NFKB1 and colorectal carcinoma: The aim of the present study was (i) to evaluate the NF‐κB signalling pathway gene expression in paired tumoral and peritumoral tissues from patients with CRC compared with normal colonic tissues by analysing the expression levels of 84 key transcripts, and (ii) to evaluate the expression levels of miRNAs targeting the most dysregulated genes as revealed by the case–control analysis.