Adhesion of uPAR-transfected BAF-3 cells on VN. The adhesion of BAF-3 cells transfected with uPAR-sense or uPAR-antisense cDNA as indicated was performed in response to 50 μmol/L Zn²⁺ or 50 nmol/L uPA, respectively, in the absence (▩) or presence of 20 μg/mL of MoAb R3 against uPAR (▨). Data represent the mean ± SEM (n = 3) of a typical experiment. Similar results were obtained in three separate experiments.