Annales de dermatologie et de venereologie · 1995
[Immunoglobulin G subclass distribution of anti-intercellular substance antibodies in pemphigus].
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Trémeau-Martinage C, Oksman F, Bazex J
Аннотация
INTRODUCTION: The purpose of this study was to analyze the IgG subclass distribution of pemphigus anti-epithelial cell surface (ECS) antibodies and to determine whether it differs according to clinical features.
MATERIALS AND METHODS: 25 skin biopsies and 16 serum samples, obtained from 27 cases of pemphigus, were analyzed by direct and indirect IF staining, with mice anti-human IgG subclasses monoclonal antibodies.
RESULTS: IgG1 deposits were observed in 21 of 25, IgG2 in 2, IgG3 in 0, and IgG4 in the 25 biopsies. IgG1 anti-ECS anti-ECS antibodies were detected in all 16 sera, IgG2 in 1, IgG3 in 1, and IgG4 in 15 sera. The anti-ECS IgG subclass distribution does not differ according to the clinical parameters studied.
DISCUSSION: The isotypic restriction to IgG1 and IgG4 subclasses, observed in this study, is similar to previously reported results. The heterogenous distribution and the small number of the studied samples did not allow to put in evidence a correlation with the clinical parameters.
MATERIALS AND METHODS: 25 skin biopsies and 16 serum samples, obtained from 27 cases of pemphigus, were analyzed by direct and indirect IF staining, with mice anti-human IgG subclasses monoclonal antibodies.
RESULTS: IgG1 deposits were observed in 21 of 25, IgG2 in 2, IgG3 in 0, and IgG4 in the 25 biopsies. IgG1 anti-ECS anti-ECS antibodies were detected in all 16 sera, IgG2 in 1, IgG3 in 1, and IgG4 in 15 sera. The anti-ECS IgG subclass distribution does not differ according to the clinical parameters studied.
DISCUSSION: The isotypic restriction to IgG1 and IgG4 subclasses, observed in this study, is similar to previously reported results. The heterogenous distribution and the small number of the studied samples did not allow to put in evidence a correlation with the clinical parameters.