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Human Beta-Defensin 3 attenuates the pro-inflammatory effects of KDO2-Lipid A (KLA) at 6 hour

ABSTRACT: We examine the global effect of hBD3 on transcription in TLR4-stimulated macrophages and for the first time show that hBD3 inhibits the transcription of critical pro-inflammatory genes. Among the repressed genes we detect significant enrichment of groups involved in the positive regulation of NFkappaB including components of Toll-like receptor signaling pathways. Total RNA obtained from bone marrow derived macrophages (BMDM) that have been subjected to 6 hour treatment with KLA, KLA&hBD3, hBD3 or untreated. There are 3 biological replicates per group.

ORGANISM(S): Mus musculus

SUBMITTER: Graeme Grimes

PROVIDER: E-GEOD-25871 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Human Beta-Defensin 3 attenuates the pro-inflammatory effects of LPS at 1 hour

Project description:We examine the global effect of hBD3 on transcription in TLR4-stimulated macrophages and for the first time show that hBD3 inhibits the transcription of critical pro-inflammatory genes. Among the repressed genes we detect significant enrichment of groups involved in the positive regulation of NFkappaB including components of Toll-like receptor signaling pathways. Bone marrow derived macrophages from 3 separate mice were used for each treatment condition. ie macrophages from 3 mice were left untreated, macrophages from 3 mice were treated with LPS, macrophages from 3 mice were treated with LPS and hBD3, macrophages from 3 mice were treated with hBD3. We examined the differences in gene expression between each treatment group.

2012-01-01 | E-GEOD-25870 | biostudies-arrayexpress

Human Beta-Defensin 3 attenuates the pro-inflammatory effects of LPS at 1 hour

2012-01-01 | GSE25870 | GEO

Human Beta-Defensin 3 attenuates the pro-inflammatory effects of KDO2-Lipid A (KLA) at 6 hour

2012-01-01 | GSE25871 | GEO

Effect of hBD3 on transcription in TLR4-stimulated macrophages

Project description:This SuperSeries is composed of the following subset Series: GSE25870: Human Beta-Defensin 3 attenuates the pro-inflammatory effects of LPS at 1 hour GSE25871: Human Beta-Defensin 3 attenuates the pro-inflammatory effects of KDO2-Lipid A (KLA) at 6 hour Refer to individual Series

2012-01-01 | E-GEOD-25873 | biostudies-arrayexpress

Host cell subversion by Toxoplasma GRA16, a HAUSP- and PP2A-interacting protein exported to the host cell nucleus

Project description:Toxoplasma gondii multiplies inside a parasitophorous vacuole in the host cell. Several parasite proteins have been described that hijack host signaling pathways, which mostly originate from the rhoptry organelles. We report here the identification and characterization of GRA16, the first dense granule protein shown to be exported through the parasitophorous vacuole membrane and to reach the host cell nucleus. Transcriptomic analysis revealed that GRA16 positively modulates the expression of host genes involved in cell-cycle progression and the p53 tumor suppressor pathway. We show that GRA16 directly binds two host enzymes, the deubiquitinase HAUSP and the phosphatase PP2A, and that GRA16 alters p53 protein levels in a HAUSP-dependent manner and induces the nuclear translocation of the PP2A holoenzyme. Therefore GRA16 is a novel regulator of the HAUSP/p53 pathway and together with GRA15, emerge as a subfamily of new dense granule proteins exported beyond the tachyzoites-hosting vacuole to subvert the host transcriptome. Mouse bone marrow-derived macrophages (BMDM) or Human foreskin fibroblasts (HFFs) were infected with the following Toxoplasma gondii strains: - RHku80 WT versus RHku80(deltaGRA16) mutant (in BMDM) - Pruku80 WT versus Pruku80(deltaGRA16) mutant (in BMDM) - RHku80 WT versus RHku80(deltaGRA16) mutant (in HFF)

2013-02-06 | E-GEOD-38779 | biostudies-arrayexpress

Proteomic analysis of GM-CSF and M-CSF polarized bone marrow derived macrophages

Project description:Bone marrow cells were isolated, primed with M-CSF (M-BMDM) or GM-CSF (GM-BMDM) and cultured for 7 days. The proteomic difference between GM-BMDM and M-BMDM were analyzed to describe the phenotye and function of two types of macrophages.

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Proteomics characterisation of the L929 cell supernatant and its role in BMDM differentiation

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2021-04-13 | PXD021026 | Pride

Knockout of the selenocysteine tRNA (Trsp) gene in mouse macrophage

Project description:Comparative analysis of gene expression in bone marrow-derived macrophages (BMDM) from trsp knockout mice (Trspfl/fl-LysM-Cre+/-) and Control (Trspfl/fl-LysM-Cre-/-) mice. Selenium, a micronutrient whose deficiency in the diet causes immune dysfunction and inflammatory disorders, exerts its physiological effects partly in the form of selenium-containing proteins (selenoproteins). Incorporation of selenium into the amino acid selenocysteine (Sec), and subsequently into selenoproteins, is mediated by Sec tRNA[Ser]Sec. To identify macrophage-specific selenoprotein function, we generated mice with the Sec tRNA[Ser]Sec gene specifically deleted in myeloid cells. These mutant mice were devoid of the selenoproteome in macrophages, yet exhibited largely normal inflammatory responses. However, selenoprotein deficiency led to aberrant expression of extracellular matrix-related genes, and diminished migration of macrophages in a protein gel matrix. Therefore, selenium status may affect immune defense and tissue homeostasis through its effect on selenoprotein expression and the trafficking of tissue macrophages. We have generated mice in which we have selectively removed the selenocysteine tRNA gene (trsp) in macrophages under the control of LysM-Cre promoter. Microarray analysis was performed on RNA samples taken from bone marrow-derived macrophages in knockout and control mice. 1. Control unstimulated 2. Knockout unstimulated 3. Control lipopolysaccharide (LPS) stimulated (4h) 4. Knockout LPS stimulated (4h). Three replicates for each condition. Thus, a total of 12 samples.

2009-12-21 | E-GEOD-15610 | biostudies-arrayexpress

Downstream Molecules of YKL-40 in Regulating Apoptosis in BMDM

Project description:An iTRAQ-based proteomics analysis was performed on BMDM to screen out the potential downstream target molecules of YKL-40 in regulating macrophage apoptosis.

2022-02-15 | PXD028305 | Pride

Gene expression of Bone marrow-derived macrophages isolated in ERR-alpha knock-out mice

Project description:We investigated the molecular mechanisms by which ERRM-NM-1 negatively regulates TLR-signaling pathways. To examine this, we performed global gene expression analysis of ERRM-NM-1+/+ and ERRM-NM-1-/- BMDMs after LPS stimulation. Microarray analysis revealed that several genes encoding various TLR-negative regulators were downregulated in LPS-stimulated ERRM-NM-1-/- BMDMs, when compared with ERRM-NM-1+/+ BMDMs Bone marrow-derived macrophages were isolated in 6~8 week old male C57BL6 mice and then divided into 4 groups 1) Solvent control-treated ERRM-NM-1+/+ BMDM 2) LPS-treated ERRM-NM-1+/+ BMDM 3) Solvent control-treated ERRM-NM-1-/- BMDM 4) LPS-treated ERRM-NM-1-/- BMDM

2014-06-17 | E-GEOD-58515 | biostudies-arrayexpress

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