Aim of this study was to investigate QS of Escherichia coli Nissle 1917 (Mutaflor). Results: While E. coli Nissle is producing AI-2 in a density dependent manner, no AI-1 was produced. To study the effect of AI-2 in the DSS (dextran sulphate sodium) induced mouse model of acute colitis, we silenced the corresponding gene luxS by intron insertion.
Escherichia coli Nissle 1917 (EcN) is a non-pathogenic E. coli strain that confers health benefits without known harmful effects on various hosts and is marketed under the trade name Mutaflor (Sonnenborn and Schulze 2009).First isolated by Dr. Alfred Nissle during World War I, EcN has proven to be effective at competing with other enteropathogens and has been used as a treatment for diarrheaHowever, some Gram-negatives are also used as probiotics. The best example of this group is Escherichia coli Nissle 1917 (EcN) ( Nissle 1959 ), also known as "Mutaflor," which has been used in Germany for many years in the treatment of chronic constipation ( Mollenbrink and Bruckschen 1994) and colitis ( Schutz 1989 ).
The aim of the present study was to examine the effect of rifaximin and/or Mutaflor (Escherichia coli Nissle 1917, EcN) administration on the healing of acetic acid-induced colitis. Methods. Colitis was induced in male Wistar rats by rectal enema with 3.5% acetic acid solution.
E. coli strains and genotyping. Six E. coli strains (Escherichia coli (Migula 1895) Castellani and Chalmers 1919) were randomly chosen and purchased from the Japan Collection of Microorganisms at the microbe division of the RIKEN BioResource Research Center (Tsukuba, Japan), which is participating in the National BioResource Project of the MEXT, Japan.E. coli Nissle 1917 strain was obtained- Φоջիρинт типеκուβи
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