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Molecular change in condylar cartilage and subchondral bone accompanying aging and temporomandibular joint osteoarthritis

Research Project

Project/Area Number 19592133
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Morphological basic dentistry
Research InstitutionTokyo Dental College

Principal Investigator

SHIBUKAWA Yoshihiro  Tokyo Dental College, 歯学部, 准教授 (50297347)

Co-Investigator(Kenkyū-buntansha) OTA Mikio  東京歯科大学, 歯学部, 講師 (30322473)
MURAMATSU Takashi  東京歯科大学, 歯学部, 講師 (00276982)
YAMADA Satoru  東京歯科大学, 歯学部, 教授 (20103351)
Research Collaborator KOYAMA Eiki  トーマスジェファーソン大学, 医学部・整形外科学講座 基礎研究部門, 准教授
PACIFICI Maurizio  トーマスジェファーソン大学, 医学部・整形外科学講座 基礎研究部門, 教授
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords口腔解剖学(含組織学・発生学) / 下顎頭 / 顎関節 / 変形性顎関節症 / 加齢 / 遺伝子発現 / インディアンヘッジホッグ
Research Abstract

Objectives : Temporomandibular joint (TMJ) osteoarthritis (OA) is mainly caused by aging or occlusal abnormalities such as loss of occlusion. However, the mechanism underlying the early stages of TMJ-OA and its progression remain to be fully clarified. One major problem in OA is the low rate of matrix synthesis and failure of chondrocytes to exceed the rate of matrix degradation. Indian hedgehog (Ihh) is essential for embryonic mandibular condylar growth and disc primordium formation, and its expression is also required for completion of post-natal TMJ growth and organization. In this study, a decrease was observed in expression of collagen II and Aggrecan, the main extra-cellular-matrix (ECM) components of condylar cartilage, in post-natal Ihh-deficient condyles, which is indicative of OA lesions. The purpose of this study was to determine the role of Ihh in the development of TMJ-OA accompanying aging and loss of occlusion in Senescence Accelerated Mouse.
Methods : We used two 4-month … More -old strains : senescence-accelerated prone (SAMP8) mice and senescence-accelerated resistant (SAMR1) mice as a control, each strain comprising 40 males. Each strain was divided into two groups : (1) a milling group (MG : crowns of upper and lower bilateral molars and incisors milled to loss of occlusion and soft dough diet for 4-8 weeks) ; and (2) a non-milling group (NG : no molar or incisor milling and hard pellet diet for 4-8 weeks). The mandibular condyle was evaluated by histology and gene expression by real time polymerase chain reaction.
Results : In the MG, both strains showed a reduction in thickness of the condylar cartilage and gene expression of type II collagen (Col II), Aggrecan and Ihh, and a gradual increase in gene expression of matrix metalloproteinase (MMP)-13 and metalloproteinase with thrombospondin type 1 motif-5 (ADAMTS5) over 4-8 weeks compared to in the NG. Although a significant reduction was observed in gene expression of Col II, Aggrecan and Ihh in the SAMP8 MG compared to in the SAMR1 MG over 4-8 weeks, gene expression of ADAMTS5 and MMP13 showed a significant increase compared to in SAMR1 over 4-8 weeks.
Conclusion : The results suggest that loss of occlusion affects extracellular matrix remodeling, leading to degradation of the mandibular condyle, and that hedgehog signaling affects extracellular matrix remodeling.
The observed degradation of extracellular matrix in SAMP8 indicated development toward more serious TMJ-OA. Less

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (15 results)

All 2010 2009 2008 2007 Other

All Journal Article (7 results) (of which Peer Reviewed: 6 results) Presentation (8 results)

  • [Journal Article] Indian hedgehog roles in post-natal TMJ development and organization.2010

    • Author(s)
      Ochiai T, Shibukawa Y, Nagayama M, Mundy C, Yasuda T, Okabe T, Shimono K, Kanyama M, Hasegawa H, Maeda Y, Lanske B, Pacifici M, Koyama E.
    • Journal Title

      Journal of Dental Research 89(4)

      Pages: 349-354

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Indian Hedgehog Roles in Post-natal TMJ Development and Organization.2010

    • Author(s)
      Takanaga Ochiai
    • Journal Title

      Journal of Dental Research 89(4)

      Pages: 349-354

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 頭蓋底軟骨結合-その成長を調節する分子メカニズムと異常-2009

    • Author(s)
      永山元彦
    • Journal Title

      岐阜県歯科医師会雑誌 35(3)

      Pages: 96-104

    • Related Report
      2009 Annual Research Report
  • [Journal Article] A distinct cohort of progenitor cells participates in synovial joint and articular cartilage formation during mouse limb skeletogenesis.2008

    • Author(s)
      Koyama E, Shibukawa Y, Nagayama M, Sugito H, Young B, Yuasa T, Okabe T, Ochiai T, Kamiya N, Rountree RB, Kingsley DM, Iwamoto M, Enomoto-Iwamoto M, Pacifici M.
    • Journal Title

      DevBiol 316(1)

      Pages: 62-73

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] A distinct cohort of progenitor cells participates in synovial joint and articular cartilage formation during mouse limb skeletogenesis.2008

    • Author(s)
      Eiki Koyama
    • Journal Title

      Developmental Biology 316(1)

      Pages: 62-73

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temporomandibular Joint Formation and Condyle Growth Require Indian Hedgehog Signaling.2007

    • Author(s)
      Yoshihiro Shibukawa
    • Journal Title

      Developmental Dynamics 236

      Pages: 426-434

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conditional Kif3a ablation causes abnormal hedgehog signaling topography,growth plate dysfunction and excessive bone and cartilage formation in mouse cranial base synchondroses.2007

    • Author(s)
      Eiki Koyama
    • Journal Title

      Development and Disease 134

      Pages: 2159-2169

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Expression of Indian Hedgehog during postnatal development of mandibular condyle2010

    • Author(s)
      Y. Shibukawa, Y. Ishizuka, T. Kinumatsu, S. Yamada
    • Organizer
      38th Meeting of the AADR Washington
    • Place of Presentation
      DC, USA
    • Related Report
      2009 Final Research Report
  • [Presentation] 生後マウス下顎頭軟骨の形態形成におけるIndian Hedgehogの役割2009

    • Author(s)
      渋川義宏
    • Organizer
      第288回東京歯科大学学会(総会)
    • Place of Presentation
      東京歯科大学千葉校舎
    • Year and Date
      2009-10-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] 顎関節の形態形成におけるIndian HedgehogとGli3の役割2008

    • Author(s)
      渋川義宏、米津博文
    • Organizer
      第21回日本顎関節学会学術大会
    • Place of Presentation
      大阪
    • Year and Date
      2008-07-26
    • Related Report
      2009 Final Research Report
  • [Presentation] 顎関節の形態形成におけるIndian HedgehogとGli3の役割2008

    • Author(s)
      渋川 義宏
    • Organizer
      第21回日本顎関節学会総会・学術大会
    • Place of Presentation
      大阪(リーガロイヤルホテル大阪)
    • Related Report
      2008 Annual Research Report
  • [Presentation] 下顎頭の形態形成におけるIndian Hedgehogの役割2007

    • Author(s)
      渋川 義宏
    • Organizer
      第283回東京歯科大学学会(例会)
    • Place of Presentation
      千葉
    • Year and Date
      2007-06-02
    • Related Report
      2007 Annual Research Report
  • [Presentation] 下顎頭の形態形成におけるIndian Hedgehogの役割2007

    • Author(s)
      渋川 義宏
    • Organizer
      第20回日本顎関節学会総会・学術大会
    • Place of Presentation
      仙台
    • Related Report
      2007 Annual Research Report
  • [Presentation] 下顎頭の発生過程におけるIndian HedgehogとGli3の役割2007

    • Author(s)
      渋川 義宏
    • Organizer
      第284回東京歯科大学学会(総会)
    • Place of Presentation
      千葉
    • Related Report
      2007 Annual Research Report
  • [Presentation] 山田了加齢および咬合の喪失に伴う下顎頭の形態変化におけるIndian Hedgehogの役割

    • Author(s)
      石塚洋一、衣松高志、林智子、太田幹夫、渋川義宏
    • Organizer
      第53回春季日本歯周病学会学術大会
    • Place of Presentation
      盛岡
    • Related Report
      2009 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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