title: Serological response to the P fimbriae of uropathogenic Escherichia coli in pyelonephritis.
abstract: Uropathogenic Escherichia coli strains isolated from four patients with pyelonephritis were characterized by their O:K serotype, hemolysin production, mannose-resistant hemagglutination, and the serotype of the P fimbriae. These P fimbriae were serotyped with specific monoclonal antibodies. Serum samples from the patients were analyzed for the presence of specific antibodies to the P fimbriae. In all cases antifimbrial antibodies were found, strongly suggesting that these P fimbriae are expressed in vivo. However, the antibodies in the patient sera were not able to inhibit the mannose-resistant hemagglutination. This finding suggests that these antibodies react with the fimbrial components and not with the minor components which are responsible for adhesion.
mesh_terms: D000907:Antibodies, Bacterial / Q000096:biosynthesis; D000911:Antibodies, Monoclonal; D001422:Bacterial Adhesion; D003429:Cross Reactions; D004926:Escherichia coli / Q000276:immunology; D004927:Escherichia coli Infections / Q000276:immunology*; D005260:Female; D010861:Fimbriae, Bacterial / Q000276:immunology*; D006460:Hemolysin Proteins / Q000096:biosynthesis; D006801:Humans; D011704:Pyelonephritis / Q000276:immunology* / Q000382:microbiology; D012703:Serotyping
chemical_list: D000907:Antibodies, Bacterial; D000911:Antibodies, Monoclonal; D006460:Hemolysin Proteins