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Title: Antibody Responses during Hepatitis B Viral Infection

Journal Article · · PLoS Computational Biology (Online)
 [1];  [2];  [2]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Dept. of Mathematics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division

Hepatitis B is a DNA virus that infects liver cells and can cause both acute and chronic disease. It is believed that both viral and host factors are responsible for determining whether the infection is cleared or becomes chronic. Here we investigate the mechanism of protection by developing a mathematical model of the antibody response following hepatitis B virus (HBV) infection. We fitted the model to data from seven infected adults identified during acute infection and determined the ability of the virus to escape neutralization through overproduction of non-infectious subviral particles, which have HBs proteins on their surface, but do not contain nucleocapsid protein and viral nucleic acids. We showed that viral clearance can be achieved for high anti-HBV antibody levels, as in vaccinated individuals, when: (1) the rate of synthesis of hepatitis B subviral particles is slow; (2) the rate of synthesis of hepatitis B subviral particles is high but either anti-HBV antibody production is fast, the antibody affinity is high, or the levels of pre-existent HBV-specific antibody at the time of infection are high, as could be attained by vaccination. We further showed that viral clearance can be achieved for low equilibrium antiHBV antibody levels, as in unvaccinated individuals, when a strong cellular immune response controls early infection.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1627236
Journal Information:
PLoS Computational Biology (Online), Vol. 10, Issue 7; ISSN 1553-7358
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (16)

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Modeling the Effects of Morphine-Altered Virus Specific Antibody Responses on HIV/SIV Dynamics journal April 2019
Trade-offs in antibody repertoires to complex antigens journal September 2015
The immunoglobulin γ marker 17 allotype and KIR/HLA genes prevent the development of chronic hepatitis B in humans journal November 2019
Modeling the dynamics of hepatitis B infection, immunity, and drug therapy journal August 2018
Mathematical modeling of within-host Zika virus dynamics journal August 2018
Mathematical Modeling of the Adaptive Immune Responses in the Early Stage of the HBV Infection journal January 2018
A multi-scale spatial model of hepatitis-B viral dynamics journal December 2017
Chronic hepatitis B virus and liver fibrosis: A mathematical model journal April 2018
Pre-Activation of Toll-Like Receptor 2 Enhances CD8+ T-Cell Responses and Accelerates Hepatitis B Virus Clearance in the Mouse Models journal June 2018
Immune Evasion Strategies during Chronic Hepatitis B and C Virus Infection journal September 2017
In-host modeling journal May 2017
Characteristics and viral propagation properties of a new human diploid cell line, walvax-2, and its suitability as a candidate cell substrate for vaccine production journal March 2015
The Role of Aggregates of Therapeutic Protein Products in Immunogenicity: An Evaluation by Mathematical Modeling journal January 2015
Epidemiology of viral hepatitis in the Republic of Congo: review journal December 2017
Modelling the Impact of Cell-To-Cell Transmission in Hepatitis B Virus journal August 2016

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