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Elucidation of the pathogenic mechanism of acneiform skin eruptions caused by molecular targeted drugs

Research Project

Project/Area Number 20K17357
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53050:Dermatology-related
Research InstitutionNara Medical University

Principal Investigator

Ommori Rie  奈良県立医科大学, 医学部, 特任助教 (20533722)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordshuman β-defensin / 抗菌ペプチド / 自然免疫応答 / 分子標的治療薬 / EGFR阻害薬 / ざ瘡様皮疹 / 薬疹
Outline of Research at the Start

分子標的治療薬は種々の悪性腫瘍の治療に頻用されているが、その一方で、特徴的な薬疹が増加してきている。しかしその発症機序については未だ不明な点が多い。これまでにわれわれは、上皮成長因子受容体(EGFR)阻害薬が、培養ケラチノサイトの抗菌ペプチド産生を抑制することを明らかにした。本研究では、このEGFR阻害薬の皮膚自然免疫応答への影響に着目し、EGFR阻害薬投与患者皮膚における免疫関連分子、皮膚細菌叢と皮膚症状との相関を検討し、さらに培養細胞および動物モデルを用いて、EGFR阻害薬の自然免疫応答へ及ぼす影響のメカニズムを詳細に調べ、薬疹発症機序の一端を明らかし、その治療法、予防法の開発を目指す。

Outline of Final Research Achievements

EGFR inhibitors (EGFRIs) are a well-established targeted therapy for several cancers, and these drugs frequently cause cutaneous adverse effects such as acneiform eruptions. However, the mechanism of the reactions remains unclear. In the present study, we investigated whether EGFRIs have an influence on innate immune response in patients’ skin to reveal the pathological mechanism of cutaneous adverse reactions caused by EGFRIs. In this study, we found that human β-defensin (hBD) was significantly decreased in patients with acneiform eruptions. S. epidermidis induced the expression of TGF-α in a TLR2-dependent manner, and subsequently produced hBD3 through EGFR signaling. EGFR signaling is necessary for hBD3 production induced by S. epidermidis. Our results suggest that S. epidermidis induce the expression of hBD3 via EGFR by inducing TGF-α under normal condition, but in patients treated with EGFRIs, hBD3 expression is significantly decreased, resulting in acneiform eruptions.

Academic Significance and Societal Importance of the Research Achievements

本研究の結果、EGFR阻害薬によるざ瘡様皮疹の発症にはβ-defensinの低下が密接に関与いる可能性が示唆された。平時ではブドウ球菌の感染はTGF-αとの相乗効果によりβ-defensinの発現を誘導することで、自然免疫応答を維持しているが、EGFR阻害剤を投与された患者においてはβ-defensin発現が著明に低下し、ざ瘡様皮疹が生じるのではないかと考えられた。

Report

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

    (9 results)

All 2023 2022 2021 2020

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (7 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Serum Soluble OX40 as a Diagnostic and Prognostic Biomarker for Drug-Induced Hypersensitivity Syndrome/Drug Reaction with Eosinophilia and Systemic Symptoms2022

    • Author(s)
      Mitsui Y, Shinkuma S, Nakamura-Nishimura Y, Ommori R, Ogawa K, Miyagawa F, Mori Y, Tohyama M, Asada H
    • Journal Title

      J Allergy Clin Immunol Pract

      Volume: 10 Issue: 2 Pages: 585-565

    • DOI

      10.1016/j.jaip.2021.10.042

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reduced induction of human β-defensins is involved in the pathological mechanism of cutaneous adverse effects caused by epidermal growth factor receptor monoclonal antibodies.2020

    • Author(s)
      Ommori R, Nakamura Y, Miyagawa F, Shobatake C, Ogawa K, Koyama F, Sho M, Ota I, Kitahara T, Hontsu S, Muro S, Asada H
    • Journal Title

      Clin Exp Dermatol

      Volume: 45 Issue: 8 Pages: 1055-1058

    • DOI

      10.1111/ced.14311

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Acneiform eruptions caused by EGFR inhibitors may result from reduced expression of human β-defensin-3 induced by S. epidermidis.2023

    • Author(s)
      Rie Ommori, Satoru Shinkuma, Hideo Asada.
    • Organizer
      International Societies for Investigative Dermatology Meeting 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] S. epidermidis enhance human β-defensin-3 production via EGFR by inducing TGF-α.2022

    • Author(s)
      Rie Ommori, Yuki Nishimura, Fumi Miyagawa, Chinatsu Shobatake, Kohei Ogawa, Satoru Shinkuma, Hideo Asada.
    • Organizer
      47th Annual Meeting of JSID
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EGFR阻害薬によるブドウ球菌由来のβ-defensin産生阻害とざ瘡様皮疹発症への影響2022

    • Author(s)
      御守里絵、西村友紀、宮川史、正畠千夏、小川浩平、新熊悟、浅田秀夫
    • Organizer
      第52回日本皮膚免疫アレルギー学会総会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Cutaneous adverse events caused by EGFR inhibitors may result from reduced expression of human ß-defensins induced by staphylococci.2021

    • Author(s)
      Rie Ommori, Yuki Nishimura, Fumi Miyagawa, Chinatsu Shobatake, Kohei Ogawa, Satoru Shinkuma, Hideo Asada.
    • Organizer
      46th Annual Meeting of JSID
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] EGFR阻害薬によるブドウ球菌由来のβ-defensin産生阻害とざ瘡様皮疹発症への影響2021

    • Author(s)
      御守里絵、西村友紀、正畠千夏、小川浩平、宮川史、新熊悟、浅田秀夫
    • Organizer
      第51回日本皮膚免疫アレルギー学会総会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Reduced induction of human β-defensins is involved in the pathological mechanism of cutaneous adverse effects caused by EGFR monoclonal antibodies.2020

    • Author(s)
      Rie Ommori, Yuki Nakamura, Fumi Miyagawa, Chinatsu Shobatake, Kohei Ogawa, Fumikazu Koyama, Masayuki Sho, Ichiro Ota, Tadashi Kitahara, Shigeto Hontsu, Sigeo Muro, Hideo Asada.
    • Organizer
      45th Annual Meeting of JSID
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 表皮自然免疫応答に着目したEGFR阻害薬による薬疹の病態解明2020

    • Author(s)
      御守里絵、西村友紀、正畠千夏、小川浩平、宮川史、浅田秀夫
    • Organizer
      第50回日本皮膚免疫アレルギー学会総会学術大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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