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Transfected CHO cells are not efficient at phagocytosis compared with phagocytes. MDMφ, PMA-treated THP-1, transfected CHO, and control cells were incubated with increasing doses of FITC-labelled E. coli K-12 for 45 min. The cells were analyzed by flow cytometry, and the mean fluorescence for each condition is plotted. Error bars indicate standard deviation.
