Gastric mucosal layer glycoproteins

The gastric mucosal layer glycoproteins consist mainly of secreted, high-molecular-weight mucins, with Mucin-5AC and Mucin-6 being the principal components in the stomach. These gel-forming, O-glycosylated proteins are secreted by epithelial cells to create a thick, viscoelastic barrier atop the gastric epithelium[3][6][5]. This layer protects the stomach lining from corrosive acid, digestive enzymes, pathogens, and mechanical friction caused by food. The structure and glycosylation pattern of these mucins are dynamic and can be altered in diseases like gastritis, gastric ulcer, Helicobacter pylori infection, and gastric cancer[3][6][4]. Although drugs may influence mucin secretion or the integrity of the mucus barrier, these glycoproteins themselves are not typically direct molecular drug targets. This entity is not a classical drug target but refers to a physiological barrier composed of mucin family glycoproteins, most prominently Mucin-5AC and Mucin-6[3][6][5].

Other names

Gastric mucinsGastric mucus glycoproteinsMucin-6 (MUC6)MUC5ACMUC6

Not applicable as a direct target. Drugs may increase mucin secretion or stabilize mucus gel indirectly[5]