Quantification of IL-6 and IL-12 secretion by BMDC treated with 250 nM cEC or EC for 60 min before stimulation with R837 (5 μg/ml; 18 h). Bars represent mean ± SEM from one of three independent experiments. **P < 0.01; ***P < 0.001; one-way ANOVA adjusted by Dunnett's multiple comparisons test. 