Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Bone marrow erythroblast arrays

ABSTRACT: JAK2V617F mutation is found in most patients with a myeloproliferative neoplasm (MPN), including polycythemia vera (PV), essential thrombocythemia (ET). We have demonstrated that heterozygous human JAK2V617F are associated with ET-like phenotypes while homozygosity for human JAK2V617F results in a striking phenotypic switch from an ET-like to PV-like phenotype. The resultant erythrocytosis is driven by increased numbers of erythroid progenitors and enhanced erythroblast proliferation. To establish the molecular mechanisms and pathways involved in the erythrocytosis, microarray was performed on bone marrow erythroblasts isolated from 8-10 weeks old homozygous, heterozygous mice and wildtype controls (3 mice for each genotype).

ORGANISM(S): Mus musculus

SUBMITTER: Juan Li

PROVIDER: E-MTAB-2427 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Gene expression data from CD34+ BMMCs/PBMCs from JAK2V617F positive and CALR mutated MPN patients

2018-10-29 | GSE120362 | GEO

Gene expression data from CD34+ BMMCs/PBMCs from JAK2V617F positive MPN patients vs. Healthy controls

Project description:Philadelphia chromosome-negative myeloproliferative neoplasms (MPN) consist of primary myelofibrosis (PMF), polycythemia vera (PV), essential thrombocythemia (ET) and seconday myelofibrosis (pPV-MF or pET-MF) In this dataset, we compare the gene expression data of bone marrow (BM) or peripheral blood (PB) mononuclear cells of CD34+ cells from JAK2V617F mutated patients vs. healthy donors

2022-08-26 | GSE136335 | GEO

Gene expression data from CD34+ BMMCs/PBMCs from MPN patients vs. healthy controls

Project description:Philadelphia chromosome-negative myeloproliferative neoplasms (MPN) consist of primary myelofibrosis (PMF), polycythemia vera (PV), essential thrombocythemia (ET) and seconday myelofibrosis (SMF), comprising post-ET-MF(pET-MF) and post-PV-MF(pPV-MF). In this dataset, we compare the gene expression data of bone marrow or peripheral blood mononuclear cells (BMMCs/PBMCs) of CD34+ cells from MPN patients and healthy donors.

2021-11-24 | GSE174060 | GEO

Transcriptional profiling of normal and JAK2V617F-positive erythroblasts of polycythemia vera and essential thrombocythemia

Project description:This experiment was designed to identify genes differentially expressed in association with the JAK2V617F mutation in polycythemia vera (PV) and essential thrombocythemia (ET). Peripheral blood was obtained from 20 ET and 16 PV patients and erythroid progenitors were grown in semi-solid methylcellulose media supplemented with 0.01 U/ml erythropoietin. Individual clones were plucked and genotyped for the presence of the JAK2V617F mutation, and up to 20 normal and mutant colonies were pooled from each patient, and subjected to expression profiling. In total, 72 expression profiling datasets were generated, representing paired samples of normal and mutant cells from 36 patients.

2011-11-22 | E-MTAB-384 | biostudies-arrayexpress

Investigating the proteome of red blood cells and reticulocytes in Polycythemia Vera and Essential Thrombocythemia

Project description:The project aims at comparing the effect of the JAK2V617F mutation on protein expression in human erythroid cells in the context of Polycythemia Vera and Essential Thrombocythemia

2022-02-17 | PXD029965 | Pride

Physiological Jak2V617F expression causes a lethal myeloproliferative neoplasm with differential effects on hematopoietic stem and progenitor cells

Project description: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. Treatment with a JAK2 kinase inhibitor ameliorated the MPN phenotype, but did not eliminate the disease-initiating population. These findings provide insights into the consequences of JAK2 activation on HSC differentiation and function and have the potential to inform therapeutic approaches to JAK2V617F positive MPN.

2010-05-15 | GSE21842 | GEO

Changes of miRNA expression in granulocytes of patients with polycythemia vera (PV) and essential thrombocythemia (ET) receiving INCB018424 in a Phase 2 study

Project description:A global microRNA expression profile was obtained from gradient-purified granulocytes (>95% pure) collected at the time of screening and at cycle 4 of treatment Protocol #18424-256 is a Phase 2 study of the JAK1 and JAK2 inhibitor INCB01842 in patients with advanced polycythemia vera (PV) and essential thrombocythemia (ET) refractory to hydroxyurea;

2012-09-26 | GSE32194 | GEO

Physiological Jak2V617F expression causes a lethal myeloproliferative neoplasm with differential effects on hematopoietic stem and progenitor cells

2010-05-28 | E-GEOD-21842 | biostudies-arrayexpress

Gene and miRNA expression profiles in Polycythemia Vera and Essential Thrombocythemia according to CALR and JAK2 mutations [miEP]

Project description:Polycythemia vera (PV) and essential thrombocythemia (ET) are Philadelphia-negative myeloproliferative neoplasms (MPNs) characterized by erythrocytosis and thrombocytosis, respectively. Approximately 95% of PV and 50–70% of ET patients harbour the V617F mutation in the exon 14 of JAK2 gene, while about 20-30% of ET patients carry CALRins5 or CALRdel52 mutations. These ET CARL-mutated subjects show higher platelet count and lower thrombotic risk compared to JAK2-mutated patients. Here we showed that CALR-mutated and JAK2V617F-positive CD34+ cells have different gene and miRNA expression profiles. Indeed, we highlighted several pathways differentially activated between JAK2V617F- and CALR-mutated progenitors, i.e. mTOR, MAPK/PI3K and MYC pathways. Furthermore, we unveiled that the expression of several genes involved in DNA repair, chromatin remodelling, splicing and chromatid cohesion are decreased in CALR-mutated cells. According to the low risk of thrombosis in CALR-mutated patients, we also found the down-regulation of several genes involved in thrombin signalling and platelet activation. As a whole, these data support the model in which CALR-mutated ET could be considered as a distinct disease entity from JAK2V617F-positive MPNs and may provide the molecular basis supporting the different clinical features of these patients.

2018-03-01 | GSE103238 | GEO

Gene and miRNA expression profiles in Polycythemia Vera and Essential Thrombocythemia according to CALR and JAK2 mutations [GEP]

2018-03-01 | GSE103237 | GEO