Figure 3. Cytokine production by peritoneal macrophages.
Peritoneal macrophages from naïve mice were treated for 4 hrs with 1 μg/ml of LPS prior to addition of LT-IIa, LT-IIb or LT-IIc. After 20 hrs of incubation, the amounts of cytokines in the culture supernatants were determined. Data are reported as arithmetic means; error bars denote one standard error of the mean (n = 3). Key: statistical difference between groups denoted by crossbars at P < 0.01 (**), at P < 0.001 (***); ns, not significantly different between groups denoted by crossbars.