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Identification and functional analysis of super-enhancers for tooth regeneration

Research Project

Project/Area Number 22K21033
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0907:Oral science and related fields
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Kurogoushi Rika  東京医科歯科大学, 東京医科歯科大学病院, 医員 (70963958)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsダイレクトリプログラミング法 / 線維芽細胞 / スーパーエンハンサー / 再生医療 / 間葉系幹細胞
Outline of Research at the Start

本研究は、創傷治癒ではたらく線維芽細胞と間葉系幹細胞(MSC)の関係を明らかにし、特に細胞分化の鍵を握るスーパーエンハンサーに着目した新規組織再生法の開発を目指した研究を実施する。歯髄中にも豊富に存在する線維芽細胞から直接的に象牙芽細胞への分化を促すダイレクトリプログラミング法を開発できれば、象牙芽細胞やエナメル芽細胞への分化を飛躍的に誘導する新規の細胞誘導法の開発へも発展できると考える。

Outline of Final Research Achievements

In this study, we first searched for genes that could be super-enhancers and selected candidate genes. We then analyzed the expression of this gene family in dental pulp-derived mesenchymal cells, odontogenic epithelial cells, and various organs, and found that it was specifically expressed in teeth and the brain. We also analyzed the expression of the gene during tooth embryo development by in situ hybridization. The results suggest that the gene are expressed only in a limited stages and may play a role in the development of tooth embryos.

Academic Significance and Societal Importance of the Research Achievements

組織再生は周囲の多くの細胞の相互作用によって営まれるが、このプロセスにおける間葉系幹細胞と線維芽細胞の相互作用は明らかとなっていない。本研究において、創傷治癒ではたらく線維芽細胞と間葉系幹細胞(MSC)の関係を明らかにし、特に細胞分化の鍵を握るスーパーエンハンサーを中心とした新規組織再生法の開発を行うことで、歯髄中にも豊富に存在する線維芽細胞から直接的に象牙芽細胞への分化を促すダイレク トリプログラミング法を開発できれば、象牙芽細胞やエナメル芽細胞への分化を飛躍的に誘導する新規の細胞誘導法の開発へも発展できると考える。

Report

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

    (3 results)

All 2023

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

  • [Journal Article] C-terminus of PIEZO1 governs Ca2+ influx and intracellular ERK1/2 signaling pathway in mechanotransduction2023

    • Author(s)
      Sugimoto Asuna、Iwata Kokoro、Kurogoushi Rika、Tanaka Manami、Nakashima Yumiko、Yamakawa Yoshihito、Oishi Atsushi、Yoshizaki Keigo、Fukumoto Satoshi、Yamamoto Akihito、Ishimaru Naozumi、Iwamoto Tsutomu
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 682 Pages: 39-45

    • DOI

      10.1016/j.bbrc.2023.09.080

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Iroquois homeobox 3 regulates odontoblast proliferation and differentiation mediated by Wnt5a expression2023

    • Author(s)
      Narwidina A, Miyazaki A, Iwata K, Kurogoushi R, Sugimoto A, Kudo Y, Kawarabayashi K, Yamakawa Y, Akazawa Y, Kitamura T, Nakagawa H, Yamaguchi-Ueda K, Hasegawa T, Yoshizaki K, Fukumoto S, Yamamoto A, Ishimaru N, Iwasaki T, Iwamoto T.
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 650 Pages: 47-54

    • DOI

      10.1016/j.bbrc.2023.02.004

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Regulation of cytokine expression by FGF2 in dental pulp-derived mesenchymal stem cells and a consideration on relevance to inflammation and regeneration2023

    • Author(s)
      Rika Kurogoushi, Kokoro Iwata, Tsutomu Iwamoto
    • Organizer
      IAPD Congress 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research

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Published: 2022-09-01   Modified: 2025-01-30  

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