GEO DataSets

Temporal analysis of monocyte-derived dendritic cells (DCs) treated with lipopolysaccharide (LPS), an agonist for toll-like receptor (TLR) 4, the synthetic imidazoquinoline resiquimod R848, an agonist for TLR8, or both. Provides insight into the synergistic effect of TLR agonists in activating DCs.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 4 agent, 3 time sets

Platform:

GPL570

Series:

GSE2706

21 Samples

Download data

(Submitter supplied) Toll like receptors (TLRs) sense microbial products and initiate adaptive immune responses by activating dendritic cells (DCs). Since pathogens may contain several agonists we asked whether different TLRs may synergize in DC activation. We report that in human and mouse DC TLR3 or TLR4 potently synergize with TLR7, TLR8 or TLR9 in the induction of selected cytokine genes. Upon synergistic stimulation, IL-12, IL-23 and Delta-4 are induced at levels 50-100 fold higher than those induced by optimal concentrations of single agonists, leading to enhanced and sustained TH1 polarizing capacity. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS1249

Platform:

GPL570

21 Samples

Download data

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by array

Platforms:

GPL10333 GPL4134

6 Samples

Download data: GPR, TXT

(Submitter supplied) T helper type 2 (Th2) responses are crucial for defense against infections by helminths and are responsible for the development of allergic reactions that can lead to severe clinical disorders, such as asthma or anaphylaxis, and ultimately to death. The induction of Th2 responses requires a specific activation process, triggered by specialized dendritic cells (DCs), by which naive CD4+ Th0 cells acquire the capacity to produce Th2 cytokines. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL4134

4 Samples

Download data: GPR

(Submitter supplied) T helper type 2 (Th2) responses are crucial for defense against infections by helminths and are responsible for the development of allergic reactions that can lead to severe clinical disorders, such as asthma or anaphylaxis, and ultimately to death. The induction of Th2 responses requires a specific activation process, triggered by specialized dendritic cells (DCs), by which naive CD4+ Th0 cells acquire the capacity to produce Th2 cytokines. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10333

2 Samples

Download data: TXT

(Submitter supplied) Pro-inflammation triggered by microbial lipopolysaccharide (LPS) through Toll-like receptor (TLR) 4 in the presence of interferon (IFN)-g induces cytokine secretion in dendritic cells (DCs) tightly regulated by a defined differentiation program. This DC differentiation is characterized by a dynamic immune activating but also tolerance inducing phenotype associated with irreversible down-modulation of cytokines. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

8 Samples

Download data: CEL, CHP

(Submitter supplied) Psoriasis is a complex inflammatory disease resulting from the activation of T helper (Th) 1 and Th17 cells. Recent evidence suggests that abnormal activation of Toll-like receptors (TLRs) 7, 8 and 9 contributes to the initiation and maintenance of psoriasis. We have evaluated the effects of TLR antagonists on the gene expression profile in an IL-23-induced skin inflammation model in mice. Psoriasis-like skin lesions were induced in C57BL/6 mice by intradermal injection of IL-23 in the dorsum. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

20 Samples

Download data: CEL

(Submitter supplied) IRF3 is one of the most critical transcription factor in down stream of pattern recognition receptors (such as toll-like receptor and RIG-I-like receptor) signalling pathway. IRF3 is known to induce the expression of type I IFN gene upon virus infection. To furter examine the role of IRF3 in virus-induced gene expression, we preformed microarray analysis in IRF3-/- peritoneal macrophages infected with VSV, and found that IRF3 suppresses the expression of Il12b gene.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

3 Samples

Download data: CEL, CHP

(Submitter supplied) Toll-like receptor and RIG-I-like receptor classs may evoke or instruct a distinct type of response that is more reflective of the pathogen encountered. Although this issue may be critical to a better understanding of the regulation of immune responses to microbial infections, it has not been addressed through a direct, side-by-side comparison of the two receptor classes. To address this, we performed microarray analysis of mRNAs from peritoneal macrophages stimulated with a synthetic B-form DNA, poly(dA-dT)・poly(dT-dA) ( B-DNA) or a CpG-B oligonucleotide, which respectively activates RLRs or TLR9, and identified B-DNA inducible genes and CpG-B inducible genes.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

3 Samples

Download data: CEL, CHP

(Submitter supplied) Plasmacytoid dendritic cells (pDCs) are a rare type of dendritic cells that exist antiviral functions in response to toll-like receptors (TLRs). We here report TLR4 activated pDCs similar to TLR7/8 stimulation. Despite the high resemblance, we found the unique genes that were activated by TLR4 activation.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28038

45 Samples

Download data: TXT

(Submitter supplied) This series compares gene expression in chicken peripheral blood lymphocyte (PBL) derived macrophages following stimulation with either XL10 E. coli or S. typh LPS over an 8 hour time course (0,1,2,4,and 8 hours). For the late time points, the stimuli were removed after 2 hours and fresh media was added for the remaining time. Keywords: time-course

Organism:

Gallus gallus

Type:

Expression profiling by array

Platform:

GPL1461

6 Samples

Download data

(Submitter supplied) Pairwise comparison of expression of alternate splicing in the Tlr4 pathway using custom designed Combimatix oligonucleotide arrays. Bone marrow derived macrophages (BMMs) from C57Bl6/J mice (6 wks male) exposed to LPS (10ng/ml) for 7hrs. Keywords: Response to LPS

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL3364

4 Samples

Download data

(Submitter supplied) Target specific short single-stranded DNA (ssDNA) molecules, called aptamers, are auspicious ligands for numerous in vivo applications. However, aptamers are synthetic molecules, which might be recognized by the immune cells in vivo and induce an activation of the innate immune system. Thus, immune activation potential of synthetic ssDNA oligonucleotides (ODNs) was determined using a well established closed-loop circulation model. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL13667

21 Samples

Download data: CEL