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Flow cytometric analysis of CD66 expression on peripheral blood granulocytes. Whole blood was stained with either PE Mouse Anti-Human CD66 (Cat. No. 551480; solid line histogram), or PE Mouse IgG2a, κ Isotype Control (Cat. No. 555574; dashed line histogram). Erythrocytes were lysed with BD FACS™ Lysing Solution (Cat. No. 349202). The fluorescence histograms were derived from gated events with the forward and side light-scattering characteristics of viable granulocytes.
Flow cytometric analysis of CD66 expression on peripheral blood granulocytes. Whole blood was stained with either PE Mouse Anti-Human CD66 (Cat. No. 551480; solid line histogram), or PE Mouse IgG2a, κ Isotype Control (Cat. No. 555574; dashed line histogram). Erythrocytes were lysed with BD FACS™ Lysing Solution (Cat. No. 349202). The fluorescence histograms were derived from gated events with the forward and side light-scattering characteristics of viable granulocytes.
Flow cytometric analysis of CD66 expression on peripheral blood granulocytes. Whole blood was stained with either PE Mouse Anti-Human CD66 (Cat. No. 551480; solid line histogram), or PE Mouse IgG2a, κ Isotype Control (Cat. No. 555574; dashed line histogram). Erythrocytes were lysed with BD FACS™ Lysing Solution (Cat. No. 349202). The fluorescence histograms were derived from gated events with the forward and side light-scattering characteristics of viable granulocytes.
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The B1.1 monoclonal antibody binds to several glycosylphosphatidylinositol-anchored glycoproteins present on granulocytes and epithelial cells. As reported in the Sixth International Workshop and Conference on Human Leucocyte Differentiation Antigens, the B1.1 antibody recognized CD66a (CEACAM1), CD66c (CEACAM6), CD66d (CEACAM3) and CD66e (CEACAM5). CD66 antigens belong to the carcinoembryonic antigen (CEA) family of molecules that are closely related to the immunoglobulin superfamily of glycoproteins. Studies on CD66 molecules suggest a potential adhesion function in vivo. These molecules exhibit both homophilic and heterophilic adhesion. CEA family members may be involved in transmembrane signaling and activation of neutrophils.
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