Extracellular matrix and skin surface

The extracellular matrix (ECM) and skin surface constitute a multi-component biological environment rather than a single molecular target. The skin surface, specifically the stratum corneum, acts as a critical permeability barrier, while the ECM is a dynamic network of macromolecules such as collagen, proteoglycans, and glycoproteins that provide structural integrity and biochemical cues to surrounding cells (Source: PMC6010379, StatPearls). This environment is central to the pathogenesis of various conditions, including atopic dermatitis, where barrier function is compromised, and fibrotic disorders, where ECM deposition is excessive (Source: NIH). Pharmacological agents targeting this area include topical barrier-repairing lipids and enzymes like collagenase that degrade specific matrix components (Source: PubChem). However, because the term encompasses a broad range of distinct proteins and physical layers, it is considered a physiological site or compartment rather than a specific, canonical therapeutic target.

Other names

Dermal extracellular matrixSkin barrierIntegumentary surfaceCutaneous matrixStratum corneum and dermal scaffold

Drugs interacting with this environment typically function by restoring physical barrier integrity, modulating the hydration of the stratum corneum, or enzymatically degrading specific structural proteins like collagen or hyaluronic acid to treat fibroproliferative or restrictive conditions.