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Profiling of gene expression in TLR2 and TLR3 activated macrophages

ABSTRACT: We have identified more than 50 genes that have upregulated expression in TLR3 activated (PMI-1,2), but have downregulated expression in TLR2 activated (PMP-1,2) macrophages, as compared to control cells (PMC-1,2)

ORGANISM(S): Mus musculus

PROVIDER: GSE36891 | GEO | 2012/03/28

SECONDARY ACCESSION(S): PRJNA157015

REPOSITORIES: GEO

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Profiling of gene expression in TLR2 and TLR3 activated macrophages

Project description:We have identified more than 50 genes that have upregulated expression in TLR3 activated (PMI-1,2), but have downregulated expression in TLR2 activated (PMP-1,2) macrophages, as compared to control cells (PMC-1,2) identify genes that have upregulated expression in TLR3 activated (PMI-1,2), but have downregulated expression in TLR2 activated (PMP-1,2) macrophages, as compared to control cells (PMC-1,2)

2012-03-27 | E-GEOD-36891 | biostudies-arrayexpress

Transcriptome analysis of TLR2-activated Th17 cells

Project description:Transcriptome analysis of TLR2-activated Th17 cells

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Human monocyte activation with NOD2L vs. TLR2/1L

Project description:human blood monocytes were isolated, activated and harvested at several timepoints In this study, we identified genes that were differentially expressed in human monocytes activated with eiter NOD2L and/or TLR2/1L. human blood monocytes were purified from healthy donors by Ficoll, Percoll and adherence. Monocytes were activated using NOD2L (MDP) and the TLR2/1L (19kD, triacylated peptide). Cells were harvested before activation (0h) and 6h and 24h after stimulation with ligands.

2012-03-15 | E-GEOD-34156 | biostudies-arrayexpress

Complete TLR3 deficiency

Project description:The objective of this study is to study the Toll-like receptor 3 (TLR3)-dependent gene expression in human fibroblast cells and peripheral blood mononuclear cells (PBMCs) Fibroblast cells and PBMCs from donors with autosomal recessive (AR) complete TLR3 deficiency and autosomal dominant (AD) partial TLR3 deficiency were collected for microarray analysis to measure the transcriptional responsiveness of TLR3 in fibroblast and PBMCs. A total of 3 healthy controls, 1 AD TLR3-deficient patient, 1 AR TLR3-deficient patient, 1 AR UNC-93B-deficient patient, 1 MyD88 deficient patien were used in this study. The fibroblast cells were cultured in DMEM medium supplemented with 10% fetal calf serum (FCS). The PBMCs were cultured in RPMI medium complemented with 10% FCS. Different kinetics (2 hours and 8 hours) of poly(I:C) (25ug/ml, purchased from Amersham) stimulations were performed, aiming to define TLR3-inducible genes in these human cells. A stimulation of IL-1β (20ng/ml, purchased from R&D system Inc.) was used as a positive activation control with same kinetics of stimulations. A total of one million cells per stimulation were used for fibroblasts, and around 1.5 million cells per stimulation for PBMCs.

2011-11-02 | E-GEOD-30951 | biostudies-arrayexpress

Human monocyte activation with NOD2L vs. TLR2/1L

2012-03-15 | GSE34156 | GEO

Assessment of the impact of the TLR3 L412F variant in terms of TLR3-sensitive transcript induction

Project description:we assessed the impact of TLR3 L412F at endogenous cellular levels upon double stranded RNA (dsRNA) stimulation, by performing RNA-sequencing in primary fibroblasts from individuals homozygous for the ancestral allele (n =2) or homozygous for TLR3 L412F (n = 4) upon extracellular Poly(I:C) stimulation that activates the TLR3 pathway. The average response of TLR3 L412F homozygotes was significantly decreased (mean Δ log2 fold-change = 0.93; Wilcoxon p <10-16) compared to that of cells with the ancestral allele, approaching that of TLR3-deficient cells, used as negative control.

2023-01-13 | GSE216304 | GEO

Mus musculus

Project description:Profiling of gene expression in TLR2 and TLR3 activated macrophages

| PRJNA157015 | ENA

Transcription profiling of mouse primary mesangial cells stimulated with DNA and RNA ligands

Project description:Extrarenal viral infections commonly trigger glomerulonephritis mostly in association with immune complex disease. The immunoglobulin component of immune complexes can activate glomerular cell Fc receptors but whether complexed viral nucleic acids contribute to glomerular inflammation remains unknown. Glomerular mesangial cells express TLR3 but lack TLR7-9, hence, it is unclear whether mesangial cells can recognize and respond to viral ssRNA or DNA. Here we studied the immune responses activated by 3P-RNA (5'Triphosphate RNA) and Non-CpG DNA (Double stranded DNA) in primary mesangial cells (PMC). We used microarrays to detail the global programme of gene expression that induced by 3P-RNA and Non-CpG DNA. Experiment Overall Design: PMC were stimulated with 3P-RNA and Non-CpG DNA for 6 hours and then total RNA was isolated for hybridization to MOE430_2 arrays.

2008-10-21 | E-GEOD-11898 | biostudies-arrayexpress

Genome-wide maps of TLR3 activated human keratinocytes compared with control human keratinocytes

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Crosslinking Proteomics Indicates Effects of Simvastatin on the TLR2 interactome and Reveals ACTR1A as a Novel Regulator of the TLR2 Signal Cascade

Project description:Toll-like receptor 2 (TLR2) is a pattern recognition receptor that, upon ligation by microbial molecules, interacts with other proteins to initiate pro-inflammatory responses by the cell. Statins (hydroxymethylglutaryl coenzyme A reductase inhibitors), drugs widely prescribed to reduce hypercholesterolemia, are reported to have both pro- and anti-inflammatory effects upon cells. Some of these responses are presumed to be driven by effects on signaling proteins at the plasma membrane, but the underlying mechanisms remain obscure. We reasoned that profiling the effect of statins on the repertoire of TLR2-interacting proteins might provide novel insights into the mechanisms by which statins impact inflammation. In order to study the TLR2 interactome, we designed a co-immunoprecipitation (IP)-based cross-linking proteomics study. A hemagglutinin (HA)-tagged-TLR2 transfected HEK293 cell line was utilized to precipitate the TLR2 interactome upon cell exposure to the TLR2 agonist Pam3CSK4 and simvastatin, singly and in combination. To stabilize protein interactors, we utilized two different chemical cross-linkers with different spacer chain lengths. Proteomic analysis revealed important combinatorial effects of simvastatin and Pam3CSK4 on the TLR2 interactome. After stringent data filtering, we identified alpha-centractin (ACTR1A), an actin-related protein and subunit of the dynactin complex, as a potential interactor of TLR2. The interaction was validated using biochemical methods. RNA interference studies revealed an important role for ACTR1A in induction of pro-inflammatory cytokines. Taken together, we report that statins remodel the TLR2 interactome, and we identify ACTR1A, a part of the dynactin complex, as a novel regulator of TLR2-mediated immune signaling pathways.

2019-06-24 | PXD012759 | Pride

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