Reduced numbers of circulating γδ T cells in patients with bullous pemphigoid

Reduced numbers of circulating γδ T cells in patients with bullous pemphigoid
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大疱性类天疱疮患者循环 γδ T 细胞数量减少

DOI:
10.1111/j.1600-0625.2009.00875.x
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发表时间:
2009
影响因子:
3.6
通讯作者:
A. Rensing-Ehl
A. Rensing-Ehl
中科院分区:
医学2区
文献类型:
--
作者:
Oswald;P. Fisch;T. Jakob;L. Bruckner-Tuderman;S.F. Martin;A. Rensing-Ehl

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翻译后摘要:大疱性类天疱疮(BP)是一种自身免疫性起泡性皮肤病,其特征在于半桥粒蛋白的自身抗体。自身免疫反应的启动和调节知之甚少。我们分析了未经治疗的BP患者中具有免疫调节功能的细胞亚群。BP患者外周血NKT和NK细胞数量正常,γδ T细胞减少。γδ T细胞在病变皮肤中很少检测到,这与它们在皮肤中的隔离有关。在大多数患者中,免疫抑制治疗后自身抗体滴度的临床缓解和降低并不伴随着循环γδ T细胞的增加。在BP患者中,Vγδ基因的使用没有改变,BP患者的γδ T细胞在对异戊烯基焦磷酸反应时增殖是有功能的。我们的数据为进一步研究γδ T细胞在BP免疫发病机制中的作用提供了基础。
Abstract:Bullous pemphigoid (BP) is an autoimmune blistering skin disease characterized by autoantibodies to hemidesmosomal proteins. The initiation and regulation of the autoimmune response are poorly understood. We analysed cell subsets with immunoregulatory functions in untreated BP patients. While the numbers of circulating NKT and NK cells were normal, γδ T cells were reduced in BP patients. γδ T cells were rarely detected in lesional skin, arguing against their sequestration in the skin. In most patients, clinical remission and reduction of autoantibody titres after immunosuppressive therapy was not accompanied by an increase of circulating γδ T cells. Vγδ gene usage was not altered in BP patients and the γδ T cells of BP patients were functional as they proliferated in response to isopentenyl pyrophosphate. Our data provide a basis for further investigations on the role of γδ T cells in the immunopathogenesis of BP.
慢性皮肤红斑狼疮中γδ细胞的积累
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