GEO DataSets

(Submitter supplied) In this study, we explored the transcriptome of hematopoietic stem cells (HSCs) and megakaryocyte-erythroid progenitors (MEPs) in JAK2 V617F+ PV and ET and found that distinctive gene expression patterns within MPN subtypes begin at the HSC stage. HSCs from ET exhibited prominent megakaryocyte (Mk)-lineage priming. The differentially expressed genes (DEGs) indicated that cellular processes and signaling pathways in HSCs and MEPs from healthy donors (HDs), PV and ET patients are differentially modulated

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

22 Samples

Download data: CSV

(Submitter supplied) We report a Jak2V617F knock-in mouse myeloproliferative neoplasm (MPN) model resembling human polycythemia vera (PV). The MPN is serially transplantable and we demonstrate that the hematopoietic stem cell (HSC) compartment has the unique capacity for disease initiation but does not have a selective competitive advantage over wild type HSCs. In contrast, myeloid progenitor populations are expanded and skewed towards the erythroid lineage, but cannot transplant the disease. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

8 Samples

Download data: CEL

(Submitter supplied) Microarrays were used to assess gene expression in patients with ET, PV, and PMF before and after treatment with IFNalpha2 in a paired design.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

66 Samples

Download data: CEL

(Submitter supplied) Interferon alpha (IFNa) is an effective treatment for patients with myeloproliferative neoplasms (MPN). In addition to inducing hematological responses in most MPN patients, IFNa reduces the JAK2V617F allelic burden and can render the JAK2V617F mutant clone undetectable in some patients. The precise mechanism underlying these responses is incompletely understood and whether the molecular responses that are seen occur due to the effects of IFNa on JAK2V617F mutant stem cells is debated. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6885

16 Samples

Download data: TXT

(Submitter supplied) Transcriptomics analysis was performed on FACS purified HSPC subsets from SclCre;V617F mice and WT mice bone marrow. The goal of this study is to identify the molecular signatures that are specific to the mutant JAK2 expressing HSPC subsets. We found that mutant JAK2 activation caused dysregulated expression of large numbers of genes in primitive HSPC subsets. Furthermore, this analysis revealed molecular identity and developmental proximity of HSC CD41+/- cells within the HSPC hierarchy.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

23 Samples

Download data: CSV

(Submitter supplied) Increased energy requirement and metabolic reprograming is a hallmark of cancer cells. We found that mouse models of myeloproliferative neoplasms (MPN) expressing mutant JAK2 displayed systemic metabolic changes including hypoglycemia and adipose atrophy. Modulation of nutrient availability modified MPN manifestations and survival. Hypoglycemia in MPN mice correlated with hyperactive erythropoiesis and was due to a combination of elevated glycolysis and increased oxidative phosphorylation. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

9 Samples

Download data: TSV

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

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Expression profiling by array

Platforms:

GPL6246 GPL11002

6 Samples

Download data: CEL

(Submitter supplied) Myeloproliferative neoplasms (MPNs) are diseases caused by mutations in the haematopoietic stem cell (HSC) compartment. Most MPN patients have a common acquired mutation of Janus kinase 2 (JAK2) gene in HSCs that renders this kinase constitutively active, leading to uncontrolled cell expansion. The bone marrow (BM) microenvironment might contribute to the clinical outcomes of this common event. We previously showed that BM nestin+ mesenchymal stem cells (MSCs) innervated by sympathetic nerve fibres regulate normal HSCs. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

4 Samples

Download data: CEL

(Submitter supplied) Myeloproliferative neoplasms (MPNs) are diseases caused by mutations in the haematopoietic stem cell (HSC) compartment. Most MPN patients have a common acquired mutation of Janus kinase 2 (JAK2) gene in HSCs that renders this kinase constitutively active, leading to uncontrolled cell expansion. The bone marrow (BM) microenvironment might contribute to the clinical outcomes of this common event. We previously showed that BM nestin+ mesenchymal stem cells (MSCs) innervated by sympathetic nerve fibres regulate normal HSCs. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11002

2 Samples

Download data: TXT

(Submitter supplied) Myeloproliferative neoplasms (MPN) are clonal hematopoietic diseases that include essential thrombocytosis (ET), polycythemia vera (PV) and primary myelofibrosis (PMF) as well as BCR-ABL+ chronic myelogenous leukemia (CML). In the past several years, studies with cDNA microarrays have defined patterns of gene expression corresponding to specific molecular abnormalities, oncologic phenotypes, and clinical outcomes in hematologic malignancies. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL18390 GPL18389

45 Samples

Download data: GPR

(Submitter supplied) JAK2 activation by TPO study and its downstream targets STAT1, STAT3 and STAT5 on Mouse HPC7 stem cells on four time points. The aim is to verify wether a JAK/STAT signalling signature is similar to the age-related functional decline in the haematopoietic system.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

12 Samples

Download data: TXT

(Submitter supplied) Ageing of the hematopoietic stem cell (HSC) compartment is characterized by skewing towards the myeloid lineage and reduced stem cell function, the molecular basis of which is largely unknown. Using single cell approaches we identify features contributing to HSC exhaustion with age. A distinct subpopulation of old HSCs carried a signature indicative of impaired stem cell function, activating p53 targets involved in senescence. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

1152 Samples

Download data: TXT

(Submitter supplied) Human cSki was overexpressed using MIGR1 retrovirus in sorted murine Lin-c-Kit+Sca-1+ cells. Cells were infected and cultured for 2 days after infection prior to isolation of GFP+ve cells and microarray. GFP+ve MIGR1 and cSKI cells were compared. Each sample represents an independent infection with either cSki or MIGR1

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

12 Samples

Download data: IDAT, TXT

(Submitter supplied) As part of a study of the role of the aryl hydrocarbon receptor (Ahr) in maintenance and senescence of hematopoietic stem cells (HSC), global gene expression profiling was done with HSC isolated from Ahr-knockout and wild-type mice. HSC from young-adult (8 wk old) AhR-KO mice had changes in expression of many genes related to HSC maintenance, consistent with the phenotype observed in aging Ahr-KO mice: decreased survival rate, splenomegaly, increased circulating white blood cells, hematopoietic cell accumulation in tissues, anemia, increased numbers of stem/progenitor and lineage-committed cells in bone marrow, decreased erythroid progenitor cells in bone marrow, and decreased self-renewal capacity of HSC.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL16570

7 Samples

Download data: CEL

(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

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) Recent studies have shown that both TET2 mutation and JAK2V617F mutation are frequent in myeloproliferative neoplasms patients. The pathophysiological roles of each mutation have been elucidated in murine models, but the cooperative effect of the two mutations has not been elucidated yet. In this study, we examined the function of the cooperative effect of loss-of-TET2 function and JAK2V617F mutation in murine hematopoiesis.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

4 Samples

Download data: TXT