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Analysis of the effect of osteocytes cell death and DAMPs on osteoclastogenesis during tooth movement

Research Project

Project/Area Number 22K17244
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionTohoku University

Principal Investigator

Ohori Fumitoshi  東北大学, 歯学研究科, 助教 (90937129)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords矯正学的歯の移動 / 骨細胞 / 細胞死 / 破骨細胞 / DAMPs / 歯の移動
Outline of Research at the Start

歯に矯正力が加わると、圧迫側に破骨細胞が出現し骨吸収が生じることで歯は移動していく。圧迫側では歯槽骨内の骨細胞が細胞死を起こすことが報告されている。歯の移動に伴い細胞死した骨細胞から放出されるDAMPsが破骨細胞形成に影響を与えていると考えられているが、詳細は不明のままである。本研究は、骨細胞を用いて圧迫側を再現した環境(低酸素・低栄養)で細胞死を誘導し、その際に放出される多種多様なDAMPsをプロテオーム解析で網羅的に解析することで同定し、歯の移動におけるDAMPsの破骨細胞形成に与える影響をin vitroとin vivoの両方で解明することを目標とする。

Outline of Final Research Achievements

We revealed that LCN2 gene expression was increased by RNA-seq analysis of osteocytes cultured under hypoxic conditions. Although LCN2 did not have the direct effect on osteoclast formation, LCN2 indirectly promoted osteoclast formation via other osteocytes. In addition, we found that the factors containing DAMPs released from necrotic osteocytes enhanced osteoclast formation. Our results of the OTM (orthodontic tooth movement) mice suggested that cell death of osteocytes is important for osteoclast formation during orthodontic tooth movement.

Academic Significance and Societal Importance of the Research Achievements

近年、骨細胞が破骨細胞形成に関与していることが示されてきたが、詳細なメカニズムについて未解明な点が多く、その全容解明は骨代謝関連の学問や歯科矯正学における重要研究課題とされている。本研究により、矯正学的歯の移動に伴う低酸素・低栄養環境下において、骨細胞が放出する因子が破骨細胞形成を増強することが示唆された。骨細胞の制御による矯正治療の期間短縮が考えられるだけでなく、骨細胞をターゲットとした炎症性骨疾患等の治療法の確立などに繋がることが期待される。

Report

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

    (10 results)

All 2024 2023 2022

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Effect of age on orthodontic tooth movement in mice2024

    • Author(s)
      Kanou Kayoko、Kitaura Hideki、Noguchi Takahiro、Ohori Fumitoshi、Marahleh Aseel、Kinjo Ria、Ma Jinghan、Ren Jiayi、Ogasawara Kouetsu、Mizoguchi Itaru
    • Journal Title

      Journal of Dental Sciences

      Volume: 19 Issue: 2 Pages: 828-836

    • DOI

      10.1016/j.jds.2023.09.016

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generating Bone Marrow Chimeric Mouse Using GPR120 Deficient Mouse for the Study of DHA Inhibitory Effect on Osteoclast Formation and Bone Resorption2023

    • Author(s)
      Ma Jinghan、Kitaura Hideki、Ohori Fumitoshi、Noguchi Takahiro、Marahleh Aseel、Kinjo Ria、Kanou Kayoko、Ren Jiayi、Miura Mariko、Narita Kohei、Mizoguchi Itaru
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 23 Pages: 17000-17000

    • DOI

      10.3390/ijms242317000

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Azilsartan inhibits inflammation-triggered bone resorption and osteoclastogenesis in vivo via suppression of TNF-α expression in macrophages2023

    • Author(s)
      Fan Ziqiu、Kitaura Hideki、Ren Jiayi、Ohori Fumitoshi、Noguchi Takahiro、Marahleh Aseel、Ma Jinghan、Kanou Kayoko、Miura Mariko、Narita Kohei、Lin Angyi、Mizoguchi Itaru
    • Journal Title

      Frontiers in Endocrinology

      Volume: 14 Pages: 1207502-1207502

    • DOI

      10.3389/fendo.2023.1207502

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Docosahexaenoic acid inhibits TNF-α-induced osteoclast formation and orthodontic tooth movement through GPR1202023

    • Author(s)
      Jinghan Ma, Hideki Kitaura, Saika Ogawa, Fumitoshi Ohori, Takahiro Noguchi, Aseel Marahleh, Yasuhiko Nara, Adya Pramusita, Ria Kinjo, Kayoko Kanou, Akiko Kishikawa, Atsuhiko Ichimura, Itaru Mizoguchi
    • Journal Title

      Front Immunol.

      Volume: eCollection 2022. Pages: 929690-929690

    • DOI

      10.3389/fimmu.2022.929690

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Osteocyte and its Osteoclastogenic Potential2023

    • Author(s)
      Aseel Marahleh
    • Journal Title

      Frontiers in Endocrinology

      Volume: 14 Pages: 1121727-1121727

    • DOI

      10.3389/fendo.2023.1121727

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Analysis of Coating Loss from Coated Stainless Steel Orthodontic Wire2022

    • Author(s)
      Ito Arata、Kitaura Hideki、Noguchi Takahiro、Ohori Fumitoshi、Mizoguchi Itaru
    • Journal Title

      Applied Sciences

      Volume: 12 Issue: 19 Pages: 9497-9497

    • DOI

      10.3390/app12199497

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Salt-Sensitive Hypertension Induces Osteoclastogenesis and Bone Resorption via Upregulation of Angiotensin II Type 1 Receptor Expression in Osteoblasts2022

    • Author(s)
      Adya Pramusita, Hideki Kitaura, Fumitoshi Ohori, Takahiro Noguchi, Aseel Marahleh, Yasuhiko Nara, Ria Kinjo, Jinghan Ma, Kayoko Kanou, Yukinori Tanaka and Itaru Mizoguchi
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 10 Pages: 816764-816764

    • DOI

      10.3389/fcell.2022.816764

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Effect of DAMPs released from osteocyte necroptosis on osteoclastogenesis2023

    • Author(s)
      Ohori F, Kitaura H, Noguchi T, Marahleh A, Ma J, Kanou K, Miura M, Ren J, Narita K, Ren J, Mizoguchi I.
    • Organizer
      American Society for Bone and Mineral Research 2023 Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Involvement of osteocyte necroptosis on osteoclastogenesis during orthodontic tooth movement2023

    • Author(s)
      Ohori F, Kitaura H, Noguchi T, Marahleh A, Ma J, Kanou K, Miura M, Ren J, Ren J, Narita K, Mizoguchi I.
    • Organizer
      The 71st Annual Meeting of Japanese Association for Dental Research
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ネクロプトーシスした骨細胞が矯正学的歯の移動に伴う破骨細胞形成に与える影響2023

    • Author(s)
      大堀文俊、北浦英樹、野口隆弘、Marahleh Aseel、Ma Jinghan、加納佳与子、三浦まり子、成田昂平、溝口到
    • Organizer
      第82回日本矯正歯科学会学術大会
    • Related Report
      2023 Annual Research Report

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Published: 2022-04-19   Modified: 2025-01-30  

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