Abstract:
:Proteus mirabilis is commonly associated with complicated UTI and expresses several virulence factors, including MR/P fimbriae. In the present study mice were immunised nasally with MrpA, the structural subunit of MR/P, with or without CT as a mucosal adjuvant. The animals were then challenged with P. mirabilis and induction of specific serum and urine IgG and IgA, IFN-gamma production and bacterial kidney and bladder colonization were assessed. MrpA-immunised mice exhibited significant induction of serum IgA and urine IgA and IgG. MrpA/CT-immunised mice showed both significant serum and urine IgA and IgG production. Only this group showed significant IFN-y production. Both groups of animals had significant decrease in bacterial colonization of kidneys but not of bladders. No correlation between specific antibody induction in serum and CFU decrease was observed in any group of animals. Our results suggest that a mucosal adjuvant (CT) in the urinary tract enhanced humoral and cytokine response although it did not influence the degree of protection against UTI provided by MrpA. Further studies are necessary to understand immune modulation in the urinary tract.
journal_name
Microbiol Immunoljournal_title
Microbiology and immunologyauthors
Scavone P,Rial A,Umpierrez A,Chabalgoity A,Zunino Pdoi
10.1111/j.1348-0421.2009.00111.xsubject
Has Abstractpub_date
2009-04-01 00:00:00pages
233-40issue
4eissn
0385-5600issn
1348-0421journal_volume
53pub_type
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