ABSTRACT: Genome wide expression analysis of bone marrow derived macrophage cells (BMDMs) stimulated with IFNg and effect of Batf2 knockdown in BMDMs stimulated with IFNg
Project description:Gene expression from WT and NFAT5 KO primary macrophage cultures. Keywords: Bone-marrow derived macrophages. We analyzed 4 arrays from each condition: unstimulated WT BMDMs, LPS stimulated WT BMDMs, unstimulated KO BMDMs, LPS stimulated KO BMDMs.
Project description:We report the genome-wide RNA sequencing analysis in Il10-/- bone marrow-derived macrophages (BMDMs) stimulated by lipopolysaccharide (LPS) where IL-10 effect in macrophage inflammatory response was examined in IL-10-deficient BMDMs upon LPS stimulation with addition of exogenous IL-10.
Project description:mRNA from wild-type (Cre-) and MLL1-deficient (Cre+) BMDMs were analyzed via gene chip (Mouse Gene ST 2.1, Affymetrix) for relative expression changes. Isolated mRNA from Cre- and Cre+ BMDMs stimulated with classical activation signals (IFNg, LPS or IFNg+LPS) was analyzed using a gene chip panel of >40,000 RefSeq transcripts, and resulting fold expression was determined by analyzing quality-controlled expression values for validated probesets. Bone marrow derived macrophages from wild-type (Cre-) or MLL1-deficient (Cre+) mice were stimulated in vitro with IFNgamma (10 ng/ml), LPS (100 ng/ml) or the combination of IFNgamma+LPS for six hours. Cells were then processed in Trizol reagent for RNA extraction.
Project description:Alpk1-deficient mice demonstrate exacerbated colitis and increased IL-12/Th1 response upon challenge with an intestinal pathobiont, Helicobacter hepaticus (Hh). Hematopoietic compartment is driving the pathogenic phenotype in this animal model, and Alpk1 is highly expressed in myeloid cells (macrophages and dendritic cells). Alpk1 deficiency has a recessive phenotype, since Alpk1+/- (heterozygous) mice show the same phenotype as the wild type mice. Mouse bone-marrow derived macrophages (BMDMs) show elevated IL-12 production in Alpk1-/- mice in response to stimulation with Hh. Since the molecular mechanism of how Alpk1 deficiency affects macrophage response to Hh is unknown, we aimed to characterise global changes in gene expression in Alpk1+/- vs Alpk1-/- bone-marrow differentiated cells (BMDMs). Cells were isolated from bone marrow of Alpk1+/- and Alpk1-/- (mixture of bone marrows from three mice per genotype) and plated in BMDM differentiation medium (RPMI, 10% FCS, penicillin and streptomycin, 50 micro beta-mercapthoethanol, 20 ng/ml recombinant mouse GM-CSF(Peprotech)), 7 million cells in per 10 sm uncoated TC dish in 10 ml of medium for eight days, extra 10 ml of medium was added to plates at day 4, before collection and replating in 96-well plates, 150 thousand cells/200 microliters of differentiation medium per well in technical triplicates per genotype/stimulation condition (R1-R3 labels of the samples). The following day BMDMs were stimulated with MOI of 10 of Hh and 10ng/ml of mouse IFNg (Peprotech) (Alpk1+/- BMDMs – het _Hh_8h vs Alpk1-/- BMDMs – alpk1_Hh_8h) or IFNg only (het _nonstim_8h vs alpk1_nonstim_8h) before lysis for RNA extraction using Quick-RNA kit from Zymo Research. Purified RNA was submitted to the Welcome Trust Centre for Human Genetics (Oxford) for RNA-Sequencing
Project description:We previously identified TLR-independent expression of 4933430F08Rik, encoding Batf2, in T. cruzi-infected bone marrow-derived dendritic cells (BMDCs) (Kayama et al., 2009). To determine the functions of Batf2 in innate immune responses, we performed a comprehensive gene expression analysis in wild-type and Batf2-/- bone marrow-derived macrophages (BMMφ). RNA-seq analysis showed that 98 genes are upregulated in Batf2-/- BMMφ stimulated with LPS following IFN-γ treatment, when compared with that in wild-type cells. Among these genes, we focused on Il23a, encoding IL-23p19, because IL-23 is able to promote expression of Il17a in Th17 cells.
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>
Project description:Bmdm cells were differentiated for 10 days and harvested and culture in six well plate followed by transfection with Batf2 ShRNA. Media was replanished in every two days and on 10th day cells were stimulated with IFNg for 4 hrs. Total RNA was obtain after 4 hrs of stimulation. Total RNA was colloected from control ShRNA transfected Bmdm cells and Batf2 shRNA transfected Bmdm cells stimulated with/with out IFNg
Project description:Bone marrow derived macrophages from C57BL/6 mice were stimulated into M1 and M2 polarization state. Analysis of BMDMs from LysMcre;FoxO1Fl/FL mice and control littermates. Results provide insight into the regulatory role of FoxO1 during macrophage polarization. BMDMs were stimulated with 100ng/ml LPS plus 20ng/ml IFN-γ into M1 polarization, and stimulated with 10ng/ml IL-4 plus 10ng/ml IL-13 into M2 polarization. Both for 24 hours. Unstimulated cells as M0 state.
