Persistent hepatitis B virus and HIV coinfections in dually humanized mice engrafted with human liver and immune system

Glenn Hogan, Benjamin Y. Winer, James Ahodantin, Julie Sellau, Tiffany Huang, Florian Douam, Masaya Funaki, Luis Chiriboga, Lishan Su, Alexander Ploss

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Chronic hepatitis B (CHB), caused by hepatitis B virus (HBV), remains a major medical problem. HBV has a high propensity for progressing to chronicity and can result in severe liver disease, including fibrosis, cirrhosis, and hepatocellular carcinoma. CHB patients frequently present with viral coinfection, including human immunodeficiency virus type (HIV) and hepatitis delta virus. About 10% of chronic HIV carriers are also persistently infected with HBV, which can result in more exacerbated liver disease. Mechanistic studies of HBV-induced immune responses and pathogenesis, which could be significantly influenced by HIV infection, have been hampered by the scarcity of immunocompetent animal models. Here, we demonstrate that humanized mice dually engrafted with components of a human immune system and a human liver supported HBV infection, which was partially controlled by human immune cells, as evidenced by lower levels of serum viremia and HBV replication intermediates in the liver. HBV infection resulted in priming and expansion of human HLA-restricted CD8+ T cells, which acquired an activated phenotype. Notably, our dually humanized mice support persistent coinfections with HBV and HIV, which opens opportunities for analyzing immune dysregulation during HBV and HIV coinfection, and preclinical testing of novel immunotherapeutics.

Original languageEnglish (US)
Article numbere28930
JournalJournal of Medical Virology
Volume95
Issue number7
DOIs
StatePublished - Jul 2023

All Science Journal Classification (ASJC) codes

  • Infectious Diseases
  • Virology

Keywords

  • AIDS
  • HBV
  • HIV
  • antiviral immunity
  • hepatitis B virus
  • humanized mice
  • species tropism

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