“…In contrast to other studies in this field (Capone et al, 1984;Hagan et al, 1986; (Velders et al, 1995 (Velders et al, 1996). In agreement with Herlyn et al (1985), our results, as presented in Figure 2, (Velders et al, 1996) The requirement of accessory adhesions between effector and target for ADCC is not very clear, however the scope of the publications on the subject suggests their importance (Liesveld et al, 1991;Webb et al, 1991;Edwards et al, 1992; Kushner and Cheung, 1992 [owing to their chimerization using the same genes for the constant Ig chains (Sun et al, 1987;Velders et al, 1994)], it is the affinity of the antibody to the target antigen or the three-dimensional orientation of Fc tails that is of importance. From the results presented in Figure 4 we conclude that high MAb affinity, or a large number of antibody-antigen interconnections between effector and target cells, may well compensate the reducing effect on ADCC of the suppressed accessory interactions.…”