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Analysis of the DNA methylome and transcriptome in granulopoiesis reveal timed changes and dynamic enhancer methylation [expression]

ABSTRACT: The study investigated the changes in DNA-methylation and gene expression during granulopoiesis. To this end CMP, GMP, PMC and PMN cell populations were isolated by FACS from bonemarrow from healty donors and analysed by CAGE as well as expression and DNA microarrays

ORGANISM(S): Homo sapiens

PROVIDER: GSE49883 | GEO | 2014/04/29

SECONDARY ACCESSION(S): PRJNA217514

REPOSITORIES: GEO

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Analysis of the DNA methylome and transcriptome in granulopoiesis reveal timed changes and dynamic enhancer methylation [expression]

Project description:The study investigated the changes in DNA-methylation and gene expression during granulopoiesis. To this end CMP, GMP, PMC and PMN cell populations were isolated by FACS from bonemarrow from healty donors and analysed by CAGE as well as expression and DNA microarrays total RNA was isolated from CMP, GMP, PMC and PMN cells from human bonemarrow from 5 healty donors.

2014-04-29 | E-GEOD-49883 | biostudies-arrayexpress

Analysis of the DNA methylome and transcriptome in granulopoiesis reveal timed changes and dynamic enhancer methylation

Project description:The study investigated the changes in DNA-methylation and gene expression during granulopoiesis. To this end CMP, GMP, PMC and PMN cell populations were isolated by FACS from bone marrow from healthy donors and analysed by CAGE as well as expression and DNA microarrays. Bisulphite converted DNA from biological triplicate samples of CMP, GMP, PMC and PMN cell poplulations were hybridised to the Illumina Infinium 450k Human Methylation Beadchip.

2014-03-27 | E-GEOD-50797 | biostudies-arrayexpress

Analysis of the DNA methylome and transcriptome in granulopoiesis reveal timed changes and dynamic enhancer methylation

2014-03-27 | GSE50797 | GEO

Expression data from G0 versus G4/G5 CMP/GMP

2015-04-09 | GSE62278 | GEO

Expression data from G0 versus G4/G5 CMP/GMP

Project description:Telomere dysfunctional CMP/GMP have deregulated pathways that are associated with DNA damage signaling We compared differentially expressed genes in the G4/G5 CMP relative to the G0 control to identify pathways that may affect CMP differentiation. Bone marrow CMP and GMP cells were sorted from two paired pools of G0 TERTER/+ or G4/G5 TERTER/ER mice (5,000-20,000 cells per sample) using the Influx Cell Sorter. Every paired pool includes CMP or GMP sorted from 4 age and gender matched G0 or G4/G5 mice. RNA from the respective sorted cells was extracted using Trizol (Ambion) and profiled on 2100 Bioanalyzer (Agilent). Gene expression profiling was performed at the Sequencing and Non-coding RNA Program at MD Anderson Cancer Center. Briefly, the GeneChip® 3 IVT Express Kit (Affymetrix) was used to generate biotin-labeled cRNA, which were purified and fragmented, before target hybridization on the GeneChip® Mouse Genome 430 2.0 Array (Affymetrix) according to the manufacturer's instructions. Affymetrix raw data (CEL files) were normalized using Affymetrix Microarray Suite (MAS) version 5.0 using a TGT=100. Paired pools used in the study were: CMP pool 1: G0-1 and G4/5-1 CMP pool 2: G0-2 and G4/G5-2 GMP pool 1: G0-1 and G4/G5-1 GMP pool 2: G0-2 and G4/G5-2

2015-04-09 | E-GEOD-62278 | biostudies-arrayexpress

Erythroblastic islands foster granulopoiesis in parallel to terminal erythropoiesis

Project description:The erythroblastic island (EBI), composed of a central macrophage and surrounding maturing erythroblasts, is the erythroid precursor niche. Despite numerous studies, its precise composition is still unclear. Using multispectral imaging flow cytometry (IFC), in vitro island reconstitution, and single cell RNA-seq of EBI-component cells enriched by gradient sedimentation, we present evidence that CD11b+ cells present in the EBIs are neutrophil precursors specifically associated with bone marrow EBI macrophages, indicating that erythro-(myelo)-blastic islands are a site for terminal granulopoiesis as well as erythropoiesis and production of these lineages is dynamically regulated within this niche. We further demonstrate that the balance between these lineages is determined by pathophysiological conditions, favoring granulopoiesis during anemia of inflammation, or erythropoiesis after erythropoietin (Epo) stimulation. Finally, we provide the heterogeneous molecular profiling of EBI macrophages as revealed by Cellular Indexing of Transcriptome and Epitopes (CITE)-sequencing of mouse bone marrow EBIs at baseline and after Epo-stimulation in vivo. Altogether, these data demonstrate that EBIs serve a dual role as terminal erythropoiesis and granulopoiesis niches and the central macrophages adapt to the needs of stress erythropoiesis as well as granulopoiesis.

2022-07-22 | GSE196347 | GEO

Transcription profiles of WT and CreER-Raptor-flox/flox common myeloid progenitors (CMP), granulocyte-macrophage progenitor (GMP), or lineage negative (Lin-) stimulated with M-CSF for 12 hours

Project description:Myelopoiesis is impaired in Raptor-deleted mice (CreER-Rptor-flox/flox). To evaluate the transcriptional changes in myeloid precursors , we isolated CMP (Lin–Sca-1–c-Kit+CD34+FcγRII/IIImid), GMP (Lin–Sca-1–c-Kit+CD34+FcγRII/IIIhigh) and Lin (B220, Ly6C, Ly6G, CD3, Ter-119) negative cells (Lin–) from bone marrow of WT or CreER-Rptor-flox/flox mice. RNA was isolated from CMP and GMP immediately after sorting and Lin- cells were cultured for 12 hours with M-CSF (10 ng/mL) in 10% FBS and 1% P/S DMEM before RNA isolation. We used microarrays to compare the global transcription profiles of CMP, GMP, or Lin– stimulated with M-CSF for 12 hours from WT and CreER-Raptor-flox/flox mice.

2017-07-31 | GSE100256 | GEO

Transcriptomic analysis of emergency granulopoiesis-generated neutrophils compared to steady state (control) neutrophils

Project description:Functional analysis demonstrates that neutrophils generated by emergency granulopoiesis have elevated bactericidal activity when compared to control (steady state) neutrophils. To determine if transcriptomic changes support these functional adaptations, we performed gene expression analysis on emergency granulopoiesis and steady state neutrophils before and after infection.

2023-05-01 | GSE217064 | GEO

Changes in gene expression during G-CSF-induced emergency granulopoiesis in humans

Project description:Emergency granulopoiesis refers to the increased production of neutrophils in bone marrow and their release into circulation induced by severe infection. Several studies point to a critical role for granulocyte colony-stimulating factor (G-CSF) as the main mediator of emergency granulopoiesis. However, the consequences of G-CSF stimulation on the transcriptome of neutrophils and their precursors have not yet been investigated in humans. Here, we examine the changes in mRNA expression induced by administration of G-CSF in vivo, as a model of emergency granulopoiesis in humans. Blood samples were collected from healthy individuals after five days of G-CSF administration. Neutrophil precursors were sorted into discrete stages of maturation by flow cytometry, and RNA was subjected to microarray analysis. mRNA levels were compared to previously published expression levels in corresponding populations of neutrophil precursors isolated from bone marrow of untreated, healthy individuals. 1110 mRNAs were differentially expressed more than 2-fold throughout terminal granulopoiesis. Major changes were seen in pathways involved in apoptosis, cytokine signaling, and Toll-like receptor pathways. In addition, G-CSF treatment reduced the levels of four out of five measured granule proteins in mature neutrophils including the proantibacterial protein hCAP-18, which was completely deficient in neutrophils from G-CSF-treated donors. These results indicate that multiple biological processes are altered in order to satisfy the increased demand for neutrophils during G-CSF-induced emergency granulopoiesis in humans.

2017-04-04 | E-MTAB-4668 | biostudies-arrayexpress

Gene expression analysis of early haematopoietic progenitors

Project description:The common myelo-erythroid progenitor (CMP) was subdivided based on expression of CD27. To understand the relationship between the various CD27 fractions of the CMP and downstream progenitors (granulocyte-monocyte progenitor, GMP, and megakaryocyte-erythroid progenitor, MEP), genome-wide transcriptional analysis was used.

2016-10-31 | GSE33937 | GEO

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