Allergic inflammation is divided into 3 subtypes according to the different cytokines secreted by cd4 Th cell Th0、 Thl and th2。 nvestigations have shown that allergic reactions like asthma are mediated by Th2 cells There is an increase or predominance of Th2 or its cytokines. The resulting airway inflammation could be classified into the following two types 1. IgE mediated and T lymphocyte dependent pthway 2. Nonlge mediated and T lymphocyte dependent pathwayAllergic inflammation Is divided into 3 subtypes according to the different cytokines secreted by CD4 Th cell: Th0、Th1 and Th2。Investigations have shown that allergic reactions like asthma are mediated by Th2 cells. There is an increase or predominance of Th2 or its cytokines. The resulting airway inflammation could be classified into the following two types: 1. IgE mediated and T lymphocyte dependent pthway 2.NonIgE mediated and T lymphocyte dependent pathway