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Analysis of the relaxin effect for orthopedic treatment

Research Project

Project/Area Number 18K17246
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Ito Yosuke  東京医科歯科大学, 歯学部附属病院, 非常勤講師 (50706918)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsリラキシン / 顎顔面骨縫合 / 縫合の拡大 / 歯学 / 歯科矯正学 / 顎矯正治療
Outline of Final Research Achievements

We performed preliminary experiment using rat mid-palatal suture. This study analyzed the effect of RLN on the expansion of rat mid-palatal suture (MPS) with a magnetically target-directing liposome-based drug delivery system.Taken together, magnetically directed Relaxin2 carried by liposomes were found to be a unique, effective method for suture expansion.
Our data revealed that Relaxin2 enhanced suture expansion via MMP-1 secretion in the sutural fibroblasts and new bone formation via periostin expression in osteoblasts at the osteogenic front.

Academic Significance and Societal Importance of the Research Achievements

リラキシンを顎矯正治療へ応用した報告は過去に認められず、学術的に独自性を有するものと考えられ、効果が立証できれば、効果的に顎整形力を作用させることが可能となるため、治療効率の向上とともに、骨格的不正咬合の発現抑制に寄与する研究であると考えられる。したがって、EBMに基づく医療の確立と、骨格的不正咬合の発現抑制の可能性を持つ新しい顎矯正歯科治療法の開発に寄与する本研究成果は、成長期に顎矯正歯科治療を行うことで外科的矯正治療の適応症例を減少させる可能性を有する臨床に直結した卓越した成果が期待できる研究であると考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (5 results)

All 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Relaxin 2 carried by magnetically directed liposomes accelerates rat midpalatal suture expansion and subsequent new bone formation.2019

    • Author(s)
      Kamimoto H, Kobayashi Y, Moriyama K.
    • Journal Title

      Bone reports

      Volume: 14 Pages: 100202-100202

    • DOI

      10.1016/j.bonr.2019.100202

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 磁性制御型リポソームにより標的指向化されたリラキシンはラット正中口蓋縫合拡大と骨形成を促進する2019

    • Author(s)
      紙本裕幸、小林起穂、森山啓司
    • Organizer
      第84回口腔病学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Relaxin Accelerates Rat Mid-palatal Suture Expansion and Subsequent Bone Formation2018

    • Author(s)
      Kamimoto Y, Kobayashi Y, Moriyama K
    • Organizer
      96th General Session & Exhibition of International Association for Dental Research
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Relaxin Accelerates Rat Midpalatal Suture Expansion and Subsequent Bone Formation2018

    • Author(s)
      Kamimoto Y, Kobayashi Y, Moriyama K
    • Organizer
      ASBMR 2018 Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 磁性制御型リポソームにより標的指向化されたリラキシンはラット正中口蓋縫合各台と骨形成を促進する2018

    • Author(s)
      紙本裕幸、小林起穂、森山啓司
    • Organizer
      第77回日本矯正歯科学会学術大会
    • Related Report
      2018 Research-status Report

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

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