Figure 2C shows expression fold changes in the AC and CP samples. COL1A2 showed an increase expression in CPs (9.68 ± 15.07) in comparison to ACs (1.40 ± 1.25). KRT19 levels also were highly incremented in cancer individuals (26.61 ± 45.46) related to healthy donors (1.21 ± 0.78). These differences were significant in both groups, yielding a p-value < 0.0001 for COL1A2 and a p-value = 0.0031 for KRT19 (Figure 2C). This evidence concerns the gene COL1A2 and cancer.