Pathogenic intestinal bacteria and intestinal epithelium

The term Pathogenic intestinal bacteria and intestinal epithelium refers to the complex biological interface where enteric pathogens interact with the host's mucosal lining. The intestinal epithelium serves as a critical physical and immunological barrier, utilizing tight junctions to prevent the translocation of bacteria into the systemic circulation (StatPearls, 2024). Pathogenic bacteria, such as Salmonella and Escherichia coli, employ virulence factors to adhere to and invade these epithelial cells, often triggering an inflammatory cascade (Nature Reviews Microbiology, 2021). This interaction is the primary site of action for various therapeutic interventions, including non-systemic antibiotics like Rifaximin and probiotics intended to restore microbial balance (NIH, 2023). Because this entry describes a multi-component biological system rather than a single molecular entity, it is classified as a system-level interaction rather than a discrete therapeutic target (PubMed, 2022). Understanding this relationship is essential for treating enteric infections and managing chronic conditions like inflammatory bowel disease where barrier integrity is compromised.

Other names

Gut-pathogen interfaceIntestinal host-pathogen interactionEnteric bacterial infectionIntestinal mucosal barrier

Inhibition of bacterial protein synthesis or DNA replication, disruption of bacterial cell membranes, and competitive exclusion by beneficial microbes to protect the epithelial barrier.