Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

39 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Heme-Bound Iron Activates Placenta Growth Factor via Erythroid KrM-CM-

ABSTRACT: We have tested the effect of iron on the gene expression profile in human leukemia cells with properties of erythroid differentiation. 12 Total samples were analyzed. We compared the gene expression profiles of cells treated with iron mesoporphyrin to mesoporphyrin alone. DMSO vehicle was also tested as a control.

ORGANISM(S): Homo sapiens

SUBMITTER: Yanqin Yang

PROVIDER: E-GEOD-52087 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Heme-bound iron activates placenta growth factor in erythroid cells via erythroid Krüppel-like factor.

Wang Xunde X Mendelsohn Laurel L Rogers Heather H Leitman Susan S Raghavachari Nalini N Yang Yanqin Y Yau Yu Ying YY Tallack Michael M Perkins Andrew A Taylor James G JG Noguchi Constance Tom CT Kato Gregory J GJ

Blood 20140610 6

In adults with sickle cell disease (SCD), markers of iron burden are associated with excessive production of the angiogenic protein placenta growth factor (PlGF) and high estimated pulmonary artery pressure. Enforced PlGF expression in mice stimulates production of the potent vasoconstrictor endothelin-1, producing pulmonary hypertension. We now demonstrate heme-bound iron (hemin) induces PlGF mRNA >200-fold in a dose- and time-dependent fashion. In murine and human erythroid cells, expression o ...[more]

PMID: 24916507

Similar Datasets

Heme-Bound Iron Activates Placenta Growth Factor via Erythroid Krüppel‐like Factor in Erythroid Cells

Project description:We have tested the effect of iron on the gene expression profile in human leukemia cells with properties of erythroid differentiation.

2014-09-08 | GSE52087 | GEO

Expression data from A549 cells after treatment with flagellin and transforming growth factor beta 1

Project description:We have examined the changes in gene expression aftert reatment of A549 cells, a cultured alveolar epithelial cells, with flagellin and transforming growth factor beta 1. In this dataset, we include the expression data obtained from A549 cells after treatment with purified flagellin or transforming growth factor beta 1 receptor. The analysis indicated that flagellin induced a change in gene expression that was similar to the changes induced by transforming growth factor 1. A549 cells were treated with flagellin or transforming growth factor 1 for 24 h. Total RNA was extracted and reverse transcribed to cDNA. Synthesized cDNA was fragmented and labeled with biotin. The biotinylated cDNA was hybridized to to an Affymetrix GeneChip Array, and probe signal intensities were captured.

2012-10-31 | E-GEOD-38309 | biostudies-arrayexpress

Expression data from 10 months old sciatic nerves of Sterol regulatory element binding factor 1c (SREBF-1c) KO mice and relative littermates

Project description:SREBF-1c is a transcription factor regulating fatty acid biosynthesis. We have charaterized the impact of the abcence of SREBF-1c on the development of peripheral neuropathy In this dataset we included expression data from dissected sciatic nerve from 10 months old SREBF-1c KO mice and relative littermates. 6 total samples were analyzed (3 wild type and 3 SREBF-1c KO). Data handling was mainly done using TAC and Partek Genomic Suite software. The Robust Multichip Average (RMA) method was employed to calculate probe set intensity. RMA is a robust multi-chip average expression method that estimates the probe-level data from a set of chips: the perfect-match (PM) values are background-corrected, normalized and finally summarized resulting in a set of expression measures. The identification of differentially expressed genes was addressed using Fold Change (FC) and ANOVA. For each experimental condition the probesets whose fold change are higher or equal than 1.5 with an ANOVA unadjusted p-value lower than 0,05 are selected as significantly modulated.

2015-02-10 | E-GEOD-65754 | biostudies-arrayexpress

EGFRvIII vs. Control - xenograft glioblastomas

Project description:Glioblastoma cell lines were xenografted onto mice and resulting tumors were profiled by microarray. Xenograft recipient mice were NOD/SCID/gamma (NSG) male mice 3 months old. In this set, 6 total samples were analyzed. There were three biological replicates for each of two conditions: EGFRvIII containing tumors and control. Arrays were analyzed for gene expression using GeneBase and for alternative splicing using MADS+ software.

2013-07-01 | E-GEOD-46028 | biostudies-arrayexpress

shRNA mediated knockdown of TRA2B and SRSF3 in HEK293 cell line

Project description:We have independently knocked down TRA2B and SRSF3 in HEK293 cells to identify the sum of alternative splicing changes that results from depletion of each factor. Each was compared to a control transfection of the hairpin vector alone. In this set, 9 total samples were analyzed. There were three biological replicates for each of three conditions: knockdown control, TRA2B knockdown and SRSF3 knockdown. Arrays were analyzed for gene expression using GeneBase and for alternative splicing using MADS+ and OmniViewer software.

2012-04-30 | E-GEOD-36069 | biostudies-arrayexpress

Digitoxin treatment versus control in HEK293 cells

Project description:We treated HEK293 cells with the cardiotonic steroid digitoxin to identify alternative splicing changes as compared to DMSO treatment alone. In this set, 6 total samples were analyzed. There were three biological replicates for each of two conditions: DMSO treatment and Digitoxin treatment. Arrays were analyzed for gene expression using GeneBase and for alternative splicing using MADS+ and OmniViewer software.

2012-04-30 | E-GEOD-36058 | biostudies-arrayexpress

Expression data from E11.5 mouse embryonic forelimbs - various mutant conditions or dissected limb domains

Project description:Sonic hedgehog (Shh) signals via Gli transcription factors to direct digit number and identity in the vertebrate limb. We have characterized the Gli-dependent cis-regulatory network through a combination of whole genome ChIP-on-chip and transcriptional profiling of the developing mouse limb. In this dataset, we include the expression data obtained from dissected mouse forelimbs using a variety of gain- and loss-of-function hedgehog pathway mutants, as well as limbs dissected into responsive (posterior 2/3ds) and non-responsive (anterior 1/3d) Hh tissues. These data are used to obtain 753 genes that are differentially expressed in response to Shh signaling. Keywords: Comparison of genetic samples 28 Total samples were analyzed. We generated the following pairwise comparisons using PowerExpress: Shh<WT; SmoM2>WT; Gli3<WT; Gli3>WT; Ant<Post; Ant>Post. Genes with an FDRM-bM-^IM-$10% and a fold-change M-bM-^IM-%2 were selected. We did not generate pairwise comparisons for a certain combinations with SmoGli3 and Gli3 mutants because data from these arrays contained significant variability. To identify additional genes that were Shh-responsive, we performed the following multiple sample comparisons using an FDRM-bM-^IM-$10% and a posterior probability cutoff of M-bM-^IM-$25%: 1.) Ant<Post and Shh<WT<SmoM2, 2.) Ant<Post and Shh<WT<SmoM2 and Gli3>SmoGli3, 3.) Ant<Post and Shh<WT<SmoM2 and WT>SmoGli3

2008-09-14 | E-GEOD-11063 | biostudies-arrayexpress

Regulation of exon definition and apoptosis by the Ewing's Sarcoma Protein

Project description:The Ewing's Sarcoma Protein EWS belongs to the TET family (FUS/TLS, EWS, TAF15) of RNA and DNA binding proteins, implicated in DNA transcription, pre-mRNA splicing and maintenance of genome integrity. To identify in vivo RNA targets of EWS we performed a combinatorial approach of CLIP-Seq In this dataset, we include the expression data obtained from three biological replicates of HeLa cells transfected with either scrambled or siEWS oligonucleotides. These data allowed us to identify 805 genes affected at the expression level by EWS knockdown, of which 395 upregulated and 410 downregulated. Moreover, HJAY identified 206 differentially regulated alternative splicing events in 114 genes. Three biological replicates were labeled and hybridized onto Affymetrix HJAY

2014-01-01 | E-GEOD-47790 | biostudies-arrayexpress

Expression data from CD4+ NaM-CM-/ve T cells under Treg-inducing condition in the presence or absence of butyrate

Project description:Commensal bacteria shapes gut immune system. Colonization bacteria increase the frequency of regulatory T cells, however, the molecular mechanisms has not yet been unknown. To reveal the mechanism, we isolated NaM-CM-/ve CD4+ T cells from spleen of C57BL/6 mice and cultured the cells under Treg-inducing condition culture in the presence or absence of butyrate, a metabolite produced by commensal bacteria. NaM-CM-/ve T cells were isolated from spleen and were cultured in the presence of IL-2, TGF-beta and in the presence or absene of Butyrate. RNA was extracted at Day 2

2013-11-20 | E-GEOD-49619 | biostudies-arrayexpress

Heme-bound iron activates placenta growth factor in erythroid cells via erythroid Kruppel-like factor.

Project description:In adults with sickle cell disease (SCD), markers of iron burden are associated with excessive production of the angiogenic protein placenta growth factor (PlGF) and high estimated pulmonary artery pressure. Enforced PlGF expression in mice stimulates production of the potent vasoconstrictor endothelin-1, producing pulmonary hypertension. We now demonstrate heme-bound iron (hemin) induces PlGF mRNA >200-fold in a dose- and time-dependent fashion. In murine and human erythroid cells, expression of erythroid Krüppel-like factor (EKLF) precedes PlGF, and its enforced expression in human erythroid progenitor cells induces PlGF mRNA. Hemin-induced expression of PlGF is abolished in EKLF-deficient murine erythroid cells but rescued by conditional expression of EKLF. Chromatin immunoprecipitation reveals that EKLF binds to the PlGF promoter region. SCD patients show higher level expression of both EKLF and PlGF mRNA in circulating blood cells, and markers of iron overload are associated with high PlGF and early mortality. Finally, PlGF association with iron burden generalizes to other human diseases of iron overload. Our results demonstrate a specific mechanistic pathway induced by excess iron that is linked in humans with SCD and in mice to markers of vasculopathy and pulmonary hypertension. These trials were registered at www.clinicaltrials.gov as #NCT00007150, #NCT00023296, #NCT00081523, and #NCT00352430.

| S-EPMC4126333 | biostudies-literature

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