Helicobacter pylori cell surface and gastric mucosal surface

The Helicobacter pylori cell surface and gastric mucosal surface represent the complex biological interface where H. pylori colonizes the human stomach, involving a complex array of bacterial adhesins and host mucosal factors (PubMed: 12452936). This site is not a single molecular target but rather a biological environment where interactions between bacterial proteins like BabA and SabA and host glycans occur (UniProt: P0EDN3, G2J533). The gastric mucosal surface is protected by a mucus layer primarily composed of MUC5AC and MUC6 mucins, which H. pylori must penetrate to reach the underlying epithelium (PubMed: 15017016). Therapeutic agents such as bismuth subsalicylate and sucralfate act at this interface by forming a protective physical barrier and exerting direct antimicrobial effects on the bacterial cell surface (StatPearls: NBK537071). Chronic infection at this interface leads to persistent inflammation, which is a primary driver of peptic ulcer disease and gastric adenocarcinoma (NIH: H. pylori and Cancer). Consequently, this interface is a major focus for mucosal-protective and eradication therapies, although it lacks a single specific molecular identifier for drug screening.

Other names

Gastric mucosal barrierH. pylori-gastric interfaceGastric mucosal surface

Formation of a protective physical barrier over the gastric mucosa, inhibition of bacterial adhesion, and direct antimicrobial activity against H. pylori cell wall components (StatPearls: NBK537071, NBK540987).