'Gefitinib (GF), the tyrosine kinase inhibitor (TKI) targeting epidermal growth factor receptor, initiates lung #inflammation through the NLR family pyrin domain containing 3 (NLRP3) inflammasome. However, the molecular targets and mechanisms underlying the inflammatory action of GF remain unknown. In this study, we identified mitochondrial Src family kinases (mSFKs) as key determinants of GF-induced #NLRP3 #inflammasome activation.'