PMN specifically adhere to immobilized CAR. As detailed in Materials and Methods, 24-well nontissue culture plates were coated with CAR-GST, JAML-GST, and GST alone, respectively. After blocking with BSA, PMN (5 × 105) were added to wells and allowed to adhere for 30 min at 37°C. Adhesion was also tested in the presence of anti-JAML or control serum. (A) PMN are strongly adherent to CAR-GST coated wells but not JAML-GST– or GST-coated wells and binding was blocked by anti-JAML. Bar, 50 μm. (B) Quantitative analysis of PMN adhesion observed in A. Data represent mean ± SE of three independent experiments performed in duplicate (p < 0.01).