Journal
TRENDS IN PHARMACOLOGICAL SCIENCES
Volume 25, Issue 11, Pages 563-568Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tips.2004.09.007
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Funding
- NIAMS NIH HHS [AR 47652, R01 AR047652] Funding Source: Medline
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Several inflammatory skin conditions, including atopic dermatitis (AD) and psoriasis, are exacerbated by stress. Recent evidence suggests that crosstalk between mast cells, neurons and keratinocytes might be involved in such exacerbation. Mast cells are distributed widely in the skin, are present in increased numbers in AD and are located in close proximity to substance P- or neurotensin-containing neurons. Corticotropin-releasing factor (CRF), its structurally related peptide urocortin (Ucn) and their receptors are also present in the skin and their levels are increased following stress. Human mast cells synthesize and secrete both CRF and Ucn in response to immunoglobulin E receptor (FcepsilonRI) crosslinking. Mast cells also express CRF receptors, activation of which leads to the selective release of cytokines and other proinflammatory mediators. Thus, we propose that CRF receptor antagonists could be used together with natural molecules, such as retinol and flavonoids, to inhibit mast cell activation and provide new therapeutic options for chronic inflammatory conditions exacerbated by stress.
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