FIG. 7.
VEGF release (A) and VEGF mRNA expression (B) in the investigated cultures. (A) Data are shown as the mean from three independent experiments. Error bars represents the 95% CI of a mean (n=9). The amount of VEGF released in HBDC monoculture compared with other type of culture was significantly higher (p<0,001, while there were no statistically significant differences between HUVEC monoculture and 1:1 or 1:4 coculture. Significance of the other differences are marked: *p<0.05 and ***p<0.001). Two-way ANOVA and post-hoc Tukey test has been performed. Initial percentage HUVEC:HBDC is shown at the x-axis. (B) VEGF mRNA expression was normalized to GAPDH. HBDC monoculture on day 1 was used as a relative control. Data are shown as the mean (n=18).Error bars represent the 95% CI of a mean. The results show data from three independent experiments (n=18). The Kruskal–Wallis test was used for statistical analysis of data. Initial percentage HUVEC:HBDC is indicated in the legend. VEGF, vascular endothelial growth factor.