Literature Information
PubMed PMID
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22962577
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Published year
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2012 |
Journal
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PloS one |
Title
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Re-evaluation of the carcinogenic significance of hepatitis B virus integration in hepatocarcinogenesis. |
Author
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Jiang S,Yang Z,Li W,Li X,Wang Y,Zhang J,Xu C,Chen PJ,Hou J,McCrae MA,Chen X,Zhuang H,Lu F |
Evidence
|
To examine the role of hepatitis B virus (HBV) integration in hepatocarcinogenesis, a systematic comparative study of both tumor and their corresponding non-tumor derived tissue has been conducted in a cohort of 60 HBV associated hepatocellular carcinoma (HCC) patients. No direct correlation between chromosome aberrations and the number of HBV integration events was found using a sensitive array-based comparative genomic hybridization (aCGH) assay. Strikingly, approximately 24% of the integrations examined had a breakpoint in a short 15 nt viral genome region (1820-1834 nt). Furthermore, the integrated viral sequences in both groups had a similar low frequency of C1653T, T1753V and A1762T/G1764A mutations. The frequency and patterns of HBV insertions were similar between tumor and their adjacent non-tumor samples indicating that the majority of HBV DNA integration events are not associated with hepatocarcinogenesis.
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