title: Human immunoglobulin G subclass immune response to outer membrane antigens in meningococcal group B vaccine.
abstract: The immunoglobulin G (IgG) subclass distribution of antibodies against the major outer membrane proteins from serotype 2a Neisseria meningitidis in human vaccinees was studied by immunoblotting. The volunteers received two doses of a noncovalent complex of group B polysaccharide and outer membrane material from the same meningococcal strain. Six weeks after the first vaccination the antibodies mounted against the class 1 and 5 proteins belonged mainly to the IgG1 and IgG3 subclasses. However, the binding of IgG3 to the class 5 proteins decreased markedly in serum samples taken after 25 weeks. Antibody binding to the serotype-specific class 2 protein was dependent on renaturation of the antigen by a dipolar ionic detergent (R. E. Mandrell and W. D. Zollinger, J. Immunol. Methods 67:1-11, 1984). The immune response against this protein showed more individual variation and consisted of IgG1 or IgG3 or both, often combined with IgG4.
mesh_terms: D000942:Antigens, Bacterial / Q000276:immunology*; D000954:Antigens, Surface / Q000276:immunology; D016667:Bacterial Capsules; D001425:Bacterial Outer Membrane Proteins / Q000276:immunology*; D001428:Bacterial Vaccines / Q000276:immunology*; D006801:Humans; D007118:Immunoassay; D007074:Immunoglobulin G / Q000096:biosynthesis* / Q000276:immunology; D022401:Meningococcal Vaccines; D009345:Neisseria meningitidis / Q000276:immunology*; D011135:Polysaccharides, Bacterial / Q000276:immunology; D014611:Vaccination
chemical_list: D000942:Antigens, Bacterial; D000954:Antigens, Surface; D001425:Bacterial Outer Membrane Proteins; D001428:Bacterial Vaccines; D007074:Immunoglobulin G; D022401:Meningococcal Vaccines; D011135:Polysaccharides, Bacterial; C039455:capsular polysaccharide, meningococcal group B