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Role of epidermal osmotic pressure in dry skin induced itch

Research Project

Project/Area Number 15K19193
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Pain science
Research InstitutionJuntendo University (2017-2018)
Tokai University (2015-2016)

Principal Investigator

Kamo Atsuko  順天堂大学, 医療看護学部, 准教授 (50614088)

Research Collaborator TAKAMORI kenji  
TOMINAGA mitsutoshi  
KAMATA yayoi  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords痒み / ドライスキン / 浸透圧 / 皮膚バリア機能 / 表皮角化細胞 / 難治性痒み / 表皮ケラチノサイト / ケラチノサイト / ホメオスタシス
Outline of Final Research Achievements

Increase of transepidermal water loss is observed in the skin with impaired barrier function, which represents the disturbance of osmotic homeostasis in the epidermis. To examine the correlation between osmotic change in the epidermis and dry skin induced itch, animal model of dry skin was utilized in this study. The epidermal expression of TRPV4 which is activated by hypoosmotic stress, increased 24 h after barrier disruption. Furthermore, itch related mediators expression was induced in keratinocytes cultured in hypo- and hyperosmotic medium. Taken together, skin barrier function affects osmotic homeostasis in the epidermis, possibly leading to itch sensation.

Academic Significance and Societal Importance of the Research Achievements

皮膚は身体の表面を覆い、身体の中と外の水分移動などを制御する皮膚バリア機能をもつ。健常な皮膚と比較して、ドライスキンでは皮膚バリア機能が低下するため、皮膚を介して蒸散する水分量が増加し、その結果、表皮内の浸透圧環境が変動すると考えられる。本研究では、表皮内浸透圧環境とドライスキンの痒み発生メカニズムの関連を検討した。その結果、皮膚に分布する表皮角化細胞が皮膚バリア機能の低下に伴う水分量の減少を感知し、痒みに関連する物質の産生を行うことが示唆された。この成果は、ドライスキンの痒みやドライスキンを伴う様々な疾患に対する新たな治療戦略につながると考えられる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (14 results)

All 2018 2017 2016

All Journal Article (10 results) (of which Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Journal Article] Why does atopic dermatitis itch?2018

    • Author(s)
      冨永光俊、加茂敦子、鎌田弥生、高森建二
    • Journal Title

      Nihon Hifu Meneki Arerugy Gakkai Zasshi

      Volume: 1 Issue: 2 Pages: 90-97

    • DOI

      10.18934/jscia.1.2_90

    • NAID

      130007580477

    • ISSN
      2433-7846, 2433-7854
    • Year and Date
      2018-04-30
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 痒みのメカニズム:痒みの難治化を中心に. 特集I/痒み―最近の話題―2018

    • Author(s)
      冨永光俊、加茂敦子、鎌田弥生、高森建二.
    • Journal Title

      神経内科

      Volume: 89 Pages: 14-22

    • Related Report
      2018 Annual Research Report
  • [Journal Article] かゆみの発?・慢性化とかゆみ過敏メカニズム2018

    • Author(s)
      冨永光俊、加茂敦子、鎌田弥生、高森建二.
    • Journal Title

      薬局

      Volume: 69 Pages: 9-17

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Gastrin-releasing peptideおよび brain-natriuretic peptideと掻痒2018

    • Author(s)
      冨永光俊、加茂敦子、本田耕太郎、鎌田弥生、高森建二
    • Journal Title

      臨床免疫・アレルギー科

      Volume: 69 Pages: 356-361

    • Related Report
      2017 Research-status Report
  • [Journal Article] Efficacy of an emollient containing diethylene glycol/dilinoleic acid copolymer for the treatment of dry skin and pruritus in patients with senile xerosis.2017

    • Author(s)
      Izumi R, Negi O, Suzuki T, Tominaga M, Kamo A, Suga Y, Matsukuma S, Takamori K.
    • Journal Title

      J Cosmet Dermatol.

      Volume: 印刷中 Issue: 4 Pages: 197-204

    • DOI

      10.1111/jocd.12332

    • Related Report
      2018 Annual Research Report 2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanisms and Treatments of Dry SkinInduced itch2017

    • Author(s)
      A Kamo、M Tominaga、Y Kamata、K Takamori
    • Journal Title

      Journal of Clinical and Cosmetic Dermatology

      Volume: 1 Issue: 3 Pages: 1-7

    • DOI

      10.16966/2576-2826.114

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 頑固な掻痒に対する内服薬: レミッチを中心に2017

    • Author(s)
      冨永光俊、加茂敦子、高森建二
    • Journal Title

      Visual Dermatology

      Volume: 16 Pages: 860-864

    • Related Report
      2017 Research-status Report
  • [Journal Article] Relationships among plasma granzyme B level, pruritus and dermatitis in patients with atopic dermatitis.2016

    • Author(s)
      Kamata Y, Kimura U, Matsuda H, Tengara S, Kamo A, Umehara Y, Iizumi K, Kawasaki H, Suga Y, Ogawa H, Tominaga M, Takamori K.
    • Journal Title

      J Dermatol Sci

      Volume: 84 Issue: 3 Pages: 266-271

    • DOI

      10.1016/j.jdermsci.2016.09.009

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] アトピー性皮膚炎における痒みのメカニズムと対策.2016

    • Author(s)
      冨永光俊,加茂敦子,楠部史也,髙森建二.
    • Journal Title

      雑誌 小児科

      Volume: 57 Pages: 1121-1133

    • NAID

      40020934629

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neurotropin suppresses itch-related behavior in NC/Nga mice with atopic dermatitis-like symptoms.2016

    • Author(s)
      Kamo A, Tominaga M, Matsuda H, Kina K, Kamata Y, Umehara Y, Ogawa H, Takamori K.
    • Journal Title

      J Dermatol Sci

      Volume: 81 Issue: 3 Pages: 212-215

    • DOI

      10.1016/j.jdermsci.2015.11.014

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] 6-ニトロトリプトファンを指標としたアトピー性皮膚炎の早期検出2016

    • Author(s)
      飯泉恭一,川崎広明,冨永光俊,重永綾子,加茂敦子,鎌田弥生,髙森建二,山倉文幸
    • Organizer
      第37回トリプトファン研究会
    • Place of Presentation
      東京農業大学 世田谷キャンパス(東京都、世田谷区)
    • Year and Date
      2016-12-10
    • Related Report
      2016 Research-status Report
  • [Presentation] アトピー性皮膚炎モデルマウスの痒みに対するノイロトロピンの有効性の検討.2016

    • Author(s)
      加茂敦子,冨永光俊,髙森建二
    • Organizer
      第6回基礎科学をもとにしたCo-Medical研究会
    • Place of Presentation
      山形大学医学部看護学科(山形県、山形市)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
  • [Presentation] Neurotropin, an analgesic agent, suppresses itch in NC/Nga mice with atopic dermatitis-like symptoms.2016

    • Author(s)
      Kamo A, Tominaga M, Ogawa H, Takamori K
    • Organizer
      46th Annual European Society for Dermatological Research (ESDR) Meeting
    • Place of Presentation
      Technical University of Munich, Garching campus (Germany, Munich)
    • Year and Date
      2016-09-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Book] 新訂版 図解ワンポイント 解剖学2016

    • Author(s)
      渡辺皓,加茂敦子,石田陽子,三浦奈都子,松田友美,菅野恵美
    • Total Pages
      231
    • Publisher
      サイオ出版
    • Related Report
      2016 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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