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Biological function of osteoporotic drugs on bone-specific blood vessels and perivascular cells

Research Project

Project/Area Number 22K21006
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0907:Oral science and related fields
Research InstitutionHokkaido University

Principal Investigator

Maruoka Haruhi  北海道大学, 歯学研究院, 助教 (40962577)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords血管連関 / ビスホスホネート / 活性型ビタミンD / 骨特異的血管 / 血管周囲細胞 / 骨血管連関 / 活性型ビタミンD
Outline of Research at the Start

申請者は、副甲状腺ホルモン(PTH)による骨特異的血管の数・管腔径の増加、骨芽細胞系細胞および血管周囲細胞への作用を報告してきた。一方、血管や血管周囲細胞には、飲み込み作用やビタミンD受容体が発現することから、骨粗鬆症治療薬であるビスホスホネートや活性型ビタミンD3製剤の影響が及ぶ可能性が考えられる。そこで、本研究では、ビスホスホネートや活性型ビタミンD3製剤の血管や血管周囲細胞に対する作用、また逆に、これら薬剤が作用した血管・血管周囲細胞による骨芽細胞系細胞への影響について、動物モデルを用いたin vivo解析を中心に進める。

Outline of Final Research Achievements

In the ALN administrated mice, the diameter and area of bone-specific blood vessels were decreased, and vascular endothelial cells formed numerous reticulum and microtubules toward the vascular lumen. It suggests that ALN causes microstructural changes in the vascular wall. The upregulation of endomucin, its transcription factors, and angiogenesis inhibitory factors, which are involved in maintaining the three-dimensional luminal morphology of the vascular wall, in bone tissue from ALN- administrated mice. It indicates that, while abnormal vascular microstructure and angiogenesis are suppressed, a repair mechanism may be at work to correct these abnormalities.
In addition, ALP-positive/PHOSPHO1-positive osteoblasts were markedly decreased in ALN-administrated mice, suggesting that ALN may also affect bone-specific blood vessels and osteoblasts.

Academic Significance and Societal Importance of the Research Achievements

現在用いられているPTHやビスホスホネート、活性型ビタミンD3製剤などの骨粗鬆症治療薬は、破骨細胞などの骨の細胞群への作用ばかりが注目されてきた。本研究では、骨粗鬆症治療薬の血管や血管周囲細胞に対する作用ならびに、薬剤が作用した血管・血管周囲細胞による骨芽細胞系細胞への影響を明らかにし、骨血管連関および骨代謝調節機構のメカニズムに焦点をあてることにより、骨粗鬆症治療薬の新規作用解明に取り組んでおり、高い学術的独創性と創造性に富んでいると思われる。ゆえに本研究開発により、骨粗鬆症治療薬の新規開発が進み、超高齢化社会となった現在において、健康寿命の延伸に寄与できると考えられる。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (5 results)

All 2023 2022

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (1 results)

  • [Journal Article] Early gene expression profiles of anabolic and catabolic molecules in murine bone after a single PTH injection2023

    • Author(s)
      Yamamoto Tomomaya、Maruoka Haruhi、Hongo Hiromi、Yoshino Hirona、Haraguchi-Kitakamae Mai、Liu Xuanyu、Yao Qi、Li Minqi、Amizuka Norio、Hasegawa Tomoka
    • Journal Title

      Journal of Oral Biosciences

      Volume: 65 Issue: 4 Pages: 395-400

    • DOI

      10.1016/j.job.2023.08.003

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Histochemical examination of blood vessels in murine femora with intermittent PTH administration2022

    • Author(s)
      Maruoka Haruhi、Zhao Shen、Yoshino Hirona、Abe Miki、Yamamoto Tomomaya、Hongo Hiromi、Haraguchi-Kitakamae Mai、Nasoori Alireza、Ishizu Hotaka、Nakajima Yuhi、Omaki Masayuki、Shimizu Tomohiro、Iwasaki Norimasa、Luiz de Freitas Paulo Henrique、Li Minqi、Hasegawa Tomoka
    • Journal Title

      Journal of Oral Biosciences

      Volume: 64 Issue: 3 Pages: 329-336

    • DOI

      10.1016/j.job.2022.05.003

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immunolocalization of endomucin-reactive blood vessels and α-smooth muscle actin-positive cells in murine nasal conchae2022

    • Author(s)
      Maruoka Haruhi、Hasegawa Tomoka、Yoshino Hirona、Abe Miki、Haraguchi-Kitakamae Mai、Yamamoto Tomomaya、Hongo Hiromi、Nakanishi Ko、Nasoori Alireza、Nakajima Yuhi、Omaki Masayuki、Sato Yoshiaki、Luiz de Freitas Paulo Henrique、Li Minqi
    • Journal Title

      Journal of Oral Biosciences

      Volume: 64 Issue: 3 Pages: 337-345

    • DOI

      10.1016/j.job.2022.05.001

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Histological functions of parathyroid hormone on bone formation and bone blood vessels2022

    • Author(s)
      Maruoka Haruhi、Yamamoto Tomomaya、Zhao Shen、Hongo Hiromi、Abe Miki、Ishizu Hotaka、Yoshino Hirona、Luiz de Freitas Paulo Henrique、Li Minqi、Hasegawa Tomoka
    • Journal Title

      Journal of Oral Biosciences

      Volume: 64 Issue: 3 Pages: 279-286

    • DOI

      10.1016/j.job.2022.08.002

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] PTH投与後におけるGli1発現未分化間葉系細胞の骨組織内の細胞分化・分布について.2023

    • Author(s)
      長谷川智香、丸岡春日、山本知真也、石津帆高、溝口利英、細矢明宏、網塚憲生
    • Organizer
      第41回日本骨代謝学会学術集会
    • Related Report
      2023 Annual Research Report

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Published: 2022-09-01   Modified: 2025-01-30  

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