Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

40 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Expression data from human fibroblasts 6 and 12 hours after 8-oxoguanine treatment

ABSTRACT: 8-oxoguanine is excised from DNA by 8-oxoguanine DNA glycosylase-1 during DNA base excision repair. We used microarrays to gain insight into the potential biological function of the excised, free 8-oxoguanine base. MRC5, human diploid fibroblasts were exposed to 8-oxoguanine and changes in gene expression compared to mock control were analyzed 6 hours after exposure. MRC5, human diploid fibroblasts were exposed to 8-oxoguanine and changes in gene expression compared to mock control were analyzed 12 hours after exposure.

ORGANISM(S): Homo sapiens

SUBMITTER: Istvan Boldogh

PROVIDER: E-GEOD-26813 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Activation of ras signaling pathway by 8-oxoguanine DNA glycosylase bound to its excision product, 8-oxoguanine.

Boldogh Istvan I Hajas Gyorgy G Aguilera-Aguirre Leopoldo L Hegde Muralidhar L ML Radak Zsolt Z Bacsi Attila A Sur Sanjiv S Hazra Tapas K TK Mitra Sankar S

The Journal of biological chemistry 20120508 25

8-Oxo-7,8-dihydroguanine (8-oxoG), arguably the most abundant base lesion induced in mammalian genomes by reactive oxygen species, is repaired via the base excision repair pathway that is initiated with the excision of 8-oxoG by OGG1. Here we show that OGG1 binds the 8-oxoG base with high affinity and that the complex then interacts with canonical Ras family GTPases to catalyze replacement of GDP with GTP, thus serving as a guanine nuclear exchange factor. OGG1-mediated activation of Ras leads t ...[more]

PMID: 22568941

Similar Datasets

Expression data from human fibroblasts 6 and 12 hours after 8-oxoguanine treatment

Project description:8-oxoguanine is excised from DNA by 8-oxoguanine DNA glycosylase-1 during DNA base excision repair. We used microarrays to gain insight into the potential biological function of the excised, free 8-oxoguanine base.

2011-01-27 | GSE26813 | GEO

Genomic anchors across the MHC of MRC5 cells upon treatment with IFN-gamma: Loop associated DNA vs Matrix associated DNA

Project description:Identification of genomic anchors across the MHC in untreated MRC5 fibroblasts, and fibroblasts treated with IFN-gamma, using high resolution microarrays. Identification of genomic anchors using MRC5 fibroblasts, and fibroblasts treated with IFN-gamma: Loop associated DNA vs Matrix associated DNA, 2 biological replicates

2012-02-16 | E-GEOD-35845 | biostudies-arrayexpress

Transcription profiling of human xenografted nasopharyngeal carcinoma tumor cell lines and an untransformed diploid fibroblast cell line

Project description:The aim of this experiment was to investigate the gene expression profile of two xenografted nasopharyngeal carcinoma tumors - C15 and C17 which are international reference tools for biological investigations of this type of disease. C15 and C17 transcriptome was profiled by comparison with human untransformed diploid fibroblasts, MRC5. These fibroblasts are very sensitive to contact inhibition and were collected after 3 days of confluence, therefore in a quiescent state. We acknowledge that malignant nasopharyngeal carcinoma cells and MRC5 cells do not belong to the same lineage (epithelial cells versus fibroblasts). However this combination was expected to highlight genes involved in proliferation of NPC cells. Competitive hybridisation of cDNA for each pair C15 and MRC5, C17 and MRC5 was performed on Agilent microarrays containing 22 000 60mer oligonucleotides related to 16 000 human transcripts. The analysis was focused mainly on genes overexpressed in both C15 and C17 by comparison with MRC5

2007-12-01 | E-TABM-382 | biostudies-arrayexpress

Effect of mitochondria deficiency on senescence-associated gene expression

Project description:We used parkin âoverexpressing MRC5 fibroblasts to investigate the role of mitochondria deficiency on senescence-associated gene expression. RNA-seq analysis on proliferating and senescent Parkin-expressing MRC5 fibroblasts treated with CCCP (treated) or DMSO (Untreated).

2016-01-12 | E-GEOD-76125 | biostudies-arrayexpress

Illumina Microarray of MRC5 cell with or without KDM7A-DT overexpression

Project description:KDM7A Divergent Transcript (KDM7A-DT) is a stress-induced lncRNAs. In our previous studies, KDM7A-DT showed the most robust cellular phenotype alteration and a significant TP53-dependency upon oxidative and oncogenic stress induction. To investigate the functional roles of KDM7A-DT, we first performed overexpression experiments using fibroblasts. We found that MRC5 cells overexpressing KDM7A-DT escaped cell cycle proliferation and long-term survival ability and were associated with a distinct stress-related morphology (enlarged and flattened cells) compared to cells expressing just the vehicle control. To examine the effects of KDM7A-DT overexpression on the transcriptome, we performed a differential expression gene (DEG) analysis comparing a group of four independent biological replicates of MRC5 overexpressing KDM7A-DT to a group of samples from control cells.

2023-05-01 | E-MTAB-11819 | biostudies-arrayexpress

OSLN Reprogramming cells: empty vector vs. HIF2M-NM-1 over-expression

Project description:Transcriptional profiling of Oct4, Sox2, Lin28 and Nanog (OSLN) reprogramming cell of empty vector compared to HIF2M-NM-1 over-expression at the early stage (day 12) and the late stage(day 30) using fibroblasts MRC5 and IMR90 Eight-condition experiment, empty vector vs. HIF2M-NM-1 over-expression cells, at early stage vs. late stage, and fibroblasts MRC5 vs. IMR90

2014-05-01 | E-GEOD-54898 | biostudies-arrayexpress

Effect of isoflavone agonists of IRF-3 on response to RNA viruses

Project description:There is a growing need for novel antiviral therapies that are broad-spectrum, effective, and not subject to resistance due to viral mutations. Using high-throughput screening methods, including computational docking studies and an ISG54-luciferase reporter assay, we identified a class of isoflavone compounds that act as specific agonists of innate immune signaling pathways and cause activation of the IRF-3 transcription factor. The objective of the microarray study was to examine the biological pathways associated with global gene expression changes following agonist treatment. Total RNA isolation and mRNA amplification were performed on equal masses of total RNA from MRC5 cells treated with either DMSO (negative control; n=3), or 10μM of the isoflavone agonist KIN 101 (n=3) at 20 hours post treatment. As a positive control for response to an RNA virus, total RNA isolation and mRNA amplification was performed on equal masses of total RNA from MRC5 cells infected with Sendai virus (n=3) at 20 hours post infection.

2012-05-17 | E-GEOD-38016 | biostudies-arrayexpress

Real-time quantitative PCR analysis of mouse lungs

Project description:Balb/cJ mouse received control RNAi or RNAi to 8-oxoguanine DNA glycosylase (Ogg1) intranasally prior to the exposure for 1 h to a) glucose oxidase (1 mU) to induce OGG1-BER or b) OGG1-BER product 8-oxoguanine (1 μM). We used SABiosciences Mouse Inflammatory Cytokines & Receptors PCR Array (PAMM-011A) to quantitate inflammatory gene expression dependent on OGG1 and its product 8-oxoguanine.

2014-08-26 | GSE60711 | GEO

Cyclosporine on fibroblast

Project description:To elucidate the gene profile of anti-fibroproliferative effects of cyclosporine, we added TGF-b and/or CsA to MRC5 (fetal human lung fibroblast) cell line. After 24 hours serum starvation, fibroblasts were treated with 3 ng/ml TGF-β1 and were treated with or without 2μg/ml Cyclosporine and effects were examined at 48 hours after treatment. Expression of three genes (IGFBP3, ID1 and PPARG) from this signature was quantified in the same RNA samples by real-time PCR. TGF-β and cyclosporine induced gene expression data was measured in MRC5 (fetal human fibroblast cell line) at 48h after treatments. The dose of TGF-β was 3 ng/ml and cyclosporine was 2 μg/ml. The comparison was done between four groups (control, TGF-β, cyclosporine and TGF-β plus cyclosporine).Three independent experiments were performed at each treatments using different samples for each experiment.

2010-11-09 | E-GEOD-25200 | biostudies-arrayexpress

Nucleotide resolution genome-wide mapping of 8-oxoG damage

Project description:Single nucleotide resolution sequencing of DNA damage is required to decipher the complex causal link between the identity and location of DNA adduct and mutation patterns in the genome. We coupled the specificity of the repair enzyme with the efficiency of a one-pot click-DNA ligation reaction to insert a readable oligonucleotide code sequence. The biocompatible code enabled high-throughput, base resolution sequencing of the 8-oxoguanine site and thus have named the method click-code-seq. By applying click-code-seq to a eukaryotic (yeast) genome, we uncovered thousands of 8-oxoguanine sites with features and patterns suggesting a potential relationship to chromatin formation and transcription.

2018-06-28 | GSE112212 | GEO

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