• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Investigation of integrin peptide therapy regulating stem cell niche for periodontal regeneration

Research Project

Project/Area Number 18K09576
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 InstitutionOkayama University

Principal Investigator

Yamamoto Tadashi  岡山大学, 医歯薬学総合研究科, 准教授 (50432662)

Co-Investigator(Kenkyū-buntansha) 小林 寛也  岡山大学, 医歯薬学総合研究科, 助教 (20710651)
山城 圭介  岡山大学, 大学病院, 講師 (30581087)
高柴 正悟  岡山大学, 医歯薬学総合研究科, 教授 (50226768)
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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsインテグリン / 細胞外基質 / 増殖因子 / 微小環境 / 幹細胞 / 歯周組織再生 / 歯周組織
Outline of Final Research Achievements

Extracellular matrix (ECM) and integrins-mediated microenvironments are important for the recruitment of tissue-resident stem cells. This study investigated the regenerative effects on periodontal tissue by integrin α3-blocking peptide (α325), previously identified as a migration factor of periodontal ligament cells and mesenchymal stem cells. In vivo study using rat horizontal bone defect model and mouse periodontitis model indicated that α325 induced alveolar bone regeneration, equal to or greater than FGF-2. Immunohistochemical analysis indicated that α325 induced mRNA expression of anti-inflammatory cytokines and stem cell marker genes and bone matrix proteins. This study concluded that α325 is a potent peptide-based drug, capable of anti-inflammatory effects and establishing local microenvironments for periodontal regeneration, defined by coordination between growth factors and ECM.

Academic Significance and Societal Importance of the Research Achievements

増殖因子を用いた歯周組織再生治療は一定の成果を挙げつつあるが,その適応症や効果は未だ限定的で,依然としてこの治療を適応できない重症患者が多い。組織再生のためには,増殖因子とECMとの協調した相互作用によって規定される幹細胞の微小環境(幹細胞ニッチ)の構築が必須である。インテグリンペプチドは,ECMのみならず増殖因子のシグナリングをも活性化することによって,組織再生を誘導する幹細胞の微小環境を構築し得ると考えられ,ひいては現在の歯周組織再生療法の適応症拡大と有効性向上に繋がる可能性がある。

Report

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

    (1 results)

All 2020

All Presentation (1 results)

  • [Presentation] インテグリンα3の選択的阻害による微小環境の構築と歯槽骨再生2020

    • Author(s)
      森彩乃,山本直史,河村麻理,井手口英隆,青柳浩明,中村心,岡本憲太郎,平井杏奈,山城圭介,大森一弘,高柴正悟
    • Organizer
      日本歯科保存学会
    • Related Report
      2019 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi