Expression of a truncated form of MK (t-MK) mRNA, which lacks exon 3 encoding the N terminus, has been well documented in various tumours, including colon (Miyashiro et al, 1996), breast (Miyashiro et al, 1997), gastric (Aridome et al, 1998), and liver and kidney (Tao et al, 2007). This evidence concerns the gene MDK and neoplasm.