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Effect of extracellular matrix protein of epithelial rests of Malassez supernatants

Research Project

Project/Area Number 20K10213
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionHealth Sciences University of Hokkaido

Principal Investigator

SAITOH Masato  北海道医療大学, 歯学部, 教授 (50337036)

Co-Investigator(Kenkyū-buntansha) 谷村 明彦  北海道医療大学, 歯学部, 教授 (70217149)
安彦 善裕  北海道医療大学, 歯学部, 教授 (90260819)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsマラッセ上皮遺残細胞 / アメロジェニン / amelogenin / Amelogenin / マラッセ上皮遺残 / クローニング
Outline of Research at the Start

これまでに我々はブタERMの培養系を確立し、ERMがエムドゲインと同様にアメロジェニンを含む種々のエナメルマトリックスプロテインを発現すること、そしてアメロジェニンが骨芽細胞の石灰化に抑制的に作用し、歯と歯槽骨とのアンキローシス防止に寄与することで歯根膜のホメオスターシスの維持に関与することを報告している。そこで、本研究ではERMの詳細な特性を明らかにし、歯根膜のホメオスターシス維持の機序およびそれらのシグナル経路について明らかにすることを目的とする。

Outline of Final Research Achievements

The periodontal tissue supporting the teeth is composed of gingiva, alveolar bone, cementum, and periodontal ligament. The periodontal ligament contains mesenchymal cells such as fibroblasts, osteoblasts, and cementoblasts, as well as epithelial rest of Malassez (ERM) cells, which are derived from the odontogenic epithelium of the ectoderm, and are unique in that they remain present throughout root formation. ERMs are derived from the odontogenic epithelium and express the enamel matrix proteins amelogenin and ameloblastin, which are involved in enamel formation. In this study that the addition of culture supernatant of Malasse epithelial remnant cells to mouse tooth embryos induces enamel hydroxyapatite.

Academic Significance and Societal Importance of the Research Achievements

これまでに、エナメル質の形成に関わっているタンパク質は明らかになっているものの、生体内での形成のため不明な点が多かった。今回我々の研究で、培養歯胚にエナメル質形成タンパクの一つであるアメロジェニンを添加することにより、エナメル質ハイドロキシアパタイトの形成を誘導することを明らかにした。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (6 results)

All 2023 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 5 results)

  • [Journal Article] Regaining enamel color quality using enamel matrix derivative2023

    • Author(s)
      Sugaya Hiroyuki、Kurashige Yoshihito、Suzuki Kai、Sakakibara Sayaka、Fujita Yusuke、Islam Syed Taufiqul、Nezu Takashi、Ito Shuichi、Abiko Yoshihiro、Saitoh Masato
    • Journal Title

      Medical Molecular Morphology

      Volume: 1 Issue: 2 Pages: 1-1

    • DOI

      10.1007/s00795-022-00346-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhancement of receptor‐mediated calcium responses by phenytoin through the suppression of calcium excretion in human gingival fibroblasts2023

    • Author(s)
      Minowa Erika、Hayashi Yoshinobu、Goh Kenji、Ishida Narumi、Kurashige Yoshihito、Nezu Akihiro、Saitoh Masato、Tanimura Akihiko
    • Journal Title

      Journal of Periodontal Research

      Volume: 58 Issue: 2 Pages: 274-282

    • DOI

      10.1111/jre.13089

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Veillonella nakazawae sp. nov., an anaerobic Gram-negative coccus isolated from the oral cavity of Japanese children2021

    • Author(s)
      Mashima Izumi、Theodorea Citra F.、Djais Ariadna A.、Kunihiro Tadao、Kawamura Yoshiaki、Otomo Maiko、Saitoh Masato、Tamai Riyoko、Kiyoura Yusuke
    • Journal Title

      International Journal of Systematic and Evolutionary Microbiology

      Volume: 71 Issue: 1 Pages: 33263509-33263509

    • DOI

      10.1099/ijsem.0.004583

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison of Achievement Status of Clinical Training Guideline Items between Instructor, Certified, and General Dental Hygienists Involved in Patients with Disabilities2020

    • Author(s)
      松岡 陽子、福本 敏、山田 亜矢、倉重 圭史、毛利 志乃、梶 美奈子、片山 博道、伊藤 誠、芝田 憲治、蓑輪 映里佳、齊藤 正人
    • Journal Title

      Journal of the Japanese Society for Disability and Oral Health

      Volume: 41 Issue: 4 Pages: 277-286

    • DOI

      10.14958/jjsdh.41.277

    • NAID

      130007992578

    • ISSN
      0913-1663, 2188-9708
    • Year and Date
      2020-10-31
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Involvement of RNase 7 in the malignant potential of oral squamous cell carcinoma cells2020

    • Author(s)
      Neopane Puja、Kurashige Yoshihito、Yoshida Koki、Uehara Osamu、Paudel Durga、Morikawa Tetsuro、Sato Jun、Saitoh Masato、Abiko Yoshihiro
    • Journal Title

      Oncology Reports

      Volume: 44 Issue: 3 Pages: 1216-1223

    • DOI

      10.3892/or.2020.7678

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 不安階層表を用いることで歯科治療が可能になった歯科恐怖症の1例2020

    • Author(s)
      蓑輪 映里佳, 岡田 悠之介, 福田 敦史, 大友 麻衣子, 梶 美奈子, 倉重 圭史, 松岡 紘史, 安彦 善裕, 齊藤 正人
    • Journal Title

      日本歯科心身医学会雑誌

      Volume: 35 Pages: 31-36

    • NAID

      130008143433

    • Related Report
      2020 Research-status Report
    • Peer Reviewed

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Published: 2020-04-28   Modified: 2024-01-30  

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