The antibody-antigen interaction varies as maintained by the nature of immune cells. Actually, the two types of immune cells name are: B-cells and T-cells different in terms of medium essential for the corresponding antibody-antigen communication. B-cells respond to antigens free in resolution whereas T-cells do so along with the assist of accessory cells.
The interaction of immune system along with antigens is an encounter whether antibody and immune cells remove the antigens. A detailed study of the working of immune systems or IS, one can refer previous section.