In general, mRNA expression levels are lower in cervical cancer cells lines than in HaCaT cells, except for SOX17 and MYOD1 in SiHa cells, MGMT in C-33A cells and AJAP1, SOX17 and MYOD1 in HeLa cells (Additional file 4: Fig. S3). This evidence concerns the gene AJAP1 and cervical carcinoma.