title: Autologous antibodies to meningioma cell surface antigens.
abstract: Sera of 32 patients with meningioma were tested for reactivity to cell surface antigens of autologous meningioma cells with protein-A assay (PA), immune adherence assay (IA), and anti-C 3-mixed hemadsorption assay (C3-MHA). Antibodies against autologous meningioma could be detected in 6/32 patients by PA, in about half the patients by IA and in almost all patients by C3-MHA with titers ranging from 1:2 to 1:28. Only the serum reactivity detected by C3-MHA was high enough for analysis of the specificity of the reaction by absorption tests. By absorption with a panel of autologous, allogeneic and heterologous cells we were unable to demonstrate a meningioma-specific antigen. Most autologous sera detected oncofetal antigens. Serum reactivity to autologous meningioma showed no correlation to antibodies to SV-40.
mesh_terms: D000912:Antibodies, Neoplasm / Q000032:analysis*; D000951:Antigens, Neoplasm / Q000276:immunology*; D000954:Antigens, Surface / Q000276:immunology*; D006801:Humans; D008577:Meningeal Neoplasms / Q000276:immunology*; D008579:Meningioma / Q000276:immunology*; D013539:Simian virus 40 / Q000276:immunology
chemical_list: D000912:Antibodies, Neoplasm; D000951:Antigens, Neoplasm; D000954:Antigens, Surface