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Updated: Mar 25, 2026

Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle
Published on: February 1, 2017
New perspectives on the hepatitis B virus life cycle in the human liver
Abstract:
The central role of the transcriptional template of the hepatitis B virus (HBV), covalently closed circular DNA (cccDNA), has been difficult to study in patients with chronic hepatitis B (CHB) infection. In this issue of the JCI, Zhang and colleagues reveal a mosaic distribution of viral antigens and nucleic acids and a mismatch between HBV cccDNA, RNA, and expression of the hepatitis B surface antigen (HBsAg). These unusual patterns varied over the natural history of CHB, prompting the authors to propose a new three-stage model of the HBV life cycle at the single-cell level.
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