To this end, it is of particular interest that RNA sequencing revealed CYP1A1 mRNA over-expression in CRC liver metastases as compared to normal colonic epithelium (http://www.ebi.ac.uk/gxa/experiments/E-GEOD-50760?geneQuery=ENSG00000140465&queryFactorValues=g2_g1&_specific=on). This evidence concerns the gene CYP1A1 and colorectal carcinoma.