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Repair of UV-induced thymine dimers is compromised in cells expressing the E6 protein from humanpapillomaviruses types 5 and 18

Giampieri, S; Storey, A; (2004) Repair of UV-induced thymine dimers is compromised in cells expressing the E6 protein from humanpapillomaviruses types 5 and 18. BRIT J CANCER , 90 (11) 2203 - 2209. 10.1038/sj.bjc.6601829.

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Abstract

Ultraviolet (UV) irradiation is a major mutagenic environmental agent, causing the appearance of DNA adducts that, if unrepaired, may give rise to mutations. Ultraviolet radiation has been indicated as a major risk factor in the development of nonmelanoma skin cancers; however, recent reports have suggested that infections with human papillomaviruses, a widespread family of epitheliotropic DNA viruses, may also contribute to the tumorigeneic process. Here, we investigated whether expression of the E6 protein from different HPV types interfere with the repair of thymine dimers caused by UV-B radiation. Results show that unrepaired DNA damage can be observed in UV-B-irradiated cells expressing the E6 protein of HPV types found in cervical and epithelial cancers. Moreover, such cells have the ability to overcome the G(1) cell cycle checkpoint induced as a result of unrepaired DNA. (C) 2004 Cancer Research UK.

Type: Article
Title: Repair of UV-induced thymine dimers is compromised in cells expressing the E6 protein from humanpapillomaviruses types 5 and 18
DOI: 10.1038/sj.bjc.6601829
Keywords: UV, HPV, DNA damage repair, p53, NONMELANOMA SKIN-CANCER, NUCLEOTIDE EXCISION-REPAIR, EPIDERMODYSPLASIA-VERRUCIFORMIS, HUMAN PAPILLOMAVIRUSES, DNA-REPAIR, P53 MUTATIONS, CYCLIN-A, FIBROBLASTS, APOPTOSIS, SUNLIGHT
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Cancer Institute
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Cancer Institute > Research Department of Oncology
URI: http://discovery.ucl.ac.uk/id/eprint/174291
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