FIG. 4.

Flow cytometry analysis of expression of the chemokine receptor CCR5 using different monoclonal antibodies. AM were obtained by bronchoalveolar lavage and stained with the following FITC-conjugated monoclonal antibodies against CCR5: FAB180F, FAB181F, FAB182F, and FAB183F. AM were double stained with PE-labeled HLA-DR. The histograms represent the cells selected by this marker. IgG-matched control antibody is depicted by the dotted line. Shown is surface expression of representative samples from one individual for FAB180F (A), FAB181F (B), FAB182F (C), and FAB183F (D).