Effect of dexamethasone on Saos-2 FPR and FPRL-1 gene expression. Saos-2 cells were incubated for 2 and 24 h in the absence and presence of dexamethasone (0.01, 0.1, and 1 μM). Total RNA was then extracted and PCR performed for FPR (a) or FPRL-1 (b) gene expression. Autoradiogram of one representative experiment and densitometric analysis, normalized for corresponding GAPDH values, expressing the means of % referring to the control ± SEM of four independent experiments. P < 0.05, dexamethasone-treated vs. control cells.