Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

46 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Role of de novo DNA methyltransferases in hematopoietic stem cells

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

ORGANISM(S): Mus musculus

SUBMITTER: deqiang sun

PROVIDER: E-GEOD-50793 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Dnmt3a and Dnmt3b have overlapping and distinct functions in hematopoietic stem cells.

Challen Grant A GA Sun Deqiang D Mayle Allison A Jeong Mira M Luo Min M Rodriguez Benjamin B Mallaney Cates C Celik Hamza H Yang Liubin L Xia Zheng Z Cullen Sean S Berg Jonathan J Zheng Yayun Y Darlington Gretchen J GJ Li Wei W Goodell Margaret A MA

Cell stem cell 20140814 3

Epigenetic regulation of hematopoietic stem cells (HSCs) ensures lifelong production of blood and bone marrow. Recently, we reported that loss of de novo DNA methyltransferase Dnmt3a results in HSC expansion and impaired differentiation. Here, we report conditional inactivation of Dnmt3b in HSCs either alone or combined with Dnmt3a deletion. Combined loss of Dnmt3a and Dnmt3b was synergistic, resulting in enhanced HSC self-renewal and a more severe block in differentiation than in Dnmt3a-null ce ...[more]

PMID: 25130491

Similar Datasets

Role of de novo DNA methyltransferases in hematopoietic stem cells (RNA-seq)

Project description:To investigate the global transcriptome expression in Dnmt3ab dKO HSCs, we performed high-throughput sequencing of Poly A+ RNA (RNA-Seq) from purified HSCs (SP-KSL-CD150+). With biological duplicates, more than 200 million reads in total for each genotype of HSC were obtained. Mouse hematopoietic stem cell mRNA profiles of Dnmt3ab Dko HSCs, generated by deep sequencing, in duplicate, using Illumina Hiseq 2000

2014-08-19 | E-GEOD-50775 | biostudies-arrayexpress

Role of de novo DNA methyltransferases in hematopoietic stem cells (WGBS)

Project description:To investigate the global DNA methylation changes in Dnmt3a-KO and Dnmt3ab-dKO HSCs compared to control HSCs, we performed whole genome bisulfite sequencing Mouse hematopoietic stem cell DNA methylation profiles of control, Dnmt3a-KO and Dnmt3ab-dKO HSCs were generated generated by deep sequencing, in duplicate, using Illumina Hiseq 2000

2014-08-19 | E-GEOD-50780 | biostudies-arrayexpress

Large conserved domains of low DNA methylation maintained by 5-hydroxymethycytosine and Dnmt3a

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

2013-11-16 | E-GEOD-49191 | biostudies-arrayexpress

Large conserved domains of low DNA methylation maintained by 5-hydroxymethycytosine and Dnmt3a [RNA-Seq]

Project description:To investigate the global transcriptome expression in Wild Type mouse hematopoietic stem cells, we performed high-throughput sequencing of Poly A+ RNA (RNA-Seq) from purified HSCs (SP-KSL-CD150+). With biological duplicates, more than 200 million reads in total were obtained. Mouse hematopoietic stem cell mRNA profiles of wild type mice were generated by deep sequencing, in duplicate, using Illumina Hiseq 2000.

2013-11-16 | E-GEOD-49715 | biostudies-arrayexpress

Large conserved domains of low DNA methylation maintained by 5-hydroxymethycytosine and Dnmt3a [Bisulfite-Seq]

Project description:Gains and losses in DNA methylation are prominent genomic features of all mammalian cell types. To gain insight into mechanisms that could promote shifts in DNA methylation patterns and thus contribute to cell fate, including malignant transformation, we performed genome-wide mapping of 5-methylcytosine in purified wild type and Dnmt3a conditional knockout hematopoietic stem cells (HSCs). We generated 1,121 million (control HSCs), and 1,213 million (Dnmt3a knockout HSCs) raw reads; about 81.4% and 88.7%, respectively, were successfully aligned to either strand of the reference genome (mm9), obtainig an average CG coverage of 39.5-fold (wild type) and 47.0-fold (Dnmt3a kockout). Whole genome bisulfite sequencing of secondarily-transplanted wild-type and Dnmt3a conditional knockout hematopoietic stem cells using Illumina HiSeq 2000

2013-11-17 | E-GEOD-49714 | biostudies-arrayexpress

Large conserved domains of low DNA methylation maintained by 5-hydroxymethycytosine and Dnmt3a (CMS bisulfite-seq)

Project description:Gains and losses in DNA methylation are prominent genomic features of all mammalian cell types. To gain insight into mechanisms that could promote shifts in DNA 5-hydroxymethylation (5hmc) patterns and thus contribute to cell fate, including malignant transformation, we performed genome-wide mapping of 5hmc in purified wild type and Dnmt3a conditional knockout hematopoietic stem cells (HSCs) using cytosine-5-methylenesulphonate sequencing (CMS-seq). Comparing anti-CMS pulldown to input control, we identified 107,549 and 175,682 peaks of 5hmc enrichment in control and Dnmt3a knockout HSCs, respectively. Whole genome CMS-enriched bisulfite sequencing of secondarily-transplanted wild-type and Dnmt3a conditional knockout hematopoietic stem cells using Illumina HiSeq 2000

2014-01-22 | E-GEOD-53742 | biostudies-arrayexpress

Epigenetic and genetic changes during mouse hematopoietic stem cell aging [RNA-Seq]

Project description:To investigate the global transcriptome changes in mouse hematopoietic stem cell aging, we performed high-throughput sequencing of Poly A+ RNA (RNA-Seq) from purified 4 month, and 24 month-old HSCs (SP-KSL-CD150+). With biological duplicates, more than 200 million reads in total for each age of HSC were obtained. Comparison of the young and old HSC transcriptomes revealed that 1,337 genes that were up-regulated, and 1,297 genes were down-regulated with HSC aging. The most highly represented upstream regulator was growth factor TGFB1, accounting for ~ 19% of differential gene expression in young versus old HSC (p-value = 1.96E-33). Gene ontology (GO) analyses indicated that up-regulated genes in 24mo HSCs are highly enriched in Regulation of Cell Adhesion, Regulation of Cell Proliferation and Ribosome, while down-regulated genes are enriched in DNA Base Excision Repair, DNA replication and Cell Cycle. RNA-seq also allowed us to examine alternative isoforms with aging including alternative splicing, promoter usage and pre-mRNA abundance. Mouse hematopoietic stem cell mRNA profiles of 4 month and 24 month old WT mice were generated generated by deep sequencing, in duplicate, using Illumina Hiseq 2000

2014-04-30 | E-GEOD-47817 | biostudies-arrayexpress

Epigenetic and genetic changes during mouse hematopoietic stem cell aging [Bisulfite-Seq]

Project description:To investigate the global DNA methylation changes in mouse hematopoietic stem cell aging, we performed whole-genome bisulfite sequencing (WGBS). We generated 1,494 million (4mo HSCs), and 1,493 million (24mo HSCs) raw reads; about 82.6% and 84.3%, respectively, were successfully aligned to either strand of the reference genome (mm9). Of all the cytosines present in the reference genome sequence, about 93% of Cs and 99% of CGs were covered in both datasets, with an average coverage of 46-fold (4mo) and 50-fold (24mo). In contrast to the age-associated hypomethylation observed in studies of somatic cells, mentioned above, HSCs showed an increase of methylation with age. The average methylation level over all 16 million covered CpGs increased from 83.5% in young (4mo) HSC to 84.6% in old (24mo) HSC. We observed a total of 448,166 differentially methylated CpGs (DMCs), defined as those having a 20% or more difference in methylation ratio, of which 38.5% (172,609) were hypomethylated (hypo-DMCs) and 61.5% (275,557) were hypermethylated (hyper-DMCs) with aging. For different genomic features, a slightly greater DNA methylation ratio increase was observed for the gene body, LINEs and SINEs, while CGIs and promoters showed balanced increases and decreases. Localization analysis of DMCs indicates that DNA encoding for ribosome RNA (rDNA) is primarily a hotspot for hypo-DMCs, while promoters without CpG islands, CpG island shores and LINE repetitive elements exhibit both hypo- and hyper-DMCs. Mouse hematopoietic stem cell DNA methylation profiles of 4 month and 24 month old WT mice were generated generated by deep sequencing, in duplicate, using Illumina Hiseq 2000.

2014-04-30 | E-GEOD-47815 | biostudies-arrayexpress

Epigenetic and genetic changes during mouse hematopoietic stem cell aging

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

2014-04-30 | E-GEOD-47819 | biostudies-arrayexpress

Atxn1L is a novel regulator of Hematopoietic Stem Cell Quiescence

Project description:We compared gene expression differences in Atxn1L knockout vs wildtype HSCs KO allele described in Pub Med ID: 22014525 HSCs were purified as Lineage-negative, Sca-1+ c-Kit+ (LSK), CD150+ and Side population from both Atxn1L-null and WT mice on C57Bl/6 background

2013-02-28 | E-GEOD-44285 | biostudies-arrayexpress

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