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Type: Journal article
Title: Type I interferons mediate the innate cytokine response to recombinant fowlpox virus but not the induction of plasmacytoid dendritic cell-dependent adaptive immunity
Author: Lousberg, E.
Fraser, C.
Tovey, M.
Diener, K.
Hayball, J.
Citation: Journal of Virology, 2010; 84(13):6549-6563
Publisher: American Society for Microbiology
Issue Date: 2010
ISSN: 0022-538X
Statement of
Erin L. Lousberg, Cara K. Fraser, Michael G. Tovey, Kerrilyn R. Diener, and John D. Hayball
Abstract: Type I interferons (IFNs) are considered to be important mediators of innate immunity due to their inherent antiviral activity, ability to drive the transcription of a number of genes involved in viral clearance, and their role in the initiation of innate and adaptive immune responses. Due to the central role of type I IFNs, we sought to determine their importance in the generation of immunity to a recombinant vaccine vector fowlpox virus (FPV). In analyzing the role of type I IFNs in immunity to FPV, we show that they are critical to the secretion of a number of innate and proinflammatory cytokines, including type I IFNs themselves as well as interleukin-12 (IL-12), tumor necrosis factor-alpha (TNF-{alpha}), IL-6, and IL-1β, and that deficiency leads to enhanced virus-mediated antigen expression. Interestingly, however, type I IFNs were not required for adaptive immune responses to recombinant FPV even though plasmacytoid dendritic cells (pDCs), the primary producers of type I IFNs, have been shown to be requisite for this to occur. Furthermore, we provide evidence that the importance of pDCs may lie in their ability to capture and present virally derived antigen to T cells rather than in their capacity as professional type I IFN-producing cells.
Keywords: Antigen-Presenting Cells
Dendritic Cells
Mice, Inbred C57BL
Fowlpox virus
Interferon Type I
Vaccines, Synthetic
Viral Vaccines
Antigens, Viral
Adaptive Immunity
Rights: Copyright © 2010, American Society for Microbiology. All Rights Reserved.
DOI: 10.1128/JVI.02618-09
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