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Phosphorylated SMAD2/SMAD3 and IL-8 in the supernatant. Concentrations are normalized to the cell number. Resulting protein concentrations are shown as m±sd from triplicates of two experiments with three samples. Statistics: protein concentrations on different materials and time points were obtained via a two-way ANOVA with a Tukey's multiple comparison test; one symbol = p < 0.05; two symbols = p < 0.01; four symbols = p < 0.0001.
