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Development of novel therapeutic agent for pachydermoperiostosis (PDP) using iPS cells derived from patients with PDP

Research Project

Project/Area Number 20K08649
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53050:Dermatology-related
Research InstitutionKyoto University

Principal Investigator

Nomura Takashi  京都大学, 医学研究科, 特定准教授 (60346054)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordspachydermoperiostosis / prostaglandin / SLCO2A1 / iPSC / 肥厚性皮膚骨膜症 / プロスタグランディン / iPS細胞 / PGDH / 遺伝子異常 / 人工多能性幹細胞 / プロスタグランジン / リードスルー誘導薬
Outline of Research at the Start

本研究ではSLCO2A1型肥厚性皮膚骨膜症(pachydermoperiostosis, PDP)の新規治療法を探索する。SLCO2A1はプロスタグランジン(PG)E2の輸送タンパクをコードする遺伝子で、PDPの原因遺伝子とされる。PDP患者由来人工多能性幹細胞(PDP-iPSC)を作出し、各種SLCO2A1突然変異体のPGE2輸送機能を改善する化合物を探索し、創薬基礎研究を展開する。

Outline of Final Research Achievements

Pachydermoperiostosis (PDP) is a genetic disorder characterized by clubbed fingers, periosteal thickening (periostosis), and skin thickening (pachyderma). The cause is thought to be PGE2 excess caused by the deficiency of PGDH or SLOCO2A ; COX inhibitors relieve symptoms. However, SLCO2A1 deficiency often precludes the use of COX inhibitors because of concomitant gastrointestinal symptoms. In this study, we focused on SLCO2A1-type PDP and aimed to identify therapeutic agents other than COX inhibitors. SLCO2A1-deficient cells are useful for this purpose. In this study, we established at least one cell-line of iPS cells derived from a patient with complete PDP. This made it possible to analyze the function of SLCO2A1 and the effects of its deficiency in vitro.

Academic Significance and Societal Importance of the Research Achievements

肥厚性皮膚骨膜症(PDP)は、ばち指、骨膜肥厚、皮膚肥厚、骨髄線維症等の多彩な症状を呈する。これらの症状はPDPに限らず肺疾患や、特に原因のない患者でも見られることがある。本研究成果は、これらの特発性疾患の原因解明につながる可能性があり、学術的意義が大きい。また本研究は、高熱、全身倦怠感、皮膚肥厚による機能的整容的障害、骨膜肥厚による関節痛や運動制限、熱中症等々、PDP患者の生活上の制限を改善することにつながることから、社会的経済的意義も大きいと考える。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (4 results)

All 2024 2021

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Lack of cutis verticis gyrata is associated with c.1279_1290del12 of SLCO2A1 in 43 Japanese patients with pachydermoperiostosis2024

    • Author(s)
      Niizeki H、Tanaka R、Nomura T、Seki A、Miyasaka M、Matsumoto Y、Ishibashi M、Narumi S、Nakabayashi K、Yoshida K
    • Journal Title

      Journal of Dermatological Science

      Volume: TBD Issue: 2 Pages: 86-88

    • DOI

      10.1016/j.jdermsci.2024.03.008

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Eicosanoid profiling in patients with complete form of pachydermoperiostosis carrying SLCO2A1 mutations.2021

    • Author(s)
      Oiwa T., Ishibashi M., Okuno T., Ohba M., Endo Y., Uozumi R., Ghazawi F.M., Yoshida K., Niizeki H., Yokomizo T., Nomura T., Kabashima K.
    • Journal Title

      Journal of Dermatology

      Volume: 48(9) Issue: 9 Pages: 1442-1446

    • DOI

      10.1111/1346-8138.16012

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of Prostaglandin E-Major Urinary Metabolite Levels in Identifying the Phenotype of Pachydermoperiostosis2021

    • Author(s)
      Ishibashi Mami、Oiwa Tomohiro、Nomura Takashi、Yoshikawa Yoshiaki、Niizeki Hironori、Kabashima Kenji
    • Journal Title

      Journal of Investigative Dermatology

      Volume: 141 Issue: 12 Pages: 2973-2975

    • DOI

      10.1016/j.jid.2021.04.025

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Role of Prostaglandin E-Major Urinary Metabolite Levels in Identifying the Phenotype of Pachydermoperiostosis2021

    • Author(s)
      Mami Ishibashi
    • Organizer
      European Society of Dermatological Research
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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