IL13 and allergic respiratory disease: Whereas IL-13 (a typical marker cytokine of respiratory allergy) was induced upon re-stimulation of mDC:TC co-cultures with rArt v 1, co-administration of rFlaA:Artv1 or rFlaA:Artv1hyp, but not with both proteins provided separately or as a mixture, was able to dose dependently and significantly suppress rArt v 1-induced IL-13 secretion (Fig. 3).