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. 1987 Dec;61(12):3848–3854. doi: 10.1128/jvi.61.12.3848-3854.1987

Chromosomal translocation and inverted duplication associated with integrated hepatitis B virus in hepatocellular carcinomas.

T Tokino 1, S Fukushige 1, T Nakamura 1, T Nagaya 1, T Murotsu 1, K Shiga 1, N Aoki 1, K Matsubara 1
PMCID: PMC256002  PMID: 2824819

Abstract

Integrated hepatitis B virus (HBV) DNA is found in hepatocellular carcinomas which develop in HBV carriers. Presented here are the results of analyses of four integrants that show chromosomal rearrangements associated with the integrated HBV DNA. Two clones (p4 and C15) were found to have large inverted repeating structures, each consisting of HBV genome along with flanking cellular sequences. The structure must have arisen by duplication of the primary integrant, including the flanking cellular DNA, followed by recombination within the viral DNA. One of the two viral arms in each clone joins to the other viral arm at the "cohesive end region." Two clones (DA2-2 and DA2-6) were found to have integrated HBV sequences, each flanked by cellular DNAs from different chromosomes (chromosome X joined to 17 and chromosome 5 joined to 9). They must be the products of cellular DNA translocations using the integrated HBV DNA as the switch point. The viral DNA in each clone is a continuous stretch of a single virus genome with one end in the cohesive end region. These complex structures seem to have been produced by activation of the cohesive end of an integrant viral genome, followed by its recombination with another chromosomal DNA.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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