Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2009-4-29
pubmed:abstractText
Hepatitis C virus (HCV) is the only known RNA virus with an exclusively cytoplasmic life cycle that is associated with cancer. The mechanisms by which it causes cancer are unclear, but chronic immune-mediated inflammation and associated oxidative chromosomal DNA damage probably play a role. Compelling data suggest that the path to hepatocellular carcinoma in chronic hepatitis C shares some important features with the mechanisms of transformation employed by DNA tumor viruses. Interactions of viral proteins with key regulators of the cell cycle, the retinoblastoma-susceptibility protein, p53, and possibly DDX5 and DDX3 lead to enhanced cellular proliferation and may also compromise multiple cell-cycle checkpoints that maintain genomic integrity, thus setting the stage for carcinogenesis. Dysfunctional DNA damage and mitotic spindle checkpoints resulting from these interactions may promote chromosomal instability and leave the hepatocyte unable to control DNA damage caused by oxidative stress mediated by HCV proteins, alcohol, and immune-mediated inflammation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1553-4014
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
399-415
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Tumor suppressors, chromosomal instability, and hepatitis C virus-associated liver cancer.
pubmed:affiliation
The Center for Hepatitis Research, Institute for Human Infections and Immunity, Sealy Center for Cancer Cell Biology, Galveston, TX 77555, USA.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural