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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-36674

Yang, J; Meyer, Michael; Müller, A-K; Böhm, F; Grose, R; Dauwalder, T; Verrey, F; Kopf, M; Partanen, J; Bloch, W; Ornitz, D M; Werner, S (2010). Fibroblast growth factor receptors 1 and 2 in keratinocytes control the epidermal barrier and cutaneous homeostasis. Journal of Cell Biology, 188(6):935-952.

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Fibroblast growth factors (FGFs) are master regulators of organogenesis and tissue homeostasis. In this study, we used different combinations of FGF receptor (FGFR)-deficient mice to unravel their functions in the skin. Loss of the IIIb splice variants of FGFR1 and FGFR2 in keratinocytes caused progressive loss of skin appendages, cutaneous inflammation, keratinocyte hyperproliferation, and acanthosis. We identified loss of FGF-induced expression of tight junction components with subsequent deficits in epidermal barrier function as the mechanism underlying the progressive inflammatory skin disease. The defective barrier causes activation of keratinocytes and epidermal gammadelta T cells, which produce interleukin-1 family member 8 and S100A8/A9 proteins. These cytokines initiate an inflammatory response and induce a double paracrine loop through production of keratinocyte mitogens by dermal cells. Our results identify essential roles for FGFs in the regulation of the epidermal barrier and in the prevention of cutaneous inflammation, and highlight the importance of stromal-epithelial interactions in skin homeostasis and disease.


55 citations in Web of Science®
59 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Center for Integrative Human Physiology
04 Faculty of Medicine > Institute of Physiology
07 Faculty of Science > Institute of Physiology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Deposited On:16 Dec 2010 09:39
Last Modified:05 Apr 2016 14:17
Publisher:Rockefeller University Press
Publisher DOI:10.1083/jcb.200910126
Related URLs:http://jcb-dataviewer.rupress.org/jcb/browse/2055
PubMed ID:20308431

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