Modern Concepts of Skin Stem Cells And Their Role In Epidermal Regeneration Covering The Latest Research On Stem Cell Niches, Their Activation Mechanisms And Applications In Tissue Engineering And Skin Transplantation

Аннотация

Skin stem cells play a key role in maintaining homeostasis and regeneration of the epidermis, ensuring continuous renewal of the skin and restoration of damaged areas. The article discusses modern concepts of the morphological and functional features of skin stem cell niches, as well as the mechanisms of their activation and differentiation. The latest research aimed at using these cells in tissue engineering and transplantation technologies, which open up new prospects for the treatment of skin diseases and injuries, is highlighted. Particular attention is paid to biomedical approaches to managing regenerative processes using stem cells to improve the effectiveness of therapy and create artificial skin substitutes. Keywords: Skin stem cells, epidermis, regeneration, stem cell niches, cell activation, tissue engineering, skin transplantation, differentiation, skin restoration. and interactions with surrounding cells and the Introduction: The skin is the largest organ of the human extracellular matrix. body and performs many vital functions, including barrier protection from external influences, Modern methods of molecular biology, cell participation in the immune response, temperature visualization and genetic analysis allow us to better regulation and perception of sensory signals. The main understand the mechanisms of activation of skin stem layer of the skin responsible for renewal and cells in response to damage and their role in dynamic restoration is the epidermis - a multi-layered regeneration processes. Disturbances in the epithelium that is constantly renewed throughout life functioning of these cells are associated with various due to the activity of stem cells. pathologies, including chronic wounds, psoriasis, and skin cancer. Skin stem cells are a specialized population pool of cells with a high capacity for self-reproduction and In addition, the study of skin stem cells is important for multifaceted differentiation. They provide the development of tissue engineering, a promising regeneration and homeostasis maintenance of the field aimed at creating bioengineered skin substitutes epidermis, playing a key role in wound healing and and effective transplantation methods. The use of stem restoration of damaged skin areas. These cells are cells in regenerative medicine opens new horizons for localized in various specialized microenvironments - the treatment of burns, wounds, as well as genetic and niches, such as the basal layer of the epidermis, hair autoimmune skin diseases, improving the quality of life follicles and sebaceous glands. The niche of patients. microenvironment maintains the stem properties of This article will review current understanding of the cells and regulates their proliferation and morphology and functional characteristics of skin stem differentiation through complex signaling pathways cells, their niches, activation mechanisms, and role in American Journal Of Biomedical Science & Pharmaceutical Innovation 28 https://theusajournals.com/index.php/ajbspi American Journal of Applied Science and Technology (ISSN: 2771-2745) epidermal regeneration. Particular attention will be culturing and differentiating skin stem cells, allowing paid to the latest advances in tissue engineering and the creation of artificial skin substitutes that are close clinical application of these cells in transplantology. in structure and function to natural skin. Cellular technologies, including the use of mesenchymal stem Purpose of the study cells and induced pluripotent stem cells ( iPSCs ), have To study modern concepts of skin stem cells, their shown high efficiency in regenerating damaged tissue niches and activation mechanisms, and to assess the and reducing inflammatory responses. prospects for their use in epidermal regeneration and Clinical studies show promise for the use of stem cells tissue engineering. in the treatment of burns, chronic wounds and