Immunofluorescence studies using skin sections of recessive dystrophic epidermolysis bullosa patients indicated that the antigen of anti-p200 pemphigoid is not a fragment of type VII collagen

被引:16
作者
Liu, YL
Shimizu, H
Hashimoto, T
机构
[1] Kurume Univ, Sch Med, Dept Dermatol, Kurume, Fukuoka 8300011, Japan
[2] Gen Navy Hosp, Dept Dermatol, Beijing 100037, Peoples R China
[3] Hokkaido Univ, Sch Med, Dept Dermatol, Kita Ku, Sapporo, Hokkaido 0608638, Japan
关键词
anti-p200; pemphigoid; immunoblotting; immunofluorescence; recessive dystrophic epidermolysis bullosa; type VII collagen;
D O I
10.1016/S0923-1811(03)00092-6
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
Background: There are a large number of autoimmune bullous diseases, which have distinct autoantibodies. Several reports on cases with IgG autoantibodies against a novel 200 kDa dermal protein have been published, for which we suggested the term, anti-p200 pemphigoid. However, the nature of this 200 kDa antigen has not been well characterized. Objective: In this study, we examined the relationship between the 200 kDa protein and type VII collagen. Methods: We collected sera from 12 cases of anti-p200 pemphigoid and skin sections from six cases of recessive dystrophic epidermolysis bullosa (RDEB). The reactivity of these sera was examined by indirect immunofluorescence using sections of the disease skin. Results: we have shown that all the 12 anti-p200 pemphigoid sera could react with basement membrane zone of five cases of RDEB, while epidermolysis bullosa acquisita (EBA) sera were negative in these skins. In addition, in a case of RDEB, EBA sera reacted with intracytoplasmic deposition of type VII collagen, while no anti-p200 pemphigoid sera showed this reactivity. Conclusion: These results strongly suggested that the 200 kDa antigen is not a fragment of type VII collagen, but a specific autoantigen. (C) 2003 Japanese Society for Investigative Dermatology. Published by Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:125 / 129
页数:5
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