Mesenchymal stem cell therapy for wound healing: An update to 2022

The skin is an organ that performs complex functions of both the innate and adaptive immune sys-tems. It serves as the first physical barrier to protect the body from environmental factors. Skin also carries aesthetic value in people's desire for eternal youth. Skin lesions are often unwanted, causing open wounds that can be contagious or permit infection of the body, scars, skin aging, and loss of skin function, with long-term psychological consequences. The application of stem cell therapy based on mesenchymal stem cells (MSCs) is constantly developing in the field of skin regeneration, which is highly regarded as a therapy for patients suffering skin lesions from burns, deep wounds, cosmetic surgery, or genetic diseases. MSC therapy has shed light on groundbreaking treatments in immune, anti-inflammatory, and regenerative medicine, including for skin diseases. Addition-ally, the development of stem cells seems to limit skin aging. It is gradually becoming an integral technique at hospitals as a regular therapy for illness, as well as a cosmetic intervention. This review seeks to introduce the skin system and its related disorders; highlight the common characteristics and mechanisms of MSCs; and analyze updated clinical applications and experiments to date in MSC therapy for regenerative biomedicine and skin diseases.