IL-4 DC and IL-10 DC exhibit no obvious differences in their phenotype. IL-4 DC and IL-10 DC and mature splenic DC (sDC) coexpressed Ox62 and CD68, whereas macrophages generated in the presence of M-CSF (5 μg/ml) were only positive for CD68. Broken lines indicate background staining obtained using an irrelevant isotype control. The first number represents the percentage of cells staining positive for the indicated marker and the second number represents the mean fluorescence intensity. The results shown are representative for 4 independent flow cytometric analyses. The antibodies were purchased from Serotec, Ltd, Oxford, United Kingdom, with the exception of HM40-3 and 24F (BD Biosciences, Heidelberg, Germany).