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Epigenetic regulation of odontoblast differentiation

Research Project

Project/Area Number 26463092
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Orthodontics/Pediatric dentistry
Research InstitutionOsaka University

Principal Investigator

Yuto Takeuchi  大阪大学, 歯学部附属病院, 医員 (60721454)

Co-Investigator(Kenkyū-buntansha) 三原 聖美  大阪大学, 歯学研究科, 招へい教員 (00551920)
山城 隆  大阪大学, 歯学研究科, 教授 (70294428)
柳田 剛志  岡山大学, 大学病院, 講師 (90534793)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords象牙芽細胞 / エピジェネティクス / 象牙質 / エピジェネティック / 分化 / クロマチン修飾 / 歯髄幹細胞 / 再生医療
Outline of Final Research Achievements

Dentin is similar to bone in terms of its matrix protein composition and abundance of molecular cascades participating in odontoblast differentiation that are shared with osteoblast differentiation. On the other hand, dentin does not undergo remodeling, and odontoblasts secrete dentin throughout their lifespan. In this study, we topically applied LiCl, an activator of canonical Wnt signaling, as a novel capping material in order to activate reparative dentin formation. MicroCT and microscopic analyses demonstrated that the topical application of LiCl induced dentin repair, including the formation of a complete dentin bridge. In contrast, a dentin bridge was not induced in the control group treated with pulp capping with material carriers alone. These results provide a scientific basis for the biomimetic regeneration of dentin using LiCl to activate dentine regeneration presumably through epigenetic modulation .

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (3 results)

All 2016 2015

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

  • [Journal Article] Fate mapping of Trps1 daughter cells during cardiac development using novel Trps1-Cre mice.2016

    • Author(s)
      Nomir AG, Takeuchi Y, Fujikawa J, El Sharaby AA, Wakisaka S, Abe M
    • Journal Title

      Genesis

      Volume: 54 Issue: 7 Pages: 379-388

    • DOI

      10.1002/dvg.22951

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Topical application of lithium chloride on the pulp induces dentin regeneration.2015

    • Author(s)
      Ishimoto K, Hayano S, Yanagita T, Kurosaka H, Kawanabe N, Itoh S, Ono M, Kuboki T, Kamioka H, Yamashiro T.
    • Journal Title

      PLoS One

      Volume: 10 Issue: 3 Pages: 1-12

    • DOI

      10.1371/journal.pone.0121938

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] A novel transgenic mice explains pleiotropic congenital cardiac defects of TRPS patients.2016

    • Author(s)
      28.Nomir A, Takeuchi Y, Fujikawa J, Abe M, Wakisaka S
    • Organizer
      第58回歯科基礎医学会学術集会
    • Place of Presentation
      札幌コンベンションセンター(北海道札幌市)
    • Year and Date
      2016-08-24
    • Related Report
      2016 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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