The oxidative burst in leukocytes was measured in heparinized whole blood from WT and nfkb1−/− mice using Phagoburst kit (Glicotope Biotechnology) according to manufacturer’s instructions. Using flow cytometry this kit allows the detection of percentage of phagocytic cells which produce reactive oxidants (conversion of DHR123 to R123) and their enzymatic activity (amount of R123 per cell) against several stimuli opsonized bacteria (E. coli), Phorbol 12-myristate 13-acetate (PMA) and N-Formyl-Met-Leu-Phe (fMLP).
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