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The mechanism of increased FGF23 levels in primary hyoperparathyroidism

Research Project

Project/Area Number 19K08683
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53040:Nephrology-related
Research InstitutionOsaka City University

Principal Investigator

Yasuo Imanishi  大阪市立大学, 大学院医学研究科, 准教授 (50326253)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsFGF23 / リン / PTH / SOST / DMP1 / 原発性副甲状腺機能亢進症 / 副甲状腺 / DMP-1 / スクレロスチン / FGF-23
Outline of Research at the Start

原発性副甲状腺機能亢進症(PHPT)は、副甲状腺ホルモン(PTH)過剰によるリン利尿亢進のため、低リン血症を呈する。一方、リン利尿ホルモンである線維芽細胞増殖因子(FGF)23も上昇しており、さらなるリン利尿に寄与していると考えられる。FGF23は骨組織より分泌されるホルモンであり、PTHが直接骨組織におけるFGF23分泌を亢進することが想定されているものの、その詳細な機序は明らかではない。本研究では、骨組織におけるPTH依存性FGF23分泌機構を、in vivo、in vitroの系を用いて明らかにする。

Outline of Final Research Achievements

Fibroblast growth factor 23 (FGF23) secretion is facilitated by the PTH, particularly in hyperparathyroidism. The PTH also attenuates dentin matrix protein 1 (DMP1), which is produced by osteocytes to contribute to bone mineralization and suppress FGF23 expression. The continuous activation of PKA signaling in osteoblasts/osteocytes by sustained PTH can alter gene expression, increase FGF23 expression, and suppress DMP1 expression. In addition, we examined the relationship between FGF23 and sclerostin in PHPT using a mouse model of PHPT and UMR106 mature osteoblast cell line, and found that in PHPT the excessive secretion of PTH leads to increased FGF23 and decreased sclerostin expression in serum and calvaria.

Academic Significance and Societal Importance of the Research Achievements

原発性副甲状腺機能亢進症(PHPT)における低リン血症の発症機序に、PTHとともにFGF23上昇が寄与しているが、このFGF23上昇機序に骨組織におけるDMP1とSOSTが関与することを示した。本研究によりFGF23分泌調節機構の少なくとも一部が解明された。持続的なリン負荷や高リン血症が、腎機能低下や血管石灰化に関与することが知られており、これらの状態は生命予後悪化の一因となることが知られてる。本研究はFGF23分泌調節機構の解明により、リン負荷や高リン血症の是正における基礎医学的な解決法を示唆するものである。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (12 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (4 results) (of which Invited: 4 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] コネチカット州立大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Role of adiponectin in the relationship between visceral adiposity and fibroblast growth factor 23 in non-diabetic men with normal kidney function2022

    • Author(s)
      Natsuki Yuka、Morioka Tomoaki、Fukumoto Shinya、Kakutani Yoshinori、Yamazaki Yuko、Ochi Akinobu、Kurajoh Masafumi、Mori Katsuhito、Shoji Tetsuo、Imanishi Yasuo、Inaba Masaaki、Emoto Masanori
    • Journal Title

      Endocrine Journal

      Volume: 69 Issue: 2 Pages: 121-129

    • DOI

      10.1507/endocrj.EJ21-0185

    • NAID

      130008164734

    • ISSN
      0918-8959, 1348-4540
    • Related Report
      2021 Annual Research Report
  • [Journal Article] Parathyroid Hormone Regulates Circulating Levels of Sclerostin and FGF23 in a Primary Hyperparathyroidism Model2022

    • Author(s)
      Nagata Yuki、Imanishi Yasuo、Tateishi Tomomi、Miyaoka Daichi、Kurajoh Masafumi、Arnold Andrew、Emoto Masanori
    • Journal Title

      Journal of the Endocrine Society

      Volume: 6 Issue: 4

    • DOI

      10.1210/jendso/bvac027

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Altered immunolocalization of FGF23 in murine femora metastasized with human breast carcinoma MDA-MB-231 cells.2021

    • Author(s)
      Yokoyama A., Hasegawa T., Hiraga T., Yamada T., Yimin, Hongo H., Yamamoto T., Abe M., Yoshida T., Imanishi Y., Kuroshima S., Sasaki M., Freitas PHL., Li M., Amizuka N., Yamazaki Y.
    • Journal Title

      J Bone Miner Metab.

      Volume: 印刷中 Issue: 5 Pages: 810-823

    • DOI

      10.1007/s00774-021-01220-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of fetuin-A-containing calciprotein particles on posttranslational modifications of fetuin-A in HepG2 cells2021

    • Author(s)
      Uedono Hideki、Mori Katsuhito、Ochi Akinobu、Nakatani Shinya、Miki Yuya、Tsuda Akihiro、Morioka Tomoaki、Nagata Yuki、Imanishi Yasuo、Shoji Tetsuo、Inaba Masaaki、Emoto Masanori
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 7486-7486

    • DOI

      10.1038/s41598-021-86881-0

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Uric acid shown to contribute to increased oxidative stress level independent of xanthine oxidoreductase activity in MedCity21 health examination registry2021

    • Author(s)
      Kurajoh Masafumi、Fukumoto Shinya、Yoshida Shio、Akari Seigo、Murase Takayo、Nakamura Takashi、Ishii Haruka、Yoshida Hisako、Nagata Yuki、Morioka Tomoaki、Mori Katsuhito、Imanishi Yasuo、Hirata Kazuto、Emoto Masanori
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1

    • DOI

      10.1038/s41598-021-86962-0

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Interim Analysis of a Phase 2 Open-Label Trial Assessing Burosumab Efficacy and Safety in Patients With Tumor-Induced Osteomalacia2021

    • Author(s)
      Imanishi, Y. Ito, N. Rhee, Y. Takeuchi, Y. Shin, C. S. Takahashi, Y. Onuma, H. Kojima, M. Kanematsu, M. Kanda, H. Seino, Y. Fukumoto, S.
    • Journal Title

      J Bone Miner Res

      Volume: 36 Issue: 2 Pages: 262-270

    • DOI

      10.1002/jbmr.4184

    • NAID

      120007170556

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Etelcalcetide decreases the PTH?calcium setpoint without changing maximum and minimum PTH secretion in mice with primary hyperparathyroidism2021

    • Author(s)
      Hayashi Noriyuki、Imanishi Yasuo、Hirakawa Tomoe、Kobayashi Ikue、Tateishi Tomomi、Miyaoka Daichi、Nagata Yuki、Mori Katsuhito、Morioka Tomoaki、Inoue Atsuto、Harada Kazutsune、Inaba Masaaki、Emoto Masanori
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: 39 Issue: 3 Pages: 430-438

    • DOI

      10.1007/s00774-020-01169-z

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Effect of etelcalcetide on parathyroid hormone secretion by primary hyperparathyroidism patient-derived primary parathyroid cells2021

    • Author(s)
      Fujioka Aiko、Imanishi Yasuo、Kobayashi Ikue、Hirakawa Tomoe、Inoue Atsuto、Harada Kazutsune、Taguchi Mikiyasu、Sugiura Yoshihiro、Yamada Hiroyuki、Miyaoka Daichi、Hayashi Noriyuki、Emoto Masanori、Inaba Masaaki
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: 39 Issue: 3 Pages: 396-403

    • DOI

      10.1007/s00774-020-01158-2

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Burosumab treatment in adults with X-linked hypophosphataemia: 96-week patient-reported outcomes and ambulatory function from a randomised phase 3 trial and open-label extension2021

    • Author(s)
      Briot Karine、Portale Anthony A、Brandi Maria Luisa、et al
    • Journal Title

      RMD Open

      Volume: 7 Issue: 3 Pages: e001714-e001714

    • DOI

      10.1136/rmdopen-2021-001714

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Plasma xanthine oxidoreductase activity change over 12 months independently associated with change in serum uric acid level: MedCity21 health examination registry.2020

    • Author(s)
      Kurajoh M, Fukumoto S, Murase T, Nakamura T, Ishihara T, Go H, Yamamoto K, Nakatani S, Tsuda A, Morioka T, Mori K, Imanishi Y, Inaba M and Emoto M.
    • Journal Title

      Clin Chem Lab Med

      Volume: in press Issue: 4 Pages: e137-e140

    • DOI

      10.1515/cclm-2020-0563

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of denosumab as compared with parathyroidectomy regarding calcium, renal, and bone involvement in osteoporotic patients with primary hyperparathyroidism2020

    • Author(s)
      Miyaoka Daichi、Imanishi Yasuo、Kato Eiko、Toi Norikazu、Nagata Yuki、Kurajoh Masafumi、Yamada Shinsuke、Inaba Masaaki、Emoto Masanori
    • Journal Title

      Endocrine

      Volume: 69 Issue: 3 Pages: 642-649

    • DOI

      10.1007/s12020-020-02401-6

    • NAID

      120007140303

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2019821

    • Related Report
      2020 Research-status Report
  • [Journal Article] Evocalcet in patients with primary hyperparathyroidism: an open-label, single-arm, multicenter, 52-week, dose-titration phase III study2020

    • Author(s)
      Takeuchi Yasuhiro、Nishida Yuichi、Kondo Yuichiro、Imanishi Yasuo、Fukumoto Seiji
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: 38 Issue: 5 Pages: 687-694

    • DOI

      10.1007/s00774-020-01097-y

    • Related Report
      2020 Research-status Report
  • [Presentation] FGF23関連低リン血症性疾患の治療2021

    • Author(s)
      今西康雄
    • Organizer
      第39回日本骨代謝学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] カルシウム感知受容体(CaSR)と骨ミネラル代謝異常2020

    • Author(s)
      今西康雄
    • Organizer
      第38回日本骨代謝学会学術集会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 日本人にとってのPTH の最適値とその根拠は?2020

    • Author(s)
      今西康雄
    • Organizer
      第65回日本透析医学会学術集会・総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Hypovitaminosis D and secondary hyperparathyroidism in CKD Patients2020

    • Author(s)
      今西康雄
    • Organizer
      第65回日本透析医学会学術集会・総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Patent(Industrial Property Rights)] X染色体優性遺伝疾患におけるシグナル伝達解析法2022

    • Inventor(s)
      今西康雄
    • Industrial Property Rights Holder
      今西康雄
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-053936
    • Filing Date
      2022
    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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