The human antibody response to uropathogenic XXXX : a review.

@entity1 @entity793 @entity281 @entity2885 @entity2335 @entity293 @entity526
@entity293 caused by @entity526 are associated with a local and systemic antibody response. We have studied the serum and urine antibody responses to @entity526 in @entity1 and @entity1 with @entity2885 , @entity2335 , and asymptomatic @entity793 . Protein immunoblots consistently demonstrated serum antibody response to lipopolysaccharide (LPS). Anti-LPS antibody titres rose significantly and progressively when comparing acute with convalescent sera in those who have had their first @entity293 . For those with repeated @entity281 , high titre LPS antibodies were present and did not change significantly between acute and convalescent sera. Antibody responses to the major outer membrane proteins were present but did not differ significantly when compared with normal human serum. A specific anti-P pilus antibody response was demonstrated by immunoblotting. Anti-P pilus antibody was quantitated using ELISA and the titres were found to be very low. Three other techniques were also used to demonstrate the presence of serum antibody. Antibody was detectable by immunofluorescence, but the antigenic specificity of the antibody was more difficult to ascertain. Immunoprecipitation was more specific for determining the nature of the antibody response. Lastly, immunoelectron microscopy was valuable in demonstrating antipilus and antiflagellar antibodies. Immunoelectron microscopy and immunoblotting provided evidence that human antiserum to P pili was modestly cross-reactive and could bind heterologous P pili. These studies indicated that the major antibody response in @entity1 occurs after @entity2885 and is directed against LPS. An anti-P pilus response is frequently present and is cross-reactive to some extent with other P pili.
