Genome wide transcriptional analysis of tissue macrophages and bone marrow derived macrophages (BMDMs)
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE56682 | GEO | 2014/05/02
SECONDARY ACCESSION(S): PRJNA244315
REPOSITORIES: GEO
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Project description:Tissue macrophages from peritoneal cavity, lung, liver, spleen, small intestine and adipose tissue and M-CSF derived bone marrow derived macrophages (BMDMs) were determined for gene expression. Macrophages from six different tissues and BMDMs were compared for gene expression.
2014-05-02 | E-GEOD-56682 | biostudies-arrayexpress
Project description:To recruit phagocytes, apoptotic cells characteristically release ATP, which functions as a “danger” signal. Here, we found that the culture supernatant of apoptotic cells activated the macrophages to express anti-inflammatory genes such as NR4A and Thbs1. A high level of AMP accumulated in the apoptotic cell supernatant in a Pannexin1-dependent manner. A nucleotidase inhibitor and A2a adenosine receptor antagonist inhibited the apoptotic supernatant-induced gene expression, suggesting AMP was metabolized to adenosine by an ecto-5’-nucleotidase expressed on macrophages, to activate the macrophage A2a adenosine receptor. Intraperitoneal injection of zymosan into AdoR A2a- or Panx1-deficient mice produced high, sustained levels of inflammatory mediators in the peritoneal lavage. These results indicated that AMP from apoptotic cells suppresses inflammation as a “calm down” signal. If apoptotic cells produce “danger” or “anti-danger” signal(s), we rationalized that such signals would activate gene expression in macrophages. To investigate this possibility, we examined the effect of the culture supernatant from apoptotic cells on macrophage gene expression by using microarrays. For mouse BMDMs, bone marrow cells from female C57BL/6J mice at 8 weeks of age were cultured for more than 7 days with DMEM containing 10% FCS supplemented with mouse M-CSF. We used adherent cells as BMDMs in the study. W3 cells, mouse T cell line expressing Fas, were treated with human Fas ligand at 37°C for 30 min to induce apoptosis. The cells were then washed and re-suspended at a concentration of 1 × 107 cells/ml with RPMI containing 1% FCS, and further incubated for 60 min at 37°C. Following Fas ligand treatment, more than 90% of the W3 cells were Annexin V positive, and only small percentage were positive for both Annexin V and propidium iodide (PI). The culture supernatant was collected from apoptotic W3 cells. Next, BMDMs were incubated with medium (BMDMs-Medium) or apoptotic W3 cell supernatant (BMDMs-Apoptotic cell supernatant) for 1 h. Total RNA was extracted from the cells and hybridized on Affymetrix microarrays.
2014-06-24 | E-GEOD-50883 | biostudies-arrayexpress
Project description:Identification of pro- and anti-inflammatory pathways induced in M-CSF differentiated bone-marrow derived macrophages (BMDMs) after 3 h stimulation with two different TLR2 agonists, Helicobacter hepaticus polysacharide and Pam3CSK4 (75 ng/ml), using TSB (Tryptone Soya Broth) medium as a control
2017-08-25 | E-MTAB-5780 | biostudies-arrayexpress
Project description:<p>Macrophages play a critical role in the inflammatory response and tumor development. Macrophages are primarily divided into pro-inflammatory M1-like and anti-inflammatory M2-like macrophages based on their activation status and functions. <em>In vitro</em> macrophage models could be derived from mouse bone marrow cells stimulated with two types of differentiation factors: GM-CSF (GM-BMDMs) and M-CSF (M-BMDMs), to represent M1-and M2-like macrophages, respectively. Since macrophage differentiation requires coordinated metabolic reprogramming and transcriptional rewiring in order to fulfill their distinct roles, we combined both transcriptome and metabolome analysis, coupled with experimental validation, to gain insight into the metabolic status of GM-and M-BMDMs. The data revealed higher levels of the tricarboxylic acid cycle (TCA cycle), oxidative phosphorylation (OXPHOS), fatty acid oxidation (FAO), and urea and ornithine production from arginine in GM-BMDMs, and a preference for glycolysis, fatty acid storage, bile acid metabolism, and citrulline and nitric oxide (NO) production from arginine in M-BMDMs. Correlation analysis with the proteomic data showed high consistency in the mRNA and protein levels of metabolic genes. Similar results were also obtained when compared to RNA-seq data of human monocyte derived macrophages from the GEO database. Furthermore, canonical macrophage functions such as inflammatory response and phagocytosis were tightly associated with the representative metabolic pathways. In the current study, we identified the core metabolites, metabolic genes, and functional terms of the two distinct mouse macrophage populations. We also distinguished the metabolic influences of the differentiation factors GM-CSF and M-CSF, and wish to provide valuable information for <em>in vitro</em> macrophage studies. </p>
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Project description:RNAseq of Bone Marrow-Derived Macrophages (BMDMs)
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Project description:This study aims to characterize the transcriptional profile of Granulocyte-macrophage colony-stimulating factor induced macrophages (GM-MÃ) and M-CSF macrophages (M-MÃ) and to investigate in situ a subset of genes and their products specific to each phenotype in human atherosclerosis plaques 18 RNG/MRC two-colour oligonucleotide microarrays (Le Brigand et al. 2006) were used to generate global mRNA expression profiles for GM-CSF-induced, M-CSF-induced, and peritoneal macrophages. The microarray experiments were conducted either as a common reference (peritoneal-like macrophages) design or using a direct design by hybridizing Granulocyte-macrophage colony-stimulating factor (GM-CSF)-induced human monocyte-derived macrophage (GM-MÃ) and CSF-induced human monocyte-derived macrophages(M-MÃ) on the same arrays
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Project description:Local factors produced in the tissue microenvironment play essential roles in promoting the ontogeny and phenotype of tissue resident macrophages (TRM). In the peritoneal cavity, large peritoneal macrophages (LPM) are the dominant TRMs that functionally mediate type 2 immunity, facilitate tissue repair of the mesothelium, and protect against peritoneal fibrosis. It is established that retinoic acid derived from the omentum induces transcription factor Gata6 expression in LPMs, which in turn regulates gene expression of factors that define peritoneal macrophages. It is still unclear whether retinoic acid is the sole local factor that regulates Gata6 expression in LPMs. Mesothelial cells line the entire peritoneal cavity and produce a protective, non-adhesive barrier against injury, at least in part by recruiting immune cells with secreted cytokines, such as M-CSF. We hypothesized that secreted factors from peritoneal mesothelial cells are also responsible for regulating LPM development including both ontogeny and function. Due to their immediate proximity to the peritoneal cavity, we propose that mesothelial cells can produce and secrete proteins into the peritoneum to maintain Gata6 expression by LPMs. To identify secreted factors that are highly and specifically expressed in mesothelial cells, we harvested primary mesothelial cells from 10-week-old C57BL/6 mice using FACS selection (CD45- PDPN+ GPM6a+). Total RNA was isolated from these cells and subjected to RNA-seq analysis after depletion of ribosomal RNA.
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Project description:In mouse peritoneal and other serous cavities, the transcription factor Gata6 drives the identity of the major cavity resident population of macrophages, with a smaller subset of cavity-resident macrophages dependent on the transcription factor Irf4. Here we showed that GATA6+ macrophages in the human peritoneum were rare, regardless of age. Instead, more human peritoneal macrophages aligned with mouse CD206+ LYVE1+ cavity macrophages that represent a differentiation stage just preceding expression of Gata6. Low abundance of CD206+ macrophages was retained in C57BL/6J mice fed a high-fat diet or in wild-captured mice, suggesting that differences between serous cavity-resident macrophages in humans and mice were not environmental. Irf4-dependent mouse serous cavity macrophages aligned closely with human CD1c+CD14+CD64+ peritoneal cells that, in turn, resembled human peritoneal CD1c+CD14-CD64- cDC2. Thus, major populations of serous cavity-resident mononuclear phagocytes in humans and mice shared common features but the proportions of different macrophage differentiation stages greatly differ between the two species and DC2-like cells were especially prominent in humans.
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Project description:RNASeq analysis of murine bone marrow derived macrophages (BMDMs)
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