Figure 5. Elevated Bfl-1 expression upon allergen provocation in birch-pollen allergic patients (A) and in lesions of atopic dermatitis (AD) and psoriasis patients (PSO) (B).

An enzymatical staining for tryptase followed by an immunohistochemical staining of Bfl-1 was performed. The results are presented as the percentage of mast cells expressing Bfl-1.