Fig. 1.
IFN-β prevents IL-3Rα down-regulation on cultured monocytes.
Monocytes incubated in medium alone or with IFN-β (1000 U/mL) were analyzed by flow cytometry for the expression of IL-3Rα (CD123). Thick lines show FACS profiles after staining with PE-conjugated anti-CD123 antibodies, and dotted lines, FACS profiles after staining with isotype-matched control IgG1. Data are from 1 of 3 representative experiments on different blood donors.