Recent work has revealed that enterohaemorrhagic Escherichia coli encodes a two-component system, termed FusKR, which responds to fucose and represses expression of virulence genes. Furthermore, a representative member of the microbiota appears to cleave fucose from host glycans, indicating that the microbiota and EHEC may act in concert to suppress virulence gene expression.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.cub.2012.12.027 | DOI Listing |
PLoS One
December 2024
Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana, United States of America.
Nucleic-acid biosensors have emerged as useful tools for on-farm detection of foodborne pathogens on fresh produce. Such tools are specifically designed to be user-friendly so that a producer can operate them with minimal training and in a few simple steps. However, one challenge in the deployment of these biosensors is delivering precise sample volumes to the biosensor's reaction sites.
View Article and Find Full Text PDFJ Bacteriol
December 2024
Department of Microbiology, The Ohio State University, Columbus, Ohio, USA.
Unlabelled: The ability to treat infections is threatened by the rapid emergence of antibiotic resistance among pathogenic microbes. Therefore, new antimicrobials are needed. Here we evaluate mannitol-1-phosphate 5-dehydrogenase (MtlD) as a potential new drug target.
View Article and Find Full Text PDFGut Pathog
December 2024
Department of Microbiology and Immunology, Galveston, TX, USA.
Background: Enterohemorrhagic Escherichia coli (EHEC), a group of enteric pathogenic bacteria that is a major cause of human diarrheal disease, must interact with the diverse intestinal microbiome during colonization and subsequently overcome the environmental challenges to survive and cause disease. While this relationship, and how the microbiome modulates infection of EHEC, has been studied, it is less understood how the microbiome is impacted during treatment for an EHEC infection. One area that is notably lacking in knowledge is how vaccination can impact the intestinal microbiome composition, and therefore, influence vaccine efficacy.
View Article and Find Full Text PDFBMC Microbiol
December 2024
Antimicrobial Resistance and Phage Biocontrol Research Group (AREPHABREG), Department of Microbiology, School of Biological Sciences, Faculty of Natural and Agricultural Sciences, North‒West University, Private Mail Bag X2046, Mmabatho, 2735, South Africa.
The increase in multi drug resistance (MDR) amongst food-borne pathogens such as Escherichia coli O157:H7, coupled with the upsurge of food-borne infections caused by these pathogens is a major public health concern. Lytic phages have been employed as an alternative to antibiotics for use against food-borne pathogens. However, for effective application, phages should be selectively toxic.
View Article and Find Full Text PDFGut Microbes
December 2025
TEDA Institute of Biological Sciences and Biotechnology, Nankai University, TEDA, Tianjin, P. R. China.
Enterohemorrhagic (EHEC) O157:H7 is an important intestinal pathogen that causes severe foodborne diseases. We previously demonstrated that the genomic island-encoded regulator LmiA activates the locus of enterocyte effacement (LEE) genes to promote EHEC O157:H7 adherence and colonization in the host intestine. However, whether LmiA is involved in the regulation of any other biological processes in EHEC O157:H7 remains largely unexplored.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!