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Differential gene expression in spinal cords from WT and transgenic RdRP mice during uninfected (baseline) conditions

ABSTRACT: Previously, we reported that mice made transgenic for a picornaviral RdRP â?? the 3Dpol protein of Theilerâ??s murine encephalomyelitis virus (TMEV) â?? suppress infection by diverse viral families. How the picornaviral RdRP transgene exerted antiviral protection in vivo was not known. To investigate the molecular mechanism, we determined gene expression profiles in spinal cords of WT and RdRP transgenic mice prior to (baseline) and after (2 days) infection with Encephalomyocarditis Virus (EMCV). Spinal cords from adult age-matched, sex-matched WT or RdRP mice were harvested prior to (baseline) viral infection. Total RNA was isolated (Qiagen RNeasy kit) and used as a template to synthesize biotinylated cRNA which was then hybridized to the HT Mouse Genome 430 2.0 GeneChip Array (Affymetrix).

ORGANISM(S): Mus musculus

SUBMITTER: Meghan Painter

PROVIDER: E-GEOD-62756 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Differential gene expression in spinal cords from uninfected WT mice and infected RdRP transgenic mice (2 days post infection with Encephalomyocarditis Virus, EMCV)

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP â the 3Dpol protein of Theilerâs murine encephalomyelitis virus (TMEV) â suppress infection by diverse viral families. How the picornaviral RdRP transgene exerted antiviral protection in vivo was not known. To investigate the molecular mechanism, we determined gene expression profiles in spinal cords of WT and RdRP transgenic mice prior to (baseline) and after (2 days) infection with Encephalomyocarditis Virus (EMCV). Spinal cords from adult age-matched WT mice were harvested prior to (baseline) viral infection and RdRP transgenic spinal cords were harvested after (2 days) infection with Encephalomyocarditis Virus (EMCV). Total RNA was isolated (Qiagen RNeasy kit) and used as a template to synthesize biotinylated cRNA which was then hybridized to the HT Mouse Genome 430 2.0 GeneChip Array (Affymetrix).

2015-11-08 | E-GEOD-62757 | biostudies-arrayexpress

Differential gene expression in spinal cords from WT and transgenic RdRP mice during uninfected (baseline) conditions

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP – the 3Dpol protein of Theiler’s murine encephalomyelitis virus (TMEV) – suppress infection by diverse viral families. How the picornaviral RdRP transgene exerted antiviral protection in vivo was not known. To investigate the molecular mechanism, we determined gene expression profiles in spinal cords of WT and RdRP transgenic mice prior to (baseline) and after (2 days) infection with Encephalomyocarditis Virus (EMCV).

2015-11-08 | GSE62756 | GEO

Differential gene expression in spinal cords from uninfected WT mice and infected RdRP transgenic mice (2 days post infection with Encephalomyocarditis Virus, EMCV)

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP – the 3Dpol protein of Theiler’s murine encephalomyelitis virus (TMEV) – suppress infection by diverse viral families. How the picornaviral RdRP transgene exerted antiviral protection in vivo was not known. To investigate the molecular mechanism, we determined gene expression profiles in spinal cords of WT and RdRP transgenic mice prior to (baseline) and after (2 days) infection with Encephalomyocarditis Virus (EMCV).

2015-11-08 | GSE62757 | GEO

Differential gene expression in spinal cords from WT mice during uninfected (baseline) conditions and after (2 days post) infection with Encephalomyocarditis Virus (EMCV)

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP â the 3Dpol protein of Theilerâs murine encephalomyelitis virus (TMEV) â suppress infection by diverse viral families. How the picornaviral RdRP transgene exerted antiviral protection in vivo was not known. To investigate the molecular mechanism, we determined gene expression profiles in spinal cords of WT and RdRP transgenic mice prior to (baseline) and after (2 days) infection with Encephalomyocarditis Virus (EMCV). Spinal cords from adult age-matched, sex-matched WT mice were harvested prior to (baseline) and after (2 days post) EMCV viral infection. Total RNA was isolated (Qiagen RNeasy kit) and used as a template to synthesize biotinylated cRNA which was then hybridized to the HT Mouse Genome 430 2.0 GeneChip Array (Affymetrix).

2015-11-08 | E-GEOD-62758 | biostudies-arrayexpress

Differential gene expression in spinal cords from WT mice during uninfected (baseline) conditions and after (2 days post) infection with Encephalomyocarditis Virus (EMCV)

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP – the 3Dpol protein of Theiler’s murine encephalomyelitis virus (TMEV) – suppress infection by diverse viral families. How the picornaviral RdRP transgene exerted antiviral protection in vivo was not known. To investigate the molecular mechanism, we determined gene expression profiles in spinal cords of WT and RdRP transgenic mice prior to (baseline) and after (2 days) infection with Encephalomyocarditis Virus (EMCV).

2015-11-08 | GSE62758 | GEO

Differential gene expression in human THP-1 monocytes expressing the RdRP∆cat mutant transgene compared to THP-1 empty vector control cells

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP – the 3Dpol protein of Theiler’s murine encephalomyelitis virus (TMEV) – suppress infection by diverse viruses. Using mouse genetic studies, we determined that uninfected RdRP transgenic mice inherently induce an arsenel of prominent antiviral effectors and that this phenotype is MDA5-, MAVS- and IFNαβR-dependent. To determine the mechanism underlying MDA5 activation and induction of constitutive antiviral signaling by the picornaviral RdRP, we constructed mutant RdRP transgenes. First, we introduced pervasive, coding-neutral point mutations into the RdRP cDNA to maximally disrupt primary and secondary RNA structure (RdRP∆rna). Another mutant, RdRP∆cat, lacks catalytic activity due to alanine substitution of the key catalytic center triad aspartate residues (D233, D328, and D329), but is otherwise intact at the nucleotide and amino acid levels. The WT, RdRP∆rna, and RdRP∆cat versions of the RdRP transgenes were transduced with lentiviral vectors into human THP-1 monocytes, with RdRP mRNA transcription controlled by the Spleen Focus Forming Virus (SFFV) promoter. In parallel a control cell line transduced with a vector lacking any RdRP transgene (null THP-1) was generated.

2015-11-08 | GSE62754 | GEO

Differential gene expression in human THP-1 monocytes expressing the RdRP∆rna mutant transgene compared to THP-1 empty vector control cells

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP – the 3Dpol protein of Theiler’s murine encephalomyelitis virus (TMEV) – suppress infection by diverse viruses. Using mouse genetic studies, we determined that uninfected RdRP transgenic mice inherently induce an arsenel of prominent antiviral effectors and that this phenotype is MDA5-, MAVS- and IFNαβR-dependent. To determine the mechanism underlying MDA5 activation and induction of constitutive antiviral signaling by the picornaviral RdRP, we constructed mutant RdRP transgenes. First, we introduced pervasive, coding-neutral point mutations into the RdRP cDNA to maximally disrupt primary and secondary RNA structure (RdRP∆rna). Another mutant, RdRP∆cat, lacks catalytic activity due to alanine substitution of the key catalytic center triad aspartate residues (D233, D328, and D329), but is otherwise intact at the nucleotide and amino acid levels. The WT, RdRP∆rna, and RdRP∆cat versions of the RdRP transgenes were transduced with lentiviral vectors into human THP-1 monocytes, with RdRP mRNA transcription controlled by the Spleen Focus Forming Virus (SFFV) promoter. In parallel a control cell line transduced with a vector lacking any RdRP transgene (null THP-1) was generated.

2015-11-08 | GSE62755 | GEO

Differential gene expression in human THP-1 monocytes expressing the RdRP transgene (WT version) compared to THP-1 empty vector control cells

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP – the 3Dpol protein of Theiler’s murine encephalomyelitis virus (TMEV) – suppress infection by diverse viruses. Using mouse genetic studies, we determined that uninfected RdRP transgenic mice inherently induce an arsenel of prominent antiviral effectors and that this phenotype is MDA5-, MAVS- and IFNαβR-dependent. To determine the mechanism underlying MDA5 activation and induction of constitutive antiviral signaling by the picornaviral RdRP, we constructed mutant RdRP transgenes. First, we introduced pervasive, coding-neutral point mutations into the RdRP cDNA to maximally disrupt primary and secondary RNA structure (RdRP∆rna). Another mutant, RdRP∆cat, lacks catalytic activity due to alanine substitution of the key catalytic center triad aspartate residues (D233, D328, and D329), but is otherwise intact at the nucleotide and amino acid levels. The WT, RdRP∆rna, and RdRP∆cat versions of the RdRP transgenes were transduced with lentiviral vectors into human THP-1 monocytes, with RdRP mRNA transcription controlled by the Spleen Focus Forming Virus (SFFV) promoter. In parallel a control cell line transduced with a vector lacking any RdRP transgene (null THP-1) was generated.

2015-11-08 | GSE62753 | GEO

Mus musculus

Project description:Differential gene expression in spinal cords from uninfected WT mice and infected RdRP transgenic mice (2 days post infection with Encephalomyocarditis Virus, EMCV)

| PRJNA265054 | ENA

Differential gene expression in human THP-1 monocytes expressing the RdRP transgene (WT version) compared to THP-1 empty vector control cells

Project description:Previously, we reported that mice made transgenic for a picornaviral RdRP â the 3Dpol protein of Theilerâs murine encephalomyelitis virus (TMEV) â suppress infection by diverse viruses. Using mouse genetic studies, we determined that uninfected RdRP transgenic mice inherently induce an arsenel of prominent antiviral effectors and that this phenotype is MDA5-, MAVS- and IFNÎ±Î²R-dependent. To determine the mechanism underlying MDA5 activation and induction of constitutive antiviral signaling by the picornaviral RdRP, we constructed mutant RdRP transgenes. First, we introduced pervasive, coding-neutral point mutations into the RdRP cDNA to maximally disrupt primary and secondary RNA structure (RdRPârna). Another mutant, RdRPâcat, lacks catalytic activity due to alanine substitution of the key catalytic center triad aspartate residues (D233, D328, and D329), but is otherwise intact at the nucleotide and amino acid levels. The WT, RdRPârna, and RdRPâcat versions of the RdRP transgenes were transduced with lentiviral vectors into human THP-1 monocytes, with RdRP mRNA transcription controlled by the Spleen Focus Forming Virus (SFFV) promoter. In parallel a control cell line transduced with a vector lacking any RdRP transgene (null THP-1) was generated. RdRP cDNAs and a GFP-puromycin fusion protein selection marker were cloned into transfer constructs containing HIV LTRs, a small portion of gag, an RRE, and a cPPT. Transfer constructs were transfected into HEK 293T cells along with packaging construct Râ8.9 and envelope pseudotyping construct expressing VSV-G. RT-normalized amounts of vector were used to transduce THP-1 cells. After selection in puromycin, whole-genome expression profiling was performed on total RNA extracted from the different THP-1 lines.

2015-11-08 | E-GEOD-62753 | biostudies-arrayexpress

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