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Genome-wide analysis of mouse macrophages stimulated with IL-4 (Biogel and thioglycollate macrophages) (Affymetrix)

ABSTRACT: Analysis of alternative activation of macrophages at gene expression level. The study forms part of a wider study where we compare the effects of IL-4 in different human and mouse macrophages. Our results support the notion that in vitro culture conditions greatly affect the macrophage response to IL-4. Total RNA obtained from Thioglycollate and Biogel elicited peritoneal macrophages exposed to 20 ng/ml of IL-4 for 18 hours.

ORGANISM(S): Mus musculus

PROVIDER: GSE35436 | GEO | 2012/09/29

SECONDARY ACCESSION(S): PRJNA156057

REPOSITORIES: GEO

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Genome-wide analysis of mouse macrophages stimulated with IL-4 (Biogel and thioglycollate macrophages) (Affymetrix)

Project description:Analysis of alternative activation of macrophages at gene expression level. The study forms part of a wider study where we compare the effects of IL-4 in different human and mouse macrophages. Our results support the notion that in vitro culture conditions greatly affect the macrophage response to IL-4. Total RNA obtained from Thioglycollate and Biogel elicited peritoneal macrophages exposed to 20 ng/ml of IL-4 for 18 hours. Biogel and thioglycollate elicited macrophages were stimulated with the Th2 cytokine IL-4, for RNA extraction and hybridization on Affymetrix microarrays.

2012-09-29 | E-GEOD-35436 | biostudies-arrayexpress

MicroRNA expression in thioglycollate and alternatively activated

Project description:Macrophage activation must be tightly controlled to prevent overzealous responses that cause self-damage. MicroRNAs have been shown to promote classical macrophage activation by blocking concomitant anti-inflammatory signals and transcription factors, but can also place restraints on activation by preventing excessive TLR-signalling. In contrast, the microRNA profile associated with alternatively activated macrophages and their role in regulating wound-healing or anti-helminthic responses has not yet been described. Utilizing an in vivo model of alternative activation, in which adult Brugia malayi nematodes are surgically implanted in the peritoneal cavity of mice, we examined the profile of microRNA expression in these alternatively activated macrophages and compared this to alternatively activated IL-4 receptor knockout macrophages and thioglycollate elicited macrophages. Peritoneal macrophages from BALB/c wild type or IL-4 receptor knockout mice were elicited with thioglycollate or using nemtodes (peritoneal implant of Brugia malayi). The latter leads to a population of alternatively activated macrophages. Microarray analysis was used to examine the microRNA profile of WT alternatively activated macrophages (n = 4), IL-4 receptor knockout alternatively activated macrophages (n = 4), WT thioglycollate elicited macrophages (n = 3) and IL-4 receptor knockout thioglycollate elicited macrophages (n = 3).

2012-08-07 | E-GEOD-35047 | biostudies-arrayexpress

MicroRNA expression in thioglycollate and alternatively activated

2012-08-08 | GSE35047 | GEO

Bulk RNA-sequencing in Ldlr-/- peritoneal macrophages treated with LPS

Project description:Here we study the effect of LPS in the transcriptome of thioglycollate-elicited peritoneal macrophages isolated from Ldlr knock out mice

2021-05-21 | GSE168777 | GEO

Genome-wide analysis of mouse macrophages stimulated with IL-4 (bone marrow macrophages) (Affymetrix)

Project description:Analysis of alternative activation of macrophages at gene expression level. The study forms part of a wider study where we compare the effects of IL-4 in different human and mouse macrophages. Our results support the notion that in vitro culture conditions greatly affect the macrophage response to IL-4. Total RNA obtained from bone marrow derived macrophages upon exposure to 20 ng/ml of IL-4 for 18 hours. Bone marrow derived macrophages were stimulated with the Th2 cytokine IL-4, for RNA extraction and hybridization on Affymetrix microarrays.

2012-09-29 | E-GEOD-35435 | biostudies-arrayexpress

Bulk RNA-sequencing in Ldlr-/- or Ch25h-/-;Ldlr-/- peritoneal macrophages treated with LPS

Project description:Here we study the effect of LPS in the transcriptome of thioglycollate-elicited peritoneal macrophages isolated from Ldlr knock out and Ch25h;Ldlr double knock out mice

2022-07-01 | GSE189079 | GEO

Genome-wide analysis of mouse macrophages stimulated with IL-4 (bone marrow macrophages) (Affymetrix)

Project description:Analysis of alternative activation of macrophages at gene expression level. The study forms part of a wider study where we compare the effects of IL-4 in different human and mouse macrophages. Our results support the notion that in vitro culture conditions greatly affect the macrophage response to IL-4. Total RNA obtained from bone marrow derived macrophages upon exposure to 20 ng/ml of IL-4 for 18 hours.

2012-09-29 | GSE35435 | GEO

Tec kinase deficiency in macrophages

Project description:Previous work has shown conflicting roles for Tec family kinases in regulation of Toll-like receptor (TLR)-dependent signalling in myeloid cells. In the present study, we performed a detailed investigation of the role of Btk and Tec kinases in regulating TLR signalling in several types of primary murine macrophages. We demonstrate that primary resident peritoneal macrophages deficient for Btk and Tec secrete less pro-inflammatory cytokines in response to TLR stimulation than wild type cells. In contrast, we found that bone marrow-derived and thioglycollate-elicited peritoneal macrophages deficient for Btk and Tec secrete more pro-inflammatory cytokines than wild type cells. We then compared the phosphoproteome regulated by Tec kinases and lipopolysaccharide in primary peritoneal and bone marrow derived macrophages. From this analysis we determined that Tec kinases regulate different signalling programs in these cell types. In additional studies using bone marrow-derived macrophages, we find that Tec and Btk promote phosphorylation events necessary for immunoreceptor-mediated inhibition of TLR signalling. Taken together, our results are consistent with a model where Tec kinases (Btk, Tec, Bmx) are required for TLR-dependent signalling in many types of myeloid cells. However, our data also support a cell type-specific TLR-inhibitory role for Btk and Tec that is mediated by immunoreceptor activation and signalling via PI3K.

2018-10-24 | PXD002031 | Pride

miRNA arrays for LPS-activated Akt1+/+ and Akt1-/- macrophages

Project description:MicroRNAs regulated by lipopolysaccharide (LPS) target genes that contribute to the inflammatory phenotype. Here we showed that the protein kinase Akt1, which is activated by LPS, positively regulated miRNAs let-7e, miR-181c but negatively regulated miR-155 and miR-125b. In silico analyses and transfection studies revealed that let-7e repressed Toll-like receptor 4 (TLR4) whereas miR-155 repressed SOCS1, two proteins critical for LPS-driven TLR signalling, which regulate endotoxin sensitivity and tolerance. As a result, Akt1-/- macrophages exhibited increased responsiveness to LPS in culture and Akt1-/- mice did not develop endotoxin tolerance in vivo. Overexpression of let-7e and suppression of miR-155 in Akt1-/- macrophages restored sensitivity and tolerance to LPS in culture and in animals. These results indicate that Akt1 regulates the response of macrophages to LPS by controlling miRNA expression. The data deposited here contain the entire analysis of miRNA profile of Akt1+/+ and Akt1-/- thioglycollate elicited peritoneal macrophages following stimulation with LPS for 3 hours in culture. Thioglycollate elicited macrophages were cultured in complete DMEM medium, stimulated with LPS for 3 hours and RNA was extracted. Samples were analyzed using Taq-man PCR miRNA arrays (Dana Farber microarray Facility).

2009-08-21 | E-GEOD-17421 | biostudies-arrayexpress

Genome-wide analysis of human macrophages stimulated with IL-4 (10ng/ml) (Illumina)

Project description:Analysis of alternative activation of macrophages at gene expression level. The study forms part of a wider study where we compare the effects of IL-4 in different human and mouse macrophages. Our results support the notion that in vitro culture conditions greatly affect the macrophage response to IL-4. Total RNA obtained from human monocyte derived macrophages upon exposure to 10 ng/ml of IL-4 for 48 hours. Monocytes were induced to mature into macrophages using X Vivo 10 medium supplemented with 1% autologous serum.

2012-09-29 | E-GEOD-35434 | biostudies-arrayexpress

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