FIGURE 6.
Calycosin inhibits LPS-induced NLRP3 inflammasome activation in BMDMs. BMDMs cells were treated with the different concentrations of calycosin in the presence of 500 ng/ml LPS and 5 mM ATP for 24 h. (A) The levels of IL-1β and IL-18 in the supernatant were determined by ELISA assay. (B) The protein levels of NRLP3 inflammasome were determined by western blot. The quantitative densitometry of the protein expressions was determined by Image J software. Densitometric values were normalized to β-actin. (C) The effect of CA on the interaction among NLRP3, ASC, and caspase 1 were determined by co-immunoprecipitation assay. (D) The caspase 1 activity in BMDMs was determined by a commercial kit. Data are presented as means ± SEM. *p < 0.05; **p < 0.01 vs. the LPS+ATP group.