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Expression data from Botryococcus terribilis ethanol extract (BTEE)-treated RAW264 cells

ABSTRACT: Gene expression profiling reveals anti-inflammatory effects of BTEE on lipopolysaccharide (LPS)-induced murine RAW264 cells We evaluated the pretreatment effect of BTEE on LPS-induced inflammation in RAW264 cells. Pretreatment with BTEE could significantly attenuate nitric oxide (NO) production and LPS-induced release of inflammatory mediators in RAW264 cells.

ORGANISM(S): Mus musculus Mus

PROVIDER: GSE221665 | GEO | 2023/04/19

REPOSITORIES: GEO

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Genome-wide translational analysis of RAW264 macrophages by ribosome profiling

Project description:Purpose: The aim is to analyze the translational kinetics of the basal and LPS-stimulated conditions of RAW264 macrophages focusing on ribosome density Method: RAW264 macrophages were cultured at 3.0 x 10^5 cells/ml in media (DMEM, 2mM Glutamine, 10% FBS, 100 units penicillin and 100Âµg streptomycin/mL) 24 hours prior to harvest. It was confirmed that the confluency of cells never surpassed 80 ~ 90%. Cell were harvested in their basal state or LPS stimulated condition (100 ng/ml for 30 min) and ribosome profiling (Ribo-Seq) and high-throughput mRNA sequencing (mRNA-Seq) were conducted. Ribosome protected fragments (RPF) were sequenced and the density was normalized by mRNA abundance. Result and conclusion: We discovered where in the ribosome translational arrest ocurs and how this happens. Translational stall was striking at A-site and P-site of ribosomal complex. The other arrest site was observed 3 to 5 residues away from the peptidyl transfer center of the exit tunnel, in which ribosomal density and hydrophobicity showed a significant negative correlation. mRNA and RPF of RAW264 macrophages were deep-sequenced with two independent biological replicates by Ion PGM sequencer

2015-11-01 | E-GEOD-60930 | biostudies-arrayexpress

Genome-wide translational analysis of RAW264 macrophages by ribosome profiling

Project description:Purpose: The aim is to analyze the translational kinetics of the basal and LPS-stimulated conditions of RAW264 macrophages focusing on ribosome density Method: RAW264 macrophages were cultured at 3.0 x 10^5 cells/ml in media (DMEM, 2mM Glutamine, 10% FBS, 100 units penicillin and 100µg streptomycin/mL) 24 hours prior to harvest. It was confirmed that the confluency of cells never surpassed 80 ~ 90%. Cell were harvested in their basal state or LPS stimulated condition (100 ng/ml for 30 min) and ribosome profiling (Ribo-Seq) and high-throughput mRNA sequencing (mRNA-Seq) were conducted. Ribosome protected fragments (RPF) were sequenced and the density was normalized by mRNA abundance. Result and conclusion: We discovered where in the ribosome translational arrest ocurs and how this happens. Translational stall was striking at A-site and P-site of ribosomal complex. The other arrest site was observed 3 to 5 residues away from the peptidyl transfer center of the exit tunnel, in which ribosomal density and hydrophobicity showed a significant negative correlation.

2016-08-31 | GSE60930 | GEO

Expression data of Tfe3/Tfeb- or GFP-knocked-down RAW264 macrophages treated with or without iron

Project description:In an attempt to elucidate the role of MiT/TFE families in the iron-mediated phenotypic changes of macrophages, we performed DNA microarray analysis using ferric chloride-stimulated RAW264 cells transfected with Tfe3/Tfeb or GFP. A number of genes upregulated by ferric chloride treatment in siGFP-transfected RAW264 cells were decreased in siTfe3/Tfeb-transfected cells, suggesting MiT/TFE families are involved in phenotypic changes of macrophages induced by iron.

2021-01-27 | GSE157472 | GEO

LPS upregulates palmitoylated enzymes of the phosphatidylinositol cycle. An insight from proteomic studies.

Project description:The studies aim at revealing changes of the level of fatty-acylated proteins induced by LPS in RAW264 macrophage-like cells

2017-12-15 | PXD007918 | Pride

Ethanol Extract of <i>Aurantiochytrium mangrovei</i> 18W-13a Strain Possesses Anti-inflammatory Effects on Murine Macrophage RAW264 Cells.

Project description: Not available

| S-EPMC6168648 | biostudies-literature

Expression data from mouse liver infected with Ft LVS (without or with LPS pretreatment)

Project description:Background: It has been shown previously that administration of Francisella tularensis (Ft) LVS lipopolysaccharide (LPS) protects mice against subsequent challenge with Ft LVS and blunts the pro-inflammatory cytokine response. Methods: To investigate further the molecular mechanisms that underlie Ft LVS LPS-mediated protection, we profiled global hepatic gene expression following Ft LVS LPS or saline pretreatment and subsequent Ft LVS challenge using Affymetrix arrays. Results: A large number of genes (> 3000) were differentially expressed at 48 hours post-infection. The degree of modulation of inflammatory genes by infection was clearly attenuated by LPS-pretreatment in the surviving mice. However, LPS alone had a subtle but significant effect on the gene expression profile of the uninfected mice. By employing gene set enrichment analysis, we discovered significant up-regulation of peroxisome proliferator activated receptors (PPARs) and their target genes in LPS-treated liver. Conclusions: We hypothesize that the LPS-induced blunting of pro-inflammatory response in mouse is, in part, mediated by PPARs (alpha and gamma).

2010-01-31 | GSE16207 | GEO

Docosahexaenoic acid attenuates metabolic dysfunctions induced by lipopolysaccharide in BV-2 microglial cells

Project description:Microglial cell activation has been linked to many neurodegenerative diseases. Upon stimulation by lipopolysaccharide (LPS), a number of proteins involved in inflammatory and oxidative pathways are activated. Production of nitric oxide has been regarded as a signature marker of inflammatory responses. Our recent studies demonstrated the effects of docosahexaenoic acid (DHA) to inhibit the LPS-induced inflammatory responses in BV-2 microglial cells. DHA also can upregulate the anti-oxidative pathway involving nuclear factor erythroid 2-Like 2 (Nrf2) and synthesis of heme oxygenase-1 (HO-1), a potent anti-oxidative enzyme. In order to further understand the proteins involved, this study used a label-free quantitative proteomics approach to examine effects of DHA and LPS on proteins and signaling pathways in microglial cells.

2020-04-20 | PXD013086 | Pride

Expression data from mouse liver infected with Ft LVS (without or with LPS pretreatment)

2010-02-21 | E-GEOD-16207 | biostudies-arrayexpress

Protection against maternal infection-associated fetal growth restriction: proof-of-concept with a microbial-derived immunomodulator

Project description:Infection-associated inflammatory stress during pregnancy is the most common cause of fetal growth restriction. Treatment strategies for protection of at-risk mothers are limited. Employing mouse models, we demonstrate that oral treatment during pregnancy with a microbial-derived immunomodulator (OM85), markedly reduces risk for fetal loss/growth restriction resulting from maternal challenge with bacterial LPS or influenza. Focusing on LPS exposure, we demonstrate that the key molecular indices of maternal inflammatory stress (RANTES, MIP-1a, CCL2, KC, G-CSF) in gestational tissues/serum, are abrogated by OM85 pretreatment. Systems-level analyses of RNASeq data revealed that OM85 pretreatment selectively tunes LPS-induced activation in maternal gestational tissues for attenuated expression of TNF-, IL1-, and IFNg- driven proinflammatory networks, without constraining Type1-IFN-associated networks central to first-line anti-microbial defense. This study suggests that broad-spectrum protection-of-pregnancy against infection-associated inflammatory stress, without compromising capacity for efficient pathogen eradication, represents an achievable therapeutic goal.

2016-10-24 | GSE85414 | GEO

Array-based genome-wide transcriptome analysis of IL-4-treated RAW264 macrohage cell line

Project description:The role of G-protein-coupled receptors (GPCRs) in the macrophage polarization remains not well understood. In this study, we illuminate the role of Gpr137b, a GPCR expressed strongly in macrophages, in macrophage polarization. We used RAW264 as a mouse macrophage-like cell line and generated Gpr137b-knockout (KO) cell clones using the CRISPR/Cas9 genome editing system. The Gpr137b-KO and wildtype cells were the treated with interleukin-4 (IL-4) to induce M2 polarization, and their gene expression was analyzed using microarrays.

2018-10-01 | GSE117578 | GEO

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