Extracellular matrix of dermal tissue (ECM)

The **extracellular matrix (ECM) of dermal tissue** is a complex, non-cellular network of proteins, glycoproteins, proteoglycans, and polysaccharides that fills the intercellular space of the skin’s dermal layer[2][3][7]. Its principal components include collagens (primarily type I and III), elastin, fibronectin, hyaluronan, and various proteoglycans and matricellular proteins[2][6][3]. The ECM provides critical **structural support**, maintains tissue architecture, and underpins the **mechanical stability** and elasticity of skin[2][3][6]. Beyond these physical roles, it **regulates a range of biological functions** including cell adhesion, migration, proliferation, and the storage and controlled release of growth factors crucial for tissue homeostasis, wound healing, and regeneration[1][2][5]. Dermal ECM is dynamically remodeled in physiological processes (growth, aging, repair) and in disease (e.g., chronic wounds, fibrosis, keloids, inflammatory skin disorders, and cancer metastasis)[2][5][6]. ECM composition and biomechanical properties are highly **tissue- and condition-specific** and are altered significantly in pathological states[2][5]. Disruption of dermal ECM integrity can lead to clinical challenges such as impaired healing or aberrant scarring[6][2]. The ECM is not a single molecular target for therapeutics; instead, interventions usually target its components, structure, or modulating enzymes rather than the matrix as a whole. **Note:** - "Extracellular matrix of dermal tissue" is **not a single molecule, receptor, or canonical drug target**, but a structural and functional ensemble in connective tissue[2][3][7]. - The group term does not fit standard definitions of molecular drug targets such as receptors or enzymes, but its components can individually be therapeutic targets or diagnostic biomarkers[2][6]. - This entry is marked **is_incorrect: true** due to the lack of specificity as a discrete molecular entity.

Other names

Extracellular matrix (ECM)Dermal ECMSkin extracellular matrix

Modulation or replacement of ECM structure (e.g., providing scaffold in wounds); Regulation of cell-matrix interactions (e.g., inhibiting enzymes that degrade ECM)