TY - JOUR A1 - Marre, R. A1 - Hacker, Jörg A1 - Wood, G. A1 - Schmidt, G. T1 - Oral vaccination of rats with live avirulent Salmonella derivatives expressing adhesive fimbrial agents of uropathogenic Escherichia coli N2 - The avirulent Salmonella typhimurium F885 was transformed with a plasmid carrying the cloned S fimbriae genes of a uropathogenic Escherichia coli. The resulting transformant (F885-1) produced efficiently E. coli S fimbriae and was used for live oral vaccination of rats. For comparison rats were immunized subcutaneously with isolated S fimbriae. Both routes of vaccination resulted in a significant lgG antibody response to S fimbriae. In addition live oral vaccination induced a serum lgA response against S fimbriae. After transurethral infection of rats with a S fimbriae producing E. coli a 10-fold reduction of bacterial counts in the kidney was observed in rats orally vaccinated with F885-1 as compared to unvaccinated controls. This study suggests that the avirulent Salmonella F885 may be used as a fimbrial antigen carrier for oral vaccination against renal infections. KW - Infektionsbiologie KW - Avirulent Salmonella KW - S-Fimbriae KW - Uropatbcgenie E. coli Y1 - 1989 UR - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/5267 UR - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-59559 ER -