Skin tissue regeneration pathway

The "skin tissue regeneration pathway" refers to the complex series of molecular and cellular events triggered by skin injury, featuring the coordinated action of immune cells, keratinocytes, fibroblasts, endothelial cells, hair follicle stem cells, and other appendage-related cells[1][3][4]. This process involves overlapping stages—hemostasis, inflammation, proliferation, reepithelialization, tissue remodeling, and eventual maturation or scarring[1][4]. Key biological activities include migration, proliferation, differentiation, and coordinated secretion of cytokines, chemokines, growth factors, and extracellular matrix proteins. Intracellular and paracrine signaling mechanisms, such as Wnt, BMP, chemokine, and mechanotransduction pathways (e.g., via focal adhesion kinase), critically impact outcomes such as scarless healing versus fibrosis[2][5]. As a general biological process, it is foundational to wound healing and tissue regeneration medicine, but it does not denote a single molecular drug target[1][3][4][5].