Circulating basement membrane zone antibodies are found in lichen sclerosus of the vulva
- 12 February 2004
- journal article
- Published by Wiley in Australasian Journal of Dermatology
- Vol. 45 (1), 12-15
- https://doi.org/10.1111/j.1440-0960.2004.00026.x
Abstract
This study was undertaken to investigate the prevalence of basement membrane zone (BMZ) antibodies, their subtypes and clinical correlations in 96 patients attending the Oxford vulval clinic with lichen sclerosus (LS) of the vulva. Indirect immunofluorescence of serum (intact and split skin) to immunoglobulin (Ig)G was performed looking for the presence or absence of staining at the BMZ. Eighteen patients' sera (14 with positive indirect immunofluorescence to IgG) were examined for IgG antibodies of subclasses IgG1, 2 and 3, and 23 sera were examined for IgG4 subclass. Immunoblotting was performed in seven patients, and showed antibodies to BP180 in six patients and BP230 in one. One‐third of patients with vulval LS had BMZ antibodies binding to the epidermal side of salt split skin. Immunoblotting showed antibodies to BP180 collagen XVII (six of seven patients) and BP230 in one. The subclasses were chiefly IgG1 and 2, different from those seen in bullous pemphigoid. No clinical correlation was found between the presence of antibodies and the presence of erosions, severity of scarring, age of onset of disease or response to treatment. These antibodies may be a reflection of a tendency to produce autoantibodies or be relevant to pathogenesis.Keywords
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