ABCC1 and cancer: Results of our Spearman correlation analysis revealed strong correlation between COL1A1 and metastasis markers, vimentin (VIM) (0.79 (p = 1.25 × 10−79)), snail (SNAI1) (0.75 (p = 6.21 × 10−68)), matrix metalloproteinase (MMP)2 (0.87 (p = 1.18 × 10−116)), MMP9 (0.40 (p = 8.29 × 10−16)), TWIST1 (0.67 (p = 6.53 × 10−50)) (Figure 4A), as well as markers of cancer stemness, CD144/PROM1 (0.47 (p = 1.56 × 10−21)), CD44 (0.39 (p = 3.03 × 10−15)), KLF4 (0.37 (p = 1.46 × 10−13)) and ABCC1 (0.50 (p = 1.39 × 10−24)) (Figure 4B).