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Development of functional enhancer screening system by integrating genome editing technology with single-cell RNA-seq

Research Project

Project/Area Number 18K19636
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 57:Oral science and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Hojo Hironori  東京大学, 大学院医学系研究科(医学部), 准教授 (80788422)

Co-Investigator(Kenkyū-buntansha) 大庭 伸介  長崎大学, 医歯薬学総合研究科(歯学系), 教授 (20466733)
Project Period (FY) 2018-06-29 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsエンハンサー / ゲノム編集 / 一細胞解析 / 骨芽細胞 / エンハンサースクリーニング / 骨形成 / 転写制御 / 一細胞RNA-seq / 骨発生
Outline of Final Research Achievements

In this study, we aimed at establishment of enhancer screening system by using osteoblast differentiation as a model. We constructed guide RNA library that targets putative osteoblast enhancers. We then expressed the library DNA into osteogenic cells that stably expressed Cas9. After osteoblast induction, cells were isolated and single cell RNA-seq was performed. In the assay, we enabled to detect “genotype” as guide RNA sequencing and “phenotypes” as gene expression profile simultaneously at single cell resolution. Through this analysis we identified a functional enhancer for osteoblast differentiation.

Academic Significance and Societal Importance of the Research Achievements

遺伝子の発現を規定する転写ネットワークは、器官発生や細胞の分化決定だけでなく、疾患の分子病態の理解の根底をなすと考えられています。当該分野において、これまで、「転写ネットワークの全貌解明」を目指す研究が活発に進められてきましたが、「転写ネットワークの中で、どこが重要であるか」を生物学的な実験で効率よく抽出する方法は十分に確立していませんでした。本研究では、転写ネットワークを制御するエンハンサーに着目して、重要なエンハンサーを同定する手法を確立しました。本手法を応用することで、生物発生の成り立ちやヒトの病気のメカニズムの解析に役立つことが期待されます。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2021 2020 2019 2018

All Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] The Progress of Stem Cell Technology for Skeletal Regeneration2021

    • Author(s)
      Tani Shoichiro、Okada Hiroyuki、Chung Ung-il、Ohba Shinsuke、Hojo Hironori
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 3 Pages: 1404-1404

    • DOI

      10.3390/ijms22031404

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gene regulatory landscape in osteoblast differentiation2020

    • Author(s)
      Hojo Hironori、Ohba Shinsuke
    • Journal Title

      Bone

      Volume: 137 Pages: 115458-115458

    • DOI

      10.1016/j.bone.2020.115458

    • NAID

      120006988169

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hedgehog Activation Regulates Human Osteoblastogenesis2020

    • Author(s)
      Onodera Shoko、Saito Akiko、Hojo Hironori、Nakamura Takashi、Zujur Denise、Watanabe Katsuhito、Morita Nana、Hasegawa Daigo、Masaki Hideki、Nakauchi Hiromitsu、Nomura Takeshi、Shibahara Takahiko、Yamaguchi Akira、Chung Ung-il、Azuma Toshifumi、Ohba Shinsuke
    • Journal Title

      Stem Cell Reports

      Volume: 15 Issue: 1 Pages: 125-139

    • DOI

      10.1016/j.stemcr.2020.05.008

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Understanding paraxial mesoderm development and sclerotome specification for skeletal repair2020

    • Author(s)
      Tani Shoichiro、Chung Ung-il、Ohba Shinsuke、Hojo Hironori
    • Journal Title

      Experimental & Molecular Medicine

      Volume: 52 Issue: 8 Pages: 1166-1177

    • DOI

      10.1038/s12276-020-0482-1

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stepwise strategy for generating osteoblasts from human pluripotent stem cells under fully defined xeno-free conditions with small-molecule inducers2020

    • Author(s)
      Zujur Denise、Kanke Kosuke、Onodera Shoko、Tani Shoichiro、Lai Jenny、Azuma Toshifumi、Xin Xiaonan、Lichtler Alexander C.、Rowe David W.、Saito Taku、Tanaka Sakae、Masaki Hideki、Nakauchi Hiromitsu、Chung Ung-il、Hojo Hironori、Ohba Shinsuke
    • Journal Title

      Regenerative Therapy

      Volume: 14 Pages: 19-31

    • DOI

      10.1016/j.reth.2019.12.010

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Insights into Gene Regulatory Networks in Chondrocytes2019

    • Author(s)
      Hojo Hironori、Ohba Shinsuke
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 20 Issue: 24 Pages: 6324-6324

    • DOI

      10.3390/ijms20246324

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Simple and Robust Differentiation of Human Pluripotent Stem Cells toward Chondrocytes by Two Small-Molecule Compounds2019

    • Author(s)
      Kawata Manabu、Mori Daisuke、Kanke Kosuke、Hojo Hironori、Ohba Shinsuke、Chung Ung-il、Yano Fumiko、Masaki Hideki、Otsu Makoto、Nakauchi Hiromitsu、Tanaka Sakae、Saito Taku
    • Journal Title

      Stem Cell Reports

      Volume: 13 Issue: 3 Pages: 530-544

    • DOI

      10.1016/j.stemcr.2019.07.012

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation of orthotopically functional salivary gland from embryonic stem cells2018

    • Author(s)
      Tanaka Junichi、Ogawa Miho、Hojo Hironori、Kawashima Yusuke、Mabuchi Yo、Hata Kenji、Nakamura Shiro、Yasuhara Rika、Takamatsu Koki、Irie Tarou、Fukada Toshiyuki、Sakai Takayoshi、Inoue Tomio、Nishimura Riko、Ohara Osamu、Saito Ichiro、Ohba Shinsuke、Tsuji Takashi、Mishima Kenji
    • Journal Title

      Nature Communications

      Volume: 9 Issue: 1 Pages: 4216-4216

    • DOI

      10.1038/s41467-018-06469-7

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Runx2は骨格発生においてクロマチンランドスケープを規定する2020

    • Author(s)
      北條宏徳、齋藤琢、小野寺晶子、東俊文、鄭雄一、大庭伸介
    • Organizer
      日本骨代謝学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Runx2 defines the osteoblast chromatin landscape in skeletal development2020

    • Author(s)
      Hironori Hojo, Taku Saito, Shoko Onodera, Toshifumi Azuma, Ung-il Chung, Masahide Seki, Yutaka Suzuki, Andrew P. McMahon, Shinsuke Ohba
    • Organizer
      American Society for Bone and Mineral Research
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cell-type-distinct regulatory action of Runx2 on the genome underlies its distinct roles in osteoblasts and chondrocytes.2019

    • Author(s)
      Hojo H, Ohba S, Yamakawa A, Guo Q, He X, Saito T, Onodera S, Azuma T, Chung UI, McMahon AP.
    • Organizer
      2019 Annual Meeting of the American Society for Bone and Mineral Research
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Runx2は骨格発生において細胞種特異的な転写制御領域に作用する2019

    • Author(s)
      北條宏徳、山川晃、齋藤琢、小野寺晶子、東俊文、鄭雄一、大庭伸介
    • Organizer
      第37回日本骨代謝学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] A chondrocyte-specific Indian hedgehog enhancer as an OA-driving enhancer.2019

    • Author(s)
      Yamakawa A, Hojo H, Chung UI, Ohba S
    • Organizer
      Orthopedic Research Society 2018 Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-07-25   Modified: 2022-01-27  

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