Genomic Profiling of Tumor Necrosis Factor Alpha (TNF-α) Receptor and Interleukin-1 Receptor Knockout Mice Reveals a Link between TNF-α Signaling and Increased Severity of 1918 Pandemic Influenza Virus Infection
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Published:2010-12-15
Issue:24
Volume:84
Page:12576-12588
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ISSN:0022-538X
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Container-title:Journal of Virology
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language:en
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Short-container-title:J Virol
Author:
Belisle Sarah E.12, Tisoncik Jennifer R.12, Korth Marcus J.12, Carter Victoria S.12, Proll Sean C.12, Swayne David E.3, Pantin-Jackwood Mary3, Tumpey Terrence M.4, Katze Michael G.12
Affiliation:
1. Department of Microbiology 2. Washington National Primate Research Center, University of Washington, Seattle, Washington 98195 3. Southeast Poultry Research Laboratory, Agricultural Research Laboratory, U.S. Department of Agriculture, Athens, Georgia 30606 4. Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia 30333
Abstract
ABSTRACT
The influenza pandemic of 1918 to 1919 was one of the worst global pandemics in recent history. The highly pathogenic nature of the 1918 virus is thought to be mediated in part by a dysregulation of the host response, including an exacerbated proinflammatory cytokine response. In the present study, we compared the host transcriptional response to infection with the reconstructed 1918 virus in wild-type, tumor necrosis factor (TNF) receptor-1 knockout (TNFRKO), and interleukin-1 (IL-1) receptor-1 knockout (IL1RKO) mice as a means of further understanding the role of proinflammatory cytokine signaling during the acute response to infection. Despite reported redundancy in the functions of IL-1β and TNF-α, we observed that reducing the signaling capacity of each of these molecules by genetic disruption of their key receptor genes had very different effects on the host response to infection. In TNFRKO mice, we found delayed or decreased expression of genes associated with antiviral and innate immune signaling, complement, coagulation, and negative acute-phase response. In contrast, in IL1RKO mice numerous genes were differentially expressed at 1 day postinoculation, including an increase in the expression of genes that contribute to dendritic and natural killer cell processes and cellular movement, and gene expression profiles remained relatively constant at later time points. We also observed a compensatory increase in TNF-α expression in virus-infected IL1RKO mice. Our data suggest that signaling through the IL-1 receptor is protective, whereas signaling through the TNF-α receptor increases the severity of 1918 virus infection. These findings suggest that manipulation of these pathways may have therapeutic benefit.
Publisher
American Society for Microbiology
Subject
Virology,Insect Science,Immunology,Microbiology
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