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J Clin Exp Hepatol. 2019 Jan-Feb;9(1):34-42. doi: 10.1016/j.jceh.2018.02.002. Epub 2018 Feb 16.

Hepatitis B Virus Infection of Normal Hepatic Stem/Progenitor Cells.

Journal of clinical and experimental hepatology

Wendy W Bautista, Carla Osiowy, Julianne Klein, Gerald Y Minuk

Affiliations

  1. Section of Hepatology, Department of Medicine, University of Manitoba, Winnipeg, Canada.
  2. National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada.
  3. Diagnostic Services Manitoba, Department of Pathology, St. Boniface General Hospital, University of Manitoba, Winnipeg, Canada.

PMID: 30765937 PMCID: PMC6363946 DOI: 10.1016/j.jceh.2018.02.002

Abstract

BACKGROUND/AIMS: Whether the hepatitis B virus (HBV) infects normal hepatic stem/progenitor cells (NSCs) and if so, whether such infections play a role in the pathogenesis of HBV-induced chronic liver disease (CLD) and/or hepatocellular carcinoma (HCC) remains to be determined. The objectives of this study were to determine whether HBV infects NSCs and whether such infections alter NSC activity in a manner likely to contribute to the development of CLD and/or HCC.

METHODS: Liver biopsies from five hepatitis B surface antigen (HBsAg) positive patients were co-stained for HBcAg and HBx and the stem cell markers EpCAM, Oct-4 and Nanog. In addition, primary NSCs derived from healthy human livers were exposed to HBV contaminated serum

RESULTS: Markers of HBV infection were present within the NSC population of all five biopsy specimens.

CONCLUSIONS: Although the results of this study need to be confirmed, they suggest that HBV infects human NSCs but in the short term, do not alter those NSC features or activities associated with CLD and/or HCC.

Keywords: IU, international units; Neg, negative; SN, supernatant; UND, undetected; chronic hepatitis B; d, days; hepatic progenitor cells; hepatic stem cells; hepatitis B virus; hepatocellular carcinoma; ml, milliliters

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