Pathogenesis of asthma Inhaled allergens Epithelial cells CCLTT SCF Mast cell TSLP histamine cysteinyl leukotrienes and CCLT and Dendritic L-9 CCL22 prostaglandin D, CCR4 Inno Smooth-muscle cell 」Tcel? Bronchoconstriction Antibody production CCR3 Eosinophil B cell Eosinophilic inflammationPathogenesis of asthma