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

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

ORGANISM(S): Mus musculus Murid gammaherpesvirus 4

PROVIDER: GSE35863 | GEO | 2012/02/16

SECONDARY ACCESSION(S): PRJNA155731

REPOSITORIES: GEO

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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 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.

2012-02-16 | GSE35865 | GEO

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 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 SubSeries listed below.

2012-02-16 | GSE35866 | GEO

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

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

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

Identification and analysis of expression of novel microRNAs of murine gammaherpesvirus 68

Project description:Murine gammaherpesvirus 68 (MHV-68) is closely related to Epstein-Barr virus (EBV) and Kaposi’s sarcoma-associated herpesvirus (KSHV) and provides a small animal model to study the pathogenesis of gammaherpesvirus (γHV) infections. To completely explore the potential of the MHV-68 system for the investigation of gHV miRNAs, it would be desirable to know the number and expression patterns of all miRNAs encoded by MHV-68. By using small RNA deep sequencing, we systematically investigated the MHV-68 miRNA expression profiles in both lytically and persistently infected cells. In addition to the known nine MHV-68 miRNAs, we identified six novel MHV-68 miRNA genes and analyzed the expression levels of all MHV-68 miRNAs. Furthermore, we also characterized the cellular miRNA expression signatures in MHV-68 infected versus non-infected NIH3T3 fibroblasts and in TPA-treated versus non-treated S11 cells. We found that mmu-mir-15b and mmu-mir-16 are highly upregulated upon MHV-68 infection of NIH3T3 cells, indicating a potential role of cellular miRNAs during MHV-68 infection. Our data will aid to fully explore the functions of gHV miRNAs.

2010-07-15 | GSE22938 | GEO

Identification and analysis of expression of novel microRNAs of murine gammaherpesvirus 68

Project description:Murine gammaherpesvirus 68 (MHV-68) is closely related to Epstein-Barr virus (EBV) and KaposiM-bM-^@M-^Ys sarcoma-associated herpesvirus (KSHV) and provides a small animal model to study the pathogenesis of gammaherpesvirus (M-NM-3HV) infections. To completely explore the potential of the MHV-68 system for the investigation of gHV miRNAs, it would be desirable to know the number and expression patterns of all miRNAs encoded by MHV-68. By using small RNA deep sequencing, we systematically investigated the MHV-68 miRNA expression profiles in both lytically and persistently infected cells. In addition to the known nine MHV-68 miRNAs, we identified six novel MHV-68 miRNA genes and analyzed the expression levels of all MHV-68 miRNAs. Furthermore, we also characterized the cellular miRNA expression signatures in MHV-68 infected versus non-infected NIH3T3 fibroblasts and in TPA-treated versus non-treated S11 cells. We found that mmu-mir-15b and mmu-mir-16 are highly upregulated upon MHV-68 infection of NIH3T3 cells, indicating a potential role of cellular miRNAs during MHV-68 infection. Our data will aid to fully explore the functions of gHV miRNAs. A mouse fibroblast cell line infected with/without MHV-68 and a MHV-68 infected mouse B lymphoma cell line treated with/without TPA (4 samples in total) were examined.

2010-07-15 | E-GEOD-22938 | biostudies-arrayexpress

Identification of murine gammaherpesvirus 68 miRNA-mRNA hybrids reveals miRNA target conservation among gammaherpesviruses including host translation and protein modification machinery

Project description:Gammaherpesviruses, including the human pathogens Epstein-Barr virus and Kaposi’s sarcoma-associated herpesvirus, establish lifelong latent infection in B cells and are associated with a variety of tumors. In addition to protein coding genes, these viruses encode numerous microRNAs (miRNAs) within their genomes. While putative host targets of EBV and KSHV miRNAs have been previously identified, the specific functions of these miRNAs during in vivo infection are largely unknown. Murine gammaherpesvirus 68 is a natural pathogen of rodents that is genetically related to both EBV and KSHV, and thus serves as an excellent model for the study of EBV and KSHV elements such as miRNAs in the context of infection and disease. However, MHV68 the specific targets of miRNAs remain unknown. Using a technique known as quick CLASH (crosslinking, ligation, and sequencing of hybrids), we have now identified specific, Ago-associated mRNA targets of MHV68 miRNAs during lytic infection, latent infection and reactivation from latency.

2019-05-27 | GSE124687 | GEO

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