Send to

Choose Destination
See comment in PubMed Commons below
Mediators Inflamm. 2011;2011:263216. doi: 10.1155/2011/263216. Epub 2011 Jul 31.

HPV16E6-dependent c-fos expression contributes to AP-1 complex formation in SiHa cells.

Author information

  • 1Department of Clinical Neuroscience Oral and Maxillofacial Functional Rehabilitation, University of Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0215, Japan.


To date, the major role of HPV16E6 in cancer has been considered to be its ability to inhibit the p53 tumor-suppressor protein, thereby thwarting p53-mediated cytotoxic responses to cellular stress signals. Here, we show that HPV16E6-dependent c-fos oncogenic protein expression contributes to AP-1 complex formation under oxidative stress in SiHa cells (HPV16-positive squamous cell carcinoma of the cervix). In addition, we examined the role of HPV16E6 in TGF-α-induced c-fos expression and found that the c-fos protein expression induced by TGF-α is HPV16E6 dependent. Thus, our results provide the first evidence that HPV16E6 contributes to AP-1 complex formation after both ligand-dependent and independent EGFR activation, suggesting a new therapeutic approach to the treatment of HPV-associated tumors.

[PubMed - indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Hindawi Publishing Corporation Icon for PubMed Central
    Loading ...
    Support Center