PHI treatment suppresses the inflammatory response in LPS-induced BEAS-2B cells. (A) The chemical structure of PHI. (B) The effects of PHI on the viability of BEAS-2B cells were detected via an MTT assay. *P<0.05 vs. control. (C) The effects of PHI on the viability of BEAS-2B cells induced by LPS were detected via an MTT assay. ***P<0.001 vs. control; ##P<0.01 vs. LPS group. (D-F) The expression levels of inflammatory factors were measured by ELISA. ***P<0.001 vs. control; #P<0.05, ###P<0.001 vs. LPS group. (G) The levels of inflammation-associated proteins were detected via western blotting. ***P<0.001 vs. control; #P<0.05, ##P<0.01, ###P<0.001 vs. LPS group. PHI, phillygenin; LPS, lipopolysaccharide; cox-2, cyclooxygenase-2; iNOS, inducible nitric oxide synthase.