Figure 4.

Skin cancer-associated oncogenes found from RNA-seq analysis. The mRNA levels were presented as transcript per million calculated from raw count normalized by gene length and sequencing depth in different groups (BaP/TPA versus Control) at 5, 20 and 26 weeks. Data are shown as mean ± SD of three independent experiments. Welch’s unpaired t-test was used to determine the significant differences between the two groups. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001 show significant differences between the control and BaP/TPA groups.