Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA121593 | ENA |
REPOSITORIES: ENA
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Project description:Macrophages are central mediators of the innate immune system that can be differentiated from monocytes upon exposure to cytokines. While increased cyclic adenosine monophosphate (cAMP) levels inhibit many lipopolysaccharide (LPS) -elicited macrophage inflammatory responses, the effects of elevated cAMP on macrophage differentiation are not well understood. We have differentiated monocytes to macrophages in the presence of GM-CSF or GM-CSF + FSK to elevate cAMP levels and determine its effects on differentiation. Microarray analysis was performed separately on samples from 3 human donors: 3 control and 3 forskolin-treated samples.
2010-06-20 | E-GEOD-18654 | biostudies-arrayexpress
Project description:Macrophages are central mediators of the innate immune system that can be differentiated from monocytes upon exposure to cytokines. While increased cyclic adenosine monophosphate (cAMP) levels inhibit many lipopolysaccharide (LPS) -elicited macrophage inflammatory responses, the effects of elevated cAMP on macrophage differentiation are not well understood. We have differentiated monocytes to macrophages in the presence of GM-CSF or GM-CSF + FSK to elevate cAMP levels and determine its effects on differentiation.
2009-10-22 | GSE18654 | GEO
Project description:Caspases, which are key effectors of apoptosis, have demonstrated non-apoptotic functions. One of these functions is the differentiation into macrophages of peripheral blood monocytes exposed to Colony-Stimulating Factor-1 (CSF1). Conversely, GM-CSF induces the differentiation of monocytes into macrophages in a caspase-independent manner. Macrophages generated by CSF1 and GM-CSF have distinct polarity. Macrophage polarization plays an important role in the pathogenesis of diverse human diseases as cancer, leading us to explore if caspase inhibition would affect macrophage polarization. To explore the role of caspases in CSF1 differentiation, we used human monocytes sorted from buffy coats treated by cytokines. We reported that caspase inhibition delays the ex vivo differentiation of peripheral blood monocytes exposed to CSF1 and modifies the phenotype of generated macrophages, e.g. cell shape, surface markers. Moreover, by RNAseq, we observed that the macrophages generated in presence of CSF1 and QVD are different from CSF1-treated monocytes and from GM-CSF-treated monocytes. Cell cycle and focal adhesion-related pathway genes were selectively down-regulated. This study confirms the importance of caspase activation in CSF1 differentiation.
2024-01-01 | E-MTAB-5752 | biostudies-arrayexpress
Project description:Comparison of the transcriptome of CD14+ human monocytes and CD14+ human monocyte-derived macrophages generated in the presence of M-CSF (M-MØ) or GM-CSF (GM-MØ).
2022-03-24 | GSE188278 | GEO
Project description:Monocytes can differentiate into macrophages or dendritic cells. When treated with granulocyte-macrophage colony-stimulating factor (GM-CSF) monocytes differentiate into macrophage-like cells. Here, we report that pharmacological blockade of the nuclear receptor PPARγ in monocytes turns GM-CSF into a potent inducer of dendritic cell (Mo-DC) differentiation. Remarkably, simultaneous blockade of PPARγ and mTORC1 in the presence of GM-CSF promoted the differentiation of Mo-DCs with a stronger phenotypic stability and immunogenic profile when compared with canonical Mo-DCs differentiated by treatment with GM-CSF and IL-4. Moreover, and in contrast with the observations made with GM-CSF and IL-4, blockade of PPARγ and mTORC1 was shown to be able to induce the differentiation of monocyte-derived macrophages (Mo-Macs) into Mo-DCs. Transcriptional profiling performed at either early time points, as well as at the end of the differentiation process, revealed marked differences in the gene expression signature between Mo-DCs induced by GM-CSF and IL-4 and Mo-DCs induced by GM-CSF in the presence of PPARγ and/or mTORC1 inhibitors, thus suggesting diverging differentiation pathways. Our observations might contribute, not only to a better understanding of the mechanisms involved in Mo-DCs differentiation but also to improving the efficacy of both, DC vaccines and therapies focusing on the modulation of myeloid cell functions.
2023-02-23 | GSE210935 | GEO
Project description:Macrophages are differentiated from human circulating monocytes using M-CSF and GM-CSF. Oligodendrocytes are differentiated from human oligodendrocyte precursopr cells (#1610, ScienCell) using oligodendrocyte precursor cell differentiation medium.
2018-03-08 | GSE104742 | GEO
Project description:Earlier work has shown that macrophages derived from differentiation of monocytes by heat killed (HK) mycobacteria (e.g. M. obuense) exhibit unique immunophenotypic and molecular properties. Yet, our knowledge of these properties is still limited. The goal of the study is to understand global gene expression programs that are differentially modulated in macrophages derived from monocytes that were differentiated through three different routes: in presence of M-CSF, GM-CSF and the heat killed mycobacterium M. obuense. We performed RNA sequencing (RNA-Seq) of monocyte-derived macrophages (MDM) that were acquired from four separate healthy donors and differentiated by incubation with M-CSF (M-MDM), GM-CSF (GM-MDM) and HK M. obuense (Mob-MDM) (n = 12 samples). We report that Mob-MDM exhibit unique gene expression programs that may explain its unique immunophenotypic properties and thus immunomodulatory capacity.
2017-10-31 | GSE102492 | GEO
Project description:A growing body of evidence suggests that inflammatory cytokines have a dualistic role in immunity. In this study, we sought to determine the direct effects IFN-gamma on the differentiation and maturation of human peripheral blood monocyte-derived dendritic cells (moDC). Here, we report that following differentiation of human peripheral-blood monocytes into moDCs with granulocyte-macrophage colony-stimulating factor (GM-CSF) and IL-4, interferon-gamma (IFN-gamma) induces moDC maturation and up-regulates the co-stimulatory markers CD80, CD86, CD95, and MHC Class I, enabling moDCs to effectively generate antigen-specific CD4+ and CD8+ T cell responses for multiple viral and tumor antigens. Interestingly, early exposure of monocytes to high concentrations of IFN-gamma promotes monocyte differentiation into macrophages, despite the presence of GM-CSF and IL-4. However, under low concentrations of IFN-gamma, monocytes continue to differentiate into dendritic cells possessing a unique gene-expression profile, resulting in impairments in subsequent maturation by IFN-gamma and an inability to generate effective antigen-specific CD4+ and CD8+ T cell responses compared to standard moDCs. Monocytes differentiated in the presence of low levels of IFN-gamma downregulate IFN-gamma receptor expression, impairing their response to an inflammatory rechallenge. These findings demonstrate the ability of IFN-gamma to impart differential programs on human moDCs which shape the antigen-specific T cell responses they induce. Timing and intensity of exposure to IFN-gamma can thus determine whether moDCs are tolerogenic or immunostimulating. Human monocyte-derived dendritic cells from 4 healthy donors were differentiated with either GM-CSF and IL-4 (n=4) or GM-CSF, IL-4, and IFN-gamma (n=4). These samples were subsequently hybridized to arrays as 4 biological repeats for each of the two treatment conditions.
2014-06-01 | E-GEOD-47621 | biostudies-arrayexpress
Project description:Comparison of the transcriptome macrophages derived from CD14+ human monocyte-derived macrophages generated in the presence of M-CSF (M-Mphage) or GM-CSF (GM-Mphage) and MTX.
2023-06-14 | GSE228475 | GEO
Project description:Comparison of the DNA methylation profiles of CD14+ monocytes from human peripheral blood with derived dendritic cells (DCs) and macrophages (MACs) obtained by exposure with GM-CSF/IL-4 and GM-CSF, respectively. Effects on the methylation profiles of DCs and MACs of JAK3 inhibitor PF-956980 The methylation profiles of bisulfite-modified DNA of human CD14+ monocytes were compared with derived dendritic cells (DCs), macrophages (MACs) following GM-CSF/IL-4 and GM-CSF incubation, and DC and MAC samples incubated with JAK3 inhibitor PF-956980 using the Infinium HumanMethylation450 BeadChips (Illumina, Inc., San Diego, CA,). This platform allows the interrogation of >485,000 methylation sites per sample at single-nucleotide resolution, and comprises an average of 17 CpG sites per gene in the 99% of RefSeq genes. 96% of CpG islands are covered, with additional coverage in CpG island shores and the regions flanking them. The samples were hybridized in the array following the manufacturerâÂÂs instructions. Total DNA isolated by standard procedures from CD14+ cells (total monocytes, MOs) corresponding to three sets of samples of monocytes (MOs), derived DCs and MACs (DCs and iMACs; DMSO as these samples were differentiated in the absence of JAK3 inhibitors) and DCs and MACs differentiated in the presence of JAK3 inhibitor PF-956980.
2015-12-12 | E-GEOD-75937 | biostudies-arrayexpress