GEO DataSets

Analysis of sorted CD43+/41+/235+ progenitors generated from trisomy 21 (T21) induced pluripotent stem cell (iPSC) lines. Down syndrome (DS, trisomy 21) affects many tissues, including blood, particularly during embryogenesis. Results provide insight into T21 effect on embryonic hematopoiesis.

Organism:

Homo sapiens

Type:

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

Platform:

GPL6244

Series:

GSE35561

6 Samples

Download data: CEL

(Submitter supplied) We modeled human Trisomy 21 primitive hematopoiesis using induced pluripotent stem cells (iPSCs). Primitive multipotent progenitor populations generated from Trisomy 21 iPSCs showed normal proliferative capacity and megakaryocyte production, enhanced erythropoiesis and reduced myeloid development compared to euploid iPSCs.

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4377

Platform:

GPL6244

6 Samples

Download data: CEL

(Submitter supplied) Individuals with Trisomy 21 (T21) exhibit numerous hematological abnormalities, including reductions in numbers of circulating B and T lymphocytes. To elucidate molecular mechanisms underlying these phenotypes, we differentiated human isogenic disomic and trisomic pluripotent cells, and observed that trisomic cells showed defects in B cell, but not T, cell differentiation. Global gene expression of differentiated, trisomic B cells revealed reduced expression of genes encoding endothelin signaling components, namely the Endothelin Receptor B (Ednrb), and its ligand Endothelin1 (Edn1).. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

6 Samples

Download data: CEL

(Submitter supplied) Etv2 transgene was expressed from ROSA26 locus by removing floxed STOP cassette by Vav Cre transgene. KSL or Mac1+/Gr1+ cells were sorted from control or Vav-Etv2 bone marrow and compared for gene expression in duplicate. This study will reveal the effect of Etv2 transgene in adult hematopoietic cells. The effect of Etv2 overexpression in relevant mouse tissue will be important to understand its effect in comparison with in ES cells. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

8 Samples

Download data: TXT

(Submitter supplied) Etv2 transgene was expressed from ROSA26 locus by removing floxed STOP cassette by Tie-2 Cre transgene. VE-Cad+/CD45= or VE-Cad+/CD45+ cells were sorted from control or tie-2-Etv2 E11.5 embryos (YS;yolk sac and Emb;embryo proper)and compared for gene expression in duplicate.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

16 Samples

Download data: TXT

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

Organism:

Mus musculus

Type:

Expression profiling by array; Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL1261 GPL13112

16 Samples

Download data: CEL

(Submitter supplied) The first site exhibiting hematopoietic activity in mammalian development is the yolk sac blood island, which originates from the hemangioblast. Here we performed differentiation assays, as well as genome-wide molecular and functional studies in BL-CFCs to gain insight into the function of the essential Ldb1 factor in early primitive hematopoietic development. We show that the previously reported lack of yolk sac hematopoiesis and vascular development in Ldb1-/- mouse result from a decreased number of hemangioblasts and a block in their ability to differentiate into erythroid and endothelial progenitor cells. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

6 Samples

Download data: CEL

(Submitter supplied) The first site exhibiting hematopoietic activity in mammalian development is the yolk sac blood island, which originates from the hemangioblast. Here we performed differentiation assays, as well as genome-wide molecular and functional studies in BL-CFCs to gain insight into the function of the essential Ldb1 factor in early primitive hematopoietic development. We show that the previously reported lack of yolk sac hematopoiesis and vascular development in Ldb1-/- mouse result from a decreased number of hemangioblasts and a block in their ability to differentiate into erythroid and endothelial progenitor cells. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

10 Samples

Download data: TXT

(Submitter supplied) We utilized human derived induced pluripotent stem cells (iPSCs) and iPSC derived neural progenitor cells (NPCs) from individuals with Down syndrome and sex matched controls to interrogate the cell type consequences of trisomy 21 (T21). We report the consequences of T21 on the spatial chromatin organization (Hi-C), lamina-associated domains (ChIP-seq), chromatin state (ATAC-seq), and transcriptome (RNA-seq) in an isogenic pair (euploid: Iso-E and trisomic: Iso-T cells derived from the same individual), pair of male individuals with euploid (Ma-E) and trisomic (Ma-T), pair of female individuals with euploid (Fe-E) and trisomic (Fe-T). more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

64 Samples

Download data: BW, HIC, TXT

(Submitter supplied) Epigenetic regulation of key transcriptional programs is a critical mechanism that controls hematopoietic development and thus aberrant expression patterns or mutations in epigenetic regulators occur frequently in hematologic malignancies. We demonstrate that the Polycomb protein L3MBTL1, which is monoallelically deleted in 20q- myeloid malignancies, represses the ability of stem cells to drive hematopoietic-specific transcriptional programs by regulating the expression of SMAD5 and impairing its recruitment to target regulatory regions. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

4 Samples

Download data: CEL, CHP

(Submitter supplied) Epiblast stem cells (EpiSCs) were derived from the epiblast or the ectoderm (epi/ect) of pre-gastrula stage to late-bud stage mouse embryos. To identify if the EpiSCs retain any original stage specific characteristics or which developmental stage of epi/ect they most closely related to, we performed microarray analysis to compare the gene expression profile of multiple EpiSC lines with that of epi/ect of 7 different stages.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

112 Samples

Download data: TXT

(Submitter supplied) Human embryonic stem cells (hESCs) are a powerful tool for modeling regenerative therapy. To search for the genes that promote hematopoietic development from human pluripotent stem cell, we overexpressed a list of hematopoietic regulator genes in human pluripotent stem cell-derived CD34+CD43- endothelial cells (ECs) enriched in hemogenic endothelium. Among genes tested, only SOX17, a gene encoding a transcription factor of the SOX family, promoted cell growth and supported expansion of CD34+CD43+CD45-/low cells expressing a hemogenic endothelial maker VE-cadherin. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by genome tiling array; Expression profiling by array

Platforms:

GPL14622 GPL6244

19 Samples

Download data: CEL, TXT

(Submitter supplied) Overexpression of transcription factor Sox17 in human ES cells-derived endothelial cells enhances expansion of hemogenic endothelium-like cells.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL14622

1 Sample

Download data: TXT

(Submitter supplied) Overexpression of transcription factor Sox17 in human ES cells-derived endothelial cells and hematopoietic cells enhances expansion of hemogenic endothelium-like cells.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

18 Samples

Download data: CEL

(Submitter supplied) Specialized tissue macrophages arise during embryogenesis from yolk-sac (YS) progenitors that migrate into developing tissues and terminally differentiate in situ. Until recently, it has been impossible to isolate or derive sufficient numbers of YS-derived macrophages for further study, but data now suggest that induced pluripotent stem cells (iPSCs) can be driven to undergo a process reminiscent of YS-hematopoiesis in vitro. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

24 Samples

Download data: TXT

(Submitter supplied) In vitro generation of mature neutrophils from human induced pluripotent stem cells (iPSCs) requires hematopoietic progenitor development followed by myeloid differentiation. The purpose of our studies was to extensively characterize this process, focusing on the critical window of development between hemogenic endothelium, hematopoietic stem/progenitor cells (HSPCs), and myeloid commitment, to identify associated regulators and markers that might enable the stem cell field to improve the efficiency and efficacy of iPSC hematopoiesis. more...

Organism:

Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL20277

16 Samples

Download data: SDS, TXT

(Submitter supplied) Human trisomies can alter cellular phenotypes and produce congenital abnormalities such as Down Syndrome (DS). Here we have generated induced pluripotent stem cells (iPSCs) from DS fibroblasts, and introduced a TKNEO transgene into one copy of chromosome 21 by gene targeting. When selecting against TKNEO, spontaneous chromosome loss was the most common cause for survival, with a frequency of ~10-4, while point mutations, epigenetic silencing, and TKNEO deletions occurred at lower frequencies in this unbiased comparison of inactivating mutations. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

8 Samples

Download data: TXT

(Submitter supplied) Global gene expression analysis of human embryoid body (hEB) differentiations during differentiation in serum free conditions in the presence of BMP4, VEGF, and FGF2 growth factors A total of 5 samples are analyzed. Each sample is taken at each time point. There is no replicate. H1_hESC_day0 sample is used as control to compare to other samples Keywords: Cell differentiation

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6480

5 Samples

Download data: TXT

(Submitter supplied) Despite the prevalence and clinical importance of Down syndrome, little is known as to the specific cell pathologies that underlie this multi-system disorder. To understand which cell types and pathways are more directly impacted by trisomy 21, we used an inducible-XIST system to silence the extra chromosome 21 in a panel of patient-derived iPSCs. Transcriptomic analysis showed significant dysregulation of potentially impacting programming of multiple cell-types as well as Notch. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20301

72 Samples

Download data: TXT

(Submitter supplied) Background: Recent advances in single-cell techniques have provided the opportunity to finely dissect cellular heterogeneity within populations previously defined by “bulk” assays and to uncover rare cell types. In human hematopoiesis, megakaryocytes and erythroid cells differentiate from a shared precursor, the megakaryocyte-erythroid progenitor (MEP), which remains poorly defined.Results: To clarify the cellular pathway in erythro-megakaryocyte differentiation, we correlated the surface immunophenotype, transcriptional profile and differentiation potential of individual MEP cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL21608

807 Samples

Download data: CSV, TXT