Screening of different species reveals cat hepatocytes support HBV infection.

Hepatitis B virus (HBV) remains a major public health challenge, with nearly 300 million chronic infections, yet research is hindered by the lack of suitable animal models. This study aimed to identify HBV-susceptible species and establish a novel infection model. Primary hepatocytes from humans, ca...

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Main Authors: Zaichao Xu, Kaitao Zhao, Jingjing Wang, Lu Zhang, Jiatong Yin, Nijing Chen, Sijia Chen, Gaihong Zhao, Mengfei Wang, Tailai Xin, Chengliang Zhu, Xiaoming Cheng, Yuchen Xia
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-08-01
Series:PLoS Pathogens
Online Access:https://doi.org/10.1371/journal.ppat.1013390
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author Zaichao Xu
Kaitao Zhao
Jingjing Wang
Lu Zhang
Jiatong Yin
Nijing Chen
Sijia Chen
Gaihong Zhao
Mengfei Wang
Tailai Xin
Chengliang Zhu
Xiaoming Cheng
Yuchen Xia
author_facet Zaichao Xu
Kaitao Zhao
Jingjing Wang
Lu Zhang
Jiatong Yin
Nijing Chen
Sijia Chen
Gaihong Zhao
Mengfei Wang
Tailai Xin
Chengliang Zhu
Xiaoming Cheng
Yuchen Xia
author_sort Zaichao Xu
collection DOAJ
description Hepatitis B virus (HBV) remains a major public health challenge, with nearly 300 million chronic infections, yet research is hindered by the lack of suitable animal models. This study aimed to identify HBV-susceptible species and establish a novel infection model. Primary hepatocytes from humans, cats, rabbits, Syrian hamsters, Siberian hamsters, guinea pigs, bulls, goats, pigs, cynomolgus macaques, and dogs were assessed for HBV entry using hepatitis D virus (HDV) infection. HBV relaxed circular DNA (rcDNA) transfection was performed to evaluate its repair into covalently closed circular DNA (cccDNA). HBV infection assays were conducted in vitro. Results showed that primary hepatocytes from humans and cats were susceptible to HDV, suggesting their potential to support HBV entry. All tested hepatocytes converted rcDNA into cccDNA, confirming their ability to complete early HBV replication steps. Notably, cat hepatocytes uniquely supported HBV infection, displaying time-dependent viral replication marker expression. Cat hepatocytes also responded to antiviral treatments, underscoring their relevance for drug evaluation. This study provides the first evidence that cats can support HBV infection in vitro, offering a promising new platform for HBV research and antiviral development.
format Article
id doaj-art-7ceb51c3aaa04d238687985b2ff05eac
institution Kabale University
issn 1553-7366
1553-7374
language English
publishDate 2025-08-01
publisher Public Library of Science (PLoS)
record_format Article
series PLoS Pathogens
spelling doaj-art-7ceb51c3aaa04d238687985b2ff05eac2025-08-23T05:31:24ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742025-08-01218e101339010.1371/journal.ppat.1013390Screening of different species reveals cat hepatocytes support HBV infection.Zaichao XuKaitao ZhaoJingjing WangLu ZhangJiatong YinNijing ChenSijia ChenGaihong ZhaoMengfei WangTailai XinChengliang ZhuXiaoming ChengYuchen XiaHepatitis B virus (HBV) remains a major public health challenge, with nearly 300 million chronic infections, yet research is hindered by the lack of suitable animal models. This study aimed to identify HBV-susceptible species and establish a novel infection model. Primary hepatocytes from humans, cats, rabbits, Syrian hamsters, Siberian hamsters, guinea pigs, bulls, goats, pigs, cynomolgus macaques, and dogs were assessed for HBV entry using hepatitis D virus (HDV) infection. HBV relaxed circular DNA (rcDNA) transfection was performed to evaluate its repair into covalently closed circular DNA (cccDNA). HBV infection assays were conducted in vitro. Results showed that primary hepatocytes from humans and cats were susceptible to HDV, suggesting their potential to support HBV entry. All tested hepatocytes converted rcDNA into cccDNA, confirming their ability to complete early HBV replication steps. Notably, cat hepatocytes uniquely supported HBV infection, displaying time-dependent viral replication marker expression. Cat hepatocytes also responded to antiviral treatments, underscoring their relevance for drug evaluation. This study provides the first evidence that cats can support HBV infection in vitro, offering a promising new platform for HBV research and antiviral development.https://doi.org/10.1371/journal.ppat.1013390
spellingShingle Zaichao Xu
Kaitao Zhao
Jingjing Wang
Lu Zhang
Jiatong Yin
Nijing Chen
Sijia Chen
Gaihong Zhao
Mengfei Wang
Tailai Xin
Chengliang Zhu
Xiaoming Cheng
Yuchen Xia
Screening of different species reveals cat hepatocytes support HBV infection.
PLoS Pathogens
title Screening of different species reveals cat hepatocytes support HBV infection.
title_full Screening of different species reveals cat hepatocytes support HBV infection.
title_fullStr Screening of different species reveals cat hepatocytes support HBV infection.
title_full_unstemmed Screening of different species reveals cat hepatocytes support HBV infection.
title_short Screening of different species reveals cat hepatocytes support HBV infection.
title_sort screening of different species reveals cat hepatocytes support hbv infection
url https://doi.org/10.1371/journal.ppat.1013390
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