GEO DataSets

(Submitter supplied) Decline in hematopoietic function in aged individuals is associated with expansion of phenotypic hematopoietic stem cells (HSCs) and a shift in their lineage potential toward production of myeloid cells. Both HSC-intrinsic changes, and extrinsic changes in the bone marrow (BM) microenvironment, have been identified in old mice and humans. However, to extend healthy and robust hematopoietic function from youth into older age, we need to understand and effectively target the processes that initiate functional hematopoietic decline. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

14 Samples

Download data: MTX, TSV

(Submitter supplied) Analysis of hematopoietic stem cells (HSC, Lineage-Sca-1+c-Kit+Flt3–CD34–). In order to better experiment, we treated mice with total body irradiation and local irradiation respectively. Next, the HSC were purified from the bone marrow of 8 weeks WT mice (Ctrl), total body radiation mice (IR), irradiated legs of locally irradiated mice (L_IR) and the other leg which unirradiated of locally irradiated mice (Ab_IR). more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

12 Samples

Download data: TXT

(Submitter supplied) Insulin-like growth factor-1 (IGF-1) is known as a hematopoietic factor which impacts hematopoietic reconstitution and facilitates thrombopoiesis, although its direct effect on hematopoietic stem cells (HSCs) remains unclear. Here, we show that IGF-1 rapidly prompts megakaryocyte (Mk)-lineage differentiation of HSCs by enhancing mitochondrial activity in HSCs. To identify the phenotype switching and function variation in HSCs with IGF-1 treatment, we performed RNA-seq of HSCs from the bone marrow of mice with single-dose IGF-1 treatment (IGF-1) and their age-matched control mice (Ctrl).

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

6 Samples

Download data: TXT

(Submitter supplied) Platelets are anucleated blood cells that are produced by their progenitor cell, the megakaryocyte (MK). Platelets are centrally positioned in hemostasis and thrombosis and, according to the recent findings, play key roles in innate immunity, inflammation, atherogenesis, and cancer metastasis. The quantitative and qualitative properties of platelets are crucial determinants of their hemostatic function. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL33010

9 Samples

Download data: TXT

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

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing; Expression profiling by high throughput sequencing

Platforms:

GPL13112 GPL17021

72 Samples

Download data: BED, BW

(Submitter supplied) To identify pathways and processes driving the observed hematopoietic stem cell (HSC) aging-like phenotypes in miR-146a-/- vs. WT, we performed RNA-seq gene expression profiling of Lin- Sca-1+ c-Kit+ (LSK) cells isolated from miR-146a-/- or WT mouse bone marrow (BM). Differential expression analysis and EnrichmentMap network analysis identified cytokine signalling and immune pathways as potential drivers of aging-like alterations in miR-146a-/- HSC proliferation and differentiation.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

2 Samples

Download data: TSV

(Submitter supplied) Aging is associated with significant changes in the hematopoietic system, including increased inflammation, impaired hematopoietic stem cell (HSC) function, and increased incidence of myeloid malignancy. Inflammation of aging (“inflammaging”) has been proposed as a driver of age-related changes in HSC function and myeloid malignancy, but mechanisms linking these phenomena remain poorly defined. Here, we identify loss of miR-146a as driving aging-associated inflammation in AML patients. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL13112

1 Sample

Download data: BW

(Submitter supplied) Aging is associated with significant changes in the hematopoietic system, including increased inflammation, impaired hematopoietic stem cell (HSC) function, and increased incidence of myeloid malignancy. Inflammation of aging (“inflammaging”) has been proposed as a driver of age-related changes in HSC function and myeloid malignancy, but mechanisms linking these phenomena remain poorly defined. Here, we identify loss of miR-146a as driving aging-associated inflammation in AML patients. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL17021

69 Samples

Download data: BED

(Submitter supplied) Hematopoietic stem cells (HSCs) must ensure adequate blood cell production following distinct external stressors. A comprehensive understanding of in vivo heterogeneity and specificity of HSC responses to external stimuli is currently lacking. We performed single-cell RNA sequencing (scRNA-Seq) on functionally validated mouse HSCs and LSK (Lin-, c-Kit+,Sca1+) progenitors after in vivo pharmacological perturbation of niche signals interferon, granulocyte-colony stimulating factor (G-CSF), and prostaglandin. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19057 GPL24247

13 Samples

Download data: BED, CSV, MTX, TSV

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

Organism:

Mus musculus

Type:

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

Platform:

GPL13112

24 Samples

Download data: BEDGRAPH

(Submitter supplied) Bone marrow mesenchymal stromal cells (MSCs) that express high levels of stem cell factor (SCF) and CXC chemokine ligand 12 (CXCL12) are one crucial component of the hematopoietic stem cell (HSC) niche. While the secreted factors produced by MSCs to support HSCs have been well described, little is known regarding the transcriptional regulators controlling the cell fate of MSCs and thus indirectly maintaining HSCs. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

6 Samples

Download data: CSV

(Submitter supplied) The HSC niche factor SCF is required for HSC maintenance. Using an Scf-GFP knockin mouse, we have identified a perivascular cell type in the bone marrow expressing high level of Scf. To characterize the novel Scf-GFP+ cells from the bone marrow, we performed microarray analysis on these cells.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

6 Samples

Download data: CEL

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

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL21103 GPL19057

50 Samples

Download data

(Submitter supplied) Mature blood cells are maintained throughout life by hematopoietic stem cells (HSC). With aging, both HSC self-renewal as well as multi-lineage differentiation fidelity decline, a process determined by cell-intrinsic and –extrinsic factors. We here studied which aging-associated bone marrow (BM) alterations contribute to this process. Aged specific pathogen free (SPF) WT mice have increased systemic levels of microbial compounds compared to their young counterparts. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

30 Samples

Download data: CSV

(Submitter supplied) We have performed ATAC-seq in highly purified Hematopoeitic Stem cells (HSC, LSK/SLAM) from young (4-5mo) and old (20-24mo) C57BL/6J in order to investigate differences in chromatin accessible sites between these 2 groups.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19057

4 Samples

Download data: BROADPEAK, CSV, NARROWPEAK

(Submitter supplied) Here, we investigate the role of Early B-cell factor 1 (EBF1) in MSCs to support hematopoiesis. Ebf1 deletion in Cxcl12-abundant reticular (CAR) cells and PDGFRα+Sca1+CD45-CD31-Lin- (PαS) cells in the bone marrow decreases the numbers of HSCs and myeloid cells. Single cell and bulk transcriptome analysis, combined with analysis of chromatin accessibility in EBF1-deficient MSCs revealed decreased expression of adhesion molecules and altered niche composition. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL17021 GPL21493

74 Samples

Download data: TXT

(Submitter supplied) Crosstalk between mesenchymal stromal cells (MSCs) and hematopoietic stem and cells (HSCs) is essential for hematopoietic homeostasis and lineage output. Here, we investigate the role of Early B-cell factor 1 (EBF1) in MSCs to support hematopoiesis. Ebf1-/- MSCs have reduced mesenchymal lineage potential. Ebf1 deletion in Cxcl12-abundant reticular (CAR) cells and PDGFRα+Sca1+CD45-CD31-Lin- (PαS) cells in the bone marrow decreases the numbers of HSPCs and myeloid cells. more...

Organism:

Mus musculus

Type:

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

Platforms:

GPL19057 GPL21493

24 Samples

Download data: BW, NARROWPEAK, TXT

(Submitter supplied) Crosstalk between mesenchymal stromal cells (MSCs) and hematopoietic stem and cells (HSCs) is essential for hematopoietic homeostasis and lineage output. Ebf1-deficient MSCs have reduced mesenchymal lineage potential. Ebf1 deletion in Cxcl12-abundant reticular (CAR) cells and PDGFRα+Sca1+CD45-CD31-Lin- (PαS) cells in the bone marrow decreased the numbers of HSPCs and myeloid cells. EBF1 in the bone marrow niche regulates a transcriptional program that determines the functional interactions with HSCs and the long-term balance between the myeloid and lymphoid cell fates.

Organism:

Mus musculus

Type:

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

Platforms:

GPL21493 GPL19057

20 Samples

Download data: BW, TXT

(Submitter supplied) To begin to explore mechanisms by which microbiota signals regulate HSC lineage bias, gene expression profiling was performed on sorted LSK-SLAM cells from aged SPF and aged GF mice.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL21163

6 Samples

Download data: TXT, XLSX

(Submitter supplied) Single cell RNA-Seq time-course analysis revealed that as pre-HSCs mature into fetal liver-stage HSCs they show signs of interferon exposure, multi-lineage differentiation gene expression signatures, and prolonged cell cycle reminiscent of quiescent adult HSCs.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

127 Samples

Download data: CSV