Intestinal epithelial cell surface attachment factors (IEC-SAFs)

Intestinal epithelial cell surface attachment factors (IEC-SAFs) represent a broad category of host molecules, including glycoproteins, glycolipids, and cell adhesion molecules, that serve as docking sites for both commensal and pathogenic microorganisms. These factors, such as Carcinoembryonic antigen-related cell adhesion molecules (CEACAMs), integrins, and various glycans, are critical for the initial colonization and subsequent invasion of the intestinal mucosa by pathogens like Enterotoxigenic Escherichia coli (ETEC) and Salmonella. In a healthy state, they facilitate the stable maintenance of the gut microbiota and mediate essential cell-cell signaling and barrier functions. In disease contexts, particularly enteric infections and inflammatory bowel diseases, these factors are exploited by pathogens to bypass host defenses or are dysregulated, leading to chronic inflammation. Therapeutic strategies targeting these factors often focus on anti-adhesion molecules or competitive inhibitors designed to prevent pathogen binding without disrupting the beneficial commensal population. This target entry is considered 'incorrect' in a strict sense because it describes a functional class of diverse molecules rather than a single, specific protein or receptor.

Other names

Enterocyte attachment receptorsIntestinal adhesion moleculesHost cell surface receptorsBacterial attachment factorsIntestinal glycoconjugates

Inhibition of microbial adhesion to host cell surface receptors, competitive binding to attachment sites, or modulation of host cell surface expression of adhesion molecules.