TK1 and non-small cell lung carcinoma: Finally, there were 10 target genes that had a differential relative mRNA expression (difference in ΔΔCt > 2) comparing patients with early and locally advanced stages of NSCLC were compared (ASPM, BIRC5, TOP2A, TK1, ORC6L, DLGAP5, KIAA0101, PRC1, CEP55, and DTL) (Figure 2).