Figure 4. NO alters human neutrophil interactions with yeast. (A) The neutrophils plated onto fibronectin under the control conditions phagocytosed opsonized zymosan particles (dried yeast coated with serum) forming specific “cups” (white arrows) on the cell surface or bound yeast particles onto the cell surface (black arrows). (B) The neutrophils plated onto fibronectin in the presence of the NO donor diethylamine NONOate (1 mM) bound opsonized zymosan particles through TVEs.²⁶