Simulation and Prediction of the Adaptive Immune Response to Influenza A Virus Infection

Author:

Lee Ha Youn1,Topham David J.2,Park Sung Yong1,Hollenbaugh Joseph2,Treanor John3,Mosmann Tim R.2,Jin Xia3,Ward Brian M.4,Miao Hongyu1,Holden-Wiltse Jeanne1,Perelson Alan S.5,Zand Martin6,Wu Hulin1

Affiliation:

1. Department of Biostatistics and Computational Biology, University of Rochester, Rochester, New York 14642

2. David H. Smith Center for Vaccine Biology & Immunology, Department of Microbiology and Immunology, University of Rochester, Rochester, New York 14642

3. Department of Medicine, Division of Infectious Diseases, University of Rochester, Rochester, New York 14642

4. Department of Microbiology and Immunology, University of Rochester, Rochester, New York 14642

5. Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

6. Department of Medicine, Division of Nephrology, University of Rochester, Rochester, New York 14642

Abstract

ABSTRACT The cellular immune response to primary influenza virus infection is complex, involving multiple cell types and anatomical compartments, and is difficult to measure directly. Here we develop a two-compartment model that quantifies the interplay between viral replication and adaptive immunity. The fidelity of the model is demonstrated by accurately confirming the role of CD4 help for antibody persistence and the consequences of immune depletion experiments. The model predicts that drugs to limit viral infection and/or production must be administered within 2 days of infection, with a benefit of combination therapy when administered early, and cytotoxic CD8 T cells in the lung are as effective for viral clearance as neutralizing antibodies when present at the time of challenge. The model can be used to investigate explicit biological scenarios and generate experimentally testable hypotheses. For example, when the adaptive response depends on cellular immune cell priming, regulation of antigen presentation has greater influence on the kinetics of viral clearance than the efficiency of virus neutralization or cellular cytotoxicity. These findings suggest that the modulation of antigen presentation or the number of lung resident cytotoxic cells and the combination drug intervention are strategies to combat highly virulent influenza viruses. We further compared alternative model structures, for example, B-cell activation directly by the virus versus that through professional antigen-presenting cells or dendritic cell licensing of CD8 T cells.

Publisher

American Society for Microbiology

Subject

Virology,Insect Science,Immunology,Microbiology

Reference84 articles.

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5. Barchet, W., S. Oehen, P. Klenerman, D. Wodarz, G. Bocharov, A. L. Lloyd, M. A. Nowak, H. Hengartner, R. M. Zinkernagel, and S. Ehl. 2000. Direct quantitation of rapid elimination of viral antigen-positive lymphocytes by antiviral CD8+ T cells in vivo. Eur. J. Immunol.30:1356-1363.

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