Open Access<p>The regenerative potential of skin and the immune system</p>
Author(s) -
Anna Tsepkolenko,
В. О. Цепколенко,
Sabyasachi Dash,
А. Мишра,
Augustinus Bader,
Alexander Melerzanov,
Shibashish Giri
Publication year - 2019
Publication title -
clinical, cosmetic and investigational dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 35
ISSN - 1178-7015
DOI - 10.2147/ccid.s196364
Subject(s) - immune system , microbiology and biotechnology , biology , immunology , lymphatic system , population , innate lymphoid cell , epidermis (zoology) , cd8 , innate immune system , medicine , anatomy , environmental health
Skin has the natural ability to heal and replace dead cells regulated by a network of complex immune processes. This ability is conferred by the population of resident immune cells that act in coordination with other players to provide a homeostatic environment under constant challenge. Other than providing structure and integrity, the epidermis and dermis also house distinct immune properties. The dermal part is represented by fibroblasts and endothelial cells followed by an array of immune cells which includes dendritic cells (DCs), macrophages, mast cells, NK-cells, neutrophils, basophils, eosinophils, αβ T lymphocytes, B-cells and platelets. On the other hand, the functionally active immune cells in the epidermis comprise keratinocytes, DCs, NKT-cells, γδ T cells and αβ T cells (CD4+ and CD8+). Keratinocytes create a unique microenvironment for the cells of the immune system by promoting immune recognition and cellular differentiation. T lymphocytes exhibit tissue-specific tropism toward the epidermis and the lymphatic drainage system important for their function in immune regulation. This diversity in immune regulators makes the skin a unique organ to overcome pathogenic or foreign invasion. In addition, the highly coordinated molecular events make the skin an attractive model to understand and explore its regenerative potential.