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Elucidation of the roles in the dental pulp of the innate immune receptor, Mincle, which recognizes dead cells by bacterial infection

Research Project

Project/Area Number 18K09577
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57030:Conservative dentistry-related
Research InstitutionThe University of Tokushima

Principal Investigator

YUMOTO Hiromichi  徳島大学, 大学院医歯薬学研究部(歯学域), 教授 (60284303)

Co-Investigator(Kenkyū-buntansha) 平尾 功治  徳島大学, 大学院医歯薬学研究部(歯学域), 助教 (00581399)
木戸 淳一  徳島大学, 大学院医歯薬学研究部(歯学域), 准教授 (10195315)
稲垣 裕司  徳島大学, 病院, 講師 (50380019)
二宮 雅美  徳島大学, 大学院医歯薬学研究部(歯学域), 助教 (10291494)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsMincle / 自然免疫 / 細菌感染 / 歯髄 / 象牙芽細胞 / シグナル伝達経路 / 遺伝子発現 / 受容体 / 細胞・組織
Outline of Final Research Achievements

Expression of Mincle mRNA was observed in normal and inflamed dental pulp tissues and rat odontoblast-like cells (KN-3). Induction of Mincle mRNA expression in KN-3 cells was observed via the p38 MAPK-AP-1 signaling pathway by stimulation with the NOD-1-specific ligand, iE-DAP. Furthermore, CCL4 mRNA expression was significantly induced in KN-3 cells by the secondary stimulation with the Mincle-specific ligand, TDM, after first stimulation with iE-DAP. These findings revealed that odontoblasts have a function of recognizing dead cells fallen into necrosis by bacterial infection and suggest that Mincle in dental pulp tissues play important roles in the progression or repair / healing process of pulpitis.

Academic Significance and Societal Importance of the Research Achievements

細菌に対する防御機能を担う歯髄は、炎症反応が進行し、細菌感染が強度となると、最終的には歯髄除去療法により除去される。歯髄が除去された歯の予後は悪く、破折等により抜歯を余儀なくされ、歯の喪失を招く。よって、細菌感染等により壊死に陥った細胞を認識するMincleが、歯髄炎の進行に大きく関与することを明らかにした本研究成果は、今後、Mincleを診断マーカーや標的分子とした新規の診断・治療薬の開発に繋がるものと考えられ、歯髄温存し、歯の寿命を延ばすことにより、生活の質の向上にも導くことから、学術的意義に加えて、社会的意義も大きいと考えられる。

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 (5 results) (of which Peer Reviewed: 4 results,  Open Access: 5 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results)

  • [Journal Article] Expression of Fibroblast growth factor receptor1, -2c, and -3c transcripts in mouse molars after tooth eruption2021

    • Author(s)
      Kano T, Morita T, Sumida K, Yumoto H, Baba O
    • Journal Title

      Anatomical Science International

      Volume: 96 Issue: 2 Pages: 301-309

    • DOI

      10.1007/s12565-020-00594-4

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Caffeic acid phenethyl ester (CAPE) induces VEGF expression and production in rat odontoblastic cells2019

    • Author(s)
      Hitomi Kuramoto, Kouji Hirao, Hiromichi Yumoto, Yuki Hosokawa, Tadashi Nakanishi, Daisuke Takegawa, Ayako Washio, Chiaki Kitamura, Takashi Matsuo
    • Journal Title

      BioMed Research International

      Volume: 5390720 Pages: 1-12

    • DOI

      10.1155/2019/5390720

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Pathogenic Factors from Oral Streptococci for Systemic Diseases2019

    • Author(s)
      Hiromichi Yumoto, Katsuhiko Hirota, Kouji Hirao, Masami Ninomiya, Keiji Murakami, Hideki Fujii, Yoichiro Miyake
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 20 Issue: 18 Pages: 1-18

    • DOI

      10.3390/ijms20184571

    • NAID

      120006939610

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The roles of odontoblasts in dental pulp innate immunity2018

    • Author(s)
      Yumoto Hiromichi、Hirao Kouji、Hosokawa Yuki、Kuramoto Hitomi、Takegawa Daisuke、Nakanishi Tadashi、Matsuo Takashi
    • Journal Title

      Japanese Dental Science Review

      Volume: 54 Issue: 3 Pages: 105-117

    • DOI

      10.1016/j.jdsr.2018.03.001

    • NAID

      120006550815

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pathogenic Factors in Oral Biofilm Infection and Their Effects on Systemic Diseases2018

    • Author(s)
      湯本浩通
    • Journal Title

      Journal of Oral Health and Biosciences

      Volume: 31 Issue: 1 Pages: 1-12

    • DOI

      10.20738/johb.31.1_1

    • NAID

      130007402929

    • ISSN
      2188-7888, 2189-6682
    • Related Report
      2018 Research-status Report
    • Open Access
  • [Presentation] 歯内療法における技術革新と最近のトレンド・トピックス2020

    • Author(s)
      湯本浩通
    • Organizer
      日本歯科保存学会 2020年度秋季学術大会(第153回)
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Clinical Technique in Endodontics2019

    • Author(s)
      Hiromichi Yumoto
    • Organizer
      ConsAsia2019 (The 1st General Meeting of the Asian-Oceanian Federation of Conservative Dentistry [AOFCD])
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ラット象牙芽細胞(KN-3)におけるVEGFの石灰化誘導作用2019

    • Author(s)
      蔵本瞳, 平尾功治, 細川由樹, 武川大輔, 湯本浩通, 中西正
    • Organizer
      日本歯科保存学会 2019年度秋季学術大会(第151回)
    • Related Report
      2019 Research-status Report
  • [Presentation] 萌出後マウス臼歯の歯髄における象牙質形成関連因子の発現解析2019

    • Author(s)
      神尾強司, 守田剛, 角田佳折, 湯本浩通, 馬場麻人
    • Organizer
      第61回歯科基礎医学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] NODリガンド刺激したヒト象牙芽細胞様細胞におけるインターフェロンガンマの影響2019

    • Author(s)
      武川大輔, 中西正, 平尾功治, 湯本浩通, 細川由樹, 蔵本瞳, 松尾敬志
    • Organizer
      日本歯科保存学会 2019年度春季学術大会(第150回)
    • Related Report
      2019 Research-status Report
  • [Presentation] Caffeic Acid Phenetyl Ester (CAPE)のラット象牙芽細胞(KN-3)におけるVEGF産生誘導機序の解析2019

    • Author(s)
      蔵本瞳, 湯本浩通, 平尾功治, 細川由樹, 松尾敬志
    • Organizer
      第40回日本歯内療法学会学術大会& 第17回日韓合同歯内療法学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Caffeic Acid Phenetyl Ester (CAPE)の象牙芽細胞と骨芽細胞におけるVEGF産生誘導機序の解析2018

    • Author(s)
      蔵本瞳, 湯本浩通, 平尾功治, 細川由樹, 中西正, 武川大輔, 松尾敬志
    • Organizer
      日本歯科保存学会 2018年度春季学術大会(第148回)
    • Related Report
      2018 Research-status Report
  • [Presentation] 口腔バイオフィルム感染症における病原因子2018

    • Author(s)
      湯本浩通
    • Organizer
      四国歯学会(53回例会)
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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