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A new approach for investigating the mechanism underlying chronic itch associated with atopic dermatitis

Research Project

Project/Area Number 15K15203
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Pain science
Research InstitutionKyushu University

Principal Investigator

Tsuda Makoto  九州大学, 薬学研究院, 教授 (40373394)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords慢性掻痒 / アトピー性皮膚炎 / 脊髄後角 / アストロサイト / STAT3 / LCN2 / アトピー / 痒み / 脊髄
Outline of Final Research Achievements

The mechanisms by which itch turns into a pathological chronic state are poorly understood. This study revealed that in a model of atopic dermatitis, reactive astrocytes were persistently observed in the spinal dorsal horn (SDH) segments that corresponded to lesioned, itchy skin. A pharmacological blockade or a genetic conditional knockout of STAT3 suppressed the reactive state of SDH astrocytes and chronic itch. Furthermore, atopic dermatitis mice exhibited sensitization of itch signaling in the SDH, and, interestingly, the sensitization was normalized by suppressing reactive astrocytes. Moreover, we identified lipocalin-2 (LCN2) as an astrocytic STAT3-dependent upregulated factor that was crucial for chronic itch. These findings indicate a pivotal role of STAT3-dependent reactive astrocytes in chronic itch.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (20 results)

All 2017 2016 2015 Other

All Journal Article (6 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results,  Acknowledgement Compliant: 3 results) Presentation (12 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (2 results)

  • [Journal Article] Spinal dorsal horn astrocytes: New players in chronic itch2017

    • Author(s)
      Tsuda M
    • Journal Title

      Allergology International

      Volume: 66 Issue: 1 Pages: 31-35

    • DOI

      10.1016/j.alit.2016.07.007

    • NAID

      130005308461

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Modulation of Pain and Itch by Spinal Glia2017

    • Author(s)
      Tsuda M
    • Journal Title

      Neurosci Bull

      Volume: -- Issue: 1 Pages: 178-185

    • DOI

      10.1007/s12264-017-0129-y

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 痒みの伝達とその慢性化の神経系メカニズム2016

    • Author(s)
      津田誠
    • Journal Title

      感染 炎症 免疫

      Volume: 46 Pages: 8-12

    • Related Report
      2015 Research-status Report
  • [Journal Article] 脊髄後角におけるSTAT3依存的なアストロサイト活性化は痒みの慢性化に必要である2016

    • Author(s)
      白鳥美穂,津田誠
    • Journal Title

      実験医学

      Volume: 34 Pages: 87-90

    • Related Report
      2015 Research-status Report
  • [Journal Article] STAT3-dependent reactive astrogliosis in the spinal dorsal horn underlies chronic itch2015

    • Author(s)
      Shiratori-Hayashi M, Koga K, Tozaki-Saitoh H, Kohro Y, Toyonaga H, Yamaguchi C, Hasegawa A, Nakahara T, Hachisuka J, Akira S, Okano H, Furue M, Inoue K, Tsuda M
    • Journal Title

      Nat Med

      Volume: 21 Issue: 8 Pages: 927-931

    • DOI

      10.1038/nm.3912

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] アトピー性皮膚炎に伴う慢性的な痒みと脊髄後角アストロサイト2015

    • Author(s)
      津田誠
    • Journal Title

      生体の科学

      Volume: 66 Pages: 571-574

    • Related Report
      2015 Research-status Report
  • [Presentation] アトピー性皮膚炎等の慢性掻痒に対する中枢神経系を標的にした創薬戦略2017

    • Author(s)
      津田誠
    • Organizer
      日本薬学会第137年会
    • Place of Presentation
      仙台
    • Related Report
      2016 Annual Research Report
  • [Presentation] 慢性掻痒におけるアストロサイトSTAT3の活性化メカニズム2017

    • Author(s)
      山口千春,白鳥美穂,豊永穂奈美,津田誠
    • Organizer
      第90回日本薬理学会年会
    • Place of Presentation
      長崎
    • Related Report
      2016 Annual Research Report
  • [Presentation] 脊髄後角におけるSTAT3依存的なアストロサイト活性化は痒みの慢性化に関与する2016

    • Author(s)
      白鳥美穂,古賀啓祐,齊藤秀俊,高露雄太,蜂須賀淳一,岡野栄之,古江増隆,井上和秀,津田誠
    • Organizer
      日本薬学会第136年会
    • Place of Presentation
      横浜
    • Year and Date
      2016-03-26
    • Related Report
      2015 Research-status Report
  • [Presentation] A crucial role of spinal astrocytes in chronic itch2016

    • Author(s)
      Makoto Tsuda
    • Organizer
      第89回日本薬理学会年会
    • Place of Presentation
      横浜
    • Year and Date
      2016-03-03
    • Related Report
      2015 Research-status Report
  • [Presentation] 痒みの慢性化と脊髄後角アストロサイト2016

    • Author(s)
      津田誠
    • Organizer
      第115回日本皮膚科学会総会
    • Place of Presentation
      京都
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] STAT3-dependent reactive astrocytes in the spinal dorsal horn contribute to the maintenance of chronic itch in mice2015

    • Author(s)
      Miho Shiratori-Hayashi, Junichi Hachisuka, Hideyuki Okano, Masutaka Furue, Kazuhide Inoue, Makoto Tsuda
    • Organizer
      45th Annual Meeting Society for Neuroscience
    • Place of Presentation
      Chicago
    • Year and Date
      2015-10-17
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dorsal horn astrocytes: new player in chronic itch2015

    • Author(s)
      Makoto Tsuda
    • Organizer
      8th World Congress on Itch (WCI) 2015
    • Place of Presentation
      奈良
    • Year and Date
      2015-09-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Astrocytic lipocalin-2 in the spinal dorsal horn is required for chronic itch2015

    • Author(s)
      Miho Shiratori-Hayashi, Hidetoshi Tozaki-Saitoh, Yuta Kohro, Takeshi Nakahara, Junichi Hachisuka, Masutaka Furue, Kazuhide Inoue, Makoto Tsuda
    • Organizer
      8th World Congress on Itch (WCI) 2015
    • Place of Presentation
      奈良
    • Year and Date
      2015-09-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 体性感覚系疾患におけるグリア細胞の役割2015

    • Author(s)
      津田誠
    • Organizer
      第45回日本神経精神薬理学会
    • Place of Presentation
      東京
    • Year and Date
      2015-09-24
    • Related Report
      2015 Research-status Report
  • [Presentation] アトピー性皮膚炎モデルマウスの慢性的な痒みにおける脊髄後角アストロサイトの関与2015

    • Author(s)
      津田誠,白鳥美穂
    • Organizer
      第45回日本神経精神薬理学会
    • Place of Presentation
      東京
    • Year and Date
      2015-09-24
    • Related Report
      2015 Research-status Report
  • [Presentation] Essential role for STAT3-dependent reactive astrocytes in maintenance of chronic itch2015

    • Author(s)
      Miho Shiratori-Hayashi, Keisuke Koga, Hidetoshi Tozaki-Saitoh, Yuta Kohro, Junichi Hachisuka, Hideyuki Okano, Masutaka Furue, Kazuhide Inoue, Makoto Tsuda
    • Organizer
      第58回日本神経化学会大会
    • Place of Presentation
      さいたま
    • Year and Date
      2015-09-11
    • Related Report
      2015 Research-status Report
  • [Presentation] Role of STAT3-dependent reactive astrocytes in the spinal dorsal horn in chronic itch2015

    • Author(s)
      Miho Shiratori-Hayashi, Kazuhide Inoue, Makoto Tsuda
    • Organizer
      XII European Meeting on Glial Cells in Health and Disease
    • Place of Presentation
      Bilbao, Spain
    • Year and Date
      2015-07-15
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Remarks] ライフイノベーション分野ホームページ

    • URL

      http://life-innov.phar.kyushu-u.ac.jp/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 九州大学大学院薬学研究院ライフイノベーション分野ホームページ

    • URL

      http://life-innov.phar.kyushu-u.ac.jp/

    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2018-03-22  

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