Extracellular matrix of the wound bed (ECM)

The **extracellular matrix of the wound bed** is the dynamic, three-dimensional network of structural proteins (primarily collagens I, III, IV), proteoglycans (such as hyaluronic acid and heparan sulfate), adhesive proteins (fibronectin, laminin), glycosaminoglycans, elastin, and associated growth factors found in wounded tissue[1][2][3]. It serves as a scaffold for cell migration and tissue repair during all stages of wound healing, orchestrating cellular activity via both mechanical support and biochemical signaling. In acute wounds, the ECM is rapidly remodeled to guide healing, but in chronic wounds, the ECM is often degraded, disorganized, or unable to function as a scaffold, impairing healing. Therapeutic strategies often focus on restoring or replacing this matrix with bioengineered, decellularized, or synthetic scaffolds to stimulate proper wound regeneration[1][2][3]. The "wound bed extracellular matrix" is a *biological environment* and not a conventional molecular target but is central to the pathology and repair of tissue wounds. This entry is not a standard molecular target, and cannot be mapped to a discrete protein, receptor, or gene. The term should be clarified or replaced with the specific component of the ECM if molecular targeting is intended.

Other names

extracellular matrix (ECM) in woundswound ECMwound matrix

Bioengineered ECM scaffolds act by providing a provisional scaffold, recruiting and supporting cell infiltration, modulating protease and inflammatory activity, and promoting angiogenesis and granulation tissue formation