Mucosal and epithelial surface proteins

Mucosal and epithelial surface proteins represent a broad and heterogeneous category of molecules rather than a single, specific therapeutic target. This group encompasses a wide variety of protein classes, including mucins (e.g., MUC1, MUC2), cell adhesion molecules (e.g., cadherins, claudins), and various apical receptors or transporters found on the surface of epithelial tissues lining the respiratory, gastrointestinal, and urogenital tracts. These proteins are essential for maintaining the physical and chemical barrier between the internal environment and external pathogens, as well as facilitating selective transport and cell-to-cell communication. While individual members of this group—such as MUC1 in oncology or specific integrins in inflammatory bowel disease—are well-validated drug targets, the collective term is too broad for precise pharmacological intervention. Consequently, this entry is classified as incorrect for the purposes of specific target annotation, as it lacks the molecular specificity required for drug development and clinical application.

Other names

Mucosal surface proteinsEpithelial surface antigensMucosal barrier proteins

Not applicable as this is a broad category of proteins rather than a single therapeutic target.