Herpes Simplex Virus 1
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA338711 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR11952800.fastq.gz | Fastqsanger.gz | |||
| SRR11952801.fastq.gz | Fastqsanger.gz | |||
| SRR11952802.fastq.gz | Fastqsanger.gz | |||
| SRR11952803.fastq.gz | Fastqsanger.gz | |||
| SRR11952804.fastq.gz | Fastqsanger.gz |
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Project description:Herpes simplex virus type 1 (HSV-1) is a 152 Kb double stranded DNA alpha-herpesvirus, which establishes long life latent infection in sensory neurons. Most of our knowledge regarding HSV-1 latency comes from in vivo studies using small animal models, mainly rodents and rabbits, which are not naturally infected by HSV-1. Furthermore, these animal models do not fully recapitulate the species specific effects of human HSV-1 infection. Human cellular models utilize trigeminal ganglia removed from cadavers or, alternatively, neuron-like cells derived from cancerous cell lines that do not fully reflect effects on normal human neurons. This limitation poses the need to develop an in vitro model to investigate molecular details of the mechanisms underlying latency and reactivation in human neurons. Induced pluripotent stem (iPS) cell technologies offer an unprecedented opportunity to generate unlimited supplies of neurons and the facility to manipulate such cells in vitro. In this study, we developed an in vitro HSV-1 infection model in human iPS-derived neural progenitor cells (NPCs) and neurons, which displays the main hallmarks of latency defined in animal models and in humans. Induced pluripotent stem (iPS) cells were generated from human skin biopsy samples
2014-05-02 | E-GEOD-46041 | biostudies-arrayexpress
Project description:Herpes simplex virus mutants lacking the vhs gene are severely attenuated in animal models of pathogenesis and exhibit reduced growth in primary cell culture. As a result of these properties vhs-deleted virus have been proposed as live-attenuated viruses. Despite these findings and their implications for vacccines, the mechanisms by which vhs promotes infection in cell culture and in vivo are not understood. In this study we demonstrate that vhs-deficent viruses replicate to reduced levels in interferon(IFN)- primed cells. Furthermore, vhs-defective viruses induce increased levels of IFN? and IFN?-stimulated genes, and increased levels of eIF2? phosphorylation in infected cells. In addition, we demonstrate a generalized over-expression of viral RNAs following infection with a vhs-deficient virus. This suggests increased expression of IFN pathway inducing double stranded RNA, a potent pathogen-associated molecular pattern (PAMP). Together these data show that vhs likely functions to reduce innate immune responses and thereby acts as critical determinant of viral pathogenesis. Keywords: time course, genetic modification Time course (1,3,6,9 & 12h) of HSV infected mouse embryo fibroblasts. Wild type (KOS) virus is co-hybridized with vhs null virus (NHB). Each time-point is hybridized in quadruplicate.
2008-04-03 | E-GEOD-10962 | biostudies-arrayexpress
Project description:Since the genome of herpes simplex virus 1 (HSV-1) was first sequenced more than 30 years ago, the 84 genes it was thought to encode have been intensively studied. Here, we unravel the full complement of viral transcription and translation during lytic infection with base-pair resolution by computational integration of multi-omics data. This includes a total of 201 viral transcripts and 296 open reading frames (ORFs), comprising all known large ORFs, 55 large novel ORFs including a novel spliced ORF in the ICP0 locus that initiates from a non-AUG start codon and a novel strongly translated ORF in the ICP34.5 locus as well as multiple short ORFs. By defining viral gene modules, we link translation of ORFs to the expression of transcript isoforms. This explained translation of the vast majority of viral ORFs as well as N-terminal extensions and truncations thereof. We show that N-terminal extensions initiating from non-AUG start codons govern subcellular protein localization and packaging of key viral regulators and structural proteins. This work has great implications for future functional studies, vaccine design and novel oncolytic therapies.
2020-05-22 | PXD013407 | Pride
Project description:Herpes simplex virus type-1 (HSV-1) is wide-spread dsDNA virus that establishes life-long latency and causes diverse severity of symptoms. In this study, HEK 293T cells with low Toll-like receptor (TLR) and Stimulator of interferon genes protein (STING) expression was infected with HSV-1 and subjected to quantitative proteomic analysis. By using a subcellular fractionation strategy and high-performance mass spectrometry, a total of 5,982 host proteins were quantified, of which 484 proteins were differentially regulated. Bioinformatics analysis indicated that multiple signaling pathways were involved in HSV-1 infection.
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Project description:Herpes simplex virus mutants lacking the vhs gene are severely attenuated in animal models of pathogenesis and exhibit reduced growth in primary cell culture. As a result of these properties vhs-deleted virus have been proposed as live-attenuated viruses. Despite these findings and their implications for vacccines, the mechanisms by which vhs promotes infection in cell culture and in vivo are not understood. In this study we demonstrate that vhs-deficent viruses replicate to reduced levels in interferon(IFN)- primed cells. Furthermore, vhs-defective viruses induce increased levels of IFNβ and IFNβ-stimulated genes, and increased levels of eIF2α phosphorylation in infected cells. In addition, we demonstrate a generalized over-expression of viral RNAs following infection with a vhs-deficient virus. This suggests increased expression of IFN pathway inducing double stranded RNA, a potent pathogen-associated molecular pattern (PAMP). Together these data show that vhs likely functions to reduce innate immune responses and thereby acts as critical determinant of viral pathogenesis. Keywords: time course, genetic modification
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2017-08-30 | GSE95715 | GEO
Project description:Chronic viral infections are difficult to treat and new approaches, particularly those involving enhancing immune responses are needed. Herpes simplex virus (HSV) establishes latency, reactivates frequently, and breakthrough reactivation can occur despite suppressive antiviral therapy. Virus-specific T cells are important to control HSV, and activated T cells require increased metabolism of glutamine for their proliferation. We found that treatment of HSV-1 latently infected mice and HSV-2 infected guinea pigs with supplemental oral glutamine reduced virus reactivation. Transcriptome analysis of mice treated with glutamine showed that several interferon (IFN)-γ inducible genes were upregulated. Unlike wild-type mice, supplemental glutamine was ineffective in reducing the rate of HSV-1 reactivation in IFN-γ knock-out mice. Mice treated with glutamine had higher numbers of HSV-specific IFN-γ producing CD8 T cells in latently infected ganglia. Thus, glutamine may enhance the IFN-γ-associated immune response and reduce the rate of reactivation of latent virus infection.
2017-08-30 | GSE95713 | GEO
Project description:Chronic viral infections are difficult to treat and new approaches, particularly those involving enhancing immune responses are needed. Herpes simplex virus (HSV) establishes latency, reactivates frequently, and breakthrough reactivation can occur despite suppressive antiviral therapy. Virus-specific T cells are important to control HSV, and activated T cells require increased metabolism of glutamine for their proliferation. We found that treatment of HSV-1 latently infected mice and HSV-2 infected guinea pigs with supplemental oral glutamine reduced virus reactivation. Transcriptome analysis of mice treated with glutamine showed that several interferon (IFN)-γ inducible genes were upregulated. Unlike wild-type mice, supplemental glutamine was ineffective in reducing the rate of HSV-1 reactivation in IFN-γ knock-out mice. Mice treated with glutamine had higher numbers of HSV-specific IFN-γ producing CD8 T cells in latently infected ganglia. Thus, glutamine may enhance the IFN-γ-associated immune response and reduce the rate of reactivation of latent virus infection.
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