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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of human erythroid progenitors cultured with or without EPO in combination with LY294002

ABSTRACT: CD34+ progentitors 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.

ORGANISM(S): Homo sapiens

SUBMITTER: Janos Demeter

PROVIDER: E-SMDB-3500 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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PI3K/Akt-dependent Epo-induced signalling and target genes in human early erythroid progenitor cells.

Sivertsen Einar Andreas EA Hystad Marit Elise ME Gutzkow Kristine Bjerve KB Døsen Guri G Smeland Erlend Bremertun EB Blomhoff Heidi Kiil HK Myklebust June Helen JH

British journal of haematology 20061001 1

Erythropoietin (Epo) is the major regulator of differentiation, proliferation and survival of erythroid progenitors, but the Epo-induced changes in gene expression that lead to these effects are not fully understood. The aim of this study was to examine how Epo, via activation of phosphatidylinositol 3-kinase (PI3K)/Akt, exerts its role in the development of erythroid progenitors from CD34+ cells, and to identify early Epo target genes in human erythroid progenitors. In CD34+ progenitor cells, E ...[more]

PMID: 16965383

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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

2006-11-10 | GSE6260 | GEO

Effects of EPO and EST on erythroid maturation

Project description:Transcriptional profiles of human CD34+ cells cultured in EPO and EST conditions.

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Bulk ATAC-Seq on sorted cord blood hematopoietic populations

Project description:Bulk ATAC-Seq was performed on human cord-blood derived hematopoietis popuations using the following markers: LT-HSC; CD34+CD38-CD45RA-CD90+CD49f+ ST-HSC; CD34+CD38-CD45RA-CD90-CD49f- MLP; CD34+CD38-CD45RA+ CMP; CD34+CD38+ CD10-CD45RA-Flt3+CD71- GMP; CD34+CD38+ CD10-CD45RA+ CD71- MEP; CD34+CD38+ CD10-CD45RA-Flt3-CD71+ T cell; CD3+CD19- B cell; CD19+CD3- NK cell; CD56+CD3-CD19-CD14- Granulocyte; CD14+CD15+CD3-CD19- Monocyte; CD14+CD15-CD3-CD19- DC; CD11c+CD45+ Erythroid cell; CD71+GPA+

| EGAS00001004742 | EGA

Transcription profiling of human CD34+ treated with EPO at day 7 and 14 to investigate the effect of EPO on erythroid maturation.

Project description:To study transcriptional profiles in human CD34+ cell in EPO condition on day 7 and day 14. Experiment Overall Design: After obtaining informed consent, human CD34+ cells were isolated in high purity from the peripheral blood of normal human volunteers. The cells were cultured at a concentration of 104 -105 cells/mL in medium supplemented with 4 U/mL EPO (Amgen, Thousand Oaks, CA) as described previously.1 Cells were enumerated using an electronic cell counter (Coulter, Hialeah, FL). Adult and fetal hemoglobin was analysed by HPLC. RNA was extracted using QIAshredder and Rneasy Minikit.

2008-06-15 | E-GEOD-7874 | biostudies-arrayexpress

Effect of HES6 knockdown on gene expression in vitro differentiated megakaryocytes, erythroblasts and precursor cells, cultured from CB CD34+ HSPCs.

Project description:Cord blood CD34+ hematopoietic precursors (3 donors) were control or HES6 shRNA (HES6 knockdown) transduced and cultured for four days in media containing SCF, TPO and EPO to drive differentiation towards megakaryocytes and erythroid cells. After four days four subpopulations were sorted for RNA isolation to research the effect of HES6 knockdown on gene expression. We sorted megakaryocytes (CD41+) and early (CD71+ CD235-) and late (CD71+ CD235+) erythroblasts (CD41-) and CD34- precursor cells (CD41- CD71- CD235- CD34-).

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megamiR, microRNA expression profiles during megakaryocyte-erythrocyte progenitor (MEP) differentiation

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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.

2023-10-30 | PXD042615 | Pride

Genomic analysis for hematopoietic stem and progenitors cells (HSPC) generated in vitro according to ex vivo expansion protocols and their comparison with HSPC obtained fresh

Project description:Expansion for hematopoietic cells from umbilical cord blood is a strategy for use this cell source in clinic transplants, however, it is important to know about the genomic changes that can occur in expanded cells. In order to detect global expression profiles changes in hematopoietic stem and progenitors cells generated in vitro, we analyzed hematopoietics populations obtained by FACS in fresh from umbilical cord blood. HSC (fHSC) was defined as CD34+ CD38- CD71- CD45RA- Lin- and were cocultured with stromal cell line OP-9 plus FL, SCF, IL3, IL6, TPO, GMCSF and G-CSF by 7 days, after time we repurified HSC population by FACS using same immunophenotype (ivHSC). In other hand, fresh erythroid progenitors cells (fEPC) were identified as CD34+CD38+CD71+CD45RA- Lin- and fresh myeloid progenitors cells (fMPC) were identified as CD34+CD38+CD71-CD45RA+Lin-. In vitro progenitors cells (ivEPC and ivMPC) were obtained by culturing fHSC in Stemspan serum-free media plus SCF, TPO, IL6, FL and IL3 by 10 days, after time cells were repurified by FACS using same immunophenotype for fresh progenitors. In vitro generated cells were compared with their corresponding fresh population cells.

2018-06-05 | GSE107497 | GEO

Expression data for effect of LY294002 on White Matter

Project description:Characterisation of the effect of the PI3K/AKT modulator LY294002 in the murine optic nerve. Microarray analysis was performed using the Affymetrix Genechip Mouse 430 2.0 on murine optic nerves to identify bipartite effect of LY294002 on glia

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megamiR, microRNA expression profiles during megakaryocyte-erythrocyte progenitor (MEP) differentiation

Project description:This collection contains microRNA expression profiling data for samples purified from umbilical cord blood, belonging to one of the followiing populations: MEP, MEGA1, MEGA2, ERY1, ERY2, ERY3. MEP: megakaryocyte-erythrocyte precursors (defined by CD34+ CD38+ IL-3Ra- CD45RA- ); MEGA1: megakaryocyte population 1 (defined by CD34+ CD61+ CD41+ CD45- ); MEGA2: megakaryocyte population 2 (defined by CD34- CD61+ CD41+ CD45- ); ERY1: erythrocyte population 1 (defined by CD34+ CD71+ GlyA- ); ERY2: erythrocyte population 2 (defined by CD34- CD71+ GlyA- ); ERY3: erythrocyte population 3 (defined by CD34- CD71+ GlyA+ ). Keywords: microRNA, miRNA, MEP, megakaryocyte, erythrocyte, lineage specification Varied numbers of samples were analyzed per population. Each sample came from one donor. Data were normalized as described (Lu et al., Nature 435, 834-838, 2005) with modifications. Average readings from water-only labeled samples were used for probe-specific background subtraction. Linear normalization among different bead sets for the same sample was performed using readings from 2 post-control probes with equal contribution. Sample normalization was subsequently carried out assuming equal total fluorescence readings.

2010-06-26 | E-GEOD-10593 | biostudies-arrayexpress

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