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Basic analysis and development of treatment method of periodontal disease in Down Syndrome focusing on the immune system

Research Project

Project/Area Number 17K17332
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Orthodontics/Pediatric dentistry
Research InstitutionThe University of Tokushima

Principal Investigator

AKAZAWA Yuki  徳島大学, 病院, 助教 (10646152)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords歯肉細胞 / Down症候群 / てんかん / 薬物性歯肉増殖症 / 歯肉線維芽細胞 / Down症
Outline of Final Research Achievements

In Down's syndrome, periodontal disease occurs frequently, so we aimed to analyze the molecular mechanism. First, we tried to prepare a gingival fibroblast cell line derived from Down’s syndrome gingiva. Although a cell line showing trisomy on chromosome 21 could not be stably obtained.
Therefore, we focused on the relationship between the side effects of the antiepileptic drug sodium valproate and inflammatory cytokines including Eotaxin-1, using the normal gingival cell line. Then we found that when sodium valproate was administered to normal gingival fibroblast cells, a proliferation tendency was observed in a cell proliferation test. It was shown that the administration of sodium valproate promotes the proliferation of gingival fibroblast cells and inflammation may further promote the proliferation.

Academic Significance and Societal Importance of the Research Achievements

Down症候群は染色体異常の中では疫学的に最も発生頻度が高い。臨床的には齲蝕罹患率は低いが、歯周疾患は発症しやすい。そのためDown症候群に関連した歯周疾患に関連したサイトカインネットワークを解析することにより、歯周疾患に対する新たな治療法の開発を目標としていた。
しかし、Down症候群の歯肉細胞株ができなかったため、全身投与の薬物により誘発される歯肉増殖症に注目した。歯肉増殖症は清掃不良になりやすく、清掃不良により症状はさらに増悪する。薬物性歯肉増殖症は歯科的には外科的歯肉切除しか治療法がなく、口腔内管理がかなり難しい。その分子メカニズムの解明により、局所的な治療法を探ることが可能となる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (5 results)

  • [Journal Article] Combination of ions promotes cell migration via ERK1/2 pathway in human gingival fibroblasts2019

    • Author(s)
      Kimiko Ueda Yamaguchi, Yuki Akazawa, Kawarabayashi Keita, Asuna Sugimoto, Hiroshi Nakagawa, miyazaki aya, Weih Falk, Kurogoushi Rika, Iwata Kokoro, Takamasa Kitamura, Yamada Aya, Tomokazu Hasegawa, Fukumoto Satoshi and Tsutomu Iwamoto
    • Journal Title

      Molecular Medicine Reports

      Volume: Vol.19/ No. 6 Pages: 5039-5045

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coordination of WNT signaling and ciliogenesis during odontogenesis by piezo type mechanosensitive ion channel component 1.2019

    • Author(s)
      Miyazaki A, Sugimoto A, Yoshizaki K, Kawarabayashi K, Iwata K, Kurogoushi R, Kitamura T, Otsuka K, Hasegawa T, Akazawa Y, Fukumoto S, Ishimaru N, Iwamoto T.
    • Journal Title

      Sci Rep.

      Volume: 9(1) Issue: 1 Pages: 14762-14762

    • DOI

      10.1038/s41598-019-51381-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Piezo type mechanosensitive ion channel component 1 functions as a regulator of the cell fate determination of mesenchymal stem cells2017

    • Author(s)
      Sugimoto Asuna, Miyazaki Aya, Kawarabayashi Keita, Masayuki Shono, Yuki Akazawa, Tomokazu Hasegawa, Kimiko Ueda Yamaguchi, Takamasa Kitamura, Yoshizaki keigo, Fukumoto Satoshi and Tsutomu Iwamoto
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 17696-17696

    • DOI

      10.1038/s41598-017-18089-0

    • NAID

      120006535026

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 歯根膜細胞における低酸素環境下でのエピジェネティクス制御の解析2020

    • Author(s)
      熊澤 里莉、守谷 有紀、長谷川 智一、赤澤 友基、岩本 勉
    • Organizer
      徳島県歯科医学大会・第56回四国歯学会例会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 乳歯歯髄細胞におけるEotaxin-1の発現調節機構の解析(2018

    • Author(s)
      黒厚子 璃佳, 長谷川 智一, 赤澤 友基, 杉本 明日菜, 河原林 啓太, 上田 公子, 岩本 勉
    • Organizer
      第56回日本小児歯科学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 乳歯歯髄細胞におけるケモカインCCL11の発現解析2017

    • Author(s)
      黒厚子璃佳、赤澤友基、長谷川智一、杉本明日菜、上田公子、岩本 勉
    • Organizer
      小児歯科学会 第36回中四国地方会大会および総会
    • Related Report
      2017 Research-status Report
  • [Presentation] PIEZO1は歯髄細胞の分化運命決定に関与し、象牙芽細胞への分化を促進させる2017

    • Author(s)
      杉本明日菜、赤澤友基、長谷川智一、宮嵜 彩、河原林啓太、岩本 勉
    • Organizer
      第55回小児歯科学会大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 当科における10年間の口唇口蓋裂児の実態調査2017

    • Author(s)
      宮嵜 彩、杉本明日菜、井上秀人、北村尚正、上田公子、河原林啓太、赤澤友基、長谷川智一、岩本 勉
    • Organizer
      第55回小児歯科学会大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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