Skin tissue repair pathways

Skin tissue repair pathways refer to a complex network of molecular, cellular, and biochemical processes activated following skin injury for the purpose of restoring tissue integrity. Unlike a single protein or receptor, these pathways comprise a coordinated sequence of events including hemostasis, inflammation, proliferation, reepithelialization, neovascularization, and tissue remodeling[1][2][3][5]. The repair process involves interactions among keratinocytes, fibroblasts, endothelial cells, immune cells, stem/progenitor cells, extracellular matrix proteins, and growth factors such as PDGF, FGF, EGF, HGF, and TGF-β[2][3][4]. Signaling through these factors regulates cell migration, proliferation, angiogenesis, and matrix remodeling. The failure of any component can result in pathological outcomes such as non-healing wounds, excessive scarring, or chronic inflammation. Wound healing can be impacted by intrinsic factors like aging or diabetes and extrinsic factors such as infection or environmental stress[5][2]. Pharmacologic and regenerative therapies target these pathways to improve clinical outcomes in various dermatologic, diabetic, and post-surgical wound settings, but no single molecule or receptor defines "skin tissue repair pathways"—the term refers to the sum of many processes and mediators[2][3][4][6]. *Note: "Skin tissue repair pathways" is not a discrete molecular target, receptor, or protein, but rather a collective term for the numerous pathways, cells, factors, and molecular events involved in skin wound healing and repair[2][3][4].*

Other names

Skin wound healing pathwaysWound repair pathwaysCutaneous tissue repair mechanisms

Promotion of keratinocyte proliferation and migration Enhancement of angiogenesis through growth factors Modulation of inflammatory cytokines Regulating differentiation and apoptosis of fibroblasts and myofibroblasts Remodeling of extracellular matrix proteins