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Research on EBI3-containing cytokines produced by epidermal keratinocytes in psoriatic lesions

Research Project

Project/Area Number 20K08672
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Morizane Shin  岡山大学, 医歯薬学域, 教授 (80423333)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords表皮角化細胞 / 乾癬 / IL-39 / EBI3 / EBV-induced gene 3
Outline of Research at the Start

尋常性乾癬は表皮肥厚および好中球・T細胞浸潤を特徴とする慢性炎症性皮膚疾患である。表皮角化細胞は過剰な細胞増殖と免疫応答を示し、病態形成に大きく関与する。
Ramnathらは表皮角化細胞におけるp19とEBI3(EBV-induced gene 3)のヘテロダイマー“IL-39”の存在を報告した。一方で、EBI3を含むヘテロ二量体サイトカインとして、他にIL-27(EBI3とp28)およびIL-35(EBI3とp35)が挙げられる。
本研究で我々は乾癬病変部表皮角化細胞産生EBI3含有サイトカイン(IL-27、IL-35、IL-39)の蛋白発現の有無、および乾癬病態形成への関与について検討する。

Outline of Final Research Achievements

We investigated the expression of EBI3-containing cytokines (IL-27, IL-35, IL-39) produced by epidermal keratinocytes in the lesions of psoriasis.In normal human epidermal keratinocytes cultured with psoriasis-like stimuli, we found that EBI3 expression was enhanced at the transcriptional level.At the protein level, EBI3 was detected as a monomer, but not as IL-27, IL-35 or IL-39.
These results suggest that it is unlikely that these cells produce IL-27, IL-35, or IL-39, and that they may produce EBI3 monomers, homodimers, homotrimers, or unknown heterodimers.

Academic Significance and Societal Importance of the Research Achievements

乾癬病変部表皮角化細胞は過剰な細胞増殖と免疫応答を示し、病態形成に大きく関与している。我々の研究は同細胞がIL-39を発現していないことを示唆した。本研究成果は乾癬の病態解明に貢献するのみならず、新規治療剤の開発に繋がる可能性がある。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (1 results)

All 2021

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Journal Article] Multifaceted Analysis of IL-23A- and/or EBI3-Including Cytokines Produced by Psoriatic Keratinocytes2021

    • Author(s)
      Tachibana Kota、Tang Nina、Urakami Hitoshi、Kajita Ai、Kobashi Mina、Nomura Hayato、Sasakura Minori、Sugihara Satoru、Jiang Fan、Tomonobu Nahoko、Sakaguchi Masakiyo、Ouchida Mamoru、Morizane Shin
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 23 Pages: 12659-12659

    • DOI

      10.3390/ijms222312659

    • NAID

      120007183235

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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