Manipulation of cellular DNA damage repair machinery facilitates propagation of human papillomaviruses
- PMID: 24412279
- PMCID: PMC4050178
- DOI: 10.1016/j.semcancer.2013.12.003
Manipulation of cellular DNA damage repair machinery facilitates propagation of human papillomaviruses
Abstract
In general, the interplay among viruses and DNA damage repair (DDR) pathways can be divided based on whether the interaction promotes or inhibits the viral lifecycle. The propagation of human papillomaviruses is both promoted and inhibited by DDR proteins. As a result, HPV proteins both activate repair pathways, such as the ATM and ATR pathways, and inhibit other pathways, most notably the p53 signaling pathway. Indeed, the role of HPV proteins, with regard to the DDR pathways, can be divided into two broad categories. The first set of viral proteins, HPV E1 and E2 activate a DNA damage response and recruit repair proteins to viral replication centers, where these proteins are likely usurped to replicate the viral genome. Because the activation of the DDR response typically elicits a cell cycle arrest that would impeded the viral lifecycle, the second set of HPV proteins, HPV E6 and E7, prevents the DDR response from pausing cell cycle progression or inducing apoptosis. This review provides a detailed account of the interactions among HPV proteins and DDR proteins that facilitate HPV propagation.
Keywords: DNA damage repair; HPV; HPV replication.
Copyright © 2013 Elsevier Ltd. All rights reserved.
Conflict of interest statement
The authors declare that they have no conflicts of interest.
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