Necrotic and denatured extracellular matrix and wound debris proteins

Necrotic and denatured extracellular matrix and wound debris proteins represent the non-viable proteinaceous material that accumulates in chronic and acute wounds. This material, often referred to as eschar or slough, consists of denatured collagen, fibrin, and other cellular remnants that have lost their biological function due to ischemia, infection, or trauma (StatPearls, Wound Debridement, 2023). In the context of wound healing, these proteins act as a physical barrier to re-epithelialization and provide a niche for bacterial colonization and biofilm formation (Wound Repair and Regeneration, 2013). Therapeutic intervention focuses on enzymatic debridement, where exogenous proteases are applied to selectively digest these denatured proteins without harming healthy tissue. By removing this debris, the wound environment is optimized for granulation tissue formation and subsequent closure (Journal of Wound Care, 2019). Common agents targeting this substrate include collagenase and bromelain-based concentrates, which break down the structural integrity of the necrotic mass (FDA, Santyl Prescribing Information; EMA, NexoBrid Summary of Product Characteristics).

Other names

Necrotic tissueEscharSloughDevitalized tissueDenatured extracellular matrixWound debrisNon-viable tissue

Enzymatic proteolysis and digestion of denatured extracellular matrix components and necrotic debris to facilitate wound bed preparation and promote healing.