DLX5 and neoplasm: Figure 5 shows the DNA copy number and mRNA expression levels of DLX5 and RUNX2. For the cell lines, the PCR and microarray data correlated well, except for the DNA copy number of RUNX2 in IOR/OS14 and DLX5 in KPD, where the PCR data showed normal copy number and not gain. All the tumour samples showed normal copy number of the genes, but showed increased expression of both DLX5 and RUNX2, at similar levels as the cell lines showing over-expression.