Acute HBV infection in humanized chimeric mice has multiphasic viral kinetics
- PhoenixBio Co., Ltd., Hiroshima (Japan); Hiroshima Univ., Hiroshima (Japan)
- Loyola Univ. Medical Center, Maywood, IL (United States). Program for Experimental & Theoretical Modeling, Division of Hepatology, Dept. of Medicine; Goethe Univ., Frankfurt (Germany). Inst. of Biostatistics and Mathematical Modeling
- Hiroshima Univ., Hiroshima (Japan)
- Loyola Univ. Medical Center, Maywood, IL (United States). Program for Experimental & Theoretical Modeling, Division of Hepatology, Dept. of Medicine
- PhoenixBio Co., Ltd., Hiroshima (Japan)
- Loyola Univ. Medical Center, Maywood, IL (United States). Program for Experimental & Theoretical Modeling, Division of Hepatology, Dept. of Medicine; Univ. of Edinburgh, Scotland (United Kingdom). Centre for Immunity, Infection and Evolution
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Background: Chimeric uPA/SCID mice reconstituted with humanized livers are useful for studying HBV infection in the absence of an adaptive immune response. However, the detailed characterization of HBV infection kinetics necessary to enable in-depth mechanistic studies in this novel in vivo HBV infection model is lacking. Methods: To characterize HBV kinetics post-inoculation (p.i.) to steady state, 42 mice were inoculated with HBV. Serum HBV DNA was frequently measured from 1 minute to 63 days p.i. Total intrahepatic HBV DNA, HBV cccDNA, and HBV RNA was measured in a subset of mice at 2, 4, 6, 10, and 13 weeks p.i. HBV half-life (t1/2) was estimated using a linear mixed-effects model. Results: During the first 6 h p.i. serum HBV declined in repopulated uPA/SCID mice with a t1/2=62 min [95%CI=59-67min]. Thereafter, viral decline slowed followed by a 2 day lower plateau. Subsequent viral amplification was multiphasic with an initial mean doubling time of t2= 8±3 h followed by an interim plateau before prolonged amplification (t2=2±0.5 days) to a final HBV steady state of 9.3 ± 0.3 log copies/ml. Serum HBV and intrahepatic HBV DNA were positively correlated (R2=0.98). Conclusions: HBV infection in uPA/SCID chimeric mice is highly dynamic despite the absence of an adaptive immune response. The serum HBV t1/2 in humanized uPA/SCID mice was estimated to be ~1 h regardless of inoculum size. Finally, the HBV acute infection kinetics presented here is an important step in characterizing this experimental model system so that it can be effectively used to elucidate the dynamics of the HBV lifecycle and thus possibly reveal effective antiviral drug targets.
- Research Organization:
- Los Alamos National Laboratory (LANL)
- Sponsoring Organization:
- National Institutes of Health (NIH); PhoenixBio Co. Ltd.; USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1435513
- Alternate ID(s):
- OSTI ID: 1441016
- Report Number(s):
- LA-UR-15-27225
- Journal Information:
- Hepatology, Journal Name: Hepatology Journal Issue: 2 Vol. 68; ISSN 0270-9139
- Publisher:
- American Association for the Study of Liver DiseasesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Early Multiphasic HBV Infection Initiation Kinetics Is Not Clone-Specific and Is Not Affected by Hepatitis D Virus (HDV) Infection
|
journal | March 2019 |
Similar Records
Understanding Hepatitis B Virus Dynamics and the Antiviral Effect of Interferon Alpha Treatment in Humanized Chimeric Mice
Multiscale modeling of HBV infection integrating intra- and intercellular viral propagation to analyze extracellular viral markers
Property of hepatitis B virus replication in Tupaia belangeri hepatocytes
Journal Article
·
Wed Jun 23 20:00:00 EDT 2021
· Journal of Virology
·
OSTI ID:1883138
Multiscale modeling of HBV infection integrating intra- and intercellular viral propagation to analyze extracellular viral markers
Journal Article
·
Sun Mar 10 20:00:00 EDT 2024
· PLoS Computational Biology (Online)
·
OSTI ID:2433945
Property of hepatitis B virus replication in Tupaia belangeri hepatocytes
Journal Article
·
Thu Jan 07 23:00:00 EST 2016
· Biochemical and Biophysical Research Communications
·
OSTI ID:22594165