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Epigenetic regulation by iron metabolism - Does maternal iron fluctuation alter the epigenome of the fetus? -

Research Project

Project/Area Number 21K19221
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
Research InstitutionOsaka University

Principal Investigator

Tachibana Makoto  大阪大学, 大学院生命機能研究科, 教授 (80303915)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords性決定 / 鉄 / エピゲノム / 脱メチル化
Outline of Research at the Start

Deferoxamine (Dfo) は、鉄過剰症の治療薬として用いられている鉄キレート剤である。これまで私たちは、Dfoを含む培地でマウスES細胞を24時間培養すると、ヒストンH3の9番目のリシン(H3K9)をはじめとするヒストンH3のメチル化レベルが大幅に亢進すること、さらにDNAのメチル化レベルも有意に亢進することを見出した。本知見に基づき、妊娠期のマウスにDfoを投与し、一過的に鉄が欠乏した状態にした際に、胎仔のゲノムインプリンティングの消去と性決定が正しくおこなわれるのかについて明らかにする。

Outline of Final Research Achievements

Enzymatic reactions (oxidation reactions) that catalyze the demethylation of DNA and histones require divalent iron (Fe2+). Previously, we have found that Fe2+-requiring histone demethylase is involved in sex determination during embryogenesis. More recently, it was found that in cultured cells, the iron content of the medium is a rate-limiting factor for histone demethylation. Based on these findings, we will examine the effects of maternal iron metabolism on the fetal epigenome in a mouse model.

Academic Significance and Societal Importance of the Research Achievements

本研究は、鉄過剰症の一般的な治療薬として用いられている鉄キレート剤が生体内のエピゲノムを変えてしまう可能性を検証する。最近では、DNA/ヒストンのメチル化は配偶子のゲノムを介して複数の世代にわたって安定に継承される、との実験結果も数多く報告されてきている。本研究は、鉄代謝関連疾患に対する既存の治療方法の抜本的な見直しを迫るとともに、その新たな(= 安全な)治療方法の開発へとつながる可能性を秘めている。

Report

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

    (34 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (13 results) (of which Int'l Joint Research: 6 results,  Invited: 10 results) Book (3 results) Remarks (6 results) Funded Workshop (1 results)

  • [Int'l Joint Research] Qeensland University(オーストラリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] クイーンズランド大学(オーストリア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] カリフォルニア大学デービス校(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Epigenetic modifier G9a is involved in regulation of mouse tongue development2024

    • Author(s)
      Ideno Hisashi、Nakashima Kazuhisa、Komatsu Koichiro、Kimura Hiroshi、Shinkai Yoichi、Tachibana Makoto、Nifuji Akira
    • Journal Title

      Journal of Oral Biosciences

      Volume: 66 Issue: 1 Pages: 35-40

    • DOI

      10.1016/j.job.2023.12.007

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CDYL reinforces male gonadal sex determination through epigenetically repressing <i>Wnt4</i> transcription in mice2023

    • Author(s)
      Okashita Naoki、Maeda Ryo、Tachibana Makoto
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 120 Issue: 20

    • DOI

      10.1073/pnas.2221499120

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] HP1 maintains protein stability of H3K9 methyltransferases and demethylases2022

    • Author(s)
      Ryo Maeda, Makoto Tachibana
    • Journal Title

      EMBO Reports

      Volume: 23 Issue: 4

    • DOI

      10.15252/embr.202153581

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] マウス性決定遺伝子Sryの「隠れたエキソン」の発見2022

    • Author(s)
      立花誠
    • Journal Title

      ファルマシア

      Volume: 58 Pages: 34-38

    • NAID

      130008138918

    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [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
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Meiosis-specific ZFP541 repressor complex promotes developmental progression of meiotic prophase towards completion during mouse spermatogenesis2021

    • Author(s)
      Horisawa-Takada Yuki et al.
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 3184-3184

    • DOI

      10.1038/s41467-021-23378-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation of ovarian follicles from mouse pluripotent stem cells2021

    • Author(s)
      Yoshino Takashi、Suzuki Takahiro、Nagamatsu Go、Yabukami Haruka、Ikegaya Mika、Kishima Mami、Kita Haruka、Imamura Takuya、Nakashima Kinichi、Nishinakamura Ryuichi、Tachibana Makoto、Inoue Miki、Shima Yuichi、Morohashi Ken-ichirou、Hayashi Katsuhiko
    • Journal Title

      Science

      Volume: 373 Issue: 6552 Pages: 282-289

    • DOI

      10.1126/science.abe0237

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 性決定遺伝子の全貌-マウスSryにおける“隠れエキソン”の発見-2021

    • Author(s)
      宮脇慎吾、立花誠
    • Journal Title

      医学のあゆみ

      Volume: 278 Pages: 1132-1133

    • Related Report
      2021 Research-status Report
  • [Presentation] ほ乳類性決定におけるエピジェネティック制御の役割2024

    • Author(s)
      立花誠
    • Organizer
      第4回 有性生殖研究会「未来にむけた生殖研究」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] CDYL reinforces male gonadal sex determination through epigenetically repressing Wnt4 transcription in mice2023

    • Author(s)
      Makoto Tachibana
    • Organizer
      9th International Symposium on the Biology of Vertebrate Sex Determination
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ほ乳類性決定におけるエピジェネティック制御の役割2023

    • Author(s)
      立花誠
    • Organizer
      第16回日本エピジェネティクス研究会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] CDYL reinforces male gonadal sex determination through epigenetically repressing Wnt4 transcription in mice2023

    • Author(s)
      Makoto Tachibana
    • Organizer
      9th International Conference of Brain and Gonadal Biology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ほ乳類の性が決まるしくみとエピジェネティクス2023

    • Author(s)
      立花誠
    • Organizer
      第39回 西宮市ライフサイエンスセミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] マウス性決定のエピジェネティック制御機構2023

    • Author(s)
      立花誠
    • Organizer
      日本遺伝学会第95回年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] The Mouse Sry Locus Harbors a Cryptic Exon that is Essential for Male Sex Determination2022

    • Author(s)
      Makoto Tachibana
    • Organizer
      The 12th Biennial Scientific Meeting of the Asia Pacific Paediatric Endocrine Siciety 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] H3K9me2/3 represses the expression of 2-cell-stage-specific genes in mESCs2022

    • Author(s)
      前田亮、立花誠
    • Organizer
      第95回日本生化学会大会シンポジウム
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] HP1 maintains protein stability of H3K9 methyltransferases in mammalian cells2022

    • Author(s)
      Ryo Maeda, Makoto Tachibana
    • Organizer
      第95回日本生化学会大会シンポジウム
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Role of iron metabolism in mouse sex determination2022

    • Author(s)
      Makoto Tachibana
    • Organizer
      第45回日本分子生物学会シンポジウム
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] マウスES細胞におけるトランスポゾンの抑制機構2021

    • Author(s)
      立花誠
    • Organizer
      転移因子研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Epigenetic regulation of two-cell-specific genes in mouse ES cells2021

    • Author(s)
      立花誠
    • Organizer
      日本分子生物学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] HP1-dependent heterochromatin formation in mammalian cells2021

    • Author(s)
      Ryo Maeda, Makoto Tachibana
    • Organizer
      染色体ワークショップ
    • Related Report
      2021 Research-status Report
  • [Book] Spectrum of Sex: The Molecular Bases that Induce Various Sexual Phenotypes2023

    • Author(s)
      Minoru Tanaka and Makoto Tachibana
    • Total Pages
      233
    • Publisher
      Springer Nature
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Book] The Evolutionary Aspects of the Mammalian Sex-Determining Gene SRY.2023

    • Author(s)
      Shingo Miyawaki and Makoto Tachibana
    • Total Pages
      17
    • Publisher
      Springer Nature
    • Related Report
      2023 Annual Research Report
  • [Book] The Evolutionary Aspects of the Mammalian Sex-Determining Gene SRY2023

    • Author(s)
      Shingo Miyawaki and Makoto Tachibana
    • Total Pages
      17
    • Publisher
      Springer Nature
    • Related Report
      2022 Research-status Report
  • [Remarks] 大阪大学生命機能研究科立花研HP

    • URL

      https://tachibana-lab.net/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 新学術領域研究「性スペクトラム」HP

    • URL

      https://park.itc.u-tokyo.ac.jp/sexspectrum/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 大阪大学大学院生命機能研究科 立花研究室

    • URL

      https://tachibana-lab.net/

    • Related Report
      2022 Research-status Report
  • [Remarks] 性スペクトラム

    • URL

      http://park.itc.u-tokyo.ac.jp/sexspectrum/outline.html

    • Related Report
      2022 Research-status Report
  • [Remarks] 新学術領域「性スペクトラム」HP

    • URL

      http://park.itc.u-tokyo.ac.jp/sexspectrum/index.html

    • Related Report
      2021 Research-status Report
  • [Remarks] 大阪大学大学院生命機能研究科 立花研究室 HP

    • URL

      https://tachibana-lab.net/

    • Related Report
      2021 Research-status Report
  • [Funded Workshop] 第45回日本分子生物学会シンポジウム「Role of epigenetic regulation in mammalian health and disease」2022

    • Related Report
      2022 Research-status Report

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Published: 2021-07-13   Modified: 2025-01-30  

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