title: Increased levels of IgG subclasses specific for Pseudomonas aeruginosa exoenzyme and polysaccharide antigens in chronically infected patients with cystic fibrosis.
abstract: IgG subclass levels to Pseudomonas aeruginosa alginate, alkaline proteinase, elastase and exotoxin A in sera of healthy adults, non-infected and infected cystic fibrosis patients were investigated by enzyme linked immunosorbent assay. Whereas healthy adults and non-infected cystic fibrosis patients revealed mostly negative IgG subclass levels to the four antigens, infected cystic fibrosis patients had significantly elevated IgG1, IgG2, IgG3 and IgG4 levels to both the protein antigens as well as the polysaccharide antigen. The study does not support previous findings of an impaired natural IgG2 response to polysaccharide antigen. The study does not support previous findings of an impaired natural IgG2 response to polysaccharide in chronically infected cystic fibrosis patients.
authors: Hygiene-Institut, University of Tübingen, Federal Republic of Germany.
authors: A
authors: A
authors: Albus
authors: M
authors: M
authors: Saalmann
authors: H
authors: H
authors: Tesch
authors: S S
authors: SS
authors: Pedersen
authors: G
authors: G
authors: Döring
mesh_terms: D036002:ADP Ribose Transferases; D000293:Adolescent; D000328:Adult; D000464:Alginates; D000907:Antibodies, Bacterial / Q000276:immunology*; D001427:Bacterial Toxins; D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000150:complications / Q000276:immunology*; D010450:Endopeptidases / Q000276:immunology; D004797:Enzyme-Linked Immunosorbent Assay; D000939:Epitopes; D005098:Exotoxins / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G / Q000145:classification / Q000276:immunology*; D007223:Infant; D010196:Pancreatic Elastase / Q000276:immunology; D011135:Polysaccharides, Bacterial / Q000276:immunology*; D011552:Pseudomonas Infections / Q000150:complications / Q000276:immunology*; D011550:Pseudomonas aeruginosa / Q000201:enzymology / Q000276:immunology*; D012697:Serine Endopeptidases; D037521:Virulence Factors; D000097668:Pseudomonas aeruginosa Exotoxin A
chemical_list: D036002:ADP Ribose Transferases; D000464:Alginates; D000907:Antibodies, Bacterial; D001427:Bacterial Toxins; D010450:Endopeptidases; D000939:Epitopes; D005098:Exotoxins; D007074:Immunoglobulin G; D010196:Pancreatic Elastase; D011135:Polysaccharides, Bacterial; D012697:Serine Endopeptidases; D037521:Virulence Factors; D000097668:Pseudomonas aeruginosa Exotoxin A; C032923:microbial serine proteinases