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (3 results) (of which Invited: 3 results)

  • [Journal Article] Dynamic erectile responses of a novel penile organ model utilizing TPEM.2021

    • Author(s)
      Hashimoto D, Hirashima T, Yamamura H, Kataoka T, Fujimoto K, Hyuga T, Yoshiki A, Kimura K, Kuroki S, Tachibana M, Suzuki K, Yamamoto N, Morioka S, Sasaki T, Yamada G.
    • Journal Title

      Biol Reprod.

      Volume: in press Issue: 4 Pages: 875-886

    • DOI

      10.1093/biolre/ioab011

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] H3K9 Demethylases JMJD1A and JMJD1B Control Prospermatogonia to Spermatogonia Transition in Mouse Germline2020

    • Author(s)
      Kuroki Shunsuke、Maeda Ryo、Yano Masashi、Kitano Satsuki、Miyachi Hitoshi、Fukuda Mikiko、Shinkai Yoichi、Tachibana Makoto
    • Journal Title

      Stem Cell Reports

      Volume: 15 Issue: 2 Pages: 424-438

    • DOI

      10.1016/j.stemcr.2020.06.013

    • NAID

      120007146093

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The mouse Sry locus harbors a cryptic exon that is essential for male sex determination2020

    • Author(s)
      Miyawaki Shingo、Kuroki Shunsuke、Maeda Ryo、Okashita Naoki、Koopman Peter、Tachibana Makoto
    • Journal Title

      Science

      Volume: 370 Issue: 6512 Pages: 121-124

    • DOI

      10.1126/science.abb6430

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 全能性獲得における母性H3K9脱メチル化酵素 Jmjd1a/bの解析2021

    • Author(s)
      黒木俊介
    • Organizer
      新学術領域「全能性プログラム」領域会議
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 全能性獲得における 母性H3K9脱メチル化酵素の機能解析2020

    • Author(s)
      黒木俊介
    • Organizer
      新学術領域「全能性プログラム」Webinar
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 生殖細胞におけるH3K9脱メチル化の機能2020

    • Author(s)
      黒木俊介
    • Organizer
      『配偶子インテグリティの構築』『全能性プログラム』合同公開シンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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