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Elucidating of transcription factor network during the differentiation of human ES cells

Research Project

Project/Area Number 17K15129
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Developmental biology
Research InstitutionKeio University

Principal Investigator

AKIYAMA TOMOHIKO  慶應義塾大学, 医学部(信濃町), 助教 (20570691)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
KeywordsES細胞 / 細胞分化 / 転写制御 / クロマチン / 骨格筋分化 / 神経分化 / ATACシーケンス / オープンクロマチン / 転写因子 / シスエレメント / 転写因子ネットワーク
Outline of Final Research Achievements

ATAC sequencing was performed to identify open chromatin that regulates differentiation of human ES cells by introduction of transcription factors. Skeletal muscle differentiation by introducing MYOD1 and neuronal differentiation by introducing NGN2 was analysed and we identified several thousands of open chromatin sites specifically present in the differentiated cells. In addition to the sites that MYOD1 and NGN2 originally bind to in adult tissues, there were open chromatin sites that appear specifically when MYOD1 and NGN2 were introduced into ES cells. Together, direct conversions of ES cells to terminally differentiated cells can be achieved by the coordinated action controlled by these two types of open chromatin sites.

Academic Significance and Societal Importance of the Research Achievements

本研究のオープンクロマチン解析では、転写因子ネットワークの変化を詳細に解析することが可能である。個々の転写因子の抗体を用いてゲノム上の転写因子結合サイトを同定する実験では、1500個の転写因子のネットワークを体系的に捉えることができない。オープンクロマチンを調べることにより、細胞分化過程におけるゲノム上の「転写因子結合マップ」を作成することができる。そのため、転写因子ネットワークの全体像が明らかとなり、「幹細胞」と「分化細胞」の違いを生み出す分子基盤を理解できると考えられる。また、新規分化誘導因子が明らかになれば、ES細胞を自在に分化誘導できる革新的技術の開発も期待できる。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (11 results)

All 2019 2018 2017

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (6 results) (of which Invited: 5 results)

  • [Journal Article] Induced Pluripotent Stem Cells Reprogrammed with Three Inhibitors Show Accelerated Differentiation Potentials with High Levels of 2-Cell Stage Marker Expression2019

    • Author(s)
      Nishihara Koji、Shiga Takahiro、Nakamura Eri、Akiyama Tomohiko、Sasaki Takashi、Suzuki Sadafumi、Ko Minoru S.H.、Tada Norihiro、Okano Hideyuki、Akamatsu Wado
    • Journal Title

      Stem Cell Reports

      Volume: 12 Issue: 2 Pages: 305-318

    • DOI

      10.1016/j.stemcr.2018.12.018

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Induction of human pluripotent stem cells into kidney tissues by synthetic mRNAs encoding transcription factors.2019

    • Author(s)
      Hiratsuka K, Monkawa T, Akiyama T, Nakatake Y, Oda M, Goparaju SK, Kimura H, Chikazawa-Nohtomi N, Sato S, Ishiguro K, Yamaguchi S, Suzuki S, Morizane R, Ko SBH, Itoh H, Ko MSH
    • Journal Title

      Scientific reports

      Volume: 9 Issue: 1 Pages: 913-913

    • DOI

      10.1038/s41598-018-37485-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Establishment of a rapid and footprint-free protocol for differentiation of human embryonic stem cells into pancreatic endocrine cells with synthetic mRNAs encoding transcription factors2018

    • Author(s)
      Ida H., Akiyama T., Ishiguro K., Goparaju SK., Nakatake Y., Chikazawa-Nohtomi N., Sato S., Kimura H., Yokoyama Y., Nagino M., Ko MSH., Ko SBH.
    • Journal Title

      Stem Cell Res Ther.

      Volume: 9, 277 Issue: 1 Pages: 1-10

    • DOI

      10.1186/s13287-018-1038-3

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficient differentiation of human pluripotent stem cells into skeletal muscle cells by combining RNA-based MYOD1-expression and POU5F1-silencing.2018

    • Author(s)
      Akiyama T, Sato S, Chikazawa-Nohtomi N, Soma A, Kimura H, Wakabayashi S, Ko SBH, Ko MSH.
    • Journal Title

      Sci Rep.

      Volume: 8 Issue: 1 Pages: 1189-1189

    • DOI

      10.1038/s41598-017-19114-y

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Epigenetic manipulation facilitates the generation of skeletal muscle cells from pluripotent stem cells.2017

    • Author(s)
      Tomohiko Akiyama, Shunichi Wakabayashi, Atsumi Soma, Saeko Sato, Yuhki Nakatake, Mayumi Oda, Miyako Murakami, Miki Sakota, Nana Chikazawa-Nohtomi, Shigeru B. H. Ko, Minoru S. H. Ko
    • Journal Title

      Stem Cell International.

      Volume: 2017 Pages: 7215010-7215010

    • DOI

      10.1155/2017/7215010

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] マスター転写因子とヒストン脱メチル化酵素の関連性2018

    • Author(s)
      秋山智彦
    • Organizer
      第41回日本分子生物学会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 2つのヒストン脱メチル化酵素により制御される転写調節機構2018

    • Author(s)
      秋山智彦
    • Organizer
      熊本大学発生医学研究所第348回発生研セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Transcriptome Manipulation to Facilitate the Differentiation of Human Pluripotent Stem Cells2018

    • Author(s)
      秋山 智彦
    • Organizer
      幹細胞シンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] ヒトES細胞の直接分化誘導に関わるaccessible chromatin構造2017

    • Author(s)
      秋山 智彦
    • Organizer
      次世代生命科学研究会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] ヒトES細胞-骨格筋変換に関わるaccessible chromatin構造2017

    • Author(s)
      秋山 智彦
    • Organizer
      エピジェネティクス研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] Accelerated differentiation of human pluripotent stem cells by ectopic expression of histone demethylase2017

    • Author(s)
      Tomohiko Akiyama
    • Organizer
      日本発生生物学会
    • Related Report
      2017 Research-status Report
    • Invited

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Published: 2017-04-28   Modified: 2021-01-27  

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