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19 projects found
Gene expression analysis of macrophages from ankylos...
OBJECTIVE: To determine whether macrophages, a type of cell implicated in the pathogenesis of ankylosing spondylitis (AS), exhibit a characteristic gene expression pattern. METHODS: Macrophages were derived from the peripheral blood of 8 AS patients (median disease duration 13 years [range <1-43 years]) and 9 healthy control subjects over 7 days with the use of granulocyte-macrophage colony-stimulating factor. Cells were stimulated for 24 hours with interferon-gamma (IFNgamma; 100 units/ml), ...
Keywords: Disease state analysis with treatment effect macrophages expression profiling by array
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Transcriptional Response of Human Microglial Cells t...
Microglial cells are resident macrophages in the central nervous system (CNS) and play a pivotal role in the innate and adaptive immune responses against microbial infections. The immune functions of microglia are regulated by a milieu of cytokines including interferon (IFN)-gamma. We here performed a series of experiments to acertain the transcriptional profile of human fetal microglial cells at 1, 6, and 24 h after IFN-gamma treatment. Primary human microglial cells were either untreated o...
Keywords: time-course microglia interferon-gamma macrophages expression profiling by array
10
The type of phagocytic receptor modulates gene expre...
The receptors engaged during phagocytic particle uptake determine the signaling events that occur during phagosome formation and maturation. However, pathogens generally have multiple ligands, making it difficult to dissect the roles of individual receptors in these processes. Here, we used latex beads coupled to single ligands, focusing on IgG, mannan, LPS and avidin, and monitored phagocytic uptake rates, phago-lysosomal fusion events, macrophage gene expression and the proteomic compositio...
Keywords: NCBI GEO macrophages expression profiling by array
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Expression data from human macrophages
Human CD14 positive monocytes were purified from healthy volunteers’ blood and cultured in vitro for 4, 12, 24, 72 hours. While culturing, macrophages were activated alternatively with interleukin-4 (IL-4 100 ng/ml) or classically with interferon-gamma (IFNg 100 ng/ml)+tumor necrosis factor (TNF 50 ng/ml) or left without activation. Simultaneously, macrophages were also treated with vehicle (DMSO:ethanol) or 1mM synthetic PPARg agonist, Rosiglitazone. We used Affymetrix microarrays (U133Plus ...
Keywords: NCBI GEO macrophages expression profiling by array
12
Expression analysis of dendritic cells, macrophages ...
Expression profiles at different time points during dendritic cell differentiation (induced by specific culture conditions) including monocytes as well as expression profiles between monocytes and completely differentiated cells (macrophages at day7 and dendritic cells at day7, respectively) were compared. Monocyte-derived dendritic cells (DC) were obtained by culturing elutriated monocytes with 20U/ml IL-4, 280U/ml GM-CSF and 10% FCS; monocyte-derived macrophages (MAC) were obtained by cult...
Keywords: NCBI GEO macrophages expression profiling by array
13
Macrophages heterogeneity in human atherosclerotic plaques
This study aims to characterize the transcriptional profile of Granulocyte-macrophage colony-stimulating factor induced macrophages (GM-MØ) and M-CSF macrophages (M-MØ) and to investigate in situ a subset of genes and their products specific to each phenotype in human atherosclerosis plaques
Keywords: NCBI GEO macrophages expression profiling by array
14
Gene Expression Profiles of RAW264.7 Macrophages Sti...
Background: Toll-like family of receptors recognizes pathogen-associated molecular patterns (PAMPs) from different organisms. TLR4 is the receptor for bacterial lipopolysaccharide (LPS), dsRNA viral mimic poly(I:C) binds to TLR3, and bacterial CpG DNA signals through TLR9. TLR4 signaling is mediated by adaptor molecules Myd88 and TRIF while TLR3 pathway involves only the TRIF adaptor and TLR9 signals solely through Myd88. Methods: To identify genes other than those in TLR pathways th...
Keywords: time course macrophages expression profiling by array
15
Monocytes of patients with familial hypercholesterol...
Background: Elevated plasma cholesterol promotes the formation of atherosclerotic lesions in which monocyte-derived lipid-laden macrophages are frequently found. To analyze, if circulating monocytes already show increased lipid content and differences in lipoprotein metabolism, we compared monocytes from patients with Familial Hypercholesterolemia (FH) with those from healthy individuals.Methods: Cholesterol and oxidized cholesterol metabolite serum levels of FH and of healthy, gender/age mat...
Keywords: Micro-array analysis cell type comparison, macrophages expression profiling by array
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