The relationship of D. pteronyssinus allergic component sIgE and sIgG(4 )in house dust mite allergic rhinitis or/and allergic asthma patients

Allergy and asthma proceedings(2023)

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Objective: House-dust mite sensitization is an important cause of allergic asthma and/or rhinitis in southern China. This study aimed to analyze the immune effect and relationship between the Dermatophagoides pteronyssinus components specific immunoglobulin E (sIgE) and sIgG(4).Methods: The serum levels of sIgE and sIgG4 to D. pteronyssinus allergen components Der p 1, 2, 3, 5, 7, 10, and 23 were detected in 112 patients with allergic rhinitis (AR) and/or allergic asthma (AA).Results: Overall, Der p 1 had the highest positive rate of sIgE (72.3%), followed by Der p 2 (65.2%) and Der p 23 (46.4%). Meanwhile, the highest positive rates of sIgG4 were for Der p 2 (47.3%), Der p 1 (33.0%), and Der p 23 (25.0%). The patients with AR and AA had a higher positive rate (43.4%) of sIgG(4) than that in the patients with AR (42.4%) and the patients with AA (20.4%; p = 0.043). In patients with AR, the positive rate of sIgE in Der p 1 (84.8%) was higher than that in sIgG(4) (42.4%; p = 0.037), but the positive rate of sIgG(4) in Der p 10 (21.2%) was higher than that in sIgE (18.2%; p < 0.001). Most of the patients were positive for sIgE and sIgG(4) of Der p 2 and Der p 10 at the same time. However, positive results for sIgE alone were just found in Der p 7 and Der p 21. Optimal scale analysis showed that Der p 2, Der p 7, and Der p 21 sIgG(4) were closely related to AR and AA (Cronbach a = 0.917).Conclusion: Herein, the D. pteronyssinus allergen components showed different characteristics among the patients with AR, patients with AA, and patients with AR and AA in southern China. Thus, sIgG(4 )may be play an important role in allergic reactions.
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