title: IgG1 subclass restriction of oligoclonal measles virus-specific IgG antibodies in patients with subacute sclerosing panencephalitis and in a patient with multiple sclerosis.
abstract: A restriction to the IgG1 subclass was demonstrated for measles virus-specific IgG antibodies isolated from the sera of five patients with subacute sclerosing panencephalitis, from the cerebrospinal fluid of one of the patients, and from brain extract from a sixth patient. A predominance of IgG1 was also observed in measles antibodies isolated from the serum and brain extract of a patient with multiple sclerosis. Evidence is presented that the IgG1 restriction is associated with the occurrence of oligoclonal measles antibodies in these patients. A similar restriction to the IgG1 subclass was not observed in measles antibodies isolated from the serum of a measles-convalescent child or from pooled normal serum and IgG.
mesh_terms: D000914:Antibodies, Viral / Q000302:isolation & purification; D000918:Antibody Specificity; D006801:Humans; D007074:Immunoglobulin G / Q000302:isolation & purification; D008459:Measles virus / Q000276:immunology*; D009103:Multiple Sclerosis / Q000276:immunology*; D013344:Subacute Sclerosing Panencephalitis / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D007074:Immunoglobulin G