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Mechanism elucidation of skin hypersensitivity -A new attempt at applying brain function evaluation-

Research Project

Project/Area Number 19K17775
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

KUWATSUKA Sayaka  長崎大学, 病院(医学系), 助教 (20739924)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords皮膚感覚過敏 / 痒み / 神経栄養因子 / 痒疹
Outline of Research at the Start

痒み過敏のメカニズムは体液因子や神経の可塑性等によって部分的に証明されているが、まだ十分な理解が得られておらず、痛み過敏ほど解明されていない。皮膚の真皮線維芽細胞から誘導される神経栄養因子アーテミンが熱過敏を引き起こし、アトピー性皮膚炎などかゆみを生じる皮膚疾患においてかゆみ過敏を生じていることが明らかとなった。本研究では、アーテミン中和抗体や治療薬投与により皮膚感覚野をはじめとした脳への影響を様々な角度から検証する。本研究によってかゆみ過敏のメカニズムの一端を明らかにし、難治性かゆみ疾患への新たなアプローチと治療薬開発に貢献することができると考える。

Outline of Final Research Achievements

It is generally known that itching increases when warm in skin diseases. It has been previously reported that the neurotrophic factor artemin, which is derived from cutaneous dermal fibroblasts, causes heat hypersensitivity and itching hypersensitivity in skin diseases. In this study, artemin-injected mice were heat-stimulated, and brain MRI of the mice showed enhancement of the amygdala and hypothalamus. It was also confirmed that the activity of this brain was attenuated in the mice injected with the artemin neutralizing antibody. Immunostaining of artemin in human skin tissue showed the expression of artemin in prurigo and atopic dermatitis. Artemin in human serum was elevated in prurigo and atopic dermatitis.

Academic Significance and Societal Importance of the Research Achievements

本研究はアーテミン中和抗体や治療薬投与マウスにより皮膚感覚野をはじめとした脳への影響を検証し、またヒト検体を用いてアーテミンの皮膚疾患における関与を探索した。かゆみ過敏のメカニズムは未だ完全には明らかとなってはいないが、本研究が「皮膚-脳相関」の観点から、痒みの新しい評価と痒みに特化した治療開発に貢献できるものと期待する。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (17 results)

All 2021 2020 2019

All Journal Article (9 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Impact of daily wearing of fabric gloves on the management of hand eczema: A pilot study in health‐care workers2021

    • Author(s)
      Kuwatsuka Sayaka、Kuwatsuka Yutaka、Tomimura Saori、Takenaka Motoi、Terasaka Yoko、Izumikawa Koichi、Morinaga Yoshitomo、Yanagihara Katsunori、Murota Hiroyuki
    • Journal Title

      The Journal of Dermatology

      Volume: online Issue: 5 Pages: 645-650

    • DOI

      10.1111/1346-8138.15848

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 爪のケアに関する指導2021

    • Author(s)
      鍬塚さやか, 室田浩之
    • Journal Title

      Visual Dermatology

      Volume: 20 Pages: 374-376

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 【日常診療に活かせるアレルギーの知識】耳鼻咽喉科医が知っておきたいアレルギー疾患 アレルギー性皮膚疾患.2020

    • Author(s)
      鍬塚さやか, 室田浩之
    • Journal Title

      JOHNS

      Volume: 36 Pages: 343-346

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Bright side of biologics uncovered the dark side of long‐term topical steroids: A psoriatic patient treated with biologics developed severe adrenal crisis2020

    • Author(s)
      Kuwatsuka Sayaka、Koike Yuta、Hanatani Yumi、Murayama Naoya、Iwanaga Akira、Murota Hiroyuki
    • Journal Title

      The Journal of Dermatology

      Volume: 47 Issue: 8

    • DOI

      10.1111/1346-8138.15419

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Skin Mycobiome of Psoriasis Patients is Retained during Treatment with TNF and IL-17 Inhibitors2020

    • Author(s)
      Koike Yuta、Kuwatsuka Sayaka、Nishimoto Katsutaro、Motooka Daisuke、Murota Hiroyuki
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 11 Pages: 3892-3892

    • DOI

      10.3390/ijms21113892

    • NAID

      120006988163

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 【日常診療に活かせるアレルギーの知識】耳鼻咽喉科医が知っておきたいアレルギー疾患 アレルギー性皮膚疾患2020

    • Author(s)
      鍬塚さやか, 室田浩之
    • Journal Title

      JOHNS

      Volume: 36 Pages: 343-346

    • Related Report
      2019 Research-status Report
  • [Journal Article] An interleukin-17 inhibitor successfully treated a complicated psoriasis and psoriatic arthritis patient with hepatitis B virus infection and end-stage kidney disease on hemodialysis2019

    • Author(s)
      Koike Yuta、Fujiki Yumi、Higuchi Maho、Fukuchi Reika、Kuwatsuka Sayaka、Murota Hiroyuki
    • Journal Title

      JAAD Case Reports

      Volume: 5 Issue: 2 Pages: 150-152

    • DOI

      10.1016/j.jdcr.2018.11.016

    • NAID

      120006987848

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ピロリ菌除菌中に生じた薬疹より診断に至った後天性血栓性血小板減少性紫斑病の1例.2019

    • Author(s)
      福地麗雅, 鍬塚さやか, 冨野千愛, 本多舞, 鍬塚大, 室田浩之, 塚崎直子, 藤岡真知子, 宮崎泰司
    • Journal Title

      西日本皮膚科

      Volume: 81 Pages: 331-331

    • Related Report
      2019 Research-status Report
  • [Journal Article] 【"わけのわからない痒み"管理マニュアル】抗ヒスタミン薬無効時の痒みの内服療法2019

    • Author(s)
      鍬塚さやか, 室田浩之
    • Journal Title

      Derma.

      Volume: 283 Pages: 33-40

    • Related Report
      2019 Research-status Report
  • [Presentation] 開業医と大学病院で連携した乾癬治療2021

    • Author(s)
      鍬塚さやか
    • Organizer
      乾癬治療連携ミーティング
    • Related Report
      2020 Annual Research Report
  • [Presentation] 色汗症を疑われた虚偽性障害の中学男児例2020

    • Author(s)
      市来 澪, 村山直也, 本多 舞, 鍬塚さやか, 山田茂憲, 岩田賢治, 室田浩之
    • Organizer
      日本皮膚科学会第342回長崎地方会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 市中MRSAによる蜂窩織炎の1例2020

    • Author(s)
      中村俊介, 鍬塚 大, 鍬塚さやか, 室田浩之, 賀来敬仁, 柳原克紀
    • Organizer
      日本皮膚科学会第342回長崎地方会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Daily emollients and protective gloves for treatment of hand eczema: an open-labeled pilot study in health care workers2020

    • Author(s)
      Kuwatsuka S, Kuwatsuka Y, Tomimura S, Takenaka M, Terasaka Y, Izumikawa K, Morinaga Y, Yanagihara K, Murota H
    • Organizer
      第69回日本アレルギー学会学術大会・世界アレルギー機構 合同会議JSA/WAO Joint Congress 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Claudin-7 in keratinocyte is downregulated by inhibition of HMG-CoA reductase, and is highly expressed in the stratum granulosum of psoriatic epidermis2019

    • Author(s)
      Kuwatsuka S, Koike Y, Kuwatsuka Y, Yamaoka T, Murota H
    • Organizer
      49th ESDR Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 生物学的製剤による乾癬患者皮膚マイコバイオーム変化の検討2019

    • Author(s)
      小池雄太, 鍬塚さやか, 西本勝太郎, 元岡大祐, 室田浩之
    • Organizer
      第34回日本乾癬学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 当院看護師における手湿疹(進行性指掌角皮症)への取り組み2019

    • Author(s)
      鍬塚さやか
    • Organizer
      おたくさ皮膚懇話会
    • Related Report
      2019 Research-status Report
  • [Presentation] 接合菌症の1例2019

    • Author(s)
      竹中基, 鍬塚さやか, 西本勝太郎
    • Organizer
      第86回九州真菌懇話会、第3回日本医真菌学会九州・中四国支部会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2022-01-27  

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