NF-κB drives a proinflammatory pathway that is constitutively activated and promotes invasion in oral squamous cell carcinomas (SCC).18 In this report, we have characterized the frequency of infiltrating haematopoietic cells in the oral epithelia of both wild-type and K5-IKKβ transgenic mice. This evidence concerns the gene NFKB1 and oral cavity squamous cell carcinoma.