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Identification of novel mesenchymal cells regulating bone homeostasis

Research Project

Project/Area Number 19K18943
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57010:Oral biological science-related
Research InstitutionThe University of Tokyo (2020)
Tokyo Medical and Dental University (2019)

Principal Investigator

Tsukasaki Masayuki  東京大学, 大学院医学系研究科(医学部), 特任助教 (20829527)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords骨免疫 / 骨代謝 / 破骨細胞 / OPG / 骨格幹細胞 / 骨膜 / 骨成長 / 骨膜幹細胞
Outline of Research at the Start

骨粗鬆症やロコモティブ症候群といった運動器障害は健康寿命の主要な阻害要因となっており、骨恒常性の維持とその破綻機構の理解が必須である。これまで、骨髄内には骨芽細胞や脂肪細胞への分化能を有する間葉系前駆細胞が存在し、骨形成や造血制御に寄与することが報告されている。しかしながら、皮質骨により骨髄環境から隔絶された骨外膜に存在する細胞の、骨代謝や造血への寄与に関しては殆ど不明であった。我々は、骨外膜に局在し、骨量や骨形態を制御する細胞集団HPMsおよびその機能に必須の遺伝子Hmtfを同定した。本研究では、この新規細胞及び遺伝子の機能解析を通して、新たな骨代謝および造血制御メカニズムの解明を目指す。

Outline of Final Research Achievements

While exploring novel regulators of bone metabolism, we found a protein post-translational modification enzyme Hmtf, which is highly expressed in bone tissue. We have found that Hmtf is an essential factor for the maintenance of skeletal stem cells in the periosteum. We also focused on OPG, a central molecule in the regulation of bone metabolism. We generated OPG-floxed mice and found that OPG is mainly produced by osteoblasts in the bone, intestinal M cells in the intestine, and thymic medullary epithelial cells in the thymus. In addition, we analyzed the differentiation pathway of osteoclasts by using single-cell RNA-seq, and clarified the biological events that take place during the fate determination of osteoclasts.

Academic Significance and Societal Importance of the Research Achievements

本研究において我々は、骨を保護するタンパクを産生する細胞の同定と、骨を破壊する細胞が作られる仕組みの解明に成功した。骨の恒常性を制御する細胞の多様性や機能を詳細に解明することは、骨粗鬆症、関節リウマチ、歯周病、がん骨転移といった様々な骨疾患の病態理解や、新しい治療法開発につながると期待される。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (27 results)

All 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (18 results) (of which Invited: 14 results) Remarks (2 results)

  • [Int'l Joint Research] The University of British Columbia(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] BSRC Alexander Fleming(ギリシャ)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Plasma cells promote osteoclastogenesis and periarticular bone loss in autoimmune arthritis2021

    • Author(s)
      Komatsu N, Win S, Yan M, Huynh CN N, Sawa S, Tsukasaki M, Terashima A, Pluemsakunthai W, Kollias G, Nakashima T and Takayanagi H
    • Journal Title

      J Clin Invest.

      Volume: 131 Issue: 6 Pages: 1-8

    • DOI

      10.1172/jci143060

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] tepwise cell fate decision pathways during osteoclastogenesis at single-cell resolution.2021

    • Author(s)
      Tsukasaki M, Huynh NC, Okamoto K, Muro R, Terashima A, Kurikawa Y, Komatsu N, Pluemsakunthai W, Nitta T, Abe T, Kiyonari H, Okamura T, Sakai M, Matsukawa T, Matsumoto M, Kobayashi Y, Penninger JM, Takayanagi H
    • Journal Title

      Nat Metab

      Volume: 2 Issue: 12 Pages: 1382-1390

    • DOI

      10.1038/s42255-020-00318-y

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RANKL and osteoimmunology in periodontitis2020

    • Author(s)
      Tsukasaki Masayuki
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: 39 Issue: 1 Pages: 82-90

    • DOI

      10.1007/s00774-020-01165-3

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] OPG Production Matters Where It Happened.2020

    • Author(s)
      Tsukasaki M, Asano T, Muro R, Huynh NC, Komatsu N, Okamoto K, Nakano K, Okamura T, Nitta T, Takayanagi H
    • Journal Title

      Cell Rep

      Volume: 32 Issue: 10 Pages: 1-10

    • DOI

      10.1016/j.celrep.2020.108124

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Osteoimmunology: evolving concepts in bone-immune interactions in health and disease2019

    • Author(s)
      Tsukasaki Masayuki、Takayanagi Hiroshi
    • Journal Title

      Nature Reviews Immunology

      Volume: 19 Issue: 10 Pages: 626-642

    • DOI

      10.1038/s41577-019-0178-8

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 先端技術で切り拓く骨免疫・骨代謝学の最前線2020

    • Author(s)
      塚崎雅之
    • Organizer
      Implant Tissue engineering Dental Netwok-Tokyo
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 歯科医療従事者のための「骨免疫学」入門と最前線2020

    • Author(s)
      塚崎雅之
    • Organizer
      日本歯科保存学会2020年度秋季学術大会(第153回) 教育講演
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 骨免疫学の最前線2020

    • Author(s)
      塚崎雅之
    • Organizer
      第40回日本骨形態計測学会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Periodontitis as an “osteoimmune” disease2020

    • Author(s)
      塚崎雅之
    • Organizer
      The 68th Annual Meeting of Japanese Association for Dental Research
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 骨膜幹細胞による骨成長制御2020

    • Author(s)
      塚崎雅之, 小松 紀子, Warunee Pluemsakuntha, 高柳 広
    • Organizer
      第5回日本骨免疫学会ウィンタースクール
    • Related Report
      2019 Research-status Report
  • [Presentation] Host defense against bacterial infection by the osteoimmune dialogue2019

    • Author(s)
      塚崎雅之
    • Organizer
      第92回日本内分泌学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨免疫相互作用による生体防御2019

    • Author(s)
      塚崎雅之
    • Organizer
      東京歯科大学 大学院セミナー
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨外膜間葉系前駆細胞の機能に必須の遺伝子Hmtfの同定2019

    • Author(s)
      塚崎雅之, 小松 紀子, Warunee Pluemsakuntha, 中島友紀, 高柳 広
    • Organizer
      第5回 日本骨免疫学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 骨免疫学が紐解くインプラント臨床の分子基盤2019

    • Author(s)
      塚崎雅之
    • Organizer
      Club22 特別講演
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨免疫連関による生体防御2019

    • Author(s)
      塚崎雅之
    • Organizer
      第20回 運動器科学研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 口腔バリアにおける骨免疫相互作用と生体防御2019

    • Author(s)
      塚崎雅之
    • Organizer
      岡山大学 第19回 BioForum@Dental School
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨免疫学の新時代へ向けて2019

    • Author(s)
      塚崎雅之
    • Organizer
      第1回東京大学医学部 血清学教室・免疫学教室同窓会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨免疫学および感染症の最前線2019

    • Author(s)
      塚崎雅之
    • Organizer
      第61回歯科基礎医学会 日本学術会議シンポジウム
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨免疫学の新展開2019

    • Author(s)
      塚崎雅之
    • Organizer
      第61回歯科基礎医学会 学会奨励賞受賞講演
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 歯周炎における骨免疫連関と生体防御2019

    • Author(s)
      塚崎雅之
    • Organizer
      第14回日本歯周病学会中部地区大学・日本臨床歯周病学会中部支部合同研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨外膜間葉系前駆細胞の機能に必須の遺伝子Hmtfの同定2019

    • Author(s)
      塚崎雅之
    • Organizer
      第4回Skeletal Science Retreat
    • Related Report
      2019 Research-status Report
  • [Presentation] 骨免疫学が紐解く歯槽骨代謝の分子基盤2019

    • Author(s)
      塚崎雅之
    • Organizer
      第78回日本矯正歯科学会学術大会 サテライトセミナー
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 骨免疫学から考える歯の萌出後の「力」と骨代謝2019

    • Author(s)
      塚崎雅之
    • Organizer
      Dentistry, Quo Vadis?
    • Related Report
      2019 Research-status Report
    • Invited
  • [Remarks] シングルセル解析による破骨細胞運命決定機構の解明

    • URL

      http://www.jsbmr.jp/1st_author/437_mtsukazaki.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] OPG産生は、それが起こった場所で重要

    • URL

      http://www.jsbmr.jp/1st_author/435_mtsukazaki.html

    • Related Report
      2020 Annual Research Report

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Published: 2019-04-18   Modified: 2022-01-27  

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