Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

34 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcriptional profiling of Dicer conditional knockout hematopoietic stem cells.

ABSTRACT: Gene expression of HSC (Lin-Sca-Kit+Flt3-) hematopoietic stem cells from Dicer D/+ mice was compared with LT-HSC from DicerD/D mice. BM cells were noncompetitively transplanted into irradiant recipients, and deletion induced by poly(IC) injection. Donor-derived HSCs were isolated by FACS sorting of recipient bone marrow. Biological replicates of each (2 per genotype) were generated and expression profiles were determined by hybridization to Affymetrix Moe430_2 arrays.

ORGANISM(S): Mus musculus

SUBMITTER: Claus Nerlov

PROVIDER: E-MTAB-674 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Dicer is selectively important for the earliest stages of erythroid development.

Buza-Vidas Natalija N Cismasiu Valeriu B VB Moore Susan S Mead Adam J AJ Woll Petter S PS Lutteropp Michael M Melchiori Luca L Luc Sidinh S Bouriez-Jones Tiphaine T Atkinson Deborah D O'Carroll Donal D Jacobsen Sten Eirik W SE Nerlov Claus C

Blood 20120806 12

MicroRNAs (miRs) are involved in many aspects of normal and malignant hematopoiesis, including hematopoietic stem cell (HSC) self-renewal, proliferation, and terminal differentiation. However, a role for miRs in the generation of the earliest stages of lineage committed progenitors from HSCs has not been identified. Using Dicer inactivation, we show that the miR complex is not only essential for HSC maintenance but is specifically required for their erythroid programming and subsequent generatio ...[more]

PMID: 22869792

Similar Datasets

Transcription profiling of mouse LT-HSC hematopoietic stem cells from wild type and Cebpa knock-in mutant strains

Project description:Gene expression of LT-HSC (CD150+Flt3-lin-Sca-Kit+) hematopoietic stem cells from wild type mice was compared with LT-HSC from Cebpa knock-in mutant mice (K/L mutants). Fetal liver cells for each genotype were competitively transplanted into irradiant recipients. Donor-derived LT-HSC cells were isolated by FACS sorting of recipient bone marrow. Biological replicates of each (3 for wt, 2 for K/L) were generated and expression profiles were determined by hybridization to Affymetrix Moe430_2 arrays.

2009-11-03 | E-TABM-694 | biostudies-arrayexpress

Genes affected by Satb1 deficiency in HSC, LMPP and CLP

Project description:To understand gene expression signatures between wild-type and Satb1-deficient cells To examine genes regulated by Satb1 expression, sets of microarrays were conducted with Lin- c-kitHi Sca-1+ Flt3- HSC-enriched cells, Lin- c-kitHi Sca-1+ Flt3+LMPP-enriched cells, and Lin- c-kitLo Sca-1Lo IL7RÎ±+ CLP-enriched cells derived from E18.5 FL of Satb1-null mice or their WT littermates.

2013-03-20 | E-GEOD-45299 | biostudies-arrayexpress

Transcriptional profiling of Cebpa knock-in mutant LSK hematopoietic stem cells

Project description:Gene expression of LSK (lin-Sca-Kit+) hematopoietic stem cells from wild type mice was compared with LSK from Cebpa knock-in mutant mice (K/K, K/L, and L/L mutants). Fetal liver cells for each genotype were competitively transplanted into irradiant recipients. Donor-derived LSK cells were isolated by FACS sorting of recipient bone marrow. 3 biological replicates of each were generated and expression profiles were determined by hybridization to Affymetrix Moe430_2 arrays.

2009-11-03 | E-TABM-695 | biostudies-arrayexpress

Transcriptome data of MHCII-high and MHCII-low hematopoietic stem cells of middle-aged mice

Project description:Analysis of MHCII-high (MHCII-hi) and MHCII-low (MHCII-lo) hematopoietic stem cells (Lineage-Sca-1+c-Kit+CD150+Flt3-CD48-). The two population of hematopoietic stem cell (HSC) were purified from the bone marrow of 12 months old (12 mo) mice. Results provide insight into the role of MHCII in HSC.

2023-08-08 | GSE211206 | GEO

Transcriptome data of MHCII-high and MHCII-low hematopoietic stem cells of mice under homeostasis

Project description:Analysis of MHCII-high (MHCII-hi) and MHCII-low (MHCII-lo) hematopoietic stem cells (Lineage-Sca-1+c-Kit+CD150+Flt3-CD48-). The two population of hematopoietic stem cell (HSC) were purified from the bone marrow of 5 months old WT mice (Ctrl). Results provide insight into the role of MHCII in HSC.

2023-08-08 | GSE211203 | GEO

Transcriptome data of MHCII-high and MHCII-low hematopoietic stem cells of mice exposed to irradiation

Project description:Analysis of MHCII-high (MHCII-hi) and MHCII-low (MHCII-lo) hematopoietic stem cells (Lineage-Sca-1+c-Kit+CD150+Flt3-CD48-). The two population of hematopoietic stem cell (HSC) were purified from the bone marrow of mice at 3 months post 5 Gy total body irradiation (IR). Results provide insight into the role of MHCII in HSC.

2023-08-08 | GSE211205 | GEO

Transcriptome data of hematopoietic stem cells of mice under ionizing radiation

Project description: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). Results provide the injury effect of IR on HSC under different conditions.

2024-06-05 | GSE244971 | GEO

Expression data from control and LRF (leukemia/lymphoma related factor)-deficient mouse LT-HSCs

Project description:LRF, which is encoded by the ZBTB7A gene and formerly known as POKEMON (POK erythroid myeloid ontogenic factor), was originally identified as a PLZF (promyelocytic leukemia zinc finger) homologue interacting with BCL6 (B-cell lymphoma 6). LRF is a transcription factor that is broadly expressed in hematopoietic lineage cells, but its expression is particularly high in erythroblasts and germinal center (GC) B-cells. The goal of this study is to assess the effect of LRF loss on the LT-HSC transcriptome. Nine days after injection of adult mice with polyinosinic polycytidylic acid (pIpc) to activate Cre, total RNAs were isolated from double-sorted LT-HSCs from LRF Flox/+ Mx1-Cre+ and LRF Flox/Flox Mx1-Cre+ mice and processed for microarray analysis. We performed gene expression microarray analysis of FACS-sorted LT-HSCs (LSK IL7Ra-Flt3-CD150+CD48-) to assess the effect of Lrf loss on the LT-HSC transcriptome. Zbtb7a Flox/+ Mx1-Cre+ mice were used as a control to normalize the potential effects of Cre recombinase. LT-HSCs were FACS-sorted from three Lrf knockout (Zbtb7a Flox/Flox Mx1-Cre+) and two control (Zbtb7a Flox/+ Mx1-Cre+) mice, nine days after the first pIpC injection.

2012-10-26 | E-GEOD-41839 | biostudies-arrayexpress

Conditional modeling of MLL-AF9 induced leukemia revealed a stem cell derived aggressive disease [Microarray]

Project description:To address the impact of cellular origin on AML, we generated an inducible transgenic mouse model for MLL-AF9 driven leukemia. MLL-AF9 expression in long-term hematopoietic stem cells (LT-HSCs) in vitro resulted in unprecedented clonogenic growth and expression of genes involved in migration and invasion. In vivo, some LT-HSC-derived AMLs were particularly aggressive with extensive tissue infiltration, chemo-resistance and expression of genes related to epithelial-mesenchymal transition (EMT) in solid cancers. Knockdown of the EMT regulators Zeb1 and Tcf4 significantly reduced leukemic blast invasion. By classifying mouse and human leukemia according to Evi1/EVI1and Erg/ERG expression, reflecting aggressiveness and cell-of-origin and performing comparative transcriptomics we identified numerous EMT-related genes that were significantly associated with poor overall survival of AML patients. RNA from primary cells as well as doxycyclin treated cells from immortalized LT-HSC and GMP (Granulocyte macrophage progenitor) celllines was isolated for expression profiling on Affymetrix gene arrays.

2016-06-27 | E-GEOD-65382 | biostudies-arrayexpress

The transition from quiescent to activated states in human hematopoietic stem cells is governed by dynamic 3D genome reorganization [Low-C]

Project description:Life-long blood production requires long-term hematopoietic stem cells (LT-HSC) - marked by stemness states involving quiescence and self-renewal - to transition into activated short-term HSC (ST-HSC) with reduced stemness. As few transcriptional changes underlie this transition, we used single-cell and bulk ATAC-seq on human HSC and stem/progenitor subsets (HSPC) to uncover chromatin accessibility signatures, one including LT-HSC (LT/HSPC signature) and another excluding LT-HSC (Act/HSPC signature). These signatures inversely correlated during early hematopoietic commitment and differentiation. The Act/HSPC signature contains CTCF binding sites mediating 351 chromatin interactions, engaged in ST-HSC but not LT-HSC, enclosing multiple stemness pathway genes active in LT-HSC and repressed in ST-HSC. CTCF silencing derepressed stemness genes, restraining quiescent LT-HSC from transitioning to activated ST-HSC. Hence, 3D chromatin interactions centrally mediated by CTCF, endow a gatekeeper function that governs the earliest fate transitions HSC make by coordinating disparate stemness pathways linked to quiescence and self-renewal.

2020-11-23 | GSE159287 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data