Molecular mechanisms of human papillomavirus-induced carcinogenesis.

Abstract:

:Approximately 20% of all cancers are associated with infectious agents. Among them, human papillomaviruses (HPVs) are very common and are now recognized as the etiological agent of cervical cancer, the second most common cancer in women worldwide, and they are increasingly linked with other forms of dysplasia. Carcinogenesis is a complex and multistep process requiring the acquisition of several genetic and/or epigenetic alterations. HPV-induced neoplasia, however, is in part mediated by the intrinsic functions of the viral proteins. In order to replicate its genome, HPV modulates the cell cycle, while deploying mechanisms to escape the host immune response, cellular senescence and apoptosis. As such, HPV infection leads directly and indirectly to genomic instability, further favouring transforming genetic events and progression to malignancy. This review aims to summarize our current understanding of the molecular mechanisms exploited by HPV to induce neoplasia, with an emphasis on the role of the 2 viral oncoproteins E6 and E7. Greater understanding of the role of HPV proteins in these processes will ultimately aid in the development of antiviral therapies, as well as unravel general mechanisms of oncogenesis.

journal_name

Public Health Genomics

journal_title

Public health genomics

authors

Lehoux M,D'Abramo CM,Archambault J

doi

10.1159/000214918

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

268-80

issue

5-6

eissn

1662-4246

issn

1662-8063

pii

000214918

journal_volume

12

pub_type

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