Gastrointestinal microbiota and intestinal mucosa

The gastrointestinal microbiota and intestinal mucosa represent a complex symbiotic ecosystem essential for human health and homeostasis. The microbiota consists of trillions of microorganisms that assist in nutrient metabolism, vitamin synthesis, and the education of the host immune system (Thursby & Juge, 2017). The intestinal mucosa serves as a critical physical and immunological barrier, preventing the entry of harmful pathogens and toxins into the systemic circulation (Okumura & Takeda, 2017). Disruptions to this interface, often involving microbial dysbiosis and compromised barrier permeability, are linked to the development of inflammatory bowel disease, irritable bowel syndrome, and metabolic disorders (Vancamelbeke & Vermeire, 2017). Pharmacological interventions often target this system by using antibiotics to eliminate pathogens, probiotics to restore healthy microbial populations, or anti-inflammatory agents to stabilize the mucosal lining. Advanced therapies like fecal microbiota transplantation (FMT) are increasingly used to treat recurrent infections by restoring a diverse and functional microbial community. Monitoring this system involves the use of biomarkers such as fecal calprotectin for inflammation and zonulin for barrier integrity. Overall, maintaining the balance between the gut microbiota and the mucosal barrier is a primary goal in treating chronic gastrointestinal and systemic inflammatory conditions.

Other names

Gut microbiomeIntestinal barrierGut-mucosal interfaceIntestinal floraMucosal immune system

Modulation of microbial composition, enhancement of epithelial barrier integrity, and regulation of mucosal immune signaling.