Cell surface expression of CCL18 receptor(s) on mature differentiated DCs from nonallergic and allergic subjects. (A) Baseline expression of CCL18R evaluated on the surface of mature _GMDCs, _GM/CCL18DCs, and _GM/IL-4DCs from nonallergic (NA) and allergic (A) subjects expressed as mean fluorescence intensity (MFI) ± SEM for n = 6 subjects. ^#P < .05 (A vs NA). (B) Representative histograms of CCL18R staining on mature differentiated DCs from NA and A subjects. Values in the quadrant indicate the MFI/percentage of positive cells after subtraction of the control protein (unfilled black line).