Cytokine array analysis of PBMC cytokine production after treatment with Clerodendrum polysaccharide fractions CSP-AU1 and CSP-NU1. Human PBMCs were incubated for 24 hr with 250 μg/ml of CSP-AU1 (open bars) and CSP-NU1 (hatched bars), or 200 ng/ml of LPS (solid bars), and production of cytokines in the supernatants was evaluated using a MultiAnalyte ELISArray kit. Cytokine expression is shown as fold increase compared to background (PBS-treated cells). The data are presented as mean ± SD of duplicate samples from one experiment that is representative of two independent experiments. Statistically significant differences (* p<0.05) between PBS-treated cells and cells treated with polysaccharide fractions or LPS are indicated.