Fig. (1) Graphical representation of the genes that were differentially expressed in at least two cell culture studies. In five of these studies, in vitro cell cultures were transfected with genomes of different HPV types: Thomas_HPV11 [37], normal human keratinocytes transfected with HPV11; Kaczkowski_HPV11, Kaczkowski_HPV16 and Kaczkowski_HPV45 [29], HaCaT cells transfected with HPV11, HPV16 and HPV45, respectively; Chang_HPV31 [53], normal human keratinocytes from foreskin tissue transfected with wild type HPV31 genome. W12 was obtained from a low-grade cervical lesion and was naturally infected with HPV16 [34].The upregulated genes are depicted in orange, downregulated in green, and not differentially expressed in white. Interestingly, oncogene ABL2 was found upregulated in high-risk types HPV16, HPV31 and HPV45. The annotations of the genes are included as Supplementary Table 1.