OMIP-023: 10-Color, 13 antibody panel for in-depth phenotyping of human peripheral blood leukocytes

THIS panel was developed and optimized to determine the phenotype and activation of 15 different leukocyte subtypes in one run. Leukocytes are identified by expression of CD45 (leu-1) pan leukocyte antigen. Neutrophil (CD16), monocyte (CD14), T(CD3), B-lymphocyte (CD19), and NK-cell (CD16 and CD56) markers are employed. Special gating strategy is used for subtyping of granulocytes (e.g., eosinophils, neutrophils, basophils). For further T-cell phenotyping, CD4/CD8 markers are used for differentiation of four T-cell subtypes, CD25/CD127 for regulatory T cell identification and CD3/CD16/CD56 for NKT-cells, additionally. Special gating strategies have been developed for B-cell, NK-cell, and monocyte subtyping. For detection and analysis of activation also further activation markers (HLA-DR, CD38, CD25, CD127, and CD69) are analyzed. This panel has been established for analysis of human RBC-lysed EDTAtreated whole blood samples and for cord blood (Table 1). Since the starting material is fresh EDTA-treated blood, dead cells are probably not an issue. Thus to save one channel for specific staining the vitality staining was not used in the panel.