IgM and IgA in addition to IgG autoantibodies against FceRIa are frequent and associated with disease markers of chronic spontaneous urticaria

Chronic spontaneous urticaria – An autoimmune disease?

The identification of the causes of chronic spontaneous urticaria (CSU) is difficult. The recognition of functional autoantibodies against FcεRI and/or against IgE in some patients with CSU led to the concept of autoimmune etiology of the disease. Clinical and...