NFKB1 and colorectal carcinoma: However, it was found that, just like the tumorous tissue sections, the expression of NF-κB mRNA in non-tumorous tissue sections was higher in CRC-Sg+ve group than in CRC-Sg-ve group (P < 0.05) but was not higher in CRC than in adenoma (P > 0.05) (Table 3).