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Review
. Mar-Apr 2004;8(2):90-6.
doi: 10.1007/s10227-004-0125-5. Epub 2004 May 3.

Role of Extracellular Adenosine Triphosphate in Human Skin

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Review

Role of Extracellular Adenosine Triphosphate in Human Skin

Aton M Holzer et al. J Cutan Med Surg. .

Abstract

Background: The nucleotide adenosine triphosphate (ATP) has long been known to drive and participate in countless intracellular processes. Extracellular ATP and its metabolite adenosine have also been shown to exert a variety of effects on nearly every cell type in human skin. Knowledge of the sources and effects of extracellular ATP in human skin may help shape new therapies for skin injury, inflammation, and numerous other cutaneous disorders.

Objective: The objective of this review is to introduce the reader to current knowledge regarding the sources and effects of extracellular ATP in human skin and to outline areas in which further research is necessary to clarify the nature and mechanism of these effects.

Conclusion: Extracellular ATP seems to play a direct role in triggering skin inflammatory, regenerative, and fibrotic responses to mechanical injury, an indirect role in melanocyte proliferation and apoptosis, and a complex role in Langerhans cell-directed adaptive immunity.

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