Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

12 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Gene expression changes after loss of Hoxa9 in transformed HSCs [HOXA9 RNA-seq]

ABSTRACT: Characterization of gene expression changes 72 hours after withdrawal of tamoxifen in murine hematopoietic progenitors transformed by Hoxa9-ER/Meis1 using RNAseq. In the presence of tamoxifen (4OHT), Hoxa9-ER localizes to the nucleus of cells allowing for transformation, while withdrawal of 4OHT (culture in EtOH) leads to loss of nuclear Hoxa9-ER. Loss of Hoxa9-ER leads to a decrease in cellular proliferation and differentiation along the myeloid lineage. Examination of gene expression by RNAseq in two conditions in biological replicates.

ORGANISM(S): Mus musculus

SUBMITTER: Jay Hess

PROVIDER: E-GEOD-58359 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

C/EBPα is an essential collaborator in Hoxa9/Meis1-mediated leukemogenesis.

Collins Cailin C Wang Jingya J Miao Hongzhi H Bronstein Joel J Nawer Humaira H Xu Tao T Figueroa Maria M Muntean Andrew G AG Hess Jay L JL

Proceedings of the National Academy of Sciences of the United States of America 20140623 27

Homeobox A9 (HOXA9) is a homeodomain-containing transcription factor that plays a key role in hematopoietic stem cell expansion and is commonly deregulated in human acute leukemias. A variety of upstream genetic alterations in acute myeloid leukemia (AML) lead to overexpression of HOXA9, almost always in association with overexpression of its cofactor meis homeobox 1 (MEIS1) . A wide range of data suggests that HOXA9 and MEIS1 play a synergistic causative role in AML, although the molecular mech ...[more]

PMID: 24958854

Similar Datasets

Regulation of gene expression through genome-wide co-binding of Hoxa9 and C/EBPα in transformed HSCs

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-06-11 | E-GEOD-58362 | biostudies-arrayexpress

Gene expression changes after loss of C/EBPα in transformed HSCs [CEBPA RNA-seq]

Project description:RNAseq characterization of gene expression changes 72 hours after genomic excision of Cebpa in murine hematopoietic progenitors from Cebpaf/f;CreER mice transformed by Hoxa9/Meis1. In the presence of tamoxifen (4OHT), Cre-ER localizes to the nucleus of cells allowing for excision of Cebpa and loss of C/EBPα protein levels. Loss of C/EBPα leads to a decrease in cellular proliferation. Examination of gene expression by RNAseq in two conditions in biological replicates.

2014-06-11 | E-GEOD-58360 | biostudies-arrayexpress

Gene expression changes after loss of Hoxa9 in transformed HSCs [HOXA9 RNA-seq]

Project description:Characterization of gene expression changes 72 hours after withdrawal of tamoxifen in murine hematopoietic progenitors transformed by Hoxa9-ER/Meis1 using RNAseq. In the presence of tamoxifen (4OHT), Hoxa9-ER localizes to the nucleus of cells allowing for transformation, while withdrawal of 4OHT (culture in EtOH) leads to loss of nuclear Hoxa9-ER. Loss of Hoxa9-ER leads to a decrease in cellular proliferation and differentiation along the myeloid lineage.

2014-06-11 | GSE58359 | GEO

Identification and Characterization of Hoxa9 Binding Sites in Hematopoietic Cells

Project description:The clustered homeobox proteins play crucial roles in development, hematopoiesis and leukemia yet the targets they regulate and their mechanisms of action are poorly understood. Here, we identified the binding sites for Hoxa9 and the Hox cofactor Meis1 on a genome-wide level and profiled their associated epigenetic modifications and transcriptional targets. Hoxa9 and the Hox cofactor Meis1 co-bind at hundreds of highly evolutionarily-conserved sites, most of which are distant from transcription start sites. These sites show high levels of histone H3K4 monomethylation and CBP/P300 binding characteristic of enhancers. Furthermore, a subset of these sites shows enhancer activity in transient transfection assays. Many Hoxa9 and Meis1 binding sites are also bound by PU.1 and other lineage-restricted transcription factors previously implicated in establishment of myeloid enhancers. Conditional Hoxa9 activation is associated with CBP/P300 recruitment, histone acetylation and transcriptional activation of a network of proto-oncogenes including Erg, Flt3, Lmo2, Myb and Sox4. Collectively this work suggests that Hoxa9 regulates transcription by interacting with enhancers of genes important for hematopoiesis and leukemia. To identify the genome-wide binding sites for Hoxa9 and the Hox cofactor Meis1

2011-12-04 | E-GEOD-33509 | biostudies-arrayexpress

RNAseq of murine primary bone marrow cells transformed by an inducible Hoxa9-ER: time-course

Project description:Relative overexpression of HOXA9 is a key feature of aggressive AML (acute myeloid leukemia). Hoxa9 responsive genes were identified by nascent RNA sequencing (4-thio-uridine labeled RNA - sequencing) in samples of primary hematopoietic precursor cells from mice transformed by an tamoxifen inducible version of Hoxa9 (Hoxa9-ER). Samples were generated in the presence of active Hoxa9 (0h) and in a time series after Hoxa9 was inactivated at 8h, 16h, 24h, 48h, and 72h.

2019-04-13 | E-MTAB-7107 | biostudies-arrayexpress

Genome-wide co-occupancy of Hoxa9 and C/EBPα in Hoxa9/Meis1 transformed HSCs [ChIP-seq]

Project description:Identification of the genome-wide binding sites of Hoxa9 and C/EBPα in a murine myeloblastic cell line transformed by Hoxa9/Meis1. Over 50% of Hoxa9 binding sites are co-bound by C/EBPα, providing mechanistic insight into the requirement of C/EBPα for Hoxa9-mediated leukemogenesis. Additionally, genome-wide occupancy of H3K4 monomethylation and H3K27 trimethylation provide additional information on the functionality of Hoxa9/C/EBPα cobound loci. Examination of two transcription factor binding sites and two histone modifications in a transformed cell line.

2014-06-11 | E-GEOD-58361 | biostudies-arrayexpress

Identification and characterization of Hoxa9 binding sites in hematopoietic cells

Project description:This SuperSeries is composed of the following subset Series: GSE21299: Expression data from murine cell line transduced with epitope tagged forms of Hoxa9 GSE33509: Identification and Characterization of Hoxa9 Binding Sites in Hematopoietic Cells GSE33517: Epigenetic profiling of histone H3K4me1, H3K4me3, H3K27me3, H3ac, H4ac, CBP and P300 using ChIP-chip Refer to individual Series

2011-12-05 | E-GEOD-33518 | biostudies-arrayexpress

Ikaros-induced gene expression chages upon Ikaros re-expression in the ILC87 Ikaros-deficient tumor cell line

Project description:We used microarrays to analyze gene expression changes in the Ikaros null ILC87 T cell tumor line after re-expression of Ikaros. ILC87 cells were transduced to stably express the 4-hydroxytamoxifen-inducible (4OHT) Ikaros1-ER fusion protein. ILC87-Ik1-ER cells were treated with mock (EtOH) or 4OHT for 1 day and the global gene expression changes were assessed by microarray analysis.

2015-11-03 | E-GEOD-72801 | biostudies-arrayexpress

Analysis of the senescent transcriptome upon expression of a ZFP36L1 phosphomutant

Project description:We expressed either a wt or a phosphomutant version of ZFP36L1 in IMR90 ER:RAS cells. 7 days upon RAS induction (when the cells reach a fully senescent phenotype) we collected the RNA. ZFP36L1 is a RNA binding protein that binds to AU-rich elements in the 3âUTR of mRNAs and triggers their degradation. Our previous experiments showed that the activity of ZFP36L1 was key in the regulation of the senescent phenotype.By performing RNAseq we have uncovered the effect of expressing a constitutively active mutant of ZFP36L1 within the senescent transcriptome. 4 samples examined: Non-senescent cells (EV - 4OHT), Senescent cells (EV + 4OHT), Senescent cells expressing ZFP36L1wt and Senescent cells expressing ZFP36L1mut

2015-07-07 | E-GEOD-61130 | biostudies-arrayexpress

Identification of genome wide Hoxa9 binding sites in primary murine and human AML cells

Project description:Relative overexpression of HOXA9 is a key feature of aggressive AML (acute myeloid leukemia). Here we determined genome wide binding sites of Hoxa9 in primary murine cells transformed by Hoxa9 and in a human AML cell line. In addition global H3K4 monomethylation and H3K27acetylation levels were determined in cells transformed by an inducible Hoxa9-ER construct in Hoxa9-active conditions and 72h after Hoxa9 was inactivated.

2019-04-13 | E-MTAB-7108 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

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