The effect of PS-G on the phagocytic capacity of MD-DCs. Immature MD-DCs (1 × 106 cells/1 ml per well) were incubated for 24 h either with Der p 1 (1 μg/ml) or PS-G (10 or 25 μg/ml) or both. DCs stimulated with LPS (100 ng/mL) were positive maturation controls. Cells were then incubated with FITC-dextran for 1 h at 4°C (dotted lines) or 37°C (solid lines). Values shown in the flow cytometry profiles are the MFI indexes. One representative of three independent experiments is shown.