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Pathogenic mechanism underlying cortical porosity via regulation of bone mineralization by the osteocytic network

Research Project

Project/Area Number 22K09911
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57010:Oral biological science-related
Research InstitutionHokkaido University

Principal Investigator

Hasegawa Tomoka  北海道大学, 歯学研究院, 准教授 (50739349)

Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords皮質骨多孔化 / 骨細胞 / 二次性副甲状腺機能亢進症 / 骨細胞性骨溶解 / 破骨細胞 / 血管 / Phex/SIBLING family
Outline of Research at the Start

二次性副甲状腺機能亢進症モデル動物(5/6腎臓摘出ラット)における骨細胞ネットワークの石灰化抑制および骨細胞性骨溶解誘導と、カルシウム受容体作動薬投与によるミネラル沈着・石灰化骨基質成熟化の機序解明を目的として、溶媒またはカルシウム受容体作動薬を投与した5/6腎臓摘出ラットを作成し、血清ミネラル濃度などの血清パラメーター、電顕解析などの微細構造解析を含む骨組織解析、シングルセルRNA-seq解析等を行うとともに、培養骨細胞株によるin vitro実験を遂行する。

Outline of Final Research Achievements

In this study, we conducted in vivo and in vitro analyses to elucidate the pathogenic mechanism underlying cortical porosity in secondary hyperparathyroidism associated with chronic kidney disease (CKD-SHPT). Our findings revealed that in CKD-SHPT model rats, elevated serum levels of parathyroid hormone (PTH) and inorganic phosphate (Pi) induced osteocytic osteolysis, inhibition of bone mineralization in osteocytic lacunae, and osteocyte death. These osteocytic abnormalities led to the enlargement of osteocyte lacunae, which were subsequently invaded by osteoclasts and blood vessels, thereby promoting cortical porosity. Furthermore, calcimimetics suppressed osteocytic abnormalities by reducing serum PTH levels, suggesting its potential to inhibit the progression of cortical porosity.

Academic Significance and Societal Importance of the Research Achievements

慢性腎臓病に伴う二次性副甲状腺機能亢進症における皮質骨多孔化は、PTHによる高骨代謝回転のみで考えられてきた。本研究は、皮質骨多孔化が血中PTHおよびPi濃度の上昇による骨細胞異常に起因することをモデル動物レベルで明らかにするとともに、カルシウム受容体作動薬が皮質骨多孔化の改善に寄与することを見出した。これらの研究成果は、基礎的な骨代謝学の理解のみならず、同疾患の治療法や予防法の開発にもつながると考えられ、高い学術的・社会的意義を有すると思われる。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (32 results)

All 2025 2024 2023 2022 Other

All Journal Article (17 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 17 results,  Open Access: 10 results) Presentation (14 results) (of which Invited: 8 results) Remarks (1 results)

  • [Journal Article] Histochemical assessment of the femora of spontaneously diabetic torii-lepr (SDT-fa/fa) rats that mimic type II diabetes2025

    • Author(s)
      Yao Qi、Tsuboi Kanako、Hongo Hiromi、Sakakibara Mako、Yamamoto Tomomaya、Haraguchi-Kitakamae Mai、Ishizu Hotaka、Liu Xuanyu、Shi Yan、Li Weisong、Cui Jiaxin、Shimizu Tomohiro、Amizuka Norio、Yokoyama Atsuro、Hasegawa Tomoka、Sakaguchi Kiwamu
    • Journal Title

      Journal of Oral Biosciences

      Volume: 67 Issue: 1 Pages: 100602-100602

    • DOI

      10.1016/j.job.2024.100602

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Histochemical analysis of osteoclast and osteoblast distributions on hydroxyapatite/collagen bone-like nanocomposite embedded in rat tibiae2025

    • Author(s)
      Sakakibara Mako、Hasegawa Tomoka、Haraguchi-Kitakamae Mai、Shi Yan、Li Weisong、Cui Jiaxin、Liu Xuanyu、Yamamoto Tomomaya、Hongo Hiromi、Amizuka Norio、Sato Yoshiaki、Kikuchi Masanori
    • Journal Title

      Journal of Oral Biosciences

      Volume: 67 Issue: 1 Pages: 100612-100612

    • DOI

      10.1016/j.job.2025.100612

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Alendronate inhibits bone-specific blood vessels in the femoral metaphyses of mice2025

    • Author(s)
      Hasegawa Tomoka、Sakakibara Mako、Liu Xuanyu、Yoshino Hirona、Shi Yan、Cui Jiaxin、Haraguchi-Kitakamae Mai、Li Weisong、Haoyu Wang、Yamamoto Tomomaya、Ishizu Hotaka、Sekiguchi Tamaki、Shimizu Tomohiro、Amizuka Norio
    • Journal Title

      Journal of Oral Biosciences

      Volume: 67 Issue: 2 Pages: 100655-100655

    • DOI

      10.1016/j.job.2025.100655

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Immunohistochemical and Morphometric Assessment on the Biological Function and Vascular Endothelial Cells in the Initial Process of Cortical Porosity in Mice With PTH Administration2024

    • Author(s)
      Abe Miki、Hasegawa Tomoka、Hongo Hiromi、Yamamoto Tomomaya、Shi Yan、Cui Jiaxin、Liu Xuanyu、Yao Qi、Ishizu Hotaka、Maruoka Haruhi、Yoshino Hirona、Haraguchi-Kitakamae Mai、Shimizu Tomohiro、Amizuka Norio
    • Journal Title

      Journal of Histochemistry & Cytochemistry

      Volume: 72 Issue: 5 Pages: 309-327

    • DOI

      10.1369/00221554241247883

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Eldecalcitol Induces Minimodeling-Based Bone Formation and Inhibits Sclerostin Synthesis Preferentially in the Epiphyses Rather than the Metaphyses of the Long Bones in Rats2024

    • Author(s)
      Hasegawa Tomoka、Yamamoto Tomomaya、Hongo Hiromi、Yamamoto Tsuneyuki、Haraguchi-Kitakamae Mai、Ishizu Hotaka、Shimizu Tomohiro、Saito Hitoshi、Sakai Sadaoki、Yogo Kenji、Matsumoto Yoshihiro、Amizuka Norio
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 25 Issue: 8 Pages: 4257-4257

    • DOI

      10.3390/ijms25084257

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Regional difference in the distribution of alkaline phosphatase, PHOSPHO1, and calcein labeling in the femoral metaphyseal trabeculae in parathyroid hormone-administered mice2024

    • Author(s)
      Haraguchi-Kitakamae Mai、Nakajima Yuhi、Yamamoto Tomomaya、Hongo Hiromi、Cui Jiaxin、Shi Yan、Liu Xuanyu、Yao Qi、Maruoka Haruhi、Abe Miki、Sekiguchi Tamaki、Yokoyama Ayako、Amizuka Norio、Sasano Yasuyuki、Hasegawa Tomoka
    • Journal Title

      Journal of Oral Biosciences

      Volume: 66 Issue: 3 Pages: 554-566

    • DOI

      10.1016/j.job.2024.06.007

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Histological assessments for anabolic effects in teriparatide/abaloparatide administered rodent models2024

    • Author(s)
      Hasegawa Tomoka、Yamamoto Tomomaya、Haraguchi-Kitakamae Mai、Hongo Hiromi、Shi Yan、Cui Jiaxin、Liu Xuanyu、Yao Qi、Abe Miki、Maruoka Haruhi、Yokoyama Ayako、Sekiguchi Tamaki、Makino Akito、Amizuka Norio
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: 43 Issue: 1 Pages: 46-56

    • DOI

      10.1007/s00774-024-01562-y

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 骨の石灰化における形態学2024

    • Author(s)
      長谷川智香、石 硯、李 偉松、王 昊昱、網塚憲生
    • Journal Title

      日本骨形態計測学会雑誌 第44回日本骨形態計測学会特集号

      Volume: 34(2) Pages: 18-19

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Histochemical assessment on osteoclasts in long bones of toll-like receptor 2 (TLR2) deficient mice2023

    • Author(s)
      Muneyama Takafumi、Hasegawa Tomoka、Yimin、Yamamoto Tomomaya、Hongo Hiromi、Haraguchi-Kitakamae Mai、Abe Miki、Maruoka Haruhi、Ishizu Hotaka、Shimizu Tomohiro、Sasano Yasuyuki、Li Minqi、Amizuka Norio
    • Journal Title

      Journal of Oral Biosciences

      Volume: 65 Issue: 2 Pages: 163-174

    • DOI

      10.1016/j.job.2023.04.002

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Histochemical assessment of osteoclast-like giant cells in Rankl-/- mice2023

    • Author(s)
      Miyamoto Yukina、Hasegawa Tomoka、Hongo Hiromi、Yamamoto Tomomaya、Haraguchi-Kitakamae Mai、Abe Miki、Maruoka Haruhi、Ishizu Hotaka、Shimizu Tomohiro、Sasano Yasuyuki、Udagawa Nobuyuki、Li Minqi、Amizuka Norio
    • Journal Title

      Journal of Oral Biosciences

      Volume: 65 Issue: 2 Pages: 175-185

    • DOI

      10.1016/j.job.2023.04.003

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immunolocalization of Enzymes/Membrane Transporters Related to Bone Mineralization in the Metaphyses of the Long Bones of Parathyroid-Hormone-Administered Mice2023

    • Author(s)
      Mae Takahito、Hasegawa Tomoka、Hongo Hiromi、Yamamoto Tomomaya、Zhao Shen、Li Minqi、Yamazaki Yutaka、Amizuka Norio
    • Journal Title

      Medicina

      Volume: 59 Issue: 6 Pages: 1179-1179

    • DOI

      10.3390/medicina59061179

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Differential osteoblastic activity in primary metaphyseal trabecular and secondary trabeculae of c-fos deficient mice2023

    • Author(s)
      Yamamoto Tomomaya、Abe Miki、Hongo Hiromi、Maruoka Haruhi、Yoshino Hirona、Haraguchi-Kitakamae Mai、Udagawa Nobuyuki、Li Minqi、Amizuka Norio、Hasegawa Tomoka
    • Journal Title

      Journal of Oral Biosciences

      Volume: 65 Issue: 4 Pages: 265-272

    • DOI

      10.1016/j.job.2023.08.002

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evocalcet Rescues Secondary Hyperparathyroidism-driven Cortical Porosity in CKD Male Rats2023

    • Author(s)
      Hasegawa Tomoka、Tokunaga Shin、Yamamoto Tomomaya、Sakai Mariko、Hongo Hiromi、Kawata Takehisa、Amizuka Norio
    • Journal Title

      Endocrinology

      Volume: 164 Issue: 4 Pages: 1-17

    • DOI

      10.1210/endocr/bqad022

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Histological assessment of endochondral ossification and bone mineralization.2023

    • Author(s)
      Hasegawa Tomoka、Hongo Hiromi、Yamamoto Tomomaya、Muneyama Takafumi、Miyamoto Yukina、Amizuka Norio
    • Journal Title

      Endocrines

      Volume: 4 Issue: 1 Pages: 66-81

    • DOI

      10.3390/endocrines4010006

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [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
  • [Journal Article] Matrix Vesicle-Mediated Mineralization and Osteocytic Regulation of Bone Mineralization2022

    • Author(s)
      Hasegawa Tomoka、Hongo Hiromi、Yamamoto Tomomaya、Abe Miki、Yoshino Hirona、Haraguchi-Kitakamae Mai、Ishizu Hotaka、Shimizu Tomohiro、Iwasaki Norimasa、Amizuka Norio
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Issue: 17 Pages: 9941-9941

    • DOI

      10.3390/ijms23179941

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 慢性腎不全における骨病態の顕微学的検索2025

    • Author(s)
      長谷川智香、網塚憲生
    • Organizer
      第9回CKD-MBD学会学術集会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 骨の石灰化における形態学2024

    • Author(s)
      網塚憲生、本郷裕美、長谷川智香
    • Organizer
      第44回日本骨形態計測学会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 形態学的手法を中心とした骨代謝研究 ~副甲状腺ホルモン投与モデル動物の解析から~2024

    • Author(s)
      長谷川智香、本郷裕美、丸岡春日、網塚憲生
    • Organizer
      第44回日本骨形態計測学会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 骨基質石灰化のメカニズム-微細構造学的知見から-2024

    • Author(s)
      長谷川智香、網塚憲生
    • Organizer
      第42回日本骨代謝学会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 骨組織微細構造学研究の現在と将来展望2024

    • Author(s)
      長谷川智香
    • Organizer
      第66回歯科基礎医学会学術大会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 慢性腎不全に伴う骨・血管石灰化異常2024

    • Author(s)
      長谷川智香、網塚憲生
    • Organizer
      第66回歯科基礎医学会学術大会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] PTH投与によるGli1発現未分化間葉系細胞の細胞分化と骨組織内分布2024

    • Author(s)
      長谷川智香、丸岡春日、山本知真也、石津帆高、阿部未来、原口-北構真衣、溝口利英、細矢明宏、網塚憲生
    • Organizer
      第44回日本骨形態計測学会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 副甲状腺ホルモン(PTH)投与および授乳期カルシウム欠乏食給餌によって誘導される骨細胞性骨溶解の微細構造学的解析2024

    • Author(s)
      本郷裕美、関口珠希、横山亜矢子、丸岡春日、石 硯、崔 佳昕、長谷川智香、網塚憲生
    • Organizer
      第9回日本骨免疫学会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 血管石灰化・骨化におけるPTHの影響2024

    • Author(s)
      長谷川智香、丸岡春日、山本知真也、崔 佳昕、石 硯、原口-北構真衣、本郷裕美、網塚憲生
    • Organizer
      第42回日本骨代謝学会学術集会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 骨の細胞群に対するPTH作用~動物モデルを用いた形態学的知見を中心に~.2023

    • Author(s)
      長谷川智香
    • Organizer
      第43回日本骨形態計測学会
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] 骨細胞ネットワークによる骨質維持2023

    • Author(s)
      長谷川智香、網塚憲生
    • Organizer
      第41回日本骨代謝学会学術集会
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] TH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 Research-status Report
  • [Presentation] エボカルセトは骨細胞異常で誘導される皮質骨多孔化を抑制する: 二次性副甲状腺機能亢進症の皮質骨多孔化はPTH-Piループで誘導される骨細胞性骨溶解と骨小腔石灰化抑制により発症する - エボカルセトによる皮質骨多孔化抑制の検討.2022

    • Author(s)
      長谷川智香、徳永 紳、山本知真也、本郷裕美、酒井まり子、網塚憲生
    • Organizer
      第40回日本骨代謝学会
    • Related Report
      2022 Research-status Report
  • [Presentation] エボカルセトは骨細胞異常で誘導される皮質骨多孔化を抑制する: 二次性副甲状腺機能亢進症を伴う慢性腎臓病モデルラットを用いた動物実験.2022

    • Author(s)
      長谷川智香、徳永 紳、山本知真也、本郷裕美、酒井まり子、川田剛央、網塚憲生
    • Organizer
      第24回日本骨粗鬆症学会
    • Related Report
      2022 Research-status Report
  • [Remarks] 二次性副甲状腺機能亢進症治療薬が骨の構造と強度を改善~慢性腎不全動物モデルを用いた検証で明らかに~.

    • URL

      https://www.hokudai.ac.jp/news/2023/03/post-1198.html

    • Related Report
      2022 Research-status Report

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Published: 2022-04-19   Modified: 2026-01-16  

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