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2 protocols using human epithelial growth factor

1

Endothelial Cell Culture and Characterization

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Pooled HUVEC (from 3 to 6 individual donors, Lonza, Cologne, Germany) and HUAEC (from 250 individual donors, PeloBiotech GmbH, Planegg, Germany) were cultivated in EGM-2 Bullet Kit containing endothelial cell culture medium supplemented with 2% (v/v) fetal bovine serum, vascular endothelial growth factor, basic fibroblast growth factor, human epithelial growth factor, insulin-like growth factor-1, hydrocortisone, heparin, ascorbic acid, gentamycin, and amphotericin B (Lonza) in a standard humidified incubator at 37 °C with 5% (v/v) CO2. Cells of passage 5 were seeded in 4-well PCA chamber slides (Sarstedt, Nürnbrecht, Germany) at a cell density of 15,000 cells/well with 1 mL medium per well, and cultivated for up to 7 days. Medium was exchanged at day 2 and day 4 of cultivation.
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2

Inflammatory Profile of Primary Keratinocytes

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Human primary adult keratinocytes were isolated from human donor surplus skin after plastic surgery. Cells from 8 different donors were used. Cells were maintained at 37°C in a humidified environment of 21% O 2 and 5% CO 2 (balance N 2 ) in keratinocyte KBM-gold medium supplemented with human epithelial growth factor, bovine pituitary extract, transferrin, epinephrine, insulin and hydrocortisone (Lonza). Cells were pre-equilibrated in supplement-free medium for 48 hours. For the characterization of the inflammatory profile, cells were treated with 50ng/ml TNF-α for 24 hours. After treatment, the medium was collected for measurement of secreted cytokines/chemokines. For the analysis of the effects of hydroxylase inhibitors on skin inflammation in vitro, cells were treated with 1mM DMOG or 100μM JNJ1935 for 1 hour and then treated with TNF-α. For HIF transcription studies the cells were transfected with the HRE-gaussia-
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