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Ann Rheum Dis:银屑病关节炎中滑膜组织多功能T细胞与DAPSA的关联

2019-01-10 xiangting MedSci原创

这些数据证明,PsA滑膜组织中多功能T细胞的富集与DAPSA和离体治疗反应密切相关。

这项研究探讨了银屑病关节炎(PsA)滑膜组织的多功能T细胞及其与临床疾病的关联和对治疗的意义。

酶解/机械性消化PsA滑膜组织以产生滑膜组织单细胞悬浮液。使用CD161作为Th17适应性的标志物,通过流式细胞术在匹配的PsA滑膜组织和外周血中测定多功能CD4、CD8、T辅助细胞1(Th1)、Th17和exTh17细胞频率。评估滑膜T细胞多功能性与银屑病关节炎疾病活动性(DAPSA)中关联,以及使用当前治疗模式,磷酸二酯酶4(PDE4)抑制剂培养的滑膜细胞悬浮液中的滑膜T细胞多功能性。

CD4+ T细胞浸润的PsA滑膜组织表达较高水平的白介素(IL)-17A、干扰素γ(IFN-γ)、GM-CSF和CD161,同时Th1、Th17和exTh17 T辅助细胞亚群富集(p均<0.05)。有趣的是,与匹配的血液相比,很大比例的滑膜T细胞亚群对GM-CSF、肿瘤坏死因子(-TNF)、-IL-17或IFN-γ呈三阳性(p均<0.05)。重要的是,多功能T细胞频率与DAPSA相关:Th1-GM-CSF+/TNF+/ IFN-γ+(r=0.7,p<0.01)、Th17-GM-CSF+/TNF+/ IL-17+(r=0.6,p<0.057)和exTh17-GM-CSF+/TNF+/ IFN-γ+(r=0.7,p=0.0096),没有观察到与产生单细胞因子的T细胞有关联。离体培养PsA滑膜组织细胞悬浮液后,产生GM-CSF+TNFα+IL-17A+或/IFN-γ+的多功能T细胞(p<0.05)被PDE4抑制剂所抑制,而不是产生单细胞因子的T细胞。

这些数据证明,PsA滑膜组织中多功能T细胞的富集与DAPSA和离体治疗反应密切相关。

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    2019-01-12 lmm397
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