Abstract
Epidermal keratinocytes have been recognized to form the water-impermeable structure and this barrier function is critical, especially for terrestrial animals. However, recent findings have dramatically changed the picture of epidermal keratinocytes, placing them at the forefront of the sensory system. Keratinocytes contains environmental sensors and a sensory information-processing system, and it generates a variety of hormones and neurotransmitters that influence whole-body states and emotions. Specifically, epidermal keratinocytes contain sensors of mechanical stress, temperature and chemical stimuli. Moreover, all the components of the hypothalamo-pituitary-adrenal (HPA) axis appear to be present in epidermal keratinocytes. These results suggest that the epidermis plays an important role in adapting whole-body physiology, and probably also emotional response, to changing environments.
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Denda, M. (2016). Sensing Environmental Factors: The Emerging Role of Receptors in Epidermal Homeostasis and Whole-Body Health. In: Wondrak, G. (eds) Skin Stress Response Pathways. Springer, Cham. https://doi.org/10.1007/978-3-319-43157-4_19
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DOI: https://doi.org/10.1007/978-3-319-43157-4_19
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