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KBM7 genetrap mutant cells stimulated with TNF-alpha and IFN-gamma

ABSTRACT: Transcriptional response of KBM7 cells to IFN-gamma or TNF-alpha was investigated in control or cells with genetrap insertions in JAK2 or TNFRS1A, respectively. The experiment shows that, as expected, cells lacking JAK2 or TNFRS1A expression display a severly blunted response to the tested cytokines. KBM7 genetrap mutant cells stimulated with TNF-alpha and IFN-gamma Sample WT_1 corresponds with the control sample for the IFN-gamma stimulation; Sample WT_2 corresponds with the control sample for the TNF-alpha stimulation. As the expected differences between the samples was large, only single replicates were performed for each condition

ORGANISM(S): Homo sapiens

SUBMITTER: Sebastian Nijman

PROVIDER: E-GEOD-48848 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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KBM7 genetrap mutant cells stimulated with TNF-alpha and IFN-gamma

Project description:Transcriptional response of KBM7 cells to IFN-gamma or TNF-alpha was investigated in control or cells with genetrap insertions in JAK2 or TNFRS1A, respectively. The experiment shows that, as expected, cells lacking JAK2 or TNFRS1A expression display a severly blunted response to the tested cytokines.

2013-08-09 | GSE48848 | GEO

Homo sapiens

Project description:KBM7 genetrap mutant cells stimulated with TNF-alpha and IFN-gamma

| PRJNA211962 | ENA

The effects of terbutaline or GW9508 on TNF-alpha and IFN gamma (TNF-alpha + IFN gamma) stimulation by HaCaT

Project description:G-protein coupled receptors (GPCRs) have diverse roles in physiological processes, including immunity. Gs-coupled GPCRs increase while Gi-coupled ones decrease intracellular cAMP. Previous studies suggest that, in epithelial cells, Gs-coupled GPCRs enhance whereas Gi-coupled GPCRs suppress pro-inflammatory immune responses. In order to examine the issue, we chose beta2 adrenergic receptor and GPR40 as representatives of Gs- and Gi- coupled GPCRs, respectively, and examined their effects on TNF-alpha and IFN-gamma-(TNF-alpha + IFN-gamma) induced gene expression by HaCaT. We used microarrays to detail the global changes of gene expression induced by a beta2 adrenergic receptor agonist terbutaline or GPR40 agonist GW9508 pre-treatment in TNF-alpha + IFN-gamma - stimulated HaCaT cells. HaCaT cells were pre-treated with terbutaline or GW9508, TNF-alpha + IFN-gamma were then added, and cultured for another 24 h. Cells were then used for RNA extraction and hybridization on Affymetrix microarrays. We sought to clarify changes in gene expression after 1) TNF-alpha + IFN-gamma, 2) TNF-alpha + IFN-gamma + terbutaline, and 3) TNF-alpha + IFN-gamma + GW9508 treatment. To this end, we set 4 groups of samples; 1) unstimulated group, 2) TNF-alpha + IFN-gamma-stimulated group, 3) TNF-alpha + IFN-gamma + terbutaline-stimulated group, and 4) TNF-alpha + IFN-gamma + GW9508-stimulated group. In each group, HaCaT cells were stimulated in triplicate wells (n=3).

2010-12-01 | E-GEOD-20297 | biostudies-arrayexpress

Increased Cell Surface Fas Expression is Necessary to Sensitize Lung Fibroblasts to Fas Ligation-Induced Apoptosis: Implications for Fibroblast Accumulation in Idiopathic Pulmonary Fibrosis.

Project description:Idiopathic pulmonary fibrosis (IPF) is associated with the accumulation of collagen-secreting fibroblasts and myofibroblasts in the lung parenchyma. Many mechanisms contribute to their accumulation, including resistance to apoptosis. In previous work, we showed that exposure to the pro-inflammatory cytokines, TNF-α and IFN-γ reverses fibroblast resistance to apoptosis. The goal of this study was to investigate the underlying mechanism. Based on an initial interrogation of the transcriptomes of unstimulated and TNF-α and IFN-γ-stimulated primary lung fibroblasts and the lung fibroblast cell line, MRC5, we show here that among Fas-signaling pathway molecules, Fas expression was increased ~6-fold in an NF-κB and p38mapk-dependent fashion. Prevention of the increase in Fas expression using Fas siRNAs blocked the ability of TNF-α and IFN-γ to sensitize fibroblasts to Fas ligation induced-apoptosis; while enforced adenovirus-mediated Fas overexpression was sufficient to overcome basal resistance to Fas-induced apoptosis. Examination of lung tissues from IPF patients revealed low to absent staining of Fas in fibroblastic cells of fibroblast foci. Collectively, these findings suggest that increased expression of Fas is necessary and sufficient to overcome the resistance of lung fibroblasts to Fas-induced apoptosis. They also suggest that approaches aimed at increasing Fas expression by lung fibroblasts and myofibroblasts may be therapeutically relevant. To investigate the mechanism by which TNF-α and IFN-γ reprogram fibroblasts from resistance to sensitivity to Fas-ligation-induce apoptosis, we exposed human primary lung fibroblasts from an IPF patient (FS087) and non-disease control subject (N78) and the human fetal lung fibroblast cell lung (MRC-5) to TNF-α (10 ng/ml) and IFN-γ (50 U/ml) for 36 hr and analyzed changes in their transcriptomes using Affymetrix microarrays.

2011-01-13 | E-GEOD-26594 | biostudies-arrayexpress

Transcription profiling of cultured mouse astrocytes in response to stimulation with CCM (complete cytokine mix: TNF-alpha, IL1-beta and IFN-gamma) at 4hr and 16hr time points

Project description:Transcriptional activation of cultured mouse astrocytes in response to stimulation with CCM (complete cytokine mix: TNF-alpha, IL1-beta and IFN-gamma) at 4hr and 16hr time points.

2005-12-01 | E-MEXP-321 | biostudies-arrayexpress

miR-146a effect in IFNg and TNFa induced keratinocytes

Project description:The aim of the study was to describe the function of miR-146a in human skin keratinocytes in relation to chronic skin diseases. miR-146a precursor and the control were transfected into human primary keratinocytes treated with IFN-gamma, TNF-alpha or left untreated. mRNA expression profiles of each conditions were detected.

2014-01-01 | E-MTAB-1739 | biostudies-arrayexpress

Homo sapiens

Project description:The effects of terbutaline or GW9508 on TNF-alpha and IFN gamma (TNF-alpha + IFN gamma) stimulation by HaCaT

| PRJNA125329 | ENA

Transcription profiling of mouse pancreatic islets from wild type and DcR3 transgenic mice to investigate primary non-function (PNF) in islet transplantation

Project description:The islet primary non-function (PNF) is a serious problem in islet transplantation. In this study, we investigated whether DcR3-secreting transgenic (Tg) islets could reduce PNF. We generated transgenic mice expressing human DcR3. The transgenically expressed DcR3 protected islets from IFN-gama plus IL-1beta, or TNF-alpha plus IL-1beta-induced dysfunction and apoptosis in vitro. The Tg islets presented significantly reduced PNF after transplantation. <br><br> Three independent batches of islet isolation were carried out. For each batch, islets were obtained from 4 Tg and 4 WT mice, and pooled respectively. The pooled islets (Tg or WT) were then divided into 4 groups: 2 were cultured in the presence of IFN-gamma (0.5 ug/ml) plus IL-1beta (0.5 ng/ml) with 1 harvested at 24 h and 1 harvested at 48 h; 2 were cultured in the presence of TNF-alpha (100 ng/ml) plus IL-1beta (0.5 ng/ml) with 1 harvested at 24 h and 1 harvested at 48 h. Each treatment employed 3 chips using RNA from 3 different batches of islet isolation. For each treatment, genes with a mean signal strength difference above 2-fold between Tg and WT islets were selected for reverse PCR confirmation.

2009-08-15 | E-MEXP-2306 | biostudies-arrayexpress

The effects of terbutaline or GW9508 on TNF-alpha and IFN gamma (TNF-alpha + IFN gamma) stimulation by HaCaT

2010-12-01 | GSE20297 | GEO

Pla2g6-dependent cytokine signaling in MIN6 cells

Project description:Analysis of MIN6 murine beta cell line transfected with Pla2g6 RNAi and treated with pro-inflammatory cytokines TNF-alpha, IL-1beta and IFN-gamma.

2024-02-08 | PXD017863 | Pride

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