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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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Journal ArticleDOI

Novel Cell Type–Specific Antiviral Mechanism of Interferon γ Action in Macrophages

TL;DR: A novel mechanism of IFN-γ action restricted to Mϕ, a cell type key for MCMV pathogenesis and latency is defined, which is independent of known mechanisms involvingIFN-α/β, tumor necrosis factor α, inducible nitric oxide synthase, protein kinase RNA activated (PKR), RNaseL, and Mx1.
Book ChapterDOI

Dual mechanisms of apoptosis induction by cytotoxic lymphocytes

TL;DR: Exciting recent developments have indicated that both cytolytic mechanisms impinge on an endogenous signaling pathway that is strongly conserved in species as diverse as helminths and humans and dictates the death or survival of all cells.
Journal ArticleDOI

Basal Expression Levels of IFNAR and Jak-STAT Components Are Determinants of Cell-Type-Specific Differences in Cardiac Antiviral Responses

TL;DR: It is found that greater basal expression of IFN-β in cardiac myocytes results in greater basal activated nuclear STAT1 and STAT2 and greater basal ISG mRNA expression and provides greater basal antiviral protection relative to cardiac fibroblasts, the first indication of an integrated network of cell-type-specific innate immune components for organ protection.
References
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Journal ArticleDOI

Various rat adult tissues express only one major mRNA species from the glyceraldehyde-3-phosphate-dehydrogenase multigenic family

TL;DR: This sequence allowed the determination of the hitherto unknown primary structure of rat GAPDH which is 333 aminoacids long and revealed a high degree of sequence conservation at both nucleotide and protein levels.
Journal ArticleDOI

Disruption of the proto-oncogene int-2 in mouse embryo-derived stem cells: a general strategy for targeting mutations to non-selectable genes

TL;DR: A positive and negative selection procedure is described that enriches 2,000-fold for those cells that contain a targeted mutation in mouse embryo-derived stem cells.
Journal ArticleDOI

Immune response in mice that lack the interferon-gamma receptor.

TL;DR: Mutant mice offer the possibility for the further elucidation of IFN-gamma-mediated functions by transgenic cell- or tissue-specific reconstitution of a functional receptor.
Journal ArticleDOI

Regulated expression of a gene encoding a nuclear factor, IRF-1, that specifically binds to IFN-β gene regulatory elements

TL;DR: It is shown here that the IRF-1 gene possesses virus-inducible promoter and is also involved in the regulation of other genes such as IFN-alpha and MHC class I genes.
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