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Analysis of lymphocyte subsets in psoriatic arthritis

Research Project

Project/Area Number 17K09984
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Collagenous pathology/Allergology
Research InstitutionTokyo Medical University

Principal Investigator

Murakami Miho  東京医科大学, 医学部, 兼任講師 (30595591)

Co-Investigator(Kenkyū-buntansha) 西本 憲弘  東京医科大学, 医学部, 兼任教授 (80273663)
辻 成佳  独立行政法人国立病院機構(大阪南医療センター臨床研究部), その他部局等, 室長 (30795761)
橋本 淳  独立行政法人国立病院機構(大阪南医療センター臨床研究部), その他部局等, 部長 (40237938)
乾 重樹  大阪大学, 医学系研究科, 特任教授 (30324750)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords乾癬性関節炎 / リンパ球サブセット / サイトカイン / 関節リウマチ / 乾癬性関節炎(PsA) / リンパ球 / IL-17 産生CD8+T 細胞 / 1.乾癬性関節炎(PsA) / IL-17産生CD8+T 細胞 / 関節リウマチ(RA) / 関節リウマチ(RA)
Outline of Final Research Achievements

Psoriatic arthritis (PsA) is a chronic, immune-mediated, inflammatory arthritis associated with psoriasis, and its etiology is still largely unknown. We analyzed lymphocyte subsets and cytokines profiles in peripheral blood samples from PsA patients. In comparison with rheumatoid arthritis (RA) patients, the proportions of CD3+ cells and CD4+ cells in PsA patients were significantly higher than those of RA patients. On the other hand, the CD25+ cell proportions in CD4+ and CD8+ T cells in PsA patients were significantly lower than those of RA patients. During tumor necrosis factor (TNF) inhibitor treatment, plasma IL-17 and IL-12/23 levels were not changed. The plasma levels of both cytokines were not correlated to the therapeutic effects, yet it has been reported that they contribute to the pathogenesis of PsA.

Academic Significance and Societal Importance of the Research Achievements

PsAは本邦で年々増加しており、その病因はおろか、病態も不明な点が多い。本研究により、PsAはRAとは違うリンパ球サブセットのプロファイリングを示したことやTNF阻害治療によるサイトカインプロファイリングを示したことにより、今後の診断の補助や治療効果の判定に役立つことが期待される。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (1 results)

All 2019

All Presentation (1 results)

  • [Presentation] 脊椎関節炎患者の血中IL-17値に対するTNF阻害治療による影響2019

    • Author(s)
      村上美帆、西本憲弘
    • Organizer
      日本脊椎関節炎学会 第29回学術集会
    • Related Report
      2019 Research-status Report

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Published: 2017-04-28   Modified: 2023-01-30  

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