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A study for bone resorption of jaw at mechanical stress

Research Project

Project/Area Number 24592921
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Prosthetic dentistry
Research InstitutionKyushu University

Principal Investigator

MOROI RYOJI  九州大学, 大学病院, 助教 (70325471)

Co-Investigator(Kenkyū-buntansha) 牧平 清超  九州大学, 歯学研究科(研究院), 准教授 (80304450)
坂井 貴子  九州大学, 大学病院, 講師 (60128022)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords骨吸収 / メカニカルストレス / RANKL / 破骨細胞
Outline of Final Research Achievements

Mechanical loading conditions result in alteration in bone mineral density and quantity, which may be partly attributed to an imbalance in bone formation and resorption. To investigate the effect of mechanical loading (compress and stretch) on osteoblast and osteoclast differentiation, we used a stretch system to culture MC3T3-E1 and RAW264.7 cells. The expressions of Runx2, EphB4, MMP9 and TACE mRNA in MC3T3-E1 cells were enhanced under compressive force, while the expressions of Osterix, ColI and EphB4 mRNA were inhibited under stretch force. On the other hand, compressive force inhibited the enhancement of TRAP and DC-STAMP mRNA in RAW264.7 cells by RANKL. Stretch force had no effect on the enhancement of DC-STAMP mRNA expression by RANKL.
These results, taken together, demonstrate that the responses of MC3T3-E1 and RAW264.7 cells to compressive and stretch force are different.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (7 results)

All 2014 2013 2012

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (6 results)

  • [Journal Article] 周期性伸展刺激がRAW264.7細胞とMC3T3-E1細胞に与える影響2012

    • Author(s)
      牧平清超,峯裕一,首藤崇裕,寺田善博,二川浩樹
    • Journal Title

      老年歯科医学

      Volume: 27 Pages: 77-86

    • NAID

      10031137201

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 動物モデルを用いたチタン製インプラント周囲組織中のチタンに関する解析2014

    • Author(s)
      動物モデルを用いたチタン製インプラント周囲組織中のチタンに関する解析
    • Organizer
      日本歯科理工学会九州地方会夏期セミナー
    • Place of Presentation
      鹿児島県鹿児島市
    • Year and Date
      2014-08-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] ラット実験モデルを用いたインプラント周囲粘膜炎の解析2014

    • Author(s)
      首藤崇裕, 和智貴紀, 片山洋子, 篠原義憲, 的野良就, 諸井亮司, 牧平清超
    • Organizer
      日本補綴歯科学会第123回学術大会
    • Place of Presentation
      宮城県仙台市
    • Year and Date
      2014-05-24 – 2014-05-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] インプラント体表面からの溶出チタンの検討2014

    • Author(s)
      和智貴紀, 首藤崇裕, 中村優介, 的野良就, 篠原義憲, 諸井亮司, 牧平清超
    • Organizer
      日本補綴歯科学会第123回学術大会
    • Place of Presentation
      宮城県仙台市
    • Year and Date
      2014-05-24 – 2014-05-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] チタンイオンとLPSが歯周組織に与える影響2013

    • Author(s)
      和智貴紀,首藤崇裕,篠原義憲, 的野良就,諸井亮司, 栗田賢一, 牧平清超
    • Organizer
      日本補綴歯科学会九州支部学術大会
    • Place of Presentation
      佐賀
    • Related Report
      2013 Research-status Report
  • [Presentation] チタンイオン存在下でLPSが歯周組織に与える影響2013

    • Author(s)
      和智貴紀,首藤崇裕,篠原義憲,的野良就,諸井亮司,牧平清超
    • Organizer
      日本歯科理工学会九州地方会(夏期セミナー)
    • Place of Presentation
      長崎
    • Related Report
      2013 Research-status Report
  • [Presentation] 周期性伸展刺激に対する破骨細胞の反応2012

    • Author(s)
      和智貴紀, 牧平清超,首藤崇裕,峯裕一,諸井亮司,二川浩樹,寺田善博
    • Organizer
      日本補綴歯科学会中国四国・九州支部合同学術大会
    • Place of Presentation
      広島市
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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