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

The mechanisms of Cthrc1 action in stimulating osteoblastogenesis as a couling factor and application for drug development

Research Project

Project/Area Number 16K08681
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Human pathology
Research InstitutionNational Center for Geriatrics and Gerontology

Principal Investigator

TAKESHITA Sunao  国立研究開発法人国立長寿医療研究センター, 運動器疾患研究部, 室長 (50263009)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsカップリング因子 / Cthrc1 / Waif1 / Wnt / PKCδ / RANKL / リモデリング / クラストカイン / 骨代謝 / 受容体 / 骨形成 / 骨芽細胞分化 / 骨再生
Outline of Final Research Achievements

We found that Cthrc1 as a coupling factor stimulates osteoblastogenesis by PKCδ-ERK-Rac1 activation through Waif1. Osteoblast-specific Waif1 cKO mice showed a high bone mass with reduction of both bone formation and resorption. Waif1 surface expression is required for Rankl expression and osteoclastogenesis. Waif1 cKO mice exhibited impaired bone mass recovery after RANKL injections, phenocopying osteoclast-specific Cthrc1 cKO mice. These results provide evidence for Waif1 on stromal/osteoblastic cells as a receptor of osteoclast-secreted Cthrc1, and suggest that Waif1 serves an important coupling function of bone resorption to formation. Then, in order to obtain Waif1 antibodies mimicking Cthrc1 stimulation, we established monoclonal antibodies using soluble Waif1 protein and found osteoblastogenesis-stimulating antibodies by monitoring ALP activity of ST2 cells culturing with them.

Academic Significance and Societal Importance of the Research Achievements

カップリング因子を骨粗鬆症の治療薬に応用する試みは例がない。Cthrc1のTgマウスは高骨量であることからCthrc1が骨形成を促進することは明白であり、生体における異常な機能なども報告されていない。Cthrc1を創薬のリード薬としての基盤を築くためにCthrc1の受容体としてWaif1を同定し、Waif1刺激抗体は骨代謝を改善する治療薬となる可能性が予想される。骨粗鬆症治療において、骨吸収抑制剤との併用により骨吸収を抑え同時にカップリング機能亢進により骨形成を促進することでネットの骨量を増やし骨質をも改善する新しい骨粗鬆症治療薬と革新的な治療法の開発に応用できることが期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (18 results)

All 2018 2017 2016 Other

All Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results) Book (3 results) Remarks (4 results)

  • [Journal Article] WAIF1 is a cell-surface CTHRC1 binding protein coupling bone resorption and formation.2018

    • Author(s)
      Matsuoka K, Kohara Y, Naoe Y, Watanabe A, Ito M, Ikeda K, Takeshita S.
    • Journal Title

      Journal of Bone and Mineral Research

      Volume: - Issue: 8 Pages: 1500-1512

    • DOI

      10.1002/jbmr.3436

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A ERK/RSK-mediated negative feedback loop regulates M-CSF-evoked PI3K/AKT activation in macrophages.2018

    • Author(s)
      Wang L, Iorio C, Yan K, Yang H, Takeshita S, Kang S, Neel BG, Yang W.
    • Journal Title

      FASEB Journal

      Volume: 32 Issue: 2 Pages: 875-887

    • DOI

      10.1096/fj.201700672rr

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Serum CTX levels and histomorphometric analysis in Src versus RANKL knockout mice.2017

    • Author(s)
      Sunao Takeshita, Toshio Fumoto, Masako Ito, Kyoji Ikeda
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: 印刷中 Issue: 3 Pages: 264-273

    • DOI

      10.1007/s00774-017-0838-3

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Coupling of bone resorption and formation.2017

    • Author(s)
      Takeshita S.
    • Journal Title

      Clinical Calcium

      Volume: 27 Pages: 1705-1711

    • Related Report
      2017 Research-status Report
  • [Presentation] Macrophage-secreted Emilin2 Stimulates Chemotaxis and Differentiation in Stromal/Osteoblastic Cells.2018

    • Author(s)
      Kohara Y, Watanabe A, Ogiso N, Takeshita S
    • Organizer
      The 40th Annual Meeting of the American Society for Bone and Mineral Research.
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Waif1 on osteoblasts functions as a receptor for osteoclast-derived Cthrc1 in bone remodeling.2018

    • Author(s)
      Kohara Y, Matsuoka K, Watanabe A, Ito M, Ikeda K, Takeshita S
    • Organizer
      第16回松山国際学術シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 破骨細胞が産生するカップリング因子2018

    • Author(s)
      竹下 淳
    • Organizer
      第60回歯科基礎医学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Waif1 on osteoblasts regulates bone remodeling as a receptor for osteoclast-derived Cthrc1.2018

    • Author(s)
      Kohara Y, Matsuoka K, Watanabe A, Ito M, Ikeda K, Takeshita S
    • Organizer
      第10回NAGOYAグローバルリトリート
    • Related Report
      2017 Research-status Report
  • [Presentation] Osteoclast-secreted Cthrc1 Regulates Bone Remodeling through Waif1, a Receptor on Stromal/Osteoblastic Cells.2017

    • Author(s)
      Kohara Y, Matsuoka K, Ito M, Ikeda K, Takeshita S
    • Organizer
      The 39th Annual Meeting of the American Society for Bone and Mineral Research
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cthrc1はWaif1を介して骨カップリング機能を制御する2017

    • Author(s)
      小原幸弘、松岡和彦、直江吉則、渡邉 淳、伊東昌子、池田恭治、竹下 淳
    • Organizer
      第2回Skeletal Science Retreat
    • Related Report
      2017 Research-status Report
  • [Presentation] Serum CTX levels and histomorphometric analysis in Src versus RANKL knockout mice.2016

    • Author(s)
      Takeshita S, Fumoto T, Ito M, Ikeda K
    • Organizer
      The 38th Annual Meeting of the American Society for Bone and Mineral Research.
    • Place of Presentation
      Atlanta, Georgia, USA
    • Year and Date
      2016-09-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Book] CLINICAL CALCIUM2017

    • Author(s)
      竹下 淳
    • Total Pages
      7
    • Publisher
      医薬ジャーナル社
    • Related Report
      2017 Research-status Report
  • [Book] 医科学応用研究財団研究報告20152017

    • Author(s)
      竹下 淳
    • Total Pages
      4
    • Publisher
      公益財団法人鈴木謙三記念医科学応用研究財団
    • Related Report
      2016 Research-status Report
  • [Book] THE BONE2016

    • Author(s)
      竹下 淳
    • Total Pages
      6
    • Publisher
      株式会社メディカルビュー社
    • Related Report
      2016 Research-status Report
  • [Remarks] 国立研究開発法人国立長寿医療研究センター運動器疾患研究部骨代謝制御研究室

    • URL

      http://www.ncgg.go.jp/research/department/bjd/kotutaisya.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 国立長寿医療研究センター 研究所 運動器疾患研究部 骨代謝制御研究室

    • URL

      http://www.ncgg.go.jp/research/department/bjd/kotutaisya.html

    • Related Report
      2017 Research-status Report
  • [Remarks] 国立長寿医療研究センター 研究所 年報

    • URL

      http://www.ncgg.go.jp/research/annualreport/index.html

    • Related Report
      2017 Research-status Report 2016 Research-status Report
  • [Remarks] 国立長寿医療研究センター 研究所 運動器疾患研究部骨代謝制御研究室 研究実績

    • URL

      http://www.ncgg.go.jp/research/department/bjd/kotutaisya.html

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi