Abstract
Cervical cancer in developed countries remains as a major concern on public health policies due to incidence and mortality rates. Persistent infection with high risk human papillomavirus is a necessary etiological agent in the progression to invasive cervical carcinoma. A proposed hypothesis is the association between more aggressive HPV variants and the risk to develop cervical cancer. In order to have a global perspective in terms of cellular transcripts and molecular pathways affected by HPV18 E6 intratype variants; we conducted a genome wide analysis of gene expression. Our results show that E6 derived from non-European variants are able to up-regulate cellular transcripts associated to the hallmarks of cancer; such as cell cycle, migration, Wnt pathway and mTor signaling. Moreover, we were able to show that HPV18 E6 from African variant had a major effect on cellular processes such as cell cycle and migration as confirmed by functional studies.
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