Journal
JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY AND VENEREOLOGY
Volume 34, Issue -, Pages 43-48Publisher
WILEY
DOI: 10.1111/jdv.16641
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- Pierre Fabre Dermo-Cosmetique, Lavaur, France
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Background Inflammatory skin disorders, including atopic dermatitis (AD), associated pruritus and sensitive skin, have a complex multifactorial pathogenesis including neurogenic inflammation involving the release in blood and skin of neurotransmitters such as substance P (SP). Aims and Methods In vitromodels evaluated the effect of the original biological extract ofAquaphilus dolomiaeextract-G3 (ADE-G3) on cutaneous neurogenic inflammation. Results ADE-G3 significantly inhibited SP-stimulated release of IL-1 beta and TNF-alpha from normal human epidermal keratinocytes; significantly and dose-dependently inhibited SP-stimulated activation of human mast cells; significantly inhibited veratridine-stimulated release of SP from human sensory neurons; modulated expression of genes involved in lipid synthesis, innate immunity, corneocyte scaffolding and epidermal differentiation in a histamine-sensitized reconstructed human epidermis model; and, when applied topically toex vivohuman explants, inhibited IL-8 and histamine release. Conclusions Topically applied ADE-G3, once formulated, may improve neuro-inflammation in patients with inflammatory skin disorders.
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