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Exploring the effects of stress on the development of alopecia areata

Research Project

Project/Area Number 18K08306
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Sugawara Koji  大阪市立大学, 大学院医学研究科, 准教授 (50634078)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords肥満細胞 / 毛周期 / 毛成長 / アレルギー / ストレス / 神経内分泌 / 円形脱毛症 / 内因性カンナビノイド / カンナビノイド
Outline of Final Research Achievements

Mast cells play crucial roles in the development of alopecia areata (AA) and various types of stress responses. One of stress-related hormones, corticotropin releasing hormone (CRH) stimulates mast cells around the hair follicles. We have previously shown that endocannabinoid system, which is important for maintaining tissue homeostasis, regulates mast cell activity. Since mast cells are involved in patho-mechanism of AA, CRH and endocannabinoid could play roles in this disease.
Here, we have shown that both mast cell degranulation and its number are significantly increased within the skin of restraint stress model mice. The levels of CRH as well as endocannabinoid were also upregulated by stress. This indicates that CRH and endocannabinoid are key players in AA and those factors could be a target for developing novel therapies for AA.

Academic Significance and Societal Importance of the Research Achievements

円形脱毛症の原因としては、組織学的には毛包に対する自己免疫反応が誘導されていることが分かっているが、なぜそのような反応が惹起されるのか分かっていない。一般的には、精神的ストレスが円形脱毛症の発症に関与すると認識されているが、精神的ストレスと円形脱毛症の関係に関しては、科学的には実はよく分かっていない。本研究では、精神的ストレスが円形脱毛症の病態に与える影響に関して、肥満細胞、ストレスホルモンであるCRH、過去に我々が報告した肥満細胞制御因子の一つである「内因性カンナビノイド」に焦点を当て研究を行った。本研究で得られた結果は、円形脱毛症に対する新規治療薬開発にもつながる可能性がある。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (11 results)

All 2020 2019 2018

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] エンドクリノロジーと毛包免疫2018

    • Author(s)
      菅原 弘二
    • Journal Title

      皮膚アレルギーフロンティア

      Volume: 16 Pages: 27-30

    • Related Report
      2018 Research-status Report
  • [Journal Article] Re-investigating the Basement Membrane Zone of Psoriatic Epidermal Lesions: Is Laminin-511 a New Player in Psoriasis Pathogenesis?2018

    • Author(s)
      Natsumi Aki、Sugawara Koji、Yasumizu Makiko、Mizukami Yukari、Sano Shigetoshi、Morita Akimichi、Paus Ralf、Tsuruta Daisuke
    • Journal Title

      Journal of Histochemistry & Cytochemistry

      Volume: 66 Issue: 12 Pages: 847-862

    • DOI

      10.1369/0022155418782693

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Novel splice site mutation in the LIPH gene in a patient with autosomal recessive woolly hair/hypotrichosis: Case report and published work review2018

    • Author(s)
      Mizukami Yukari、Hayashi Ryota、Tsuruta Daisuke、Shimomura Yutaka、Sugawara Koji
    • Journal Title

      The Journal of Dermatology

      Volume: 45 Issue: 5 Pages: 613-617

    • DOI

      10.1111/1346-8138.14257

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] CRH 受容体タイプ 1 阻害は肥満細胞を制御し、アトピー性皮膚炎の症状を改善する2020

    • Author(s)
      高市美佳、菅原弘二、鶴田大輔
    • Organizer
      第71回日本皮膚科学会中部支部学術大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] CRH receptor mediated signalling is a therapeutic target for stress-related diseases by controlling excessive mast cells biology2020

    • Author(s)
      Mika Yamanaka-Takaichi, Koji Sugawara, Daisuke Tsuruta
    • Organizer
      第45回日本研究皮膚科学会学術大会
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neuroendocrine system in hair growth ~Is cannabinoid receptor-related signaling a new regulator of hair biology?~2019

    • Author(s)
      Koji Sugawara
    • Organizer
      15th Annual Meeting of the Korean Hair Research Society・Seoul, South Korea
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ストレスは肥満細胞、内因性カンナビノイドに影響を与える2019

    • Author(s)
      高市 美佳、菅原 弘二、鶴田 大輔
    • Organizer
      第112回近畿皮膚科集談会
    • Related Report
      2019 Research-status Report
  • [Presentation] 精神的ストレスと肥満細胞~内因性カンナビノイドによる制御機構~2019

    • Author(s)
      高市 美佳、菅原 弘二、鶴田 大輔
    • Organizer
      第83回日本皮膚科学会東京・東部支部合同学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] A novel regulator of mast cells under psychological stress~a neuroendocrine interaction between HPA axis and endocannabinoid system~2019

    • Author(s)
      Mika Takaichi, Koji Sugawara, Ralf Paus, Daisuke Tsuruta
    • Organizer
      The 44nd Annual Meeting of the Japanese Society for Investigative Dermatology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Excimer laser stimulated epidermal stem cells and regulated mast cells number in organ cultured human skin2018

    • Author(s)
      Ayaka Okazaki, Koji Sugawara, Ayano Yonamine, Yukari Mizukami, Daisuke Tsuruta
    • Organizer
      第13回日独皮膚科学会
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 17beta-estradiol may control human HF growth also via up-regulating the expression of cannabinoid receptor type1 expression2018

    • Author(s)
      Sayaka Togo, Koji Sugawara, Ralf Paus, Daisuke Tsuruta
    • Organizer
      International Investigative Dermatology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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