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Study on the actions of phosphate as a first messenger

Research Project

Project/Area Number 19H03676
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 53040:Nephrology-related
Research InstitutionThe University of Tokushima

Principal Investigator

FUKUMOTO Seiji  徳島大学, 先端酵素学研究所, 特任教授 (30202287)

Co-Investigator(Kenkyū-buntansha) 沢津橋 俊  徳島大学, 先端酵素学研究所, 特任准教授 (70535103)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywordsリン / 線維芽細胞増殖因子23 / 線維芽細胞増殖因子受容体 / 繊維芽細胞増殖因子受容体
Outline of Research at the Start

我々は、世界に先駆けて血中リン能度の上昇がFGF受容体1cの活性化を介し、リン利尿ホルモンであるFGF23の産生を促進することを見いだした。そこで本研究では、リンによるFGF受容体1cの活性化機構を解明するとともに、FGF受容体1cの活性化が、リンにより惹起される血管平滑筋細胞の分化やPTH分泌促進、軟骨細胞アポトーシスの誘導にも関与しているかどうかを明らかにする。

Outline of Final Research Achievements

Fibroblast growth factor 23 (FGF23) is a hormone that is produced by bone and essential for the regulation of serum phosphate level. Excessive and deficient actions of FGF23 result in hypophosphatemia rickets/osteomalacia and hyperphosphatemic tumoral calcinosis, respectively, indicating that there must be a regulatory system to maintain serum phosphate and FGF23 levels in our body. We have revealed that FGF receptor 1 in bone works as a phosphate-sensing mechanism to regulate FGF23 production by analyzing the controlling system of FGF23 production. In addition, this phosphate-sensing by FGF receptor 1 in bone was essential for maintaining normal life span.

Academic Significance and Societal Importance of the Research Achievements

血中電解質濃度が一定の範囲に調節されていることは、生命の維持に必須である。血中カルシウム濃度の感知機構としてカルシウム感知受容体が同定されたことにより、その後シナカルセト、エボカルセト、エテルカルセチドなどのカルシウム感知受容体作動薬が臨床応用され、カルシウム代謝異常症患者のよりよい管理に貢献した。本研究によるリン感知機構の同定は、リン濃度の上昇がFGF受容体1を介して、リン濃度低下作用を有するFGF23産生を促進するというネガティブフィードバック機構の存在を明らかにしたのみならず、今後リン代謝異常症に対する新たなアプローチに繋がる可能性がある。

Report

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

    (6 results)

All 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 3 results)

  • [Journal Article] Phosphate-Sensing2022

    • Author(s)
      Takashi Yuichi、Fukumoto Seiji
    • Journal Title

      Advances in Experimental Medicine and Biology

      Volume: 1362 Pages: 27-35

    • DOI

      10.1007/978-3-030-91623-7_4

    • ISBN
      9783030916213, 9783030916237
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Skeletal FGFR1 signaling is necessary for regulation of serum phosphate level by FGF23 and normal life span2021

    • Author(s)
      Takashi Yuichi、Sawatsubashi Shun、Endo Itsuro、Ohnishi Yukiyo、Abe Masahiro、Matsuhisa Munehide、Kawanami Daiji、Matsumoto Toshio、Fukumoto Seiji
    • Journal Title

      Biochemistry and Biophysics Reports

      Volume: 27 Pages: 101107-101107

    • DOI

      10.1016/j.bbrep.2021.101107

    • NAID

      120007146085

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] FGF23 and Hypophosphatemic Rickets/Osteomalacia2021

    • Author(s)
      Takashi Yuichi、Kawanami Daiji、Fukumoto Seiji
    • Journal Title

      Current Osteoporosis Reports

      Volume: 19 Issue: 6 Pages: 669-675

    • DOI

      10.1007/s11914-021-00709-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fibroblast growth factor receptor as a potential candidate for phosphate sensing2020

    • Author(s)
      Takashi Yuichi、Fukumoto Seiji
    • Journal Title

      Current Opinion in Nephrology & Hypertension

      Volume: 29 Issue: 4 Pages: 446-452

    • DOI

      10.1097/mnh.0000000000000618

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phosphate-sensing and regulatory mechanism of FGF23 production2020

    • Author(s)
      Takashi Y.、Fukumoto S.
    • Journal Title

      Journal of Endocrinological Investigation

      Volume: - Issue: 7 Pages: 877-883

    • DOI

      10.1007/s40618-020-01205-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] How do we sense phosphate to regulate serum phosphate level?2020

    • Author(s)
      Seiji Fukumoto, Yuichi Takashi, Maria Tsoumpra, Shun Sawatsubashi, Toshio Matsumoto
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: 38 Issue: 1 Pages: 1-6

    • DOI

      10.1007/s00774-019-01066-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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

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