Extracellular matrix proteins and mucosal surfaces

The extracellular matrix (ECM) proteins and mucosal surfaces constitute the structural and functional framework of the body's internal linings, such as those in the gastrointestinal, respiratory, and urogenital tracts (Frantz et al., 2010; Johansson & Hansson, 2016). This complex network includes proteins like collagen, laminin, and fibronectin, as well as specialized glycoproteins like mucins, which together maintain tissue integrity and provide a protective barrier against external threats (Frantz et al., 2010; Westerlund & Korhonen, 1993). In disease states, the degradation or pathological remodeling of these proteins can lead to barrier dysfunction, facilitating pathogen invasion, chronic inflammation, and fibrotic tissue accumulation (Johansson & Hansson, 2016; Westerlund & Korhonen, 1993). Therapeutic strategies often focus on protecting or restoring this interface; for instance, cytoprotective agents like sucralfate bind to exposed ECM proteins at ulcer sites to promote healing, while other treatments aim to block the adhesion of bacteria to the mucosal matrix (StatPearls, 2023; Westerlund & Korhonen, 1993). Understanding the interactions within this environment is crucial for developing treatments for conditions ranging from peptic ulcers and inflammatory bowel disease to respiratory infections and metastatic cancer (Johansson & Hansson, 2016).

Other names

Mucosal extracellular matrixECM-mucosal interfaceMucosal barrier proteinsExtracellular matrix of mucous membranes

Drugs targeting this environment typically act by forming a protective physical barrier over damaged mucosal surfaces, binding to exposed ECM proteins to prevent further injury, or inhibiting the adhesion of pathogenic microorganisms to the matrix (StatPearls, 2023; Westerlund & Korhonen, 1993).