Profile of HBV Integration in the Plasma DNA of Hepatocellular Carcinoma Patients

Author(s): Weiyang Li*, Xiaofang Cui*, Qing Huo, Yanwei Qi, Yuhui Sun, Meihua Tan, Qingsheng Kong*

Journal Name: Current Genomics

Volume 20 , Issue 1 , 2019

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Graphical Abstract:


Background: Hepatitis B Viral (HBV) infection is one of the major causes of Hepatocellular Carcinoma (HCC). Mounting evidence had provided that the HBV integration might be a critical contributor of HCC carcinogenesis.

Objective and Methods: To explore the profile of HBV integration in the plasma DNA, the method of next-generation sequencing, HBV capture and bioinformatics had been employed to screen for HBV integration sites in the plasma samples.

Results: In the initial experiment, a total of 87 breakpoints were detected in the 20 plasma samples. The distribution of breakpoints showed that there was significant enrichment of breakpoints in the region of intron. Furthermore, the HBV breakpoints were prone to occur in the region of X protein (1,700-2,000bp) in the plasma samples. The pathway analysis had revealed that the HBV integrations sites were specifically enriched in the cancer pathway.

Conclusion: Altogether, our results had provided direct evidence for the HBV integration in plasma DNA, and they might be potentially useful for future HCC prognosis and diagnosis.

Keywords: Hepatocellular carcinoma, Plasma, HBV integration, Cell free DNA, HBV genome, Breakpoints.

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Article Details

Year: 2019
Page: [61 - 68]
Pages: 8
DOI: 10.2174/1389202919666181002144336
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