CADM1 and neoplasm: A separate comparison of CADM1 gene expression in 3 normal keratinocyte (KJ, KV, KY) and 8 established SqCC cell lines (A431, SCC9, SCC12b, SCC13, SCC15, SCC27, SCC66, SCC71) revealed significant (>80%) or complete loss of CADM1 in 6 of 8 tumour cell lines compared with controls (Supplemental Figure 1).