Human skin progenitor cells (SKPs) (SKPs)

Human skin progenitor cells, particularly skin-derived precursors (SKPs), are a population of multipotent stem cells primarily located within the dermal papilla and connective tissue sheath of hair follicles (Toma et al., 2001, Nature Cell Biology). These cells are fundamental to skin homeostasis, wound repair, and the cyclical regeneration of hair follicles, possessing the capacity to differentiate into various lineages including keratinocytes, neurons, and adipocytes (Biernaskie et al., 2006, Journal of Neuroscience). In clinical research, they are targeted for the treatment of dermatological conditions such as androgenetic alopecia and chronic wounds, where their regenerative potential is harnessed to restore tissue integrity (Gurtner et al., 2008, Nature). While not a single molecular target, these cells are modulated by pharmacological agents like minoxidil, which is thought to stimulate hair follicle progenitors, and growth factors such as EGF and bFGF that promote cell migration and proliferation during healing (Messenger & Rundegren, 2004, British Journal of Dermatology; Wong et al., 2012, Journal of Investigative Dermatology). Despite their therapeutic promise, significant challenges remain regarding the risk of malignant transformation and the maintenance of stable differentiation states in clinical applications.

Other names

Skin-derived precursorsDermal progenitor cellsEpidermal stem cellsHair follicle stem cellsDermal papilla cellsMultipotent skin-derived stem cells

Stimulation of cellular proliferation and differentiation through the activation of intracellular signaling pathways such as Wnt/beta-catenin, MAPK/ERK, and Sonic hedgehog (Shh).