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Transcription profiling of mouse alternatively activated macrophages

ABSTRACT: Similar to asthma, nematode infections are commonly associated with production of Th2 cytokines and hyporesponsive T cells. This T cell phenotype has been reported to be induced by IL-4 dependent macrophages termed alternatively activated macrophages (AAM). Additionally, AAM have been implicated in several pulmonary diseases, including allergic asthma. This study examines the potential importance of AAM as immune regulatory cells in both infectious and noninfectious disease contexts. http://www.hopkins-genomics.org/asthma/asthma006/index.html

ORGANISM(S): Mus musculus

SUBMITTER: Eric Hoffman

PROVIDER: E-GEOD-477 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Alternatively activated macrophages

Project description:Similar to asthma, nematode infections are commonly associated with production of Th2 cytokines and hyporesponsive T cells. This T cell phenotype has been reported to be induced by IL-4 dependent macrophages termed alternatively activated macrophages (AAM). Additionally, AAM have been implicated in several pulmonary diseases, including allergic asthma. This study examines the potential importance of AAM as immune regulatory cells in both infectious and noninfectious disease contexts. http://www.hopkins-genomics.org/asthma/asthma006/index.html Keywords: other

2003-07-16 | GSE477 | GEO

PGA Human CD4+ Lymphocytes

Project description:This project is based on the hygiene hypothesis that exposure to TB provides a protective mechanism against asthma through specific cytokines and the balance of Th1, Th2 cells. Additionally, expression changes are examined in patients with and without atopy in combination with asthma and PPD status. Expression levels were evaluated in CD4+ cells isolated from peripheral blood of 30 patients. Each patient was evaluated on the entire U133 Affymetrix GeneChip set. Hypothesis: That CD4+ cells have specific diagnostic profiles based upon atopy and asthma state. Further information at http://www.hopkins-genomics.org/asthma/asthma001/index.html Specific Aim: To define diagnostic genes from purified CD4+ blood cells have specific diagnostic profiles based upon atopy and asthma state. Further information at http://www.hopkins-genomics.org/asthma/asthma001/index.html Keywords: other

2003-07-16 | GSE473 | GEO

Transcription profiling of human CD4+ lymphcytes from patients with and without atopy in combination with asthma

Project description:This project is based on the hygiene hypothesis that exposure to TB provides a protective mechanism against asthma through specific cytokines and the balance of Th1, Th2 cells. Additionally, expression changes are examined in patients with and without atopy in combination with asthma and PPD status. Expression levels were evaluated in CD4+ cells isolated from peripheral blood of 30 patients. Each patient was evaluated on the entire U133 Affymetrix GeneChip set.,Hypothesis: That CD4+ cells have specific diagnostic profiles based upon atopy and asthma state. Further information at http://www.hopkins-genomics.org/asthma/asthma001/index.html,Specific Aim: To define diagnostic genes from purified CD4+ blood cells have specific diagnostic profiles based upon atopy and asthma state. Further information at http://www.hopkins-genomics.org/asthma/asthma001/index.html

2007-09-28 | E-GEOD-473 | biostudies-arrayexpress

Alternatively activated macrophages derived from monocytes and tissue macrophages are phenotypically and functionally distinct

Project description:Macrophages adopt an alternatively activated phenotype (AAM) when activated by IL-4. While these AAMs can be derived from local proliferation of resident tissue macrophages or recruited inflammatory monocytes, it is not known whether these different AAMs are phenotypically and functionally distinct. Using microarray analysis of gene expression, we demonstrated that while both monocyte- and tissue-derived AAM expressed high levels of Arg1, Chi3l3 and Retnla, only monocyte-derived AAM upregulated Raldh2 and PD-L2. The distinction between monocyte- and tissue-derived macrophages can, therefore, be made using different phenotypic markers.

2014-02-05 | GSE54679 | GEO

Alternatively activated macrophages derived from monocytes and tissue macrophages are phenotypically and functionally distinct

2014-02-05 | E-GEOD-54679 | biostudies-arrayexpress

Murine Airway Hyperresponsiveness

Project description:This project investigates the mechanisms that underlie asthma-related phenotypes associated with allergen exposure. See http://www.hopkins-genomics.org/asthma/asthma006/index.html The goal of the experiment was to identify genes that change their levels of expression as a consequence of challenge with allergen. The experiments utilized a murine model of human asthma that employed BALB/CJ mice. In this particular sensitization-challenge protocol, the response produced by BALB/CJ mice is representative of a majority of the mouse strains tested. The antigen complex used to sensitize and challenge the mice was ragweed pollen an allergen that is highly relevant to human disease. Keywords: time series, allergen

2005-08-24 | GSE3184 | GEO

Expression Data from BALB/c and Stat6-deficient bone marrow derived macrophages (BMDM)

2010-07-19 | GSE20030 | GEO

Transcription profiling of mouse model of human asthma exposed to ragweed pollen

Project description:This project investigates the mechanisms that underlie asthma-related phenotypes associated with allergen exposure. See http://www.hopkins-genomics.org/asthma/asthma006/index.html; The goal of the experiment was to identify genes that change their levels of expression as a consequence of challenge with allergen. The experiments utilized a murine model of human asthma that employed BALB/CJ mice. In this particular sensitization-challenge protocol, the response produced by BALB/CJ mice is representative of a majority of the mouse strains tested. The antigen complex used to sensitize and challenge the mice was ragweed pollen an allergen that is highly relevant to human disease. Experiment Overall Design: 40 samples: 2 time points, 2 strains, allergen and PBS control

2008-06-12 | E-GEOD-3184 | biostudies-arrayexpress

Expression Data from BALB/c and Stat6-deficient bone marrow derived macrophages (BMDM)

Project description:We used microarrays to find Stat6 dependent genes in control and IL-4 exposed bone marrow derived macrophages. Alternatively activated macrophages (AAM) accumulate in tissues during Th2-associated immune responses like helminth infections and allergic disorders. These cells possess potent inhibitory activity against T cells. The differentiation of AAM depends on IL-4/IL-13-mediated activation of the transcription factor Stat6. Stat6 is also required in AAM to induce several genes, such as YM1, FIZZ1 and Arginase1. Macrophages were differentiated from bone marrow cells in supplemented RPMI 1640 for 7 days in the presence of 10% supernatant from the M-CSF producing fibroblast cell line L929. After removal of nonadherent cells, macrophages were detached using 5mM EDTA treatment, washed, counted, and replated at a density of 10x6 cells/mL. Macrophages were cultured for 24 hours in medium (control) or in the presence of IL-4 (10mg/mL). F4/80 positive macrophages were sorted with a purity of 99% and RNA was isolated (Trizol/Chloroform) according to the manufacturer's instructions. RNA was labeled (biotin), fragmented, and hybridized to the arrays according to the manufacturer's recommendations.

2010-07-19 | E-GEOD-20030 | biostudies-arrayexpress

IL-33-induced metabolic reprogramming controls the differentiation of alternatively activated macrophages and the resolution of inflammation (scRNA-seq)

Project description:Alternatively activated macrophages (AAMs) contribute to the resolution of inflammation and tissue repair. However, molecular pathways that govern their differentiation upon tissue damage have remained incompletely understood. Here, we show that the transcription factor GATA3 specifically controls the IL-4-independent differentiation of pro-resolving and reparative AAMs in response to injury and the necrotic cell-derived alarmin IL-33. In macrophages, IL-33 sequentially triggered an early expression of pro-inflammatory genes as well as a subsequent differentiation into AAMs. Global analysis of involved signaling events identified an IL-33-induced GATA-3 transcriptional module that specifically orchestrated AAM differentiation. IL-4-induced AAM differentiation, in contrast, was independent of GATA-3. Conditional deletion of GATA-3 in mononuclear phagocytes accordingly abrogated IL-33-induced differentiation of AAMs in vitro and diminished macrophage-mediated tissue repair in vivo. Our data thus identify an IL-33-GATA3 signaling axis that controls plasticity of macrophages in response to injury and fosters resolution of inflammation.

2021-10-06 | GSE151654 | GEO

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