Figure 3. IgE cross-linking impairs monocyte phagocytic function.
A,B. Photomicrographs (A, grey=DIC, blue=DAPI, green=BODIPY-FL) and particle count per cell (B) of BODIPY-labeled bacteria phagocytosed by monocytes after 96 hr culture in indicated conditions (N=5). C. Fluorescence of internalized bacteria determined by flow cytometry for indicated conditions (N≥9). D. Effect of IL-10 neutralization on phagocytosis in indicated conditions (N=3). E. Internalization (CFU/Cell, left) of live bacteria after 48 hr culture; percent of internalized bacteria killed (right) after additional 16 hr incubation (N=4). * p<.05, ** p<.01, *** p<.001, NS p>.05 for αIgE vs. Media and IgG (C) or indicated comparisons (B,D,E).