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Unknown,Transcriptomics,Genomics,Proteomics

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Analysis of global gene expression profiles of hPAF1 deficient A549 cells

ABSTRACT: This SuperSeries is composed of the following subset Series: GSE35265: Analysis of global gene expression profiles of hPAF1 deficiency on unstimulated A549 cells GSE35266: Analysis of global gene expression profiles of hPAF1 deficient A549 cells during infection with H1N1 influenza A virus or vesicular stomatitis virus (VSV) GSE35267: Analysis of global gene expression profiles of hPAF1 deficient A549 cells during stimulation with PR8/?NS1 influenza virus, IFN?1 or Poly(I:C) Refer to individual Series

ORGANISM(S): Homo sapiens

SUBMITTER: ivan marazzi

PROVIDER: E-GEOD-35268 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Analysis of global gene expression profiles of hPAF1 deficiency on unstimulated A549 cells

Project description:Viral infection is commonly associated with virus-driven hijacking of host proteins. We describe a novel mechanism by which influenza virus impacts host cells through the interaction of influenza NS1 protein with the infected cell epigenome. We show that the NS1 protein of influenza A H3N2 targets the transcription elongation PAF1 complex (hPAF1C). We demonstrate that binding of NS1 to hPAF1C results in suppression of hPAF1C-mediated transcriptional elongation. More importantly,in the following data sets, we show that hPAF1 plays a crucial role in the antiviral response. Loss of hPAF1C reduces antiviral gene expression and reduces inducible transcription of target genes after stimulation with viral RNA analogue poly(I:C), vesicular stomatitis virus (VSV), exogenous recombinant IFN(beta) and influenza virus (H1N1). This study underscores the importance of hPAF1C in controlling inducible antiviral gene expression. A549 cells were untreated (no siRNA) or treated with control siRNA-treated and hPAF1 siRNA. Total RNA was isolated with the Qiagen RNeasy mini kit. 200ng of total RNA per sample was used to prepare biotin-labeled RNA using MessageAmp™ Premier RNA Amplification Kit (Applied Biosystems) and hybridized to HumanHT-12 v4 Expression BeadChips (Illumina). Data analysis was performed using the GeneSpring GX11.0 software (Agilent Technologies). These samples were then used for comparisons with stimulated cells (See series 1) 3 biological replicates per condition

2012-02-15 | E-GEOD-35265 | biostudies-arrayexpress

Analysis of global gene expression profiles of hPAF1 deficient A549 cells during infection with H1N1 influenza A virus or vesicular stomatitis virus (VSV)

Project description:Viral infection is commonly associated with virus-driven hijacking of host proteins. We describe a novel mechanism by which influenza virus impacts host cells through the interaction of influenza NS1 protein with the infected cell epigenome. We show that the NS1 protein of influenza A H3N2 targets the transcription elongation PAF1 complex (hPAF1C). We demonstrate that binding of NS1 to hPAF1C results in suppression of hPAF1C-mediated transcriptional elongation. More importantly,in the following data sets, we show that hPAF1 plays a crucial role in the antiviral response. Loss of hPAF1C reduces antiviral gene expression and reduces inducible transcription of target genes after stimulation with viral RNA analogue poly(I:C), vesicular stomatitis virus (VSV), exogenous recombinant IFN(beta) and influenza virus (H1N1). This study underscores the importance of hPAF1C in controlling inducible antiviral gene expression. Untreated (no siRNA), control siRNA-treated and hPAF1 siRNA-treated A549 cells were stimulated with A/Puerto Rico/8/1934 influenza virus (H1N1) or vesicular stomatitis virus (VSV). Total RNA was isolated with the Qiagen RNeasy mini kit. 200ng of total RNA per sample was used to prepare biotin-labeled RNA using MessageAmp™ Premier RNA Amplification Kit (Applied Biosystems) and hybridized to HumanHT-12 v4 Expression BeadChips (Illumina). Data analysis was performed using the GeneSpring GX11.0 software (Agilent Technologies). 3 biological replicates per condition

2012-02-15 | E-GEOD-35266 | biostudies-arrayexpress

Analysis of global gene expression profiles of hPAF1 deficient A549 cells during stimulation with PR8/∆NS1 influenza virus, IFNβ1 or Poly(I:C)

Project description:Viral infection is commonly associated with virus-driven hijacking of host proteins. We describe a novel mechanism by which influenza virus impacts host cells through the interaction of influenza NS1 protein with the infected cell epigenome. We show that the NS1 protein of influenza A H3N2 targets the transcription elongation PAF1 complex (hPAF1C). We demonstrate that binding of NS1 to hPAF1C results in suppression of hPAF1C-mediated transcriptional elongation. More importantly,in the following data sets, we show that hPAF1 plays a crucial role in the antiviral response. Loss of hPAF1C reduces antiviral gene expression and reduces inducible transcription of target genes after stimulation with viral RNA analogue poly(I:C), vesicular stomatitis virus (VSV), exogenous recombinant IFN(beta) and influenza virus (H1N1). This study underscores the importance of hPAF1C in controlling inducible antiviral gene expression. Untreated (no siRNA), control siRNA-treated and hPAF1 siRNA-treated A549 cells were stimulated with PR8/∆NS1 influenza virus (MOI 1), IFNβ1 (500U/mL) or Poly(I:C) (2ug/mL). Total RNA was isolated with the Qiagen RNeasy mini kit. 200ng of total RNA per sample was used to prepare biotin-labeled RNA using MessageAmp™ Premier RNA Amplification Kit (Applied Biosystems) and hybridized to HumanHT-12 v4 Expression BeadChips (Illumina). Data analysis was performed using the GeneSpring GX11.0 software (Agilent Technologies). 3 biological replicates per condition

2012-02-15 | E-GEOD-35267 | biostudies-arrayexpress

Suppression of the antiviral response by an influenza "histone mimic"

2013-07-01 | E-GEOD-35774 | biostudies-arrayexpress

Centrosomal ALIX regulates mitotic spindle orientation by modulating astral microtubule dynamics

Project description:The orientation of the mitotic spindle (MS) is tightly regulated, but the molecular mechanisms are incompletely understood. Here we report a novel role for the multifunctional adaptor protein ALG-2-interacting protein X (ALIX) in regulating MS orientation in addition to its well-established role in cytokinesis. We show that ALIX is recruited to the pericentriolar material (PCM) of the centrosomes and promotes correct orientation of the MS in asymmetrically dividing Drosophila stem cells and epithelial cells, and symmetrically dividing Drosophila and human epithelial cells. ALIX-deprived cells display defective formation of astral microtubules (MTs), which results in abnormal MS orientation. Specifically, ALIX is recruited to the PCM via Drosophila Spindle defective 2 (DSpd-2)/Cep192, where ALIX promotes accumulation of g-tubulin and thus facilitates efficient nucleation of astral MTs. In addition, ALIX promotes MT stability by recruiting Microtubule Associated Protein 1S (MAP1S), which stabilizes newly formed MTs. Altogether, our results demonstrate a novel evolutionarily conserved role of ALIX in providing robustness to the orientation of the MS by promoting astral MT formation during asymmetric and symmetric cell division.

2018-06-04 | PXD009747 | Pride

Mastermind-like protein 1 regulates DNA methylation and expression of early developmental gene clusters in human embryonic kidney cells

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-10-08 | E-GEOD-62178 | biostudies-arrayexpress

Genes regulated by SDC1

Project description:We used Affymetrix HG U133 Plus 2.0 GeneChips to compare the transcriptome of MDA-MB-231 cells transfected with SDC1-siRNA against negative control siRNA-transfected cells. MDA-MB-231 cells were transfected with SDC1-siRNA or negative control siRNA. Subsequently, total RNA was collected and processed for analysis using Affymetrix microarrays. Three independent replicates were prepared for each comparison group.

2013-08-01 | E-GEOD-23362 | biostudies-arrayexpress

Analysis of global gene expression profiles of A549 cells treated with SETX siRNA under basal conditions

Project description:Untransfected (no siRNA), control siRNA or SETX siRNA treated A549 cells were analyzed for gene expression differences under basal conditions 3 Biological Replicates per condition

2015-03-30 | E-GEOD-52933 | biostudies-arrayexpress

In vitro knockdown of LAMP3 leads to down-regulation of interferon-inducible genes

Project description:We identified LAMP3 as a key driver gene of anti-viral subnetwork genes in cervical cancer patients. Therefore we tested this prediction using an in vitro system. This is the first direct demonstration of LAMP3 regulatory role in interferon-dependent immune response. We first pretreated HeLa cells with control siRNA or LAMP3 siRNA overnight and then added 1 ng/ml of interferon alpha to the cultures for 3 and 4 days

2011-12-29 | E-GEOD-29009 | biostudies-arrayexpress

Analysis of global gene expression profiles of A549 cells treated with SETX siRNA upon Influenza A/PR/8/34(ΔNS1) Infection

Project description:Untransfected (no siRNA), control siRNA or SETX siRNA treated A549 cells were infected with A/Puerto Rico/8/1934(ΔNS1) for 4 hours 3 Biological Replicates per condition

2015-03-30 | E-GEOD-52932 | biostudies-arrayexpress

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