Abstract
It is well known that epidermal keratinocytes form a water-impermeable barrier at the skin surface. However, recent studies suggest that keratinocytes also have a variety of sensory systems for a wide range of environmental factors, including humidity, temperature, mechanical stress, and visible light. Receptor proteins, activated by these environmental factors, are expressed in keratinocytes. Interaction between keratinocytes and nerve fibers has also been reported. Moreover, a series of neurotransmitter receptors, which play key roles in information processing in the central nervous system, are expressed in keratinocytes. Thus, epidermal keratinocytes might have both sensory and information-processing functions at the surface of the body. In this chapter, I deal with these new aspects of epidermal keratinocytes and also discuss the hypothesis that epidermal keratinocytes serve as a functional interface between the body and the environment.
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Denda, M. (2012). Sensory Systems of Epidermal Keratinocytes. In: Lodén, M., Maibach, H. (eds) Treatment of Dry Skin Syndrome. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27606-4_6
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