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Phorbol 12‑myristate 13‑acetate (PMA) suppresses high Ca2+‑enhanced adipogenesis in bone marrow stromal cells

Research Project

Project/Area Number 16K01836
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied health science
Research InstitutionJuntendo University

Principal Investigator

Katoh Youichi  順天堂大学, 医学部, 教授 (00231259)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords骨髄脂肪変性 / 動脈硬化 / 再生血管 / カルシウムイオン / 骨髄間質細胞 / 間葉系幹細胞 / 骨髄幹細胞 / 脂肪細胞 / 分化 / 幹細胞 / マクロファージ / 細胞内カルシウム / 細胞内Ca濃度 / cyclic AMP / リポポリサッカライド / CD204, CD36 / 平滑筋前駆細胞 / T型Caチャネル阻害薬 / 循環器・高血圧 / 移植・再生医療 / 老化 / 再生医学
Outline of Final Research Achievements

We have previously reported that increased extracellular and intracellular Ca2+ ([Ca2+]o & [Ca2+]i) lead to adipocyte accumulation in bone marrow stromal cells (BMSCs). In the present study, we examined the effects of the diacylglycerol analog phorbol 12-myristate 13-acetate (PMA) on proliferation and adipogenesis of mouse primary BMSCs. PMA suppressed the expression of both C/EBPα and PPARγ under normal adipogenesis, adipogenesis + CaCl2, and adipogenesis + ionomycin conditions. PMA enhanced proliferation under normal adipogenesis conditions but suppressed proliferation under adipogenesis + CaCl2 and adipogenesis + ionomycin conditions. PMA did not affect the accumulation of adipocytes under normal adipogenesis conditions but suppressed adipocyte accumulation under adipogenesis + CaCl2 and adipogenesis + ionomycin conditions. These results suggest that the PMA-dependent pathway is an important signaling pathway to suppress high Ca2+-enhanced adipocyte accumulation.

Academic Significance and Societal Importance of the Research Achievements

骨髄脂肪化は特に高齢者の骨折や貧血の一因であり、治療標的として注目されている。本研究では、高濃度の細胞外カルシウム ([Ca2+]o)が特異的に骨髄脂肪化をもたらすメカニズムの同定を試みた。プロテインキナーゼC(PKC)を介したシグナル伝達経路が骨髄脂肪化に重要であることを突きとめ、PKC の活性化薬であるホルボールエステルPMAがCaイオンの骨髄脂肪化促進作用を抑制することを報告した (Hashimoto-R, Katoh-Y et al. J Physiol Sci 69: 741-748, 2019)。PKC の活性化薬が、高齢者の病的骨折減少への新たな治療戦略として期待される。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2020 2019 2018 2017

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results)

  • [Journal Article] JAK-STAT-dependent regulation of scavenger receptors in LPS-activated murine macrophages2020

    • Author(s)
      Hashimoto Ryota、Kakigi Ryo、Miyamoto Yuki、Nakamura Kyoko、Itoh Seigo、Daida Hiroyuki、Okada Takao、Katoh Youichi
    • Journal Title

      European Journal of Pharmacology

      Volume: 871 Pages: 172940-172940

    • DOI

      10.1016/j.ejphar.2020.172940

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phorbol 12-myristate 13-acetate (PMA) suppresses high Ca2+-enhanced adipogenesis in bone marrow stromal cells2019

    • Author(s)
      Hashimoto Ryota、Miyamoto Yuki、Itoh Seigo、Daida Hiroyuki、Okada Takao、Katoh Youichi
    • Journal Title

      The Journal of Physiological Sciences

      Volume: 69 Issue: 5 Pages: 741-748

    • DOI

      10.1007/s12576-019-00690-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A simple method to increase the proportion of bonemarrow-derived macrophages positive for M-CSFR using the reducing agent dithiothreitol (DTT)2018

    • Author(s)
      Hashimoto-R, Daida-H, Okada-T, Katoh-Y
    • Journal Title

      Methods X

      Volume: 5 Pages: 1540-1548

    • DOI

      10.1016/j.mex.2018.11.014

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] LPS enhances expression of CD204 through the MAPK/ERK pathway in murine bone marrow macrophages.2017

    • Author(s)
      Hashimoto R, Kakigi R, Nakamura K, Itoh S, Daida H, Okada T, Katoh Y.
    • Journal Title

      Atherosclerosis

      Volume: 266 Pages: 167-175

    • DOI

      10.1016/j.atherosclerosis.2017.10.005

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] High extracellular Ca2+ enhances the adipocyte accumulation of bone marrow stromal cells through a decrease in cAMP.2017

    • Author(s)
      Hashimoto R, Katoh Y, Miyamoto Y, Nakamura K, Itoh S, Daida H, Nakazato Y, Okada T.
    • Journal Title

      Cell Calcium

      Volume: 67 Pages: 74-80

    • DOI

      10.1016/j.ceca.2017.08.006

    • Related Report
      2017 Research-status Report
    • Peer Reviewed

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

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