Antibody-dependent and spontaneous lymphocytotoxicity of blood mononuclear cells from 10 patients with chronic renal failure was studied before and after haemodialysis in xenogeneic chicken erythrocyte and allogeneic K-562 test systems. The originally impaired antibody-dependent and spontaneous lymphocytoxicity of uraemic patients significantly improved following haemodialysis. Both pre- and post-haemodialysis uraemic sera strongly inhibited the antibody-dependent and spontaneous cytotoxicity of autologous and of healthy control lymphocytes.
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