Immunogenicity of serum HLA antigens in allogeneic combinations

Immunization of patients with chronic renal insufficiency with plasma from selected donors elicited lymphocytotoxic antibodies. Analysis of these antibodies with Fab2 blocking assays showed that they are directed to HLA-A,B and to Ia-like antigens. These results indicate that serum HLA antigens are immunogenic in allogeneic combinations.