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Journal ArticleDOI

Functional role of type I and type II interferons in antiviral defense.

TLDR
Comparison of mice lacking either type I or type II IFN receptors showed that, at least in response to some viruses, both IFN systems are essential for antiviral defense and are functionally nonredundant.
Abstract
Mice lacking the known subunit of the type I interferon (IFN) receptor were completely unresponsive to type I IFNs, suggesting that this receptor chain is essential for type I IFN-mediated signal transduction. These mice showed no overt anomalies but were unable to cope with viral infections, despite otherwise normal immune responses. Comparison of mice lacking either type I or type II IFN receptors showed that, at least in response to some viruses, both IFN systems are essential for antiviral defense and are functionally nonredundant.

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Citations
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Journal ArticleDOI

Interferon-γ: an overview of signals, mechanisms and functions

TL;DR: The current understanding of IFN‐γ ligand, receptor, ignal transduction, and cellular effects with a focus on macrophage responses and to a lesser extent, responses from other cell types that influence macrophages function during infection are reviewed.
Journal ArticleDOI

Cellular responses to interferon-gamma.

TL;DR: Much of the cellular response to IFN-gamma can be described in terms of a set of integrated molecular programs underlying well-defined physiological systems, for example the induction of efficient antigen processing for MHC-mediated antigen presentation, which play clearly defined roles in pathogen resistance.
Journal ArticleDOI

Antiviral Actions of Interferons

TL;DR: Tremendous progress has been made in understanding the molecular basis of the antiviral actions of interferons (IFNs), as well as strategies evolved by viruses to antagonize the actions of IFNs.
Journal ArticleDOI

Interferon-inducible antiviral effectors

TL;DR: This Review discusses four main effector pathways of the IFN-mediated antiviral response: the Mx GTPase pathway, the 2′,5′-oligoadenylate-synthetase-directed ribonuclease L pathways, the protein kinase R pathway and the ISG15 ubiquitin-like pathway.
References
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Journal ArticleDOI

Mx protein: Constitutive expression in 3T3 cells transformed with cloned Mx cDNA confers selective resistance to influenza virus

TL;DR: Specific resistance to influenza virus in vivo may be attributed to Mx protein expression and is independent of other IFN-mediated effects.
Journal ArticleDOI

Quantification of lymphocytic choriomeningitis virus with an immunological focus assay in 24- or 96-well plates.

TL;DR: The method drastically reduces the need for titration of LCMV in mice, is quicker (2-3 days), as compared to conventional methods (4-6 days) and less expensive in terms of work and materials.
Journal ArticleDOI

Resistance to influenza virus and vesicular stomatitis virus conferred by expression of human MxA protein.

TL;DR: The conclusion that resistance to influenza virus and vesicular stomatitis virus was due to the specific action of MxA is supported by the observation that transfected 3T3 cell lines expressing the related MxB failed to acquire virus resistance.
Journal ArticleDOI

Use of a selectable marker regulated by alpha interferon to obtain mutations in the signaling pathway

TL;DR: This work has selected mutations in genes encoding components of the signaling pathway for alpha interferon (IFN-alpha) by using a specially constructed cell line using the upstream region of the IFN-regulated human gene 6-16 fused to the Escherichia coli guanine phosphoribosyltransferase (gpt) gene and transfected into hypoxanthine-guanine phosphate-negative human cells.
Book ChapterDOI

Interferon-induced proteins and the antiviral state.

TL;DR: This chapter reviews recent work on the best-characterized interferon (IFN)-induced proteins with assigned functions—namely, protein kinase P1, 2-5A synthetase, mouse and human Mx proteins, indolamine 2,3-dioxygenase, and a few other IFN-induced proteins.
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