Figure 1.
GPI-anchor-deficient phenotype of alveolar macrophages and dendritic cells. (A) Alveolar macrophages (AM; left) or dendritic cells (DC; middle) cultured for 6 weeks were stained with mAb anti-HSA. Peripheral blood leukocytes gated for lymphocytes (PBL) were stained with mAb anti-CD48 (right), which is expressed on both T and B lymphocytes. Shown are fluorescence intensity plots of cells from littermate control (thin dotted lines) or LysMCre/Pig-aflox mice (bold lines), and antibody controls (dashed lines). (B-C) Responses to LPS. Control (wild type [WT]; •) or GPI-anchor-deficient (knock out [KO]; ○) AMs (B) or DCs (C) were stimulated with LPS; mean concentrations of TNF-α released of at least 3 independent experiments are shown.