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CCR2+ vs. CCR2- murine hematopoietic stem cells

ABSTRACT: Comparative analysis of FACS-sorted CCR2- and CCR2+ HSC in the steady state. CCR2+ HSC have fourfold higher proliferative rates than CCR2- HSC, are are biased towards the myeloid lineage and dominate the migratory HSC population. Comparison of pooled CCR2- and CCR2+ HSC (bone marrow from 20 mice pooled for each sample), three biological replicates each.

ORGANISM(S): Mus musculus

SUBMITTER: Kamila Naxerova

PROVIDER: E-GEOD-53827 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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CCR2+ vs. CCR2- murine hematopoietic stem cells

Project description:Comparative analysis of FACS-sorted CCR2- and CCR2+ HSC in the steady state. CCR2+ HSC have fourfold higher proliferative rates than CCR2- HSC, are are biased towards the myeloid lineage and dominate the migratory HSC population.

2015-05-01 | GSE53827 | GEO

Gene expression profiling of wild type and CCR2-/- mice post chikungunya infection

Project description:A number of inhibitors of chemokine CCL2 and its receptor CCR2 are in development and may find application for treating a range of inflammatory conditions, including autoimmune and viral arthritides. Herein we sought to determine the effect of CCR2 deficiency on arthritis caused by an arthritogenic alphavirus, Chikungunya virus. Chikungunya virus (LR2006-OPY1) was injected subcutaneously into the hind foot of either CCR2 knockout or wild-type control mice (n=4-6). At day 0 and d7 post infection, RNA from the feet was harvested, the RNA was pooled (4-6 feet per time point per mouse strain) and gene expression analysis was performed using Mouse Gene ST arrays (Affymetrix).

2014-04-23 | E-GEOD-56965 | biostudies-arrayexpress

Transcriptome comparison between CCR2+ and CCR2- classical monocytes in SIV-infected Macaca nemestrina

Project description:Monocytes have been categorized in three main subpopulations based on CD14 and CD16 surface expression. Classical monocytes are the most abundant subset in the blood. They express a CD14+CD16-CCR2+ phenotype, which confers on them the ability to migrate to inflammatory sites by quickly responding to CCL2 signaling. Here we identified and characterized the surge and expansion of a novel monocyte subset during SIV and HIV infection. They were undistinguishable from classical monocytes regarding CD14 and CD16 expression, but did not express surface CCR2. Transcriptome analysis of sorted cells confirmed that they represent a distinct subpopulation that expresses lower levels of inflammatory cytokines and activation markers than their CCR2+ counterparts. They exhibited impaired phagocytosis and deficient chemotaxis in response to CCL2 and CCL7, besides being refractory to SIV infection. We named these cells atypical CCR2- classical (ACC) monocytes, and believe they play an important role in AIDS pathogenesis, possibly reflecting an anti-inflammatory response against the extreme immune activation observed during SIV and HIV infection. Antiretroviral therapy caused this population to decline in both macaque and human subjects, suggesting that this atypical phenotype may be induced by viral replication. Expression profiling by NanoString nCounter gene expression system. Classical monocytes (CD14++CD16-) from six SIV-infected macaques (day 14 post inoculation) were sorted in two groups according to CCR2 expression.

2012-03-01 | E-GEOD-27559 | biostudies-arrayexpress

Phosphoproteomic Characterization of Signaling Networks Resulting from Activation of Chemokine Receptor CCR2

Project description:Leukocyte recruitment, a universal feature of tissue inflammation, is regulated by the interactions of chemokines with their G protein-coupled receptors. Activation of CC chemokine receptor 2 (CCR2) by its cognate chemokine ligands, including CCL2, plays a central role in recruitment of monocytes in several inflammatory diseases. In this study, we used phosphoproteomics to enable unbiased characterization of the signaling network resulting from CCL2 activation of CCR2. Using data-independent acquisition (DIA) mass spectrometry, both the proteome and phosphoproteome were quantified for FlpIn-HEK293T cells stably expressing CCR2, at six time points after activation with CCL2, in comparison with untreated cells. Differential expression analysis identified 699 significantly regulated phosphorylation sites located on 441 proteins. As expected, many of these proteins participate in canonical signal transduction pathways and the regulation of actin cytoskeleton dynamics, including numerous guanine nucleotide exchange factors (GEFs) and GTPase activating proteins (GAPs). In addition, we identified regulated phosphorylation sites in numerous proteins that exert functions in the nucleus, including several constituents of the nuclear pore complex. This study provides an unprecedented level of detail about CCR2 signalling and identifies potential novel targets for regulation of CCR2 function.

2020-04-08 | PXD015845 | Pride

Transcriptomic profile of dermal and hypodermal CCR2+ macrophages, CCR2- macrophages and dendritic cells from C57BL/6 mice

Project description:In order to explore and compare the transcriptomic profile of CCR2+ macrophages, CCR2- macrophages and dendritic cells present in the dermis and hypodermis of C57BL/6 mice, isolated cells were subjected to RNA-sequencing analysis.

2023-09-06 | GSE227758 | GEO

Expression data from CCR2+ and CCR2- splenic marophages from C57BL6 mouse infected with Listeria Monocytogenes in vivo on day3

Project description:We used microarrays to detail the global gene expression in CCR2+ and CCR2- spenic macrophages (SM) sorted from C57BL6 mouse infected with Listeria Monocytogenes in vivo on day3

2019-01-01 | GSE97790 | GEO

Transcriptome comparison between CCR2+ and CCR2- classical monocytes in SIV-infected Macaca nemestrina

2012-03-01 | GSE27559 | GEO

RNAseq of mitral valves from Fbn1 C1039G/+ mice with or without CCR2 deficiency

Project description:Mitral valves were isolated from 2-month-old mice with the following 4 genotypes: 1) CCR2 RFP/+ (Chet), 2) CCR2 RFP/RFP (Cko), 3) Fbn1 C1039G/+; CCR2 RFP/+ (FhetChet), 4) Fbn1 C1039G/+; CCR2 RFP/RFP (FhetCko). N=4 for each genotype. Total RNA was extracted from mitral valves individually for gene expression profiling.

2023-01-01 | GSE202780 | GEO

WT and Ccr2-/- small intestinal macrophages

Project description:WT and Ccr2-/- small intestinal macrophages

| PRJNA979195 | ENA

IL10RA signaling deficiency change the anti-inflammatory signature of Ccr2-independent resident macrophages

Project description:In adult mice the majority of intestinal macrophages exhibit a mature phenotype and are derived from blood monocytes. In the steady state replenishment of these cells is reduced in the absence of the chemokine receptor Ccr2. Within the intestine of mice with colitis there is marked increase in the accumulation of immature macrophages that demonstrate an inflammatory phenotype. However, whether Ccr2 is necessary for the accumulation of these immature macrophages and further for the development of colitis in susceptible mouse models is incompletely defined. Here, we ask whether Ccr2 is necessary for the development of colitis in mice lacking the receptor for IL10. We compared the development of intestinal inflammation in mice lacking IL10RA or both IL10RA and Ccr2. The absence of Ccr2 interfered with the accumulation of immature macrophages in IL10R-deficien mice, including a novel population of rounded submucosal Iba1+ cells and reduced the severity of colitis in these mice. In contrast, the absence of Ccr2 did not reduce augmented inflammatory gene expression observed in mature intestinal macrophages isolated from mice lacking IL10RA. These data suggest that both newly recruited Ccr2-dependent immature macrophages and Ccr2-independent residual mature macrophages contribute to the development of intestinal inflammation observed in IL10R-deficient mice.

2022-01-19 | GSE183960 | GEO

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