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Gene induction by Dex, IL-9 and CCL-1 in BW5147 mouse T cell lymphoma

ABSTRACT: The aim of this work was to determine the genes and mechanisms involved in IL-9- and CCL1-mediated protection against glucocorticoid-induced apoptosis. We made the hypothesis that the expression of the really critical mediators could be regulated in a reciprocal way by Dex on the one hand and anti-apoptotic cytokines such as IL-9 and CCL1 on the other hand.Therefore, we performed a comprehensive study of the genes expressed by BW5147 cells stimulated with or without Dex, IL-9 and CCL1, taking advantage of the Affymetrix microarray technology. Keywords: cytokine and dexamethasone stimulation One million BW5147 cells were stimulated with 100 ng/ml of dexamethasone and/or with 100 U/ml of IL-9 or CCL1 for eight hours. RNA was then extracted for hybridization on Affymetrix microarrays. This experiment was performed in duplicates .

ORGANISM(S): Mus musculus

SUBMITTER: Amel Tounsi

PROVIDER: E-GEOD-13823 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Gene induction by Dex, IL-9 and CCL-1 in BW5147 mouse T cell lymphoma

Project description:The aim of this work was to determine the genes and mechanisms involved in IL-9- and CCL1-mediated protection against glucocorticoid-induced apoptosis. We made the hypothesis that the expression of the really critical mediators could be regulated in a reciprocal way by Dex on the one hand and anti-apoptotic cytokines such as IL-9 and CCL1 on the other hand.Therefore, we performed a comprehensive study of the genes expressed by BW5147 cells stimulated with or without Dex, IL-9 and CCL1, taking advantage of the Affymetrix microarray technology. Keywords: cytokine and dexamethasone stimulation

2011-05-25 | GSE13823 | GEO

A single cell atlas of frozen shoulder capsule identifies features associated with inflammatory fibrosis resolution (Bulk RNA-seq of capsular fibroblasts co-cultured with MDMs)

Project description:Bulk transcriptomic data of shoulder capsule fibroblasts isolated from frozen shoulder co-cultured with Dexamethasone (DEX) or LPS treated monocyte-derived macrophages (MDM), which were isolated from blood cones and stimulated with M-CSF, for 72 hours. The stimulated MDMs have been characterised as MerTKhigh(DEX) and MerTKlow(LPS). Unstimulated, DEX and LPS stimulated MDM were co-cultured with ex vivo shoulder capsule-derived fibroblasts from patients with frozen shoulder. Fibroblasts were then FACS isolated and RNA-sequencing analysis performed. As an additional control ex vivo fibroblasts were also profiled without co-culture (stimulation=”none”).

2023-10-02 | E-MTAB-12312 | biostudies-arrayexpress

Effect of Dexamethasone, IL-1B and Dex+IL-1B on gene expression in Th17 cells

Project description:Effect of Dexamethasone, IL-1B and Dex+IL-1B on gene expression in Th17 cells

| PRJNA961106 | ENA

The effect of a dexamethasone and a FK506 on the induction of chemokines in human mast cells

Project description:Mast cells produce a large amount of several chemokines after cross-linking of FceRI and participate in the pathogenesis of allergic diseases. The objective of this study was to comprehensively investigate FceRI-mediated chemokine induction in human mast cells and the effect of a corticosteroid (dexamethasone) and a calcineurin inhibitor (FK506). Human peripheral blood-derived mast cells were stimulated with anti-IgE antibody in the presence of dexamethasone or FK506. Expression of eight chemokines was significantly induced in mast cells by anti-IgE stimulation. Induction of CCL2, CCL7, CXCL3 and CXCL8 by anti-IgE was significantly inhibited by dexamethasone. In contrast, induction of CCL1, CCL3, CCL4 and CCL18 was significantly inhibited by FK506. Combination of dexamethasone and FK506 suppressed production of all chemokines by anti-IgE stimulation. These results suggest that corticosteroids and calcineurin inhibitors inhibit expression of distinct subsets of chemokines and a combination of these drugs almost completely suppresses the induction of all chemokine genes in human mast cells in response to FceRI-dependent stimulation. Human peripheral blood-derived mast cells were stimulated with anti-IgE antibody in the presence of dexamethasone or FK506. Gene expression profiles were evaluated using GeneChip Human Genome U133 plus 2.0 probe arrays (Affymetrix).

2009-03-12 | E-GEOD-15174 | biostudies-arrayexpress

The autophagy receptor p62/SQSTM1 mediates anti-inflammatory actions of the selective glucocorticoid receptor modulator CpdA in macrophages

Project description:Glucocorticoids are widely used to treat inflammatory disorders. Prolonged use results in side effects including osteoporosis, diabetes and obesity. The selective glucocorticoid receptor (GR) modulator Compound A (CpdA) exhibits an inflammation-suppressive effect, largely in absence of detrimental side effects. To understand the mechanistic differences between the classic glucocorticoid dexamethasone (DEX) and CpdA, we looked for proteins oppositely regulated using an unbiased proteomics approach. We found that the autophagy receptor p62 but not GR mediates the anti-inflammatory action of CpdA in macrophages. CpdA drives the upregulation of p62 by recruiting the NRF2 transcription factor to its promoter. Contrarily, the classic GR ligand dexamethasone recruits GR to p62 and other NRF2 controlled gene promoters, resulting in gene downregulation. Both DEX and CpdA are able to induce autophagy, albeit in a cell-type and time-dependent manner. Suppression of LPS-induced IL-6 and MCP1 genes in bone marrow-derived macrophages by CpdA is hampered upon p62 silencing, confirming that p62 is essential for the anti-inflammatory capacity of CpdA. Together, these results demonstrate how off-target mechanisms of selective GR ligands may establish a more efficient anti-inflammatory therapy

2022-06-03 | PXD007793 | Pride

Setd1a and Setd1b loss-of-function in murine macrophages

Project description:Setd1bKO primary murine bone marrow-derived macrophages (BMDMs) were treated with lipopolysaccharide (LPS) or dexamethasone and LPS (Dex+LPS) and gene expression differences in response to treatment analysed by PolyA RNA-Sequencing. No Dex-treatment dependent gene expression differences were identified. Setd1aDel/+ Raw264.7 cells with reduced Setd1a expression were analyzed with regards to their reponse to Dex when inflammatorily challenged with LPS by mRNA-Seq. We observed reduced GR-dependent gene acivation in Setd1a hypermorphic Raw264.7 cells. Wild type and Setd1aDel/+ Raw264.7 cells were treated with LPS or LPS and interferon beta (IFNB1) to show the IFNB1-dependent loss of gene expression in LPS-stimulated Setd1aDel/+ cells.

2020-12-31 | GSE137944 | GEO

The effect of a dexamethasone and a FK506 on the induction of chemokines in human mast cells

2009-03-12 | GSE15174 | GEO

Expression data of liver samples of dex or vehicle treated wildtype and HDAC6- knockout C57Bl/6 mice respectively

Project description:In the present study, we investigated the importance of histone deacetylase 6 (HDAC6) for glucocorticoid receptor (GR) mediated effects on glucose metabolism, and its potential as a therapeutic target for the prevention of glucocorticoid (GC)-induced diabetes. Dexamethasone (dex)-induced hepatic glucose output and GR translocation were analysed in wildtype (wt) and HDAC6-deficient (HDAC6ko) mice. The effect of the specific HDAC6-inhibitor tubacin was analysed in-vitro. Wt and HDAC6ko mice were subjected to 3 weeks dex treatment before analysis of glucose and insulin tolerance. HDAC6ko mice showed impaired dex-induced hepatic GR translocation. Accordingly, dex induced expression of a large number of hepatic genes was significantly attenuated in mice lacking HDAC6 and by tubacin in-vitro. Glucose output of primary hepatocytes from HDAC6ko mice was diminished. A significant improvement of dex-induced whole-body glucose intolerance as well as insulin resistance in HDAC6ko mice compared to wt littermates was observed. The present study demonstrates that HDAC6 is an essential regulator of hepatic GC stimulated gluconeogenesis and impairment of whole body glucose metabolism through modification of GR nuclear translocation. Selective pharmacological inhibition of HDAC6 may provide a future therapeutic option against the pro-diabetogenic actions of GCs. In this dataset, we include the expression data obtained from isolated RNA of dissected mouse livers using wildtype and HDAC6 deficient animals which were treated over a timespan of 3 weeks with 1mg/kg dexamethasone and vehicle respectively. These data are used to show the hdac6-deficiency mediated attenuation of several dexamethasone induced genes. 12 samples in total were analyzed. 3 samples of different animals of each group (wt vehicle, wt dexamethasone, hdac6ko vehicle and hdac6ko dexamethasone)

2011-12-07 | E-GEOD-34229 | biostudies-arrayexpress

Arabidopsis Forever Young Flower (FYF): 35S::FYF+GR

Project description:Transcriptional profiling of 35S::FYF+GR transgenic plant's floral buds(DEX treat) compared to 35S::FYF+GR transgenic plant's floral buds(mock treat). DEX : Dexamethasone

2015-06-01 | GSE69411 | GEO

Transcriptional heterogeneity of mast cells and basophils upon activation.

Project description:Mast cells and basophils are developmentally related cells whose activation is a hallmark of allergy. Functionally, mast cells and basophils overlap in their ability to produce several mediators, including histamine and granule proteases, but studies have increasingly demonstrated non-redundant roles. To characterize the transcriptional heterogeneity of mast cells and basophils upon their activation, we performed large-scale comparative microarrays of murine bone marrow–derived mast cells (BMMCs) and basophils (BMBs) at rest, upon an adaptive-type activation (IgE crosslinking), or upon an innate-type activation (IL-33 stimulation). Hierarchical clustering demonstrated that BMMCs and BMBs shared specific activation-associated transcriptional signatures but differed in others, both between cell type and between activation mode. In BMMCs, IgE crosslinking upregulated 785 genes including Egr2, Ccl1, and Fxyd6, while IL-33 stimulation induced 823 genes including Ccl1, Egr2, and Il1b. Focused bioinformatics pathway analysis demonstrated that IgE activation aligned with processes such as oxidative phosphorylation, angiogenesis, and the p53 pathway. The IL-33–activated transcriptome was enriched in genes commonly altered by NF-B in response to TNF, by IL-6 via STAT3, and in response to IFN. Furthermore, BMBs activated via IgE crosslinking selectively induced immune response genes Ccl1, Il3, and Il2 compared to IL-33–stimulated BMBs. Principal-component analysis revealed key cell- and activation-specific clustering. Overall, our data demonstrate that mast cells and basophils have cell- and activation-specific transcriptional responses and suggest that context-specific gene networks and pathways may shape how the immune system responds to allergens and innate cytokines.

2017-03-17 | GSE96696 | GEO

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