| Literature DB >> 16778986 |
Ole E Sørensen1, Dharma R Thapa, K Markus Roupé, Erika V Valore, Ulf Sjöbring, Alice A Roberts, Artur Schmidtchen, Tomas Ganz.
Abstract
We found that sterile wounding of human skin induced epidermal expression of the antimicrobial (poly)peptides human beta-defensin-3, neutrophil gelatinase-associated lipocalin, and secretory leukocyte protease inhibitor through activation of the epidermal growth factor receptor. After skin wounding, the receptor was activated by heparin-binding epidermal growth factor that was released by a metalloprotease-dependent mechanism. Activation of the epidermal growth factor receptor generated antimicrobial concentrations of human beta-defensin-3 and increased the activity of organotypic epidermal cultures against Staphylococcus aureus. These data demonstrate that sterile wounding initiates an innate immune response that increases resistance to overt infection and microbial colonization.Entities:
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Year: 2006 PMID: 16778986 PMCID: PMC1479426 DOI: 10.1172/JCI28422
Source DB: PubMed Journal: J Clin Invest ISSN: 0021-9738 Impact factor: 14.808