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Tiled Array Experiment of Murine Gammaherpesvirus 68 Transcripts Upon TPA-Stimulated Reactivation From Latency

ABSTRACT: Murine A20 B cells harboring latent MHV68 were treated with TPA and RNA expression was examined over a 24 hour timecourse experiment.

ORGANISM(S): Mus musculus Murid gammaherpesvirus 4

PROVIDER: GSE35865 | GEO | 2012/02/16

SECONDARY ACCESSION(S): PRJNA155705

REPOSITORIES: GEO

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Tiled Array Experiment of Murine Gammaherpesvirus 68 Transcripts Upon TPA-Stimulated Reactivation From Latency

Project description:Murine A20 B cells harboring latent MHV68 were treated with TPA and RNA expression was examined over a 24 hour timecourse experiment. Study includes 4 samples- an untreated sample and reactivation samples isolated at 6, 12, and 24 hours after treatment of a latent MHV68+ B cell line with TPA.

2012-02-16 | E-GEOD-35865 | biostudies-arrayexpress

Tiled Array Experiment of Murine Gammaherpesvirus 68 Transcripts In Newly Infected Fibroblasts

Project description:Murine NIH3T3 fibroblasts were infected with MHV68 and RNA expression was examined over an 18 hour timecourse experiment.

2012-02-16 | GSE35863 | GEO

Tiled Array Experiment of Murine Gammaherpesvirus 68 Transcripts In Newly Infected Fibroblasts

Project description:Murine NIH3T3 fibroblasts were infected with MHV68 and RNA expression was examined over an 18 hour timecourse experiment. Study includes 8 samples isolated at 0, 2, 4, 6, 8, 10, 12, and 18 hours after infection of NIH3T3 fibroblasts with murine gammaherpesvirus 68 at a multiplicity of infection of 10.0.

2012-02-16 | E-GEOD-35863 | biostudies-arrayexpress

Tiled Microarray Identification of Novel Viral Transcript Structures and Distinct Transcriptional Profiles During Two Modes of Productive Murine Gammaherpesvirus 68 Infection.

Project description:We applied a custom tiled microarray to examine murine gammaherpesvirus 68 (MHV68) polyadenylated transcript expression in a timecourse of de novo infection of fibroblast cells and following phorbol ester-mediated reactivation from a latently-infected B cell line. During de novo infection, all ORFs were transcribed and clustered into four major temporal groups that were overlapping, yet distinct from clusters based on the phorbol ester-stimulated B cell reactivation timecourse. High-density transcript analysis at two-hour intervals during de novo infection mapped gene boundaries with a 20-nt resolution, including a previously undefined ORF73 transcript and the MHV68 ORF63 homolog of KSHV vNLRP1. ORF6 transcript initiation was mapped by tiled array and confirmed by 5' RACE. The ~1.3 kb region upstream of ORF6 was responsive to lytic infection and MHV68 RTA, identifying a novel RTA-responsive promoter. Transcription in intergenic regions consistent with the previously defined expressed genomic regions was detected during both types of productive infection. We conclude that the MHV68 transcriptome during de novo fibroblast infection and upon phorbol ester-stimulated B cell reactivation is dynamic and distinct, highlighting the need to evaluate further transcript structure and the context-dependent molecular events that govern viral gene expression during chronic infection. This SuperSeries is composed of the following subset Series: GSE35863: Tiled Array Experiment of Murine Gammaherpesvirus 68 Transcripts In Newly Infected Fibroblasts GSE35865: Tiled Array Experiment of Murine Gammaherpesvirus 68 Transcripts Upon TPA-Stimulated Reactivation From Latency Refer to individual Series

2012-02-16 | E-GEOD-35866 | biostudies-arrayexpress

Tiled Microarray Identification of Novel Viral Transcript Structures and Distinct Transcriptional Profiles During Two Modes of Productive Murine Gammaherpesvirus 68 Infection.

2012-02-16 | GSE35866 | GEO

RNAseq analysis of B cells inducible for murine gammaherpesvirus 68 reactivation

Project description:RTA, the viral Replication and Transcription Activator, is essential for rhadinovirus lytic gene expression upon de novo infection and reactivation from latency. LPS/TLR4 engagement enhances rhadinovirus reactivation. We developed the HE-RIT cell line, a latent murine A20 B cell inducible for Flag-RTA expression and murine gammaherpesvirus 68 reactivation. LPS acted as a second stimulus to drive virus reactivation from latency in the context of induced expression of FLAG-RTA. We applied RNAseq to examine for genome-wide changes in viral gene expression in response to doxycycline-induced RTA-FLAG, alone or in combination with LPS.

2017-02-18 | GSE94238 | GEO

Autophagy Genes Enhance Murine Gammaherpesvirus 68 Reactivation from Latency by Preventing Virus-Induced Systemic Inflammation.

Project description: Not available

| S-EPMC4714357 | biostudies-literature

Latent gammaherpesvirus 68 infection induces distinct transcriptional changes in different organs

Project description:Previous studies identified a role for latent herpesvirus infection in cross-protection to infection and exacerbation of chronic inflammatory diseases. Here, we compared the gene expression signature from livers, spleens and brains of mice infected with wild-type gammaherpesvirus 68 (MHV68), a mutant virus defective in the establishment of latency (ORF73.stop) or mockulum. We identified over 600 genes differentially expressed in organs of mice latently infected with MHV68 and found distinct sets of genes linked to different pathways were altered in spleen compared to liver. Several of the most differentially expressed latency-specific genes (e.g. IFNγ, Cxcl9, Ccl5) are associated with known latency-specific phenotypes. RNA was extracted from livers, spleens and brains of 7-9 week old male C57Bl/6 mice infected with gammaherpesvirus 68 (MHV68), a virus defective in establishment of latency (ORF73.stop) or mockulum. RNA from 3-4 mice per treatment was pooled and analyzed by M430 2.0 Affymetrix Gene Chip. Three biologic replicates were analyzed for all conditions, except mock livers, for which four biologic replicates were analyzed.

2013-10-18 | E-GEOD-51365 | biostudies-arrayexpress

Latent gammaherpesvirus 68 infection induces distinct transcriptional changes in different organs

2013-10-18 | GSE51365 | GEO

RTA Occupancy of the Origin of Lytic Replication during Murine Gammaherpesvirus 68 Reactivation from B Cell Latency.

Project description: Not available

| S-EPMC5371897 | biostudies-literature