What role do stem cells play in skin regeneration?

Stem cells are pivotal in skin regeneration due to their ability to self-renew and differentiate into various cell types. In the epidermis, epidermal stem cells reside in the basal layer and hair follicles. These cells can produce keratinocytes, ensuring continuous renewal and repair of the epidermis. Recent advances in research have also highlighted the potential of induced pluripotent stem cells (iPSCs) in promoting skin regeneration and healing.