NFKB1 and colorectal carcinoma: The immunofluorescent staining results showed that the relative density of NF-κB p65 nuclear expressions were notably stronger in Schwann cell (Co-HCT-116) or Schwann cell (Co-HT-29) compared with SCs (p < 0.01) (Figures 3D, E), which indicated the activation of the NF-κB signaling pathway in SCs after being co-cultured with CRC cells.