2022 Fiscal Year Final Research Report
CD30 targeted therapy induces apoptosis of inflammatory cytokine-stimulated synovial fibroblasts and ameliorates collagen antibody-induced arthritis in mice
Project/Area Number |
20K09433
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 56020:Orthopedics-related
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Research Institution | Okayama University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
佐藤 康晴 岡山大学, 保健学域, 教授 (00579831)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 関節リウマチ / CD30 / ブレンツキシマブ・ベドチン / アポトーシス / コラーゲン抗体誘導関節炎モデル / 滑膜線維芽細胞 |
Outline of Final Research Achievements |
CD30 expression was significantly higher in samples from patients with rheumatoid arthritis (RA) than from those with osteoarthritis (OA). Double immunofluorescence showed a low rate of co-localization of CD30 with CD20 or CD90, but a high rate of co-localization of CD30 and CD138. CD30 mRNA expression was upregulated 11.7-fold in fibroblast-like synoviocytes (FLS) following stimulation by inflammatory cytokines. The clinical scores of CAIA mice were significantly lower following both BV treatments, however, the histological scores of CAIA mice were significantly lower only following treatment with high dose BV (70 mg/kg).
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Free Research Field |
整形外科学
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Academic Significance and Societal Importance of the Research Achievements |
関節リウマチの滑膜組織において、CD30が高発現していることを初めて示した。特に滑膜線維芽細胞は炎症性サイトカイン刺激によってCD30を高発現することがわかった。リンパ腫の治療に用いられるブレンツキシマブ・ベドチンは、コラーゲン誘導関節炎モデルマウスの関節炎を高用量で抑制した。従来の抗リウマチ薬で効果不十分な患者や、医原性リンパ増殖性疾患を併発して治療手段の限られる患者において、CD30を標的とした治療が有効である可能性が示唆された。
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