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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Monocytic cell differentiation from band-stage neutrophils under inflammatory conditions

ABSTRACT: During inflammation, neutrophils are rapidly mobilized from the bone marrow storage pool into peripheral blood to subsequently enter lesional sites where most of them rapidly undergo apoptosis. Monocytes constitute a second wave of inflammatory immigrates giving rise to long-lived macrophages and dendritic cell subsets. According to descriptive immunophenotypic and cell culture studies, neutrophils may directly M-bM-^@M-^\transdifferentiateM-bM-^@M-^] into monocytes/macrophages. We here provide mechanistic data in human supporting the existence of this cellular pathway. Global transcriptional profiling of neutrophil-dervived monocytic cells revealed close resemblance of gene expression with monocytes and a clear separation of these cells from neutrophils. G-CSF mobilized neutrophils from peripheral blood were isolated and in vitro stimulated with GM-CSF, TNFa, and Il-1b for 5 days to generate monocytic cells. RNA were isolated from these cells and freshly isolated blood neutrophils and monocytes.

ORGANISM(S): Homo sapiens

SUBMITTER: Karin Wagner

PROVIDER: E-GEOD-58920 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Monocytic cell differentiation from band-stage neutrophils under inflammatory conditions

Project description:During inflammation, neutrophils are rapidly mobilized from the bone marrow storage pool into peripheral blood to subsequently enter lesional sites where most of them rapidly undergo apoptosis. Monocytes constitute a second wave of inflammatory immigrates giving rise to long-lived macrophages and dendritic cell subsets. According to descriptive immunophenotypic and cell culture studies, neutrophils may directly “transdifferentiate” into monocytes/macrophages. We here provide mechanistic data in human supporting the existence of this cellular pathway. Global transcriptional profiling of neutrophil-dervived monocytic cells revealed close resemblance of gene expression with monocytes and a clear separation of these cells from neutrophils.

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AMD3100 and G-CSF Mobilize Different CD34+ Cell Populations Based on Gene and miRNA Expression

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2009-12-04 | E-GEOD-16936 | biostudies-arrayexpress

Genomic modulators of gene expression in human neutrophils

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2010-04-01 | E-GEOD-11247 | biostudies-arrayexpress

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2022-11-29 | E-MTAB-11190 | biostudies-arrayexpress

Peripheral blood stem cell gene and microRNA profiling

Project description:Mobilized-peripheral blood hematopoietic stem cells (HSCs) have been used for transplantation, immunotherapy, and cardiovascular regenerative medicine. Agents used for HPC mobilization include G-CSF and the CXCR4 inhibitor AMD3100. The HSCs cells mobilized by each agent may contain different subtypes and have different functions. To characterize mobilized HSCs used for clinical applications, microRNA (miRNA) profiling and gene expression profiling were used to compare AMD3100-mobilized CD133+ cells from 4 subjects, AMD3100 plus G-CSF-mobilized CD133+ cells from 4 subjects and G-CSF-mobilized CD34+ cells from 5 subjects. The HSCs were compared to peripheral blood leukocytes (PBLs) from 7 subjects. This SuperSeries is composed of the following subset Series: GSE11247: Peripheral blood stem cell gene profiling GSE11248: Peripheral blood stem cell microRNA profiling Keywords: SuperSeries Refer to individual Series

2010-04-01 | E-GEOD-11255 | biostudies-arrayexpress

Changes in gene expression of granulocytes during in vivo G-CSF/dexamethasone mobilization.

Project description:Treatment of healthy donors with G-CSF and dexamethasone, results in sufficient number of circulating granulocytes to prepare granulocyte concentrates for clinical purposes. Granulocytes obtained this way demonstrate relatively normal functional behavior combined with a prolonged life span. To study the influence of mobilizing agents on granulocytes, we used oligonucleotide microarrays to identify genes that are differentially expressed in mobilized granulocytes as compared to control ones. Keywords: mobilized granulocytes, G-CSF/dexamethasone treated granulocytes Granulocytes were isolated from three individuals before (control situation) and 18 hours after treatment with G-CSF&dexamethasone; part of the control cells was cultured overnight in HBSS medium with or without addition of G-CSF and dexamethasone. Total RNA from each experimental condition was compared to pooled RNA of control granulocytes.

2010-04-03 | E-GEOD-12841 | biostudies-arrayexpress

Comparison of monocytes from G-CSF mobilized and normal peripheral blood

Project description:A prospective randomized trial has shown that there is a survival advantage for allogeneic transplant patients receiving Granulocyte Colony Stimulating Factor (G-CSF) stimulated peripheral blood mononuclear cells (GPBMC) versus bone marrow (BM) as a source of stem cells. The biological basis for this advantage is not clear, and may be attributable to qualitative as well as quantitative differences in the CD34 cells, T-cells and/or the monocytes transplanted. To begin to address this issue, gene expression patterns in monocytes isolated from G-CSF mobilized peripheral blood were compared those from normal, non-mobilized peripheral blood to identify functional pathways that may distinguish these two populations. Keywords: Cell type comparison

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AMD3100 and G-CSF Mobilize Different CD34+ Cell Populations Based on Gene and miRNA Expression

2009-12-05 | GSE16936 | GEO

Identification of bone morphogenetic protein (BMP)-7 as a key instructive factor for human epidermal Langerhans cell differentiation and proliferation

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2013-10-18 | E-GEOD-49085 | biostudies-arrayexpress

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