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Genetic basis for adverse events after smallpox vaccination.
Reif DM, McKinney BA, Motsinger AA, Chanock SJ, Edwards KM, Rock MT, Moore JH, Crowe JE
(2008) J Infect Dis 198: 16-22
MeSH Terms: Adult, Female, Genetic Predisposition to Disease, Genotype, Humans, Interferon Regulatory Factor-1, Interleukin-4, Male, Methylenetetrahydrofolate Reductase (NADPH2), Polymorphism, Single Nucleotide, Smallpox Vaccine, Vaccination
Show Abstract · Added August 6, 2012
Identifying genetic factors associated with the development of adverse events might allow screening before vaccinia virus administration. Two independent clinical trials of the smallpox vaccine (Aventis Pasteur) were conducted in healthy, vaccinia virus-naive adult volunteers. Volunteers were assessed repeatedly for local and systemic adverse events (AEs) associated with the receipt of vaccine and underwent genotyping for 1,442 singlenucleotide polymorphisms (SNPs). In the first study, 36 SNPs in 26 genes were associated with systemic AEs (P
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12 MeSH Terms
Paired Stat6 C-terminal transcription activation domains required both for inhibition of an IFN-responsive promoter and trans-activation.
Goenka S, Youn J, Dzurek LM, Schindler U, Yu-Lee LY, Boothby M
(1999) J Immunol 163: 4663-72
MeSH Terms: Binding, Competitive, Cell Line, Cell Nucleus, DNA-Binding Proteins, Humans, Interferon Regulatory Factor-1, Interferon-gamma, Interleukin-4, Peptide Fragments, Phosphoproteins, Promoter Regions, Genetic, Protein Binding, Regulatory Sequences, Nucleic Acid, STAT6 Transcription Factor, Signal Transduction, Trans-Activators, Transcriptional Activation, Tumor Cells, Cultured
Show Abstract · Added December 10, 2013
The cytokines IL-4 and IFN-gamma exert biologically antagonistic effects that in part reflect opposing influences on gene transcription. While the molecular mechanisms for IL-4-mediated transcription activation have been extensively studied, little is known about molecular mechanisms required for IL-4 inhibition of IFN-gamma signaling. We have investigated IL-4 inhibition of the IFN-gamma-inducible promoter for IFN regulatory factor-1 (IRF-1). In a cell line with low endogenous Stat6, increasing levels of activated Stat6 at constant doses of IFN-gamma and IL-4 leads to inhibition of the IRF-1 promoter. The Stat1-dependent IFN-gamma activation sequence element of the IRF-1 promoter is a target for Stat6-mediated inhibition despite apparently normal Stat1 DNA binding. However, our data are inconsistent with competition between Stat1 and Stat6 for access to the IRF-1 IFN-gamma activation sequence or for an essential coactivator as a mechanism for this Stat6-mediated inhibition. Instead, the data demonstrate that a threshold of Stat6 transcription activation domains is required for IL-4-dependent inhibition. The findings provide evidence of a novel mechanism in which the Stat6 transcription activation domains play a critical role in the IL-4-mediated inhibition of an IFN-gamma-inducible promoter.
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18 MeSH Terms