Pathogenic and non-pathogenic Escherichia coli colonization and host inflammatory response in a defined microbiota mouse model

Autor: Zachary R. Stromberg, Angelica Van Goor, Graham A. J. Redweik, Meghan J. Wymore Brand, Michael J. Wannemuehler, Melha Mellata
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Disease Models & Mechanisms, Vol 11, Iss 11 (2018)
Druh dokumentu: article
ISSN: 1754-8403
1754-8411
DOI: 10.1242/dmm.035063
Popis: Most Escherichia coli strains in the human intestine are harmless. However, enterohemorrhagic E. coli (EHEC) is a foodborne pathogen that causes intestinal disease in humans. Conventionally reared (CONV) mice are inconsistent models for human infections with EHEC because they are often resistant to E. coli colonization, in part due to their gastrointestinal (GI) microbiota. Although antibiotic manipulation of the mouse microbiota has been a common means to overcome colonization resistance, these models have limitations. Currently, there are no licensed treatments for clinical EHEC infections and, thus, new tools to study EHEC colonization need to be developed. Here, we used a defined microbiota mouse model, consisting of the altered Schaedler flora (ASF), to characterize intestinal colonization and compare host responses following colonization with EHEC strain 278F2 or non-pathogenic E. coli strain MG1655. Significantly higher (P
Databáze: Directory of Open Access Journals