The engineered probiotic Escherichia coli Nissle 1917 (EcN) is expected to be employed in the diagnosis and treatment of various diseases. However, the introduced plasmids typically require antibiotics to maintain genetic stability, and the cryptic plasmids in EcN are usually eliminated to avoid pla …
methods have found that probiotic E. coli Nissle 1917 (EcN) may inhibit biofilm formation of other E. coli strains and outcompete their growth. However, the exact mechanism of biofilm inhibition has yet to be elucidated. Using the EcN and E. coli K12 MG1655 (K12) strains, we investigated biofilm inhibition using a biofilm quantification assay. The well-known probiotic strain Escherichia coli Nissle 1917 (EcN) was tested in vitro to determine its probiotic effects on growth, Shiga toxin (Stx) gene expression, Stx amount and associated cytotoxicity on the most important EHEC strains of serotype O104:H4 and O157:H7.

Maybe the best characterized probiotic is the E. coli strain Nissle 1917 (EcN), which is also licensed as a pharmaceutical in several countries for the treatment of diseases affecting the digestive tract such as diarrhea and colitis ulcerosa. 14 It seems also to be very safe after oral application taking into account its use as a drug for

There have been extensive genome sequencing studies for Escherichia coli strains, particularly for pathogenic isolates, because fast determination of pathogenic potential and/or drug resistance and their propagation routes is crucial. For laboratory E. coli strains, however, genome sequence information is limited except for several well-known strains. We determined the complete genome sequence
probiotics may fit the definition of LBPs and can be developed as Escherichia coli Nissle 1917 (EcN) has been used as a probiotic since its isolation over 100 years ago21. In its

Here, we studied the effect of the probiotic strain E. coli Nissle 1917 (EcN) administered orally to young pigs at two concentrations (10(9) and 10(11)CFU/d for 21 days) on the gut-associated lymphatic tissue. This probiotic strain was shown recently to reduce recurrence of inflammation in ulcerative colitis patients.

Despite the great progress of current bacterially based biotherapeutics, their unsatisfying efficacy and underlying safety problems have limited their clinical application. Herein, inspired by probiotic Escherichia coli strain Nissle 1917, probiotic-derived outer membrane vesicles (OMVs) are found to serve as an effective therapeutic platform for the treatment of inflammatory bowel disease
Our results show a robust engineered probiotic that produces 73.4 ± 47.2 nmol and 149 ± 123.6 nmol of ILA per gram of fecal and cecal matter, respectively, three days after colonization in a mouse model. In addition, hereby is reported an engineered-probiotic-related increase of ILA in the systemic circulation of the treated mice. zNXdm.
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