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Levels of regulatory and effector t cells in patients with rheumatoid arthritis

机译:类风湿关节炎患者的调节性和效应性T细胞水平

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摘要

CD4+CD25+ regulatory T cells and CD4+CD25- effector T cells are crucial in maintaining immune system homeostasis and are thus potential therapeutic targets for autoimmune disease, such as rheumatoid arthritis (RA). Forkhead box p3 (Foxp3), which is required for regulatory T (Treg) cell development and its suppressive function, is also critical in sustaining normal immune function. In the present study, the characteristics of regulatory T cells, effector T cells, and Foxp3 levels were explored in patients with RA and compared with healthy controls. Flow cytometry of peripheral blood was used to determine the level of expression of these cell populations in 70 RA patients from the Hospital of the University of the Andes and 32 healthy individuals in Mérida, Venezuela. No significant differences in the frequencies of Treg cells, effector T cells, or Foxp3 were observed in peripheral blood when RA patients were compared with healthy controls. Despite previous studies that have revealed local synovial differences in Treg cells, effector T cells, and Foxp3 expression in RA patients when compared with healthy controls, the findings of the present study suggest that there are no significant peripheral differences in this patient population.
机译:CD4 + CD25 +调节性T细胞和CD4 + CD25-效应T细胞在维持免疫系统稳态方面至关重要,因此是自身免疫性疾病(如类风湿关节炎(RA))的潜在治疗靶标。调节性T(Treg)细胞发育及其抑制功能所需的前叉箱p3(Foxp3)在维持正常的免疫功能中也至关重要。在本研究中,探讨了RA患者中调节性T细胞,效应性T细胞和Foxp3水平的特征,并与健康对照进行了比较。外周血的流式细胞仪用于确定安第斯大学医院的70名RA患者和委内瑞拉梅里达的32位健康个体的这些细胞群的表达水平。当将RA患者与健康对照进行比较时,在外周血中未观察到Treg细胞,效应T细胞或Foxp3频率的显着差异。尽管先前的研究表明与健康对照组相比,RA患者的Treg细胞,效应T细胞和Foxp3表达存在局部滑膜差异,但本研究的发现表明该患者人群没有明显的外周差异。

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