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

The identification of osteoblast migration factors secreted by macrophages

Research Project

Project/Area Number 17K18438
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Human pathology
Orthopaedic surgery
Research InstitutionEhime University (2018-2019)
National Center for Geriatrics and Gerontology (2017)

Principal Investigator

Kohara Yukihiro  愛媛大学, 医学系研究科, 助教 (50792214)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords骨代謝 / マクロファージ / 骨リモデリング / Emilin2 / 骨形成 / 骨吸収 / モノカイン / 破骨細胞 / 骨芽細胞 / 走化性 / 骨代謝学 / カップリング機構
Outline of Final Research Achievements

It was suggested that macrophages have the potential to support bone formation by osteoblasts and contribute to bone metabolism. However, the molecular mechanisms underlying how macrophages stimulate osteogenesis and regulate bone remodeling have not been characterized. Here, we found that bone marrow macrophage-conditioned medium stimulated chemotaxis in bone marrow stromal ST2 cells. To purify the chemotactic activity from the macrophage-conditioned medium, we performed successive anion-exchange column chromatography by monitoring the chemotactic activity of ST2 cells and identified Emilin2 by LC-MS/MS analysis. Then we provide evidence that macrophages regulate the migration of bone marrow stromal cells through the production of Emilin2.

Academic Significance and Societal Importance of the Research Achievements

骨粗鬆症は、低骨量と骨組織の微細構造の異常を特徴とし、骨折の危険性が増大する疾患である。患者数は、我が国では約1,300万人と推測され、患者の生活の質を著しく損なうこと、現行のビスフォスフォネート製剤では副作用が強いことから新しい治療法の開発が求められている。研究代表者が新規に骨代謝制御因子として同定したEmilin2が骨粗鬆症に対する新規の創薬シーズとなる可能性がある。また、マクロファージ/破骨細胞系におけるヘッジホッグシグナルが加齢性の骨量減少を制御していることを明らかにしたことから、ヘッジホッグシグナルに対する介入もまた、新規の治療法の開発につながる可能性がある。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Hedgehog inhibitors suppress osteoclastogenesis in in vitro cultures, and deletion of Smo in macrophage/osteoclast lineage prevents age-related bone loss.2020

    • Author(s)
      Kohara Y(責任共著者), Haraguchi R, Kitazawa R, Imai Y, Kitazawa S.
    • Journal Title

      Int J Mol Sci.

      Volume: in press

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Knockdown of Lrp1 in RAW264?cells inhibits osteoclast differentiation and osteoclast-osteoblast interactions in?vitro2020

    • Author(s)
      Kohara Yukihiro、Haraguchi Ryuma、Kitazawa Riko、Kitazawa Sohei
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 523 Issue: 4 Pages: 961-965

    • DOI

      10.1016/j.bbrc.2020.01.065

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ヘッジホッグシグナルトランスデューサーSmoothenedの阻害は破骨細胞形成を抑制する2019

    • Author(s)
      小原幸弘, 原口竜摩, 北澤理子, 北澤理子, 北澤荘平
    • Organizer
      日本組織細胞化学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ヘッジホッグシグナル阻害剤であるCyclopamineは破骨細胞形成を抑制する2019

    • Author(s)
      小原 幸弘, 原口 竜摩, 北澤 理子, 北澤 荘平
    • Organizer
      日本骨代謝学会学
    • Related Report
      2019 Annual Research Report
  • [Presentation] Macrophage-secreted Emilin2 Stimulates Chemotaxis and Differentiation in Stromal/Osteoblastic Cells2018

    • Author(s)
      Yukihiro Kohara, Atsuchi Watanabe, Noboru Ogiso, Sunao Takeshita
    • Organizer
      The 40th Annual Meeting of the American Society for Bone & Mineral Research 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Waif1 on osteoblasts functions as a receptor for osteoclast-derived Cthrc1 in bone remodeling2018

    • Author(s)
      Yukihiro Kohara, Kazuhiko Matsuoka, Atsushi Watanabe, Masako Ito, Kyoji Ikeda, Sunao Takeshita
    • Organizer
      Protein Island Matsuyama 2018 International Symposium
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Waif1 on osteoblasts regulates bone remodeling as a receptor for osteoclast-derived Cthrc12018

    • Author(s)
      Yukihiro Kohara, Kazuhiko Matsuoka, Atsushi Watanabe, Masako Ito, Kyoji Ikeda, Sunao Takeshita
    • 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 Cells2017

    • Author(s)
      Yukihiro Kohara, Kazuhiko Matsuoka, Masako Ito, Kyoji Ikeda, Sunao Takeshita
    • Organizer
      The 39th Annual Meeting of the American Society for Bone & Mnineral Research 2017
    • 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構を制御する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
      日本骨代謝学会 The 2nd Skeletal Science Retreat
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi