• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Possible roles of eosinophil-sensory nerve communication in itch

Research Project

Project/Area Number 19K17817
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Toyama Sumika  順天堂大学, 医学(系)研究科(研究院), 博士研究員 (50805893)

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: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords好酸球 / 感覚神経 / アトピー性皮膚炎 / 痒み / 難治性痒み / 神経線維 / 免疫細胞
Outline of Research at the Start

アトピー性皮膚炎(AD)は強い痒みのある湿疹を主病変とする慢性炎症性皮膚疾患である。その痒みは難治性痒みと言われ、患者のQOLを著しく低下させる。AD炎症局所において、感覚神経線維が増生していることが難治性痒みの一因と言われている。一方、AD炎症局所には免疫細胞が浸潤していることから、神経線維と接触することで相互に作用し、痒み過敏を増強することが考えられるが、その詳細は不明瞭である。本研究では、免疫細胞、特に好酸球及びその分化・活性化を制御するILC2に着眼し、免疫細胞と感覚神経線維の接触による相互作用の観点から、ADにおける痒み発現発症メカニズムの解明と、新規治療法及び予防法の開発を目指す。

Outline of Final Research Achievements

We set up a co-culture system of sensory neurons and eosinophils in this study. As a result of co-culture sensory nerve cells and eosinophils using this system, the sensory nerves regressed. In addition, then eosinophils promoted cell death. Moreover, activated eosinophils increased expression of chemokine and cell adhesion factors. In migration assay, sensory nerves attenuated the migration of eosinophils.
From the above results, eosinophils migrate to lesion, but their motility is attenuated by the sensory nerve-derived components, and after adhering to the sensory nerves, cell death occurs and nerve fibers are damaged.

Academic Significance and Societal Importance of the Research Achievements

これまで感覚神経と好酸球がAD炎症局所にそれぞれ存在していることは報告されていた。しかしながらこれらが近接している報告はなく、本研究結果により、両者が近接していることを確認した点で新規性及び独自性が高い。また共培養系の結果から、感覚神経線維に接着した好酸球は、その場で細胞死を起こし、神経線維を傷害することで感覚神経線維を退縮させると示唆された。
本研究成果は、好酸球と感覚神経線維の相互作用を標的としたADの新規治療法に向け、将来的に本研究成果は社会貢献に繋がる発展性の高い研究といえる。

Report

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

    (16 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (12 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] Calcium-inducible MAPK/AP-1 signaling drives semaphorin 3A expression in normal human epidermal keratinocytes.2020

    • Author(s)
      Kamata Y, Tominaga M, Umehara Y, Honda K, Kamo A, Moniaga CS, Komiya E, Toyama S, Suga Y, Ogawa H, Takamori K
    • Journal Title

      J Invest Dermatol.

      Volume: ー Issue: 7 Pages: 1346-1354

    • DOI

      10.1016/j.jid.2020.01.001

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Critical role of IL-33, but not IL-25 or TSLP, in silica crystal-mediated exacerbation of allergic airway eosinophilia2020

    • Author(s)
      Unno Hirotoshi、Arae Ken、Matsuda Akira、Ikutani Masashi、Tamari Masato、Motomura Kenichiro、Toyama Sumika、Suto Hajime、Okumura Ko、Matsuda Akio、Morita Hideaki、Sudo Katsuko、Saito Hirohisa、Matsumoto Kenji、Nakae Susumu
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 533 Issue: 3 Pages: 493-500

    • DOI

      10.1016/j.bbrc.2020.09.046

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Robust induction of neural crest cells to derive peripheral sensory neurons from human induced pluripotent stem cells2020

    • Author(s)
      Umehara Yoshie、Toyama Sumika、Tominaga Mitsutoshi、Matsuda Hironori、Takahashi Nobuaki、Kamata Yayoi、Niyonsaba Francois、Ogawa Hideoki、Takamori Kenji
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 4360-4360

    • DOI

      10.1038/s41598-020-60036-z

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A method for induction of peripheral sensory neurons from human induced pluripotent stem cells.2021

    • Author(s)
      Sumika Toyama, Yoshie Umehara, Mitsutoshi Tominaga, Kenji Takamori.
    • Organizer
      第29回国際痒みシンポジウム
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Kinetic analysis of regulatory T cells in skin barrier disruption.2020

    • Author(s)
      Sumika Toyama, Catharina Sagita Moniaga, Mitsutoshi Tominaga, Hideoki Ogawa, Kenji Takamori.
    • Organizer
      第45回 日本研究皮膚科学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Endomorphin preferentially induces mechanical alloknesis under the enzymatic control of DPPIV.2020

    • Author(s)
      Eriko Komiya, Ryo Hatano, Takumi Itoh, Kotaro Honda, Yayoi Kamata, Sumika Toyama, Catharina Sagita Moniaga,Haruna Otsuka, Kei Ohnuma, Mitsutoshi Tominaga, Chikao Morimoto, Kenji Takamori.
    • Organizer
      第45回 日本研究皮膚科学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] カルシウムイオン濃度は正常ヒト表皮におけるセマフォリン3A遺伝子の発現制御に関与する2020

    • Author(s)
      鎌田弥生、冨永光俊、本田耕太郎、Catharina Sagita Moniaga、古宮栄利子、外山扇雅、髙森建二
    • Organizer
      第38回サイトプロテクション研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Regulatory T cells (Tregs) modulate skin homeostasis to release inhibitory cytokines.2020

    • Author(s)
      RegulSumika Toyama, Catharina Sagita Moniaga, Mitsutoshi Tominaga, Kenji Takamori.
    • Organizer
      JSA/WAO Joint Congress 2020.
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ossible roles of eosinophil-sensory nerve communication in atopic dermatitis.2019

    • Author(s)
      Toyama S, Ogawa H, Suga Y, Tominaga M, Takamori K.
    • Organizer
      第15回 Tokyo Scientific Forum for Atopic Dermatitis and Psoriasis (TAP)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Possible regulation of mechanical itch by CD26/DPPIV.2019

    • Author(s)
      Komiya E, Hatano R, Itoh T, Otsuka H, Kamata Y, Honda K, Toyama S, C, Ohnuma K, Tominaga M, Morimoto C, Takamori K.
    • Organizer
      The 10th World Congress on Itch, Sydney
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Calcium/MEK1/2/AP-1 signaling axis induces semaphorin 3A expression in normal human epidermal keratinocytes.2019

    • Author(s)
      Kamata Y, Tominaga M, Umehara Y, Honda K, Kamo A, Moniaga C, Komiya E, Toyama S, Suga Y, Takamori K.
    • Organizer
      The 10th World Congress on Itch, Sydney
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Possible role for CD26/DPPIV in regulating mechanical itch (Alloknesis)2019

    • Author(s)
      Komiya-Suyama E, Hatano R, Itoh T, Otsuka H, Kamata Y, Honda K, Toyama S, Moniaga C, Ohnuma K, Tominaga M, Morimoto C, Takamori K.
    • Organizer
      28th European Academy of Dermatology and Venereology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Elucidation of the signaling pathway involved in Sema3A gene expression in normal human epidermal keratinocytes.2019

    • Author(s)
      Kamata Y, Tominaga M, Umehara Y, Honda K, Kamo A, Toyama S, Suga Y, Takamori K.
    • Organizer
      28th European Academy of Dermatology and Venereology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] CD26/ dipeptidyl-peptidase IVは機械的かゆみの抑制因子である2019

    • Author(s)
      古宮栄利子、波多野良、冨永光俊、伊藤匠、鎌田弥生、本田耕太郎、外山扇雅、カタリナ サギタ モニアガ、大沼圭、森本幾夫、高森建二
    • Organizer
      日本病態プロテアーゼ学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Possible roles of eosinophil-sensory nerve communication in atopic dermatitis.2019

    • Author(s)
      Toyama S, Sato-Fukami R, Ogawa H, Suga Y, Tominaga M, Takamori M.
    • Organizer
      第118回 日本皮膚科学会総会
    • Related Report
      2019 Research-status Report
  • [Book] 痒みのメカニズム~皮膚から脊髄まで~2019

    • Author(s)
      冨永光俊、外山扇雅、古宮栄利子、鎌田弥生、髙森建二
    • Total Pages
      7
    • Publisher
      日本臨床皮膚科医会雑誌
    • Related Report
      2019 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi