• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Molecular mechanisms of base excision repaired-mediated DNA demethylation driven by PRDM14 (Fostering Joint International Research)

Research Project

Project/Area Number 15KK0262
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research)

Allocation TypeMulti-year Fund
Research Field Genome biology
Research InstitutionKwansei Gakuin University

Principal Investigator

SEKI YOSHIYUKI  関西学院大学, 理工学部, 准教授 (20435655)

Research Collaborator Johnson Andrew  ノッティンガム大学, 生命科学部, 教授
Project Period (FY) 2015 – 2018
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Keywords生殖細胞 / 有尾両生類 / 分子進化 / 始原生殖細胞 / アホロートル / 多能性細胞 / 多能性幹細胞 / 多能性 / エピゲノム / 再生医学 / 進化 / 発生・分化 / ゲノム
Outline of Final Research Achievements

The study of the molecular mechanisms for the specification of germ cell fate form pluripotent stem cells is important to apply for assisted productive technology and the maintenance of endangered species. In this study, we searched the phylogenetic distribution of Prdm14, which is critical for the germ cell specification in mice, and tried to uncovere the molecular evolution and expression pattern in early embryo among deuterostomes. In these results, we elucidated that Prdm14 existed at the genome of sea anemone, which is diploblastic organism and is distributed widely in deuterostomes. Furthermore, Prdm14 is expressed in motor neuron of amphioxus and zebrafish embryo, which suggest that Prdm14 is co-oped from motor neuron to pluripotent cells and primordial germ cells at around the emergence of amniotes during vertebrate evolution. We are trying to identify molecular mechanism of co-option and biological significances.

Academic Significance and Societal Importance of the Research Achievements

多能性幹細胞から始原生殖細胞(精子・卵の元になる細胞)への誘導機構の解明は、生殖補助医療や絶滅危惧種の保全などに繋がる極めて重要な研究である。近年、これまで研究の蓄積があるマウスの知見とヒト生殖細胞形成機構が異なる可能性が指摘され始めている。今回、アホロートル胚におけるPRDM14の機能解析を行い、マウスよりもヒトでの機能に近いことが明らかとなった。したがって、今後、マウスとヒト間で保存されておらず、ヒトのみに存在する分子カスケードをアホロートル胚を用いて解析することで、ヒトの生殖補助医療に応用できる可能性が期待できる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (15 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 1 results) Remarks (3 results)

  • [Int'l Joint Research] ノッティンガム大学(英国)2016

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Co-option of the PRDM14-CBFA2T complex from motor neurons to pluripotent cells during vertebrate evolution2019

    • Author(s)
      Masanori Kawaguchi, Kota Sugiyama, Kazumi Matsubara, Che-Yi Lin, Shigehiro Kuraku, Shota Hashimoto, Yoshiaki Suwa, Luok Wen Yong, Koji Takino, Shota Higashida, Daisuke Kawamura, Jr-Kai Yu and Yoshiyuki Seki
    • Journal Title

      Development

      Volume: 146 Pages: 1-14

    • DOI

      10.1242/dev.168633

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Maintenance of cell fates and regulation of the histone variant H3.3 by TLK kinase in Caenorhabditis elegans2019

    • Author(s)
      Yukimasa Shibata, Yoshiyuki Seki, Kiyoji Nishiwaki
    • Journal Title

      Biology Open

      Volume: 8(1) Pages: 1-12

    • DOI

      10.1242/bio.038448

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] PRDM14 Is a Unique Epigenetic Regulator Stabilizing Transcriptional Networks for Pluripotency2018

    • Author(s)
      Yoshiyuki Seki
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 6(12) Pages: 12-12

    • DOI

      10.3389/fcell.2018.00012

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] PRDM14 drives OCT-3/4 recruitment via active demethylation in the transition from primed to naive pluripotency2016

    • Author(s)
      Okashita N, Suwa Y, Nishimura O, Sakashita N, Kadota, Nagamatsu G, Kawaguchi M, Kashida H, Nakajima A, Tachibana M, *Seki Y
    • Journal Title

      Stem Cell Rep

      Volume: 7 Issue: 6 Pages: 1072-1086

    • DOI

      10.1016/j.stemcr.2016.10.007

    • NAID

      120007037462

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 多能性ネットワークの進化的起源と変容2018

    • Author(s)
      関 由行
    • Organizer
      日本遺伝学会第90回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] CtBP1/2 is a gatekeeper for ground state pluripotency and totipotency2018

    • Author(s)
      Yoshiyuki Seki
    • Organizer
      EMBO workshop From epigenome towards epitranscriptome in cell fate choice
    • Related Report
      2018 Annual Research Report
  • [Presentation] Reconstitution of epigenetic rerpgramming pathway associated with primordial germ cells in embryonic stem cells2017

    • Author(s)
      Yoshiyuki Seki
    • Organizer
      CDB Symposium 2017
    • Place of Presentation
      理化学研究所、兵庫県・神戸市
    • Year and Date
      2017-03-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 後口動物における多能性ネットワークの起源と変容2017

    • Author(s)
      関 由行
    • Organizer
      第89回日本遺伝学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 始原生殖細胞によるエピゲノムリプログラミングとその人為的制御2017

    • Author(s)
      関 由行
    • Organizer
      第11回日本エピジェネティクス研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 生殖細胞形成機構の動物種を超えた共通原理と種特異性2016

    • Author(s)
      関 由行
    • Organizer
      第39回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜、神奈川県・横浜市
    • Year and Date
      2016-12-01
    • Related Report
      2016 Research-status Report
  • [Presentation] 生殖細胞形成機構の動物種を超えた共通原理と種特異性2016

    • Author(s)
      関 由行
    • Organizer
      日本発生生物学会秋季シンポジウム
    • Place of Presentation
      三島市民文化会館、静岡県・三島市
    • Year and Date
      2016-10-21
    • Related Report
      2016 Research-status Report
  • [Remarks] 関研究室ホームページ

    • URL

      https://seki-lab.wixsite.com/seki-lab

    • Related Report
      2018 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://seki-lab.wixsite.com/seki-lab

    • Related Report
      2017 Research-status Report 2016 Research-status Report
  • [Remarks] 関研究室ホームページ

    • URL

      http://sci-tech.ksc.kwansei.ac.jp/~seki/Seki_Lab..html

    • Related Report
      2015 Research-status Report

URL: 

Published: 2016-10-04   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi