The present study suggests that cigarette smoke exposure in part up-regulates antigen-induced mast cell activation associated with allergic asthma through TGF-β/pSmadL/NF-κB and AP-1 signaling pathway, and up-regulated mast cells induce the production of cytokines and collagen deposition, and then that it may exacerbate airway inflammation and tissue remodeling in mouse allergic asthma. The gene discussed is TGFB1; the disease is allergic asthma.