Subclass profile of allergen-specific IgG antibodies in atopic dogs

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• 作者：M. J Day ; A Corato ; S. E Shaw
• 关键词：Leptospirosis ; Zoo ; Wildlife ; Mammals
• 刊名：Research in Veterinary Science
• 出版年：1996
• 出版时间：September 1996
• 年：1996
• 卷：61
• 期：2
• 页码：136-142
• 全文大小：746 K

文摘

Levels of allergen-specific IgE and IgG antibodies were determined in serum samples from 60 atopic and 11 normal dogs by means of commercially available ache/MiamiImageURL/B6WWR-4D8W9G1-10-2/0?wchp=dGLbVzW-zSkWA"" alt=""Image"" align=""absbottom"" border=""0"" height=10 width=39> test kits and a panel of 33 allergens. In the atopic population, IgE antibodies were most commonly identified with a specificity for Dermatophagoides farinae (78·3 per cent of affected dogs), D pteronyssinus (61·6 per cent), mould mix (25 per cent) and house dust (19 per cent), whereas the most frequently detected IgG antibodies had a specificity for D farinae (38·3 per cent), D pteronyssinus (33·3 per cent), mould mix (33·3 per cent), insect mix (16·6 per cent) and meadow fescue (16·6 per cent). The IgG subclass profile of allergen-specific antibodies was determined for five representative allergens from the panel. The IgG response to D farinae and D pteronyssinus was dominated by IgG4 antibodies, although lower levels of IgG2, and IgG3 and IgGl D pteronyssinus antibodies were also detected. The IgG response to Timothy grass was predominantly within the IgGI and IgG4 subclasses. IgG subclass selection in the response to mould mix and insect mix was broader, with relatively low level reactions from all four subclasses. The data suggest a degree of IgG subclass restriction in the Immoral immune response of canine atopy which may be dependent upon the nature of the allergen.