coli Nissle 1917-based therapeutics Jason P. Lynch,1,2 Lisa Goers,1,2 and Cammie F. Lesser 1,2,3,* Engineered microbes are rapidly being developed for the delivery of therapeutic modalities to sites of disease. Escherichia coliNissle 1917 (EcN), a genetically tractable probiotic with a well-established human safety record, is emerging as a Erythritol facilitates the growth of engineered probiotic E. coli Nissle 1917 in SIF. a) Schematic workflow of sample preparation, incubation, and measurement. The mixtures were incubated at 37 °C without shaking. b) Effect of inoculation on cell growth. Escherichia coli strain Nissle 1917 (EcN) is a well-known probiotic isolated by Alfred Nissle from the faeces of a soldier who was not infected during the outbreak of Shigellosis [ 6 ]. EcN is not pathogenic due to the lack of virulence factor genes in its genome when compared to pathogenic E. coli [ 7 ]. Probiotic microorganisms have been defined as live microbes that, when administered in adequate amounts, confer a health benefit on the host [4, 5]. A particularly well-investigated probiotic strain is Escherichia coli Nissle 1917 (serotype O6:K5:H1) (EcN). Here, Escherichia coli Nissle 1917 (ECN), a kind of oral probiotic, was genetically engineered to overexpress catalase and superoxide dismutase (ECN-pE) for the treatment of intestinal inflammation. Background Escherichia coli Nissle 1917 (EcN) is a probiotic used in the treatment of intestinal diseases. Although it is considered safe, EcN is closely related to the uropathogenic E. coli strain CFT073 and contains many of its predicted virulence elements. Thus, it is relevant to assess whether virulence-associated genes are functional in EcN. One of these genes encodes the secreted In this study, E.coli Nissle 1917 (EcN), an intestinal probiotic, was utilized as a targeted transport vector to deliver p53 and Tum-5 protein to tumor hypoxic regions. The tumor-targeting characteristics of EcN were investigated using luciferase Lux CDABE operon, and the results demonstrated that EcN could specifically accumulate in the solid This study systematically expanded the EcN-based toolbox, enabling EcN as a powerful platform for more applications and developing EcN native integrase-mediated genetic engineering capabilities and establishing an in vitro cell-free protein synthesis system. Escherichia coli Nissle 1917 (EcN) is a probiotic microbe that has the potential to be developed as a promising chassis for synthetic .

e coli nissle 1917 probiotic