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首页> 外文期刊>Experimental dermatology >Autoantibodies of non‐inflammatory bullous pemphigoid hardly deplete type XVII XVII collagen of keratinocytes
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Autoantibodies of non‐inflammatory bullous pemphigoid hardly deplete type XVII XVII collagen of keratinocytes

机译:非炎症性大疱性大疱的自身抗体难以耗尽型XVII XVII胶原蛋白的角质形成细胞

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摘要

Abstract Type XVII collagen ( COL 17) and the non‐collagenous 16A ( NC 16A) domain is regarded as the major pathogenic domains for bullous pemphigoid ( BP ). Some patients with BP have autoantibodies against parts of COL 17 outside the NC 16A domain (hereinafter the non‐ NC 16A domain) and show less inflammatory manifestations. There were no significant differences in titres and IgG subclasses between NC 16A‐ BP and non‐ NC 16A‐ BP as determined by indirect immunofluorescent microscopy. The neutrophil activation capacities determined by ROS release did not differ between NC 16A‐ BP and non‐ NC 16A‐ BP . However, NC 16A‐ BP IgG depleted COL 17 in a dose‐dependent manner. Treatment with NC 16A‐ BP IgG, but not with non‐ NC 16A‐ BP IgG, significantly decreased the adhesion strength. We speculate that the differences in clinical severity between NC 16A‐ BP and non‐ NC 16A‐ BP relate to the degree of COL 17 depletion.
机译:摘要XVII型胶原(COL 17)和非胶原16A(NC 16A)结构域被认为是大疱性Pemphigoid(BP)的主要致病结构域。 一些患有BP的患者对NC 16A结构域外部的COL 17的部分患者具有自身抗体(下文中,非NC 16A结构域)并显示出较少的炎症表现。 通过间接免疫荧光显微镜测定,Nc 16a-bp和非Nc 16a-bp之间的滴度和IgG亚类没有显着差异。 通过ROS释放确定的中性粒细胞激活能力在NC 16A-BP和非NC 16A-BP之间没有区别。 然而,NC 16A-BP IgG以剂量依赖性方式耗尽COL 17。 用NC 16A-BP IgG处理,但不具有非NC 16A-BP IgG,显着降低了粘合强度。 我们推测了NC 16A-BP和非NC 16A-BP之间的临床严重程度的差异与COL 17耗尽的程度有关。

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