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Transcriptomic alterations of erythroid progenitors during ageing

ABSTRACT: Transcriptomic alterations of erythroid progenitors during ageing

PROVIDER: PRJNA541133 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9015610.fastq.gz	Fastqsanger.gz
	SRR9015611.fastq.gz	Fastqsanger.gz
	SRR9015606.fastq.gz	Fastqsanger.gz
	SRR9015607.fastq.gz	Fastqsanger.gz
	SRR9015608.fastq.gz	Fastqsanger.gz

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Transcriptomic alterations of erythroid progenitors during ageing

Project description:Functional study has revealed that the erythroid differentiation capacity is compromised during ageing. Here we report the transcriptome profiles of erythroid progenitors in the bone marrow of young and aged mice

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Expression data from in-vitro cultured mouse stress erythroid progenitors

Project description:Rapid expansion of stress erythroid progenitors is a key response to acute anemia during stress erythropoiesis. Besides the rapidly amplifying progenitors, a small population of stem-cell like erythroid progenitors undergoes limited number of cell divisions and maintains their stemness. In this study, we addressed the differences in expression profiles of regulatory genes between two stress erythroid progenitor populations that were identified by proliferation capacity and physiological status. We used microarrays to detail the gene expression profiles of stem-cell like stress erythroid progenitors and rapidly amplifying stress erythroid progenitors during stress erythropoiesis.

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Project description:This SuperSeries is composed of the following subset Series: GSE35379: Genome-wide occupancy map of GATA-1 in proliferating and differentiating murine ES cell derived erythroid progenitors (ES-EP) GSE35384: Transcriptome analysis of differentiating normal and leukemic erythroid progenitors Refer to individual Series

2012-02-27 | E-GEOD-35385 | biostudies-arrayexpress

Comprehensive analysis of human proteomic erythroid progenitors

Project description:CD34-positive cells from peripheral blood were culture for 5 days in erythroid differentiating medium. Four progenitor stages were sorted by FACS using the established cell surface markers CD34 and CD36 with CD117, CD71, and CD105 (Yan H, Am J Hematol, 2021). A comprehensive analysis of the proteome of these four erythroid progenitor stages was done in quadruplicate using a label free proteomic approach.

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Erythroid progenitors stimulated with EPO

Project description:CD34+ progenitors were isolated from the bone marrow of three healthy volunteers. CD34+CD71+CD45RA- were FACS sorted to enrich for erythroid progenitors. The cells were cultured for four hours with or without EPO in combination with LY294002, and harvested for RNA extraction, amplification and expression analysis. A compound treatment design type is where the response to administration of a compound or chemical (including biological compounds such as hormones) is assayed. Compound Based Treatment: EPO Keywords: compound_treatment_design

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Expression analysis of ZBP-89 deficient human primary erythroid progenitors

Project description:The molecular mechanisms underlying erythroid-specific gene regulation remain incompletely understood. Closely spaced binding sites for GATA, NF-E2/maf and CACCC interacting transcription factors play functionally important roles in globin and other erythroid-specific gene expression. We and others recently identified the CACCC-binding transcription factor ZBP-89 as a novel GATA-1 and NF-E2/mafK interacting partner. Here, we examined the role of ZBP-89 in human globin gene regulation and erythroid maturation using a primary CD34+ cell ex vivo differentiation system. We show that ZBP-89 protein levels rise dramatically during human erythroid differentiation, and that ZBP-89 occupies key cis-regulatory elements within the globin and other erythroid gene loci. ZBP-89 binding correlates strongly with RNA Pol II occupancy, active histone marks, and high-level gene expression. ZBP-89 physically associates with the histone acetyltransferases (HATs) p300 and Gcn5/Trrap, and occupies common sites with Gcn5 within the human globin loci. Lentiviral shRNA knockdown of ZBP-89 results in reduced Gcn5 occupancy, decreased acetylated histone 3 levels, lower globin and erythroid-specific gene expression, and impaired erythroid maturation. Addition of the HDAC inhibitor valproic acid partially reverses the reduced globin gene expression. These findings reveal an activating role for ZBP-89 in human globin gene regulation and erythroid differentiation. Keywords: Human primary erythroid progenitors Expression data of human erythroid progenitors transduced with lentivirus expressing short hairpins against ZBP-89 and control empty vector

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