Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Total RNA deep sequencing (ribosomal depleted) of human umbilical vein endothelial cells exposed to hypoxia (0.2%) for 12h and 24h or kept under normoxic conditions.

ABSTRACT: Impaired or excessive growth of endothelial cells contributes to several diseases. However, the functional involvement of regulatory long non-coding RNAs in these processes is not well defined. Here we show that the long non-coding antisense transcript of GATA6 (GATA6-AS) interacts with the epigenetic regulator LOXL2 to regulate endothelial gene expression via changes in histone methylation. Using RNA deep sequencing, we find that GATA6-AS is up-regulated in endothelial cells during hypoxia. Silencing of GATA6-AS diminishes TGF-?2-induced endothelial-mesenchymal transition in vitro and promotes formation of blood vessels in mice. We identify LOXL2, known to remove activating H3K4me3 chromatin marks, as a GATA6-AS-associated protein, and reveal a set of angiogenesis-related genes that are inversely regulated by LOXL2 and GATA6-AS silencing. As GATA6-AS silencing reduces H3K4me3 methylation of two of these genes, periostin and cyclooxygenase-2, we conclude that GATA6-AS acts as negative regulator of nuclear LOXL2 function.

ORGANISM(S): Homo sapiens

PROVIDER: GSE107029 | GEO | 2018/01/24

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Shared Molecules

Only show the datasets with similarity scores above: 0.5

Threshold

0.5

Similar Datasets

Endothelial gene expression analysis after silencing LOXL2 using siRNAs

Project description:Impaired or excessive growth of endothelial cells contributes to several diseases. However, the functional involvement of regulatory long non-coding RNAs in these processes is not well defined. Here we show that the long non-coding antisense transcript of GATA6 (GATA6-AS) interacts with the epigenetic regulator LOXL2 to regulates endothelial gene expression via changes in histone methylation. Using RNA deep sequencing, we find that GATA6-AS is up-regulated in endothelial cells during hypoxia. Silencing of GATA6-AS diminishes TGF-β2-induced endothelial-mesenchymal transition in vitro and promotes formation of blood vessels in mice. We identify LOXL2, known to remove activating H3K4me3 chromatin marks, as a GATA6-AS-associated protein, and reveal a set of angiogenesis-related genes that are inversely regulated by LOXL2 and GATA6-AS silencing. As GATA6-AS silencing reduces H3K4me3 methylation of two of these genes, periostin and cyclooxygenase-2, we conclude that GATA6-AS acts as negative regulator of nuclear LOXL2 function. In this dataset we include the global gene expression analysis using exon arrays after silencing LOXL2.

2018-01-24 | GSE107032 | GEO

Endothelial gene expression analysis after silencing the lncRNA GATA6-AS using LNA GapmeRs.

2018-01-24 | GSE107031 | GEO

Endothelial gene expression analysis after silencing LOXL2 using siRNAs

Project description:Endothelial gene expression analysis after silencing LOXL2 using siRNAs

| PRJNA418857 | ENA

Total RNA deep sequencing (ribosomal depleted) of human umbilical vein endothelial cells exposed to hypoxia (0.2%) for 12h and 24h or kept under normoxic conditions.

Project description:Total RNA deep sequencing (ribosomal depleted) of human umbilical vein endothelial cells exposed to hypoxia (0.2%) for 12h and 24h or kept under normoxic conditions.

| PRJNA418883 | ENA

Gene expression analysis following depletion of LOXL2 in esophgeal cancer cells

Project description:Esophageal cancer is the sixth most common cause of cancer death globally, of which esophageal squamous cell carcinoma (ESCC) is the most common histological subtype. High level expression of LOXL2 has been shown to be associated with tumor metastasis and poor clinical outcome in ESCC. To determine whether there are genes whose expression in ESCC cells is regulated by LOXL2, next generation RNA sequencing analysis was used to compare the RNA expression profile of KYSE510 cells before and after silencing LOXL2 expression.

2020-08-01 | GSE135510 | GEO

Genome-wide map of GATA6 DNA binding in human CRC cells

Project description:We describe the genome-wide DNA-binding of GATA6 in a human CRC cell line (LS174T). GATA6 is found to bind the promoter of genes involved in the maintenance of intestinal stem cells, including genes of the Wnt and TGFbeta/BMP pathways. With this we describe a novel GATA6-dependent mechanism of stem cell maintenance in colorectal tumors. Examination of GATA6 binding and H3K4me1, H3K4me3 and H3K27ac levels in a human CRC cell line by Chromatin immunoprecipitation followed by deep sequencing.

2014-05-20 | E-GEOD-49320 | biostudies-arrayexpress

Endothelial gene expression analysis after silencing the lncRNA GATA6-AS using LNA GapmeRs.

Project description:Endothelial gene expression analysis after silencing the lncRNA GATA6-AS using LNA GapmeRs.

| PRJNA418858 | ENA

A novel Lysyl oxidase like 2 alternative splicing LOXL2 â³e13 in esophageal squamous carcinoma cells

Project description:A novel alternative splicing isoform of LOXL2 â³e13 was expressed ubiquitously in all cell lines and ESCC tissues. In contrast to the impaired deamination enzymatic activity compared with full length LOXL2, LOXL2 â³e13 showed an enhanced ability to promote cell mobility and invasiveness in ESCC cells than full length LOXL2 through a different mechanism. We used cDNA microarrays to identify genes that were differentially expressed upon LOXL2 â³ e13 overexpressed. For this purpose, we selected LOXL2 â³ e13, WT and empty vector control transfeced ESCC KYSE150 cell lines. Total RNA was extracted,compare the gene expression patterns between LOXL2 â³e13, LOXL2 WT and empty vector control transfected cells through the Genechip Primeview Human Gene Expression Array.

2016-07-03 | E-GEOD-53676 | biostudies-arrayexpress

Arabidopsis TRB proteins function in H3K4me3 demethylation by recruiting JMJ14

Project description:Arabidopsis telomeric repeat binding factors (TRBs) can bind telomeric DNA sequences to protect telomeres from degradation. TRBs can also recruit Polycomb Repressive Complex 2 (PRC2) to deposit tri-methylation of H3 lysine 27 (H3K27me3) over certain target loci. Here, we demonstrate that TRBs also associate and colocalize with JUMONJI14 (JMJ14) and trigger H3K4me3 demethylation at some loci. The trb1/2/3 triple mutant and the jmj14-1 mutant show an increased level of H3K4me3 over TRB and JMJ14 binding sites, resulting in up-regulation of their target genes. Furthermore, tethering TRBs to the promoter region of genes with an artificial zinc finger (TRB-ZF) successfully triggers target gene silencing, as well as H3K27me3 deposition, and H3K4me3 removal. Interestingly, JMJ14 is predominantly recruited to ZF off-target sites with low levels of H3K4me3, which is accompanied with TRB-ZFs triggered H3K4me3 removal at these loci. These results suggest that TRB proteins coordinate PRC2 and JMJ14 activities to repress target genes via H3K27me3 deposition and H3K4me3 removal.

2023-02-22 | MSV000091349 | MassIVE

Gene expression from NMuMG cells overexpressing major satellite treated with TGFbeta

Project description:Although heterochromatin is enriched with repressive traits, it is also actively transcribed, giving rise to large amounts of non-coding RNAs. Although these RNAs are responsible for the formation and maintenance of heterochromatin, little is known about how their transcription is regulated. Here we show that the Snail1 transcription factor represses pericentromeric transcription, acting through the H3K4 deaminase LOXL2. Since Snail1 plays a key role in the epithelial to mesenchymal transition (EMT), we analyzed the regulation of mouse heterochromatin transcription in this process. At the onset of EMT, one of the major structural heterochromatin proteins, HP1a, is transiently released from heterochromatin foci in a Snail1/LOXL2–dependent manner during EMT, concomitantly with a down-regulation of major satellite transcription. Global transcriptome analysis indicated that ectopic expression of heterochromatin transcripts affects the transcription profile of EMT-related genes. Additionally, preventing the down-regulation of major satellite transcripts compromised the migratory and invasive behavior of mesenchymal cells. We propose that Snail1 regulates heterochromatin transcription through the histone-modifying enzyme, LOXL2, thus creating the favorable transcriptional state necessary for completing EMT. Keywords: Expression Profiling by array We analyzed 2 arrays from each condition: Control and Major treated 8 hours with TGFbeta

2014-01-01 | E-GEOD-49073 | 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