Fig. 2.

Rituximab induces homotypic adhesion of DHL4 but not BJAB cells. Exponentially growing DHL4 or BJAB cells were plated in presence or absence of 10 μg/ml rituximab or control antibody daclizumab. Cells were examined microscopically 24 h later. a DHL4 + daclizumab, b DHL4 + rituximab, c BJAB + daclizumab, d BJAB + rituximab. The results are representative of at least five experiments.