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Analysis of prurigo pathogenesis through the skin microenvironment and cross talk with internal organ immunity

Research Project

Project/Area Number 22K08444
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53050:Dermatology-related
Research InstitutionNational Defense Medical College

Principal Investigator

佐藤 貴浩  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 皮膚科学, 教授 (30235361)

Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords痒み / 痒み過敏 / 痒疹 / 炎症性腸疾患 / アトピー性皮膚炎 / 好塩基球 / アロネーシス / 消化管免疫
Outline of Research at the Start

痒疹は非常に頑固な痒みを慢性的に伴い患者の日常生活においてもまた精神的にも大きな負担となる。よくみられる疾患でありながら皮膚疾患の中で最も治療に難渋するものの一つとなっている。その病態は最近の研究で徐々に明らかなりつつあるとはいえ全容の解明には程遠い。痒疹には各種の病型があり、一部の痒疹は透析患者、糖尿病、肝疾患、アトピー性皮膚炎、内臓悪性腫瘍などに関連してみられることもある。本研究では、病型ごとに局所皮膚にみられる免疫反応、痒みを起こす神経や皮膚生理機能、そして消化管を含めた内臓免疫反応や機能と皮膚の痒みや痒疹との関連などを中心に病態の解明を試みる。

Outline of Annual Research Achievements

結節性痒疹の病変部では痒み過敏の一種であるpunctate hyperknesisのみられることを明らかにした。またリンパ球に加えてIL-4は好塩基球から、またIl-13は好酸球から産生されていることが観察された。なおpunctate hyperknesisは帯状疱疹後そう痒においてもみられることを示し、それには表皮内への神経伸長はむしろ減っていることが明らかになった。アトピー性皮膚炎においては、M2マクロファージの浸潤がみられIL-31を発現していた。また表皮にはTSLP、真皮にはperiostin発現と好塩基球浸潤がみられた。アトピーモデルマウスでの同様の所見が確認された。しかしTSLP, periostinを阻害してもIL-31陽性M2マクロファージの浸潤を抑制できず、それには好塩基球の浸潤抑制が必須であった。すなわちM2マクロファージの浸潤、IL-31産生には2型炎症下で、TSLP, periostin,そして好塩基球の存在が必要条件であることが判明した。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

これまでの研究で2型炎症の痒みにおける好塩基球とマクロファージの重要性、そしてその産生経路が徐々に明らかになってきた。また痒疹病変部でpunctate hyperknesisの状態にあることも判明した。一方で、好塩基球の浸潤機構、そして痒疹での発汗機能、各種の痒疹病型における免疫、神経病態の差異については今のところデータをえられていない。

Strategy for Future Research Activity

今後は各種痒疹ごとにサイトカイン、神経、汗腺の動態、好塩基球の分布などについて研究に着手する予定にしている。また腸炎存在下での痒みの誘導についても解析を加えたい。

Report

(2 results)
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (23 results)

All 2023 2022

All Journal Article (11 results) (of which Peer Reviewed: 9 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results) Book (5 results)

  • [Journal Article] Summary of the current status of clinically diagnosed cases of Schnitzler syndrome in Japan2023

    • Author(s)
      Takimoto-Ito R, Kambe N, Kanazawa N, Kabashima K, et al.
    • Journal Title

      Allergology International

      Volume: 72 Issue: 2 Pages: 297-305

    • DOI

      10.1016/j.alit.2022.11.004

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] IL-31?generating network in atopic dermatitis comprising macrophages, basophils, thymic stromal lymphopoietin, and periostin2023

    • Author(s)
      Hashimoto Takashi、Yokozeki Hiroo、Karasuyama Hajime、Satoh Takahiro
    • Journal Title

      Journal of Allergy and Clinical Immunology

      Volume: 151 Issue: 3 Pages: 737-746

    • DOI

      10.1016/j.jaci.2022.11.009

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mast cell protease/protease-activated receptor-2 axis: another mechanism of pigmentation in cutaneous lesions of mastocytosis.2023

    • Author(s)
      HashimotoT, Okuzawa M, Okuno S, Satoh T.
    • Journal Title

      J Eur Acad Derm Venereol

      Volume: 37 Issue: 4

    • DOI

      10.1111/jdv.18823

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pemphigoid nodularis associated with pembrolizumab in a lung cancer patient.2023

    • Author(s)
      Yamamoto M, Hashimoto T, Okuzawa M, Yashiki K, Okuno S, Awatani-Yoshidome K, Akaishi N, Satoh T.
    • Journal Title

      Eur J Dermatol

      Volume: 33 Issue: 1 Pages: 53-54

    • DOI

      10.1684/ejd.2023.4418

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] IL‐31 and IL‐31 receptor alpha in pemphigus: Contributors to more than just itch?2023

    • Author(s)
      Okuno Satoshi、Hashimoto Takashi、Yamazaki Yuki、Okuzawa Manami、Satoh Takahiro
    • Journal Title

      The Journal of Dermatology

      Volume: 50 Issue: 7 Pages: 927-930

    • DOI

      10.1111/1346-8138.16730

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Increased sensitivity to touch‐evoked itch (punctate hyperknesis) in prurigo nodularis and type 2 inflammation: A cross‐sectional pilot study2023

    • Author(s)
      Hashimoto Takashi、Okuno Satoshi、Okuzawa Manami、Satoh Takahiro
    • Journal Title

      Journal of the European Academy of Dermatology and Venereology

      Volume: 37 Issue: 6

    • DOI

      10.1111/jdv.18942

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Increased touch‐evoked itch (punctate hyperknesis) in postherpetic itch: Implications of reduced intraepidermal nerve fibers representing small fiber neuropathy2022

    • Author(s)
      Hashimoto Takashi、Okuzawa Manami、Yamamoto Mihiro、Okuno Satoshi、Satoh Takahiro
    • Journal Title

      The Journal of Dermatology

      Volume: 50 Issue: 3 Pages: 393-396

    • DOI

      10.1111/1346-8138.16627

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Erosive pustular dermatosis of the scalp-like eruption from panitumumab.2022

    • Author(s)
      Okuno S, Hashimoto T, Matsuo S, Satoh T.
    • Journal Title

      Australas J Dermatol

      Volume: 63 Issue: 2 Pages: 271-272

    • DOI

      10.1111/ajd.13791

    • Related Report
      2022 Research-status Report
  • [Journal Article] Dupilumab improves both histaminergic and touch‐evoked itch sensitization (hyperknesis) in atopic dermatitis: a pilot study2022

    • Author(s)
      Hashimoto T.、Okuno S.、Okuzawa M.、Satoh T.
    • Journal Title

      Journal of the European Academy of Dermatology and Venereology

      Volume: 36 Issue: 11

    • DOI

      10.1111/jdv.18356

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Linear morphea following Blaschko’ line with epidermal downmodulation of friend leukemia integration 1 transcription factor.2022

    • Author(s)
      Hashimoto T, Shinada Y, Okuzawa M, Satoh T
    • Journal Title

      Int J Dermatol

      Volume: 161 Issue: 12

    • DOI

      10.1111/ijd.16260

    • Related Report
      2022 Research-status Report
  • [Journal Article] Proinflammatory role of basophils on oxazolone-induced chronic inteatinal inflammation.2022

    • Author(s)
      Inaba K, Higashiyama M, Watanabe C, Tomioka A, Ito S, Tanemoto R, Mizoguchi A, Nishii S, Wada A, Sugihara N, Hanawa Y, Horiuchi K, Akita Y, Okada Y, Kurihara C, Narimatsu K, Komoto S, Tomita K, Karasuyama H, Satoh T, Hokari R.
    • Journal Title

      J Gastroenterol Hepatol

      Volume: 37 Issue: 9 Pages: 1768-1775

    • DOI

      10.1111/jgh.15964

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] A novel IL-31-generating mechanism in atopic dermatitis: essential roles of macrophages in cooporation with basophils, thymic stromal lymphopoietin and periostin.2023

    • Author(s)
      1.Hashimoto T, Satoh T.
    • Organizer
      International Societies for Investigative Dermatology 2023
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Possible association of IL-31/IL-31RA signaling and basophils with itch in porokeratosis.2023

    • Author(s)
      2.Okuno S, Hashimoto T, Sugiura R, Satoh T.
    • Organizer
      World Congress of Itch
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Expression of phosphorylated JAK1, ERK1/2, and Akt in prurigo nodularis lesions.2023

    • Author(s)
      3.Hashimoto T, Okuno S, Okuzawa M, Satoh T.
    • Organizer
      World Congress of Itch
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] 好酸球・好塩基球と痒みとの接点2023

    • Author(s)
      佐藤貴浩
    • Organizer
      第32回国際かゆみシンポジウム
    • Related Report
      2023 Research-status Report
  • [Presentation] ScScinderin in angiosarcoma cell lines and tissues -a potential therapeutic target.2022

    • Author(s)
      Yonekura Y, Imamura O, Miyai K, Kato K, Kumazawa F, Katsurada Y, Sato K, Tsuda H, Satoh T.
    • Organizer
      The 47th Annual Meeting of the Japanese Society for Investigative Dermatolohy
    • Related Report
      2022 Research-status Report
  • [Presentation] Itch sensitization (punctate hyperknesis) in prurigo nodularis and postherpetic itch: implications of reduced intraepidermal nerve fibers.2022

    • Author(s)
      Hashimoto T, Okuno S, Okuzawa M, Satoh T.
    • Organizer
      The 47th Annual Meeting of the Japanese Society for Investigative Dermatolohy.
    • Related Report
      2022 Research-status Report
  • [Presentation] アトピー性皮膚炎における好酸球性炎症の位置づけ2022

    • Author(s)
      佐藤貴浩
    • Organizer
      第71回日本アレルギー学会学術大会
    • Related Report
      2022 Research-status Report
  • [Book] 汎発性(全身性)皮膚そう痒症 今日の皮膚疾患治療指針 第5版2022

    • Author(s)
      佐藤貴浩
    • Total Pages
      4
    • Publisher
      医学書院
    • Related Report
      2022 Research-status Report
  • [Book] 痒疹とは:「診療ガイドライン2020」と海外のコンセンサス WHAT’S NEW in 皮膚科学 2022-20232022

    • Author(s)
      佐藤貴浩
    • Total Pages
      2
    • Publisher
      メディカルビュー社
    • Related Report
      2022 Research-status Report
  • [Book] 6 痒疹 皮膚科診療 秘伝の書2022

    • Author(s)
      佐藤貴浩
    • Total Pages
      4
    • Publisher
      南江堂
    • Related Report
      2022 Research-status Report
  • [Book] 多形慢性痒疹とは本当はどういう疾患か 皮膚科診療Controversy2022

    • Author(s)
      佐藤貴浩
    • Total Pages
      3
    • Publisher
      中外医学社
    • Related Report
      2022 Research-status Report
  • [Book] 1痒疹 皮膚疾患診療実践ガイド2022

    • Author(s)
      佐藤貴浩
    • Total Pages
      3
    • Publisher
      文光堂
    • Related Report
      2022 Research-status Report

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Published: 2022-04-19   Modified: 2024-12-25  

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