Figure 2. Specificity of KGF signal on stimulated and non stimulated media supernatants. Human Dermal Neonatal Fibroblasts cells were cultured in HGDMEM supplemented with 10% fetal calf serum, 2 mM L-glutamine, 100 U/mL penicillin and 100 µg/mL streptomycin. Cells were cultured for 2 days at 37°C in the presence or absence of 1 µg/mL of FGF-basic with or without 10 ng/mL of TNF-alpha. The concentrations of KGF were measured after loading neat media on the plate and were then interpolated from a KGF calibration curve on sample diluent 25BS. The mean concentration of KGF (FGF-7) was determined to be undetectable in non stimulated media, 413 pg/mL in FGF-basic stimulated media and 1,016 pg/mL in FGF-basic+TNF-alpha stimulated media.