Fibrinogen-cleavage products and TLR4 promote the generation of programmed cell death 1 ligand 2(PD-L2)+ dendritic cells in allergic asthma

Inhaled protease allergens preferentially trigger Th2-mediated inflammation in allergic asthma. The role of dendritic cells (DCs) on the induction of Th2 cell responses in allergic asthma has been well documented; however, the mechanism by which protease allergens induce Th2-favorable DCs in the airway remains unclear.

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