Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Constitutive expression of EGR4 elicits cell cycle shortening in primary mesenchymal cells.

ABSTRACT: Transcription factors of EGR family mediate cellular responses to MAPK signaling. Albeit working in parallel to proliferation associated AP-1 factors their involvement in cell cycle regulation has not been demonstrated so far. This work reveals pronounced cell cycle shortening following constitutive EGR4 expression in primary mesenchymal cells. Corresponding changes in gene expression provide insight into the molecular mechanism of the effect. Comparison of expression profiles of chicken primary skin fibroblasts infected with retroviral construct SFCVneo-EGR4 versus chicken primary skin fibroblasts infected with empty retroviral vector SFCVneo. Three biological replicates were analyzed for each group.

ORGANISM(S): Gallus gallus

SUBMITTER: Vladimir Cermak

PROVIDER: E-GEOD-15143 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

A profibrotic gene expression program induced by Egr-1 in skin fibroblasts

Project description:Systemic sclerosis (SSc) is characterized by vascular damage, autoimmunity and fibrosis and is associated with highly variable clinical presentation and disease course. Aberrant transforming growth factor-ß (TGF-ß) signaling via the early immediate transcription factor Egr-1 is implicated in the pathogenesis of SSc. To shed light on the role of Egr-1 in fibrosis, regulation of gene expression in human skin fibroblasts overexpressing Egr-1 was examined by genome-wide expression analysis. Over 600 genes were found to be regulated by Egr-1. The Egr-1-responsive gene signature is largely comprised of genes involved in cell proliferation, TGF-ß signaling, wound healing, extracellular matrix synthesis and vascular development. Expression of the Egr-1 responsive genes was evaluated in a microarray dataset comprising skin biopsies from 17 patients with scleroderma and six healthy controls (GEO GSE9285; PMID 18648520). The “Egr-1 responsive gene signature” was enriched in the ‘diffuse-proliferation’ subset of skin biopsies in the patients with diffuse cutaneous SSc (dcSSc), but was not associated with other forms of scleroderma, or with healthy controls. Skin biopsies from patients with scleroderma can provide more insights into the relevant pathological processes in the subset of disease and could be developed into a diagnostic tool for identifying a subset of diffuse scleroderma patients who may be responsive to Egr-1 therapy. Cultures of primary fibroblasts from neonatal foreskin treated by Egr1 and Tgfb1 were measured at 24 and 48 hours. Control samples without any treatment were also measured at the same time points. Two biological replicates per condition/time point were measured using the Illumina HumanRef-8 V2 Expression BeadChip.

2011-10-25 | E-GEOD-27165 | biostudies-arrayexpress

A profibrotic gene expression program induced by Egr-1 in skin fibroblasts

2011-10-26 | GSE27165 | GEO

Proteomic Analysis of the Interaction between Chicken Synovial Fibroblasts and Mycoplasma synoviae

Project description:Chicken synovial fibroblasts was infected without or with Mycoplasma synoviae for 48h

2019-11-29 | PXD016513 |

Gene profiling of v-Src transformed primary chicken cells

Project description:Cell transformation by the Src tyrosine kinase is characterized by extensive changes in gene expression. To describe these changes, investigators have relied extensively on the study of immortalized rodent cell lines or heterogeneous tumor samples that limit the identification of differentially expressed genes or may not represent the full spectrum of biological processes regulated during transformation. In this study, we took advantage of transformation-deficient and temperature sensitive mutants of the Rous sarcoma virus to characterize the patterns of gene expression in two types of primary cells, namely chicken embryo fibroblasts (CEF) and chicken neuro-retinal (CNR) cells. Keywords: viral transformation of primary cells, transformation, transformation deficient mutant, temperature sensitive mutant, v-Src Chicken embryo fibroblasts (CEF) were infected with the wild-type strain Schmidt-Ruppin A RSV or non-transforming strain NY315 RSV or the non-transforming control virus RCASBP(A) to assess genes involved in v-Src-dependent transformation of CEF. Chicken embryo fibroblasts (CEF) were infected with the temperature sensitve strain NY72-4 RSV and cultured either at non-permissive temperature (41.5M-KM-^ZC) or permissive temperature (37M-KM-^ZC) to assess genes involved in v-Src-dependent transformation of CEF. Chicken neuroretina cells (CNR) were infected with the temperature sensitve strain NY72-4 RSV and cultured either at non-permissive temperature (41.5M-KM-^ZC) or permissive temperature (37M-KM-^ZC) to assess genes involved in v-Src-dependent transformation of CNR and compared to CEF.

2010-02-21 | E-GEOD-14489 | biostudies-arrayexpress

Homo sapiens

Project description:A profibrotic gene expression program induced by Egr-1 in skin fibroblasts

| PRJNA137379 | ENA

Transcription profiling of mouse in vitro reprogrammed fibroblasts carrying retroviral transgenes for Oct4, Sox2, Klf4, and c-Myc to investigate developmental potential

Project description:Comparison of in vitro reprogrammed fibroblasts carrying retroviral transgenes for Oct4, Sox2, Klf4, and c-Myc with non-infected fibroblasts and wt ES cells.

2007-06-06 | E-MEXP-1037 | biostudies-arrayexpress

Transcription profiling of mouse Egr-1 knock-outs during development (p30 and p42)

Project description:In chicks, the avian homologue of the early growth response protein-1 (ZENK) has been shown to be increased in a special cell type of the retina, the glucagonergic amacrine cells, under conditions that lead to a reduction in eye growth (myopic defocus, recovery of myopia) and decreased under conditions that enhance ocular growth (hyperopic defocus, form-deprivation). The investigation of Egr-1 knock-out mice showed that homozygous knock-out mice with no functional Egr-1 protein developed relative axial myopia at the age of 42 and 56 days, compared to heterozygous- and wildtype Egr-1 knock-out mice. To clarify the role of Egr-1 in the retinal regulation of eye growth, and to get an idea about the biochemical pathways underlying this mechanism, we studied the role of Egr-1 in more detail using Affymetrix microarrays. Experiment Overall Design: Retinal samples of young homozygous Egr-1 knock-out and wildtype mice at the age of 30 days (hm30 and wt30; no difference in axial eye length yet) and 42 days (hm42 and wt42; already a difference in axial eye length of 59 Âµm) were taken to compare the mRNA expression changes over time between these two genotypes and within the same genotype between the two age groups.

2009-12-14 | E-GEOD-16974 | biostudies-arrayexpress

Mus musculus

Project description:Expression data from retroviral vector-infected immortalized mouse embryonic fibroblasts (MEFs)

| PRJNA123117 | ENA

Identification of early and late responder genes during cell reprogramming of mouse fibroblasts into induced pluripotent stem cells

Project description:Our recent approach to induction of pluripotent stem cells from fibroblasts using protein extract from mouse ESCs could overcome the potential tumorigenicity risks associated with random retroviral integration. Here we examine the epigenetic modifications and transcriptome in two kinds of iPSCs and a partially reprogrammed iPSC (iPSCp) generated from adult cardiac and skin fibroblasts independently to assess any perturbations of transcription program during reprogramming.

2017-03-07 | GSE58965 | GEO

Histone H3.3 and its proteolytically processed form drive a cellular senescence program

Project description:In this study, we have uncovered novel proteolytic processing of the histone H3 tail in senescence models in primary fibroblasts and melanocytes. Cleavage of H3 tail occurs at two distinct residues and is mediated by Cathepsin L. We show that variant H3.3 is preferentially cleaved, and that cleaved histones are associated with chromatin and incorporated into nucleosomes. We also found that the histone chaperone ASF1a is required for chromatin incorporation of the cleaved histone species. Further, we show that overexpression of cleaved H3.3 induces a senescence program in fibroblasts in the absensence of oncogenic signaling. For the RNA-seq studies, growing IMR90 fibroblasts were compared to cells induced to senesce via oncogene activation or cleaved H3.3 overexpression. Growing controls consist of IMR90 cells infected with empty retroviral construct pBabe and grown under normal conditions for 13 days prior to RNA isolation. For oncogene-induced senescence samples, IMR90s carrying a tamoxifen-inducible H-RasV12 retroviral construct were induced to senesce by addition of 10nM tamoxifen to the media for 8 days. Finally, IMR90s were infected with a retroviral construct expressing the cleaved form of H3.3 with a C-terminal Flag tag. RNA samples form this group were isolated at days 3 (early) and 13 (late) post-infection. In all cases, total RNA samples were isolated using RNeasy kit (Qiagen) and prepared at the Icahn School of Medicine at Mount Sinai Genomics Core Facility for poly A library construction and sequencing on IlluminaHiSeq 2500.

2014-10-01 | E-GEOD-55949 | 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