The effects of RU24858, mometasone and dexamethasone on eosinophil cytokine production. (A) IL-8 and (B) MCP-1. Ionomycin was used to stimulate the IL-8 and MCP-1 production in cells. IL-8 and MCP-1 were analyzed by ELISA based methods. Values are the mean ± S.E.M., n = 6. Results are expressed as % of stimulated eosinophils. * Indicates P < 0.05, ** P < 0.01 and *** P < 0.001 as compared with the respective control in the absence of glucocorticoids. # Indicates P < 0.05, ## P < 0.01 and ### P < 0.001 as compared with RU24858 (1 μM).