GEO DataSets

Analysis of at E14.5 fetal livers of Tropomodulin3 (Tmod3) deficient mutants. Tmod3 deletion leads to embryonic lethality at E14.5-E18.5, with anemia due to defects in definitive erythropoiesis in the fetal liver. Results provide insight into the role of Tmod3 in erythroid differentiation.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 2 genotype/variation sets

Platform:

GPL6246

Series:

GSE51960

6 Samples

Download data: CEL

(Submitter supplied) Tropomodulins (Tmods) cap the pointed ends of actin filaments in erythroid and nonerythoid cell types. Targeted deletion of mouse Tmod3 leads to embryonic lethality at E14.5-E18.5, with anemia due to defects in definitive erythropoiesis in the fetal liver. BFU-E and CFU-E colony numbers are greatly reduced, indicating defects in progenitor populations. Flow-cytometry of fetal liver erythroblasts shows late stage populations are also decreased, including reduced percentages of enucleated cells. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS4827

Platform:

GPL6246

6 Samples

Download data: CEL

(Submitter supplied) The serine threonine kinase Stk40 has been shown to involve in mouse embryonic stem cell differentiation, pulmonary maturation and adipocyte differentiation. Here we report that targeted deletion of Stk40 leads to fetal liver hypoplasia and anemia in the mouse embryos. The reduction of erythrocytes in the fetal liver is accompanied by increased apoptosis and compromised erythroid maturation. Stk40-/- fetal liver cells have significantly reduced colony forming units (CFUs) capable of erythroid differentiation, including burst forming unit-erythroid (BFU-E), colony forming unit-erythroid (CFU-E), and CFU-granulocyte, erythrocyte, megakaryocyte and macrophage (CFU-GEMM), but not CFU-granulocyte/macrophages (CFU-GM). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

4 Samples

Download data: CEL, XLSX

(Submitter supplied) Homozygous disruption of c-Maf led to embryonic lethality and impaired erythroblastic island formation. c-Maf is expressed in the fetal liver macrophages. It suggests that macrophages are responsible for the lethality of c-Maf knock-out embryos. To search downstream genes of c-Maf, we surveyed genes associated with macrophage function by microarray analysis. keywords: c-Maf, macrophage, erythroblastic islands,

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

2 Samples

Download data: CEL, CHP

(Submitter supplied) We identified a role for E2F-2 in the regulation of erythroblast nuclear condensation and enucleation. To help define the mechanism by which E2F-2 regulates these processes, we performed RNA-sequencing on undifferentiated hematopoietic cells and sorted, orthochromatic erythroblasts obtained from wildtype and E2F-2 knockout animals. In undifferentiated progenitor cells we find a limited number of differentially expressed genes associated with E2F-2-loss, likely due to compensation by other E2F family members. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16331

8 Samples

Download data: TXT

(Submitter supplied) Transcription cofactor Rcor1 has been linked biochemically both to neurogenesis and hematopoiesis. Here we studied the function of Rcor1 in vivo and showed it is essential to erythropoeisis during embryonic development. Rcor1 mutant proerythroblasts, unlike normal cells, can form myeloid colonies in vitro. To investigate the underlying molecular mechanisms for block of erythropoiesis and increased myeloid potential, we used RNA-seq to reveal the differentially expressed genes from erythroid progenitors due to depletion of Rcor1.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

4 Samples

Download data: TXT

(Submitter supplied) Rb null embryos exhibit defective fetal liver erythropoiesis. We used microarrays to compare Wt and Rb null fetal livers and to analyse gene expression differences which accompany and may underlie Rb null fetal liver degeneration, erythroid failure, and erythropoietic island dissolution. We used microarrays to compare Wt and Rb null fetal livers and analyse gene expression changes which accompany and may underlie fetal liver. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS2757

Platform:

GPL81

6 Samples

Download data: CEL

Analysis of embryonic day 12.5 livers from retinoblastoma protein (Rb)-null mutants. Rb-null embryos exhibit defective fetal liver erythropoiesis. Results provide insight into the molecular basis of the erythroblastic island defect in the Rb-null fetal liver.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 genotype/variation sets

Platform:

GPL81

Series:

GSE6787

6 Samples

Download data: CEL

(Submitter supplied) The supply of red blood cells (RBCs) is not sufficient in many developing countries or in developed countries for patients who need chronic transfusion from best-matched donors. Ex vivo expansion and maturation of human erythroid precursor cells (erythroblasts) could represent a potential solution. Proliferating erythroblasts can be expanded from human umbilical cord blood mononuclear cells (CB MNCs) ex vivo for 10^6-10^7 fold (in ~50 days) before undergoing senescence. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10739

14 Samples

Download data: CEL

(Submitter supplied) Erythropoiesis in mammals replenishes the circulating red blood cell (RBC) pool from hematopoietic stem/progenitor cells (HSPCs). Two distinct erythropoietic programs have been described. In the first trimester, hematopoietic precursors in the fetal yolk sac follow a primitive pattern of erythropoiesis. However, in the second trimester, hematopoietic stem cells (HSCs) from the fetal liver and later from the bone marrow differentiate by a definitive program of erythropoiesis to yield enucleated erythrocytes. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17586

74 Samples

Download data: CEL

(Submitter supplied) We report that Setd8 is essential for murine erythropoeisis. Setd8 null erythroblasts have severe defects in cell cycle progression, chromatin condensation,and heterochromatin integrity. They also have dysregulated gene expression.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

6 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Non-coding RNA profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9185

22 Samples

Download data: TXT, WIG

(Submitter supplied) It is unclear how epigenetic changes regulate the induction of erythroid-specific genes during terminal erythropoiesis. Here we use global mRNA sequencing (mRNA-seq) and chromatin immunoprecipitation coupled to high-throughput sequencing (CHIP-seq) to investigate the changes that occur in mRNA levels, RNA Polymerase II (Pol II) occupancy and multiple post-translational histone modifications when erythroid progenitors differentiate into late erythroblasts. more...

Organism:

Mus musculus

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL9185

4 Samples

Download data: TXT

(Submitter supplied) Here we globally analyzed mRNA and epigenetic changes in both early erythroid progenitors and late erythroblasts. Concomitant with gene induction there was an increase in RNA Pol II binding and activation marks near the transcriptional start site (TSS) and the elongation mark H3K79me2 (but not H3K36me3),both near the TSS and along the full gene length. In contrast, most repressed genes became depleted of elongation marks. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9185

18 Samples

Download data: TXT, WIG

(Submitter supplied) SETD8 is the sole methyltransferase capable of mono-methylating histone H4, lysine 20. SETD8 is highly expressed in erythroid cells and erythroid deletion of Setd8 is embryonic lethal by embryonic day 11.5 (E11.5) due to profound anemia, suggesting it has an erythroid-specific function. To gain insights into the function of SETD8 during erythroid differentiation, we performed ATAC-seq on sorted populations of E10.5 Setd8 null and control erythroblasts. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17021

5 Samples

Download data: BW, NARROWPEAK

(Submitter supplied) Erythropoiesis is a tightly regulated process in which multipotential hematopoietic stem cells give rise to mature red blood cells. Here, we show that Parp-2 deficiency in mice leads to chronic anemia, despite increased EPO plasma levels, providing a novel role for Parp-2 in erythropoiesis. Loss of Parp-2 causes shortened red blood cells lifespan and impaired differentiation of erythroid cells. Transcriptomic analyses revealed the activation of the p53-dependent-DNA damage response pathways on Parp-2-deficient erythroblasts, triggering the expression of genes involved in cell cycle checkpoints and apoptosis. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

4 Samples

Download data: CEL

(Submitter supplied) Terminal differentiation of mammalian erythroid progenitors involves 4-5 cell divisions and induction of many erythroid important genes, followed by chromatin and nuclear condensation and enucleation. The protein levels of c-myc (Myc) are reduced dramatically during late stage erythroid maturation, coinciding with cell cycle arrest in G1-phase and enucleation, suggesting possible roles for c-myc in either or both of these processes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6885

15 Samples

Download data: TXT

(Submitter supplied) Erythropoietic homeostasis is coordinated by erythroblast development and challenged by a number of genetic diseases including polycythemia vera. Erythroblasts and central macrophages form erythroblastic islands to provide a specific environment for erythropoiesis. However, how central macrophages interplay with erythroblasts during erythropoiesis remains to be further clarified. In this study, we found that erythroid-specific TFPI knockout decreased the number of erythroblasts under both steady-state and stress conditions, and the function of TFPI in erythropoiesis was mediated by macrophages. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

6 Samples

Download data: TXT

(Submitter supplied) Erythropoiesis takes place mostly in bone marrow and ends in blood. Previous studies have shown that hypoxia has direct effects on the bone marrow, which could promotes erythropoiesis by modulating erythroid progenitor maturation. However, how bone marrow microenvironment participates in erythropoiesis under hypoxia still need further clarification. In this study, we analyzed transcriptional changes of bone marrow cells of mice exposed to 5000 m altitude hypoxia for 1 week. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

6 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing; Other

Platforms:

GPL19057 GPL16417

42 Samples

Download data: BW, TAB