T-cell receptor use in early rheumatoid arthritis.

T-cell receptor use in early rheumatoid arthritis.
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T 细胞受体在早期类风湿性关节炎中的应用。

DOI:
10.1111/j.1749-6632.1995.tb44500.x
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发表时间:
1995
影响因子:
5.2
通讯作者:
Sampieri,A
Sampieri,A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Padula,SJ;Sampieri,A

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类风湿性关节炎 (RA) 是一种多系统疾病,滑膜炎症是其最具特征性的发现。尽管 RA 的病因仍不清楚,但目前有多种证据表明 Tap 细胞在类风湿性滑膜炎症的发病机制中发挥着重要作用。进一步描述 RA 中 T 细胞参与性质的一个重大障碍是缺乏 RA 相关抗原的鉴定。测试滑膜来源的 T 细胞对假定的疾病相关抗原的反应性的研究尚未得出结论。鉴于我们理解上的这一空白,已经采取了替代方法,包括检查滑膜来源的 T 细胞表达的克隆分布 T 细胞受体 (TCRaP)。这些研究试图确定有偏差或受限的 TCR 库,这将提示抗原/自身抗原或超抗原诱导的 T 细胞扩增的发病机制。由于可用的抗人 TCR 抗体数量和从关节获得的细胞数量的限制,这些研究利用聚合酶链反应 (PCR) 来分析 TCR 库。在一些自身免疫动物模型中发现致病性 T 细胞的克隆性受到限制,表明 TCR 在 RA 中的使用可能存在偏见或限制。例如,在实验性过敏性脑脊髓炎(一种与多发性硬化症相似的疾病模型)中,对髓磷脂碱性蛋白反应性脑炎性 T 细胞的分析揭示了有限的克隆反应,这由受限的 TCRap 库所证明。~.~ EAE 中受限 TCR 库的发现导致使用针对 TCR 可变 (V) 区的抗体疗法来预防和改善疾病。 24然而,迄今为止,对 RA 滑膜 TCR 谱系的研究得出了相互矛盾的结果。这种变异性的一个可能解释是普遍使用从患有长期疾病的患者身上获得的滑膜。在这些情况下,与疾病相关的 TCR 的检测可能会因非特异性 cll 的募集或抗原反应性的多样化而变得模糊。在当前的研究中,我们检查了早期 RA 患者滑膜 T 细胞的 TCR Vp 基因家族库。我们的研究结果是在检查 RA 中 TCR 全部的其他研究的结果的背景下进行讨论的。
Rheumatoid arthritis (RA) is a multisystemic disease with synovial inflammation its most characteristic finding.'Although the etiology of RA remains elusive, there are now several lines of evidence that suggcst Tap cells play an important role in the pathogenesis of rheumatoid synovial inflammation. A significant obstacle to the further delineation of the nature of T-cell involvement in RA has been the lack of identification of an RA-relevant antigen. Studies testing synovial-derived T-cells' reactivity against putative disease-relevant antigens have been inconclusive. In view of this void in our understanding, alternative approaches including examination of the clonally distributed T-cell receptor (TCRaP) expressed by synovial-derived T-cells have been carried out. These studies have attempted to identify a biased or restricted TCR repertoire, which would suggest a pathogenetic mechanism of antigen/autoantigen or superantigen-induced T-cell expansion. Due to limitations of both the number of available anti-human TCR antibodies and of the number of cells obtaincd from the joint, these studies have utilized the polymerase chain reaction (PCR) for analysis of the TCR repertoire. Possible biased or restricted usage of TCR in RA was suggested by the finding of restricted clonality among the pathogenic T-cells in some animal models of autoimmunity. For example, in experimental allergic encephalomyelitis, a disease model with similarities to multiple sclerosis, analysis of myelin basic protein-reactive, encephalitogcnic T-cells has revealed a limited clonal response as evidenced by a restricted TCRap repert~ ire.~.~ The finding of a restricted TCR repertoire in EAE has led to the use of antibody therapy directed against the variable (V) region of the TCR for the prevention and amelioration of disease. 24To date, however, studies of the synovial TCR repertoire in RA have yielded conflicting results. A possible explanation for this variability is the common use of synovium obtained from patients with long-standing disease. In these cases detection of the disease-relevant TCR may be obscured by recruitment of nonspecific cclls or diversification of antigen reactivity. In the current study we have examined the TCR Vp gene family repertoire of synovial T-cells from patients with early stage RA. Our findings are discussed in the context of the results from the other studies that have examined the TCR repertoire in RA.
脑特异性自身免疫性疾病中的细胞凋亡
DOI: 10.1016/0952-7915(95)80057-3
发表时间: 1995
影响因子: 7
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