GEO DataSets

Analysis of Lin-Sca1+ckit+Flt3- (LSKFlt3-) hematopoietic stem cells (HSC) depleted of growth factor independence 1 (Gfi1). Transcriptional repressor Gfi1 restricts HSC proliferation and is essential to self-renewal. Results provide insight into molecular mechanisms underlying Gfi1 effects in HSCs.

Organism:

Mus musculus

Type:

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

Platform:

GPL339

Series:

GSE20282

6 Samples

Download data: CEL, CHP

(Submitter supplied) Hematopoietic stem cells (HSCs) and lymphoid-primed multi-potential progenitors (LMPPs) are able to initiate both lymphoid and myeloid differentiation. We show here that the transcriptional repressor Gfi1 (growth factor independence 1) implements a specific gene expression program in HSCs and LMPPs that is critical for their survival and lymphoid differentiation potential. We present evidence that Gfi1 is required to maintain expression of genes involved in lymphoid development such as Flt-3, IL7R, Ebf1, Rag1, CCR9 and Notch1 and controls myeloid lineage commitment by regulating expression of genes such as Hoxa9 or M-CSFR. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS4204

Platform:

GPL339

6 Samples

Download data: CEL, CHP

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

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL339

12 Samples

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(Submitter supplied) To compare the transcriptomes of T-cells from Gfi1-knockout cells with wildtype cells, spleenocytes from wildtype and Gfi-knockout C57Bl/6 mice were isolated using panT-cell kit in an AutoMACS device (Miltenyi). Cells were cultured with anti-CD3 plus anti-CD28 antibodies (2 µg antibody/ml) for the indicated time period. Total RNAs was isolated and subjected to microarray analysis on Affymetrix MOE430A_2.0 arrays. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL339

8 Samples

Download data

(Submitter supplied) to compare the transcriptomes of naïve CD4+ and CD8+ T-cells from Gfi1-knockout cells with wildtype cells, spleenocytes from wildtype and Gfi-knockout C57Bl/6 mice were isolated, stained with CD44, CD4 and CD8 antibodies and separated by using a FACS Diva (Becton Dickinson). Total RNAs isolated from 2 mice each (approximately 2xE06 cells) were pooled and subjected to microarray analysis on Affymetrix MOE430A_2.0 arrays Keywords: knockout mice

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL339

4 Samples

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(Submitter supplied) Using Gfi1b conditional mice, deletion of gfi1b in the hematopietic system was induced by injecting MxCre tg Gfi1bfl/fl mice with pIpC. 30 days after injection, Cd150 pos, Cd 48 neg, Lin neg Sca and c-kit pos stem cells were sortrted from Gfi1bfl/fl and Mxcre tg Gfi1bfl/fl mice and analysed. We used the mouse Affymetrix Gene ST Array.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

6 Samples

Download data: CEL, CHP

(Submitter supplied) The Hematopoietically-expressed homeobox transcription factor (Hhex) is important for the maturation of definitive hematopoietic progenitors and B-cells during development. We have recently shown that in adult hematopoiesis, Hhex is dispensable for maintenance of hematopoietic stem cells (HSCs) and myeloid lineages but essential for the commitment of Common Lymphoid Progenitors (CLPs) to lymphoid lineages. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

4 Samples

Download data: TXT

(Submitter supplied) Obesity is a chronic organismal stress that disrupts multiple systemic and tissue-specific functions. Here, we describe the effects of established obesity on the activity of the hematopoietic stem cell (HSC) compartment. We show that obesity promotes the selection of a quiescent HSC subset primed for activation, leading to aberrant hematopoietic stress responses. We establish that the transcription factor Gfi1 is a key regulator of the HSC fate in obesity as its increased expression in obesity induces their abnormal activity. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

6 Samples

Download data: TXT

(Submitter supplied) GFI1 is a transcriptional repressor that plays an essential role in HSCs development, lymphoid and myeloid differentiation and Acute Myeloid Leukemia (AML) pathogenesis. Low expression of Gfi1 leads to poor prognosis in AML patients and is associated with less overall survival in murine AML models. In the current study, we show that mice with a low level or loss of GFI1 expression resulted in significantly fewer HSCs compared to normal GFI1 expression. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30172

15 Samples

Download data: XLSX

(Submitter supplied) GFI136N is a coding Single Nucleotide Polymorphism (SNP) in the gene GFI1 that increases the risk for Acute myeloid leukemia (AML) by 60%. It is present in 3-5% of Caucasians and has a prevalence of 12% among AML patients. We generated knockin mice expressing either the human GFI136N variant or the more common GFI136S form and observed that GFI136N, in contrast to GFI136S, lacked the ability to bind to the Gfi1 target gene and leukemia associated transcription factor Hoxa9 in myeloid precursors and failed to initiate the histone modifications that regulate HoxA9 expression. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9250

3 Samples

Download data: BW, SAM

(Submitter supplied) Estrogens are potential regulators of the hematopoietic stem cell (HSC) niche and have effects on mature hematopoietic cells; however, whether estrogen signaling directly regulates normal and malignant HSC remains unclear. We demonstrate differential expression and specific roles of estrogen receptors (ER) in hematopoietic progenitors. ERa activation in short-term HSC and multipotent progenitors induced apoptosis. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11002

18 Samples

Download data: TXT

(Submitter supplied) Overexpression of HOXB4 in hematopoietic stem cells (HSCs) leads to increased self-renewal without causing hematopoietic malignancies in transplanted mice. The molecular basis of HOXB4-mediated benign HSC expansion in vivo is not well understood. To gain further insight into the molecular events underlying HOXB4-mediated HSC expansion, we analyzed gene expression changes at multiple time points in Lin-Sca1+c-kit+ (LSK) cells from mice transplanted with bone marrow (BM) cells transduced with a MSCV-HOXB4-ires-YFP vector. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL11180

15 Samples

Download data: CEL

(Submitter supplied) Analysis of differentially expressed genes in human Cord Blood cells cultured for 4 days and sorted into CD34+CD90+ and CD34+CD90- fractions. The objective for the experiment was to identify genes related to p53 and DNA damage response pathways

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6883

6 Samples

Download data: TXT

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

Organism:

Mus musculus

Type:

Expression profiling by array; Other

Platforms:

GPL6193 GPL17021

5 Samples

Download data: CEL

(Submitter supplied) Gfi1:Dam and Gfi1b:Dam binding analysis of sorted hemogenic endothelial cells (TIE2/C-KIT)

Organism:

Mus musculus

Type:

Other

Platform:

GPL17021

3 Samples

Download data: XLSX

(Submitter supplied) Transcriptome analysis of sorted hemogenic endothelial cells with and without Lsd1 inhibition with 300nM of compound B. Transcriptome analysis to detect the global changes in gene expression upon LSD1 inhibition.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6193

2 Samples

Download data: CEL

(Submitter supplied) In order to indentify the transcriptional differences between GFI1 KD and GFI1 KO mice that may account for differences in occurence of AML between these mice, we performed exresiion profiling by RNA-Seq on healthy young and old mice mice from both genotypes. In the case of GFI1 KD, the older mice had developped AML whereas KO mice of comparable ages did not.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

8 Samples

Download data: TXT

(Submitter supplied) Loss of Rb family in HSCs results in a severe phenotype, such as enhanced proliferation and increase in stem cell number. In addition, HSCs were higly mobilized but failed to transplant. Rb family deficient mice rapidly exhibit a myeloproliferative disease with eosinophilic characteristics. Meanwhile, the lymphoid compartment was severely decreased, due to high apoptotic activity in this lineage. Keywords: unpaired WT versus Rb family deficient KLS

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

5 Samples

Download data: CEL

(Submitter supplied) To identify the target genes of Evi-1 in hematopoietic stem cells (HSCs), we carried out genome-wide transcriptional analysis using wild-type and Evi-1-deleted HSCs.

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS3343

Platform:

GPL1261

4 Samples

Download data: CEL, CHP

Analysis of hematopoietic stem cells lacking the ecotropic viral integration site-1 (Evi-1) gene. Evi-1 is an oncogene associated with myeloid leukemia. Results provide insight into the role of Evi-1 in normal hematopoiesis.

Organism:

Mus musculus

Type:

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

Platform:

GPL1261

Series:

GSE11557

4 Samples

Download data: CEL, CHP