Deep Sequencing of Liver Explant Transcriptomes Reveals Extensive Expression From Integrated Hepatitis B Virus DNA
Johan Ringlander 1 , Catarina Skoglund 2 3 , Kasthuri Prakash 1 , Maria E Andersson 1 , Simon B Larsson 1 , Ka-Wei Tang 1 , Gustaf E Rydell 1 , Sanna Abrahamsson 4 , Maria Castedal 2 3 , Heléne Norder 1 , Kristoffer Hellstrand 1 , Magnus Lindh 1
Affiliations
Affiliations
1
Department of Infectious Diseases, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
2
The Transplant Institute, Department of Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden.
3
Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
4
Bioinformatics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
PMID: 32592629 DOI: 10.1111/jvh.13356
Abstract
Hepatitis B virus (HBV) is a major cause of hepatocellular carcinoma (HCC). Integration of HBV DNA into the human genome may contribute to oncogenesis and to the production of the hepatitis B surface antigen (HBsAg). Whether integrations contribute to HBsAg levels in the blood is poorly known. Here we characterize the HBV RNA profile of HBV integrations in liver tissue in patients with chronic HBV infection, with or without concurrent hepatitis D infection, by transcriptome deep sequencing. Transcriptomes were determined in liver tissue by deep sequencing providing 200 million reads per sample. Integration points were identified using a bioinformatic pipeline. Explanted liver tissue from five patients with end-stage liver disease caused by HBV or HBV/HDV was studied along with publicly available transcriptomes from 21 patients. Almost all HBV RNA profiles were devoid of reads in the core and the 3' redundancy (nt 1830-1927) regions, and contained a large number of chimeric viral/human reads. Hence HBV transcripts from integrated HBV DNA rather than from covalently closed circular HBV DNA (cccDNA) predominated in late-stage HBV infection, in particular in cases with hepatitis D virus co-infection. The findings support the suggestion that integrated HBV DNA can be a significant source of HBsAg in humans.
Keywords: HBsAg; HCC; hepatitis B virus; integration; transcriptome.
This article is protected by copyright. All rights reserved. 作者: StephenW 时间: 2020-6-29 15:15
肝脏外植体转录组的深度测序揭示了整合性乙型肝炎病毒DNA的广泛表达
约翰·林格兰德(Johan Ringlander)1,卡塔琳娜·斯科格隆德(Catarina Skoglund)2 3,卡斯杜里·普拉卡什(Kashthuri Prakash)1,玛丽亚·E·安德森(Maria E Andersson)1,西蒙·B·拉尔森(Simon B Larsson)1,唐嘉玮1,古斯塔夫·埃·雷德尔(Gustaf E Rydell)1,桑娜·亚伯拉罕森(Sanna Abrahamsson)4,玛丽亚·卡斯特达尔(Maria Castedal)2 3,海伦·诺德(HeléneNorder)1,克里斯托弗·海斯特兰德(Kristoffer Hellstrand)1马格努斯·林德1
隶属关系
隶属关系