Fig. 3.
Detection of cell surface sialoadhesin lectin activity on Mm1 cells using a multivalent 3′-sialylactosylated probe (3′-PAA-FITC). Cultured Mm1 cells, a murine macrophage cell line, were washed, untreated, Arthrobacter Ureafaciens(AU)/VC-sialidase treated, or AU/VC-sialidase treated followed by preincubation with the 3D6 adhesion-blocking MoAb, and stained with FITC-conjugated 3′-PAA. Staining was detected using single color flow cytometry (fluorescence-activated cell sorting [FACS] analysis).