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GSE33710
Homo sapiens
5 Downloadable Samples
Affymetrix Human Genome U133A Array (hgu133a)
Description
Senescence in WI-38 cell context was induce by RASv12 over expression Cellular senescence is a permanent cell cycle arrest that is triggered by cancer- initiating or promoting events in mammalian cells and is now considered a major tumour suppressor mechanism. Here, we did a transcriptomic analysis and compared WI-38 contol wich is a human fibroblaste cell line and WI-38 that overexpressed RASv12 a G protein that induce senescence. The goal of our project is to compare transciptomic profile of human growing fibroblast (WI-38 control) and senescent human fibroblast (WI-38 OERAS)
Publication Title
Senescence is an endogenous trigger for microRNA-directed transcriptional gene silencing in human cells.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 1 Downloadable Sample
Description
In humans, there are four Ago proteins (Ago1–4) and AGO1- and 2 were previously implicated in TGS induced by exogenous siRNAs and microRNAs (miRs) directed against gene promoter transcripts via promotion of changes in histone covalent modifications and DNA methylation. Not-with-standing, many mechanistic details of this process remain poorly defined in human cells, and very little is known about the identity of possible endogenous signals, which may drive this process in human cells. Given the evolutionary conserved role of siRNAs and AGO proteins in TGS and heterochromatin formation, we set out to analyse their possible involvement in senesence-associated repression of E2F target genes. To obtain a detailed picture of AGO-immunoprecipitating miRs (RIP) in senescent cells, we used next-generation sequencing (NGS)(RIP-Seq). We also included histone H3 dimethylated on lysine 9 (H3K9me2) in this analysis to assign potential AGO2-interacting miRs to a repressive chromatin state and unfractionated, cellular RNA from senescent cells for normalisation. Overall design: Determination of AGO AGO-immunoprecipitating miRs in WI-38 senescent human fibroblast
Publication Title
Senescence is an endogenous trigger for microRNA-directed transcriptional gene silencing in human cells.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 4 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
In the present study, we investigated the consequences of n-3 polyunsaturated fatty acids (PUFA) depletion on hepatic lipid metabolism in mice fed during three months with a diet presenting a high n-6/n-3 PUFA ratio to induce n-3 PUFA depletion. Microarray analyses were performed to identify the molecular targets involved in the development of hepatic steatosis associated with n-3 PUFA depletion.
Publication Title
Hepatic n-3 polyunsaturated fatty acid depletion promotes steatosis and insulin resistance in mice: genomic analysis of cellular targets.
Sample Metadata Fields
Sex, Specimen part, Treatment
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
Most human cancers present hyperactivated sumoylation, and cancer cell lines are usually highly sensitive to the lack of it, supporting potential application of sumoylation chemical inhibitors in cancer therapy. Here, we explored the impact of hyposumoylation (Ubc9 haploinsufficiency) on cancer development in mice using Apc loss-driven intestinal tumorigenesis model.
Publication Title
An unanticipated tumor-suppressive role of the SUMO pathway in the intestine unveiled by Ubc9 haploinsufficiency.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 5 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
The Lgr5+ intestinal stem cell, Paneth and transit-amplifying cell compartment constitute the intestinal crypt which is the constant source of differentiated epithelial cells that replenish the intestinal villi ensuring organ maintenance and regeneration. The Lgr5+ crypt-based columnar (CBC) cells have been identified as the intestinal stem cells (ISCs) and, importantly, as cells-of-origin of intestinal cancer.
Publication Title
An unanticipated tumor-suppressive role of the SUMO pathway in the intestine unveiled by Ubc9 haploinsufficiency.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 10 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
We investigate the contribution of IRE1 signaling to the modulation of U87 glioma cells transcriptome upon various stresses. To this end, IRE1 control and IRE1 dominant negative expressing U87 glioma cells were subjected to environmental or chemical challenges and their transcriptome monitored using Affymetrix microarrays.
Publication Title
Posttranscriptional regulation of PER1 underlies the oncogenic function of IREα.
Sample Metadata Fields
Cell line, Treatment
View Samples- Mus musculus
- 18 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Sumoylation coordinates the repression of inflammatory and anti-viral gene-expression programs during innate sensing.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 18 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Bone marrow derived dendritic cells were generated from Ubc9[fl;-] and Ubc9[+/+] mice. After in vitro derivation in the presence of GM-CSF, dendritic cells were treated with tamoxifen for four days to cause CreERT2 activation, and induce Ubc9 floxed allele deletion. This allowed comparative transcriptomic analysis of Ubc9[+/+] and Ubc9[-/-] dendritic cells unstimulated or stimulated with 10ng/ml LPS for one hour and six hours.
Publication Title
Sumoylation coordinates the repression of inflammatory and anti-viral gene-expression programs during innate sensing.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 40 Downloadable Samples
- Affymetrix HT HG-U133+ PM Array Plate (hthgu133pluspm)
Description
Glioblastoma multiforme is the most lethal form of glioma with an overall survival at 5 years nearly null, which mainly results from acquired resistance to therapies. Large scale sequencing studies on human cancer biopsies defined IRE1alpha as the fifth most oncogenic mutated kinase in human cancer. IRE1alpha is a major component of the Unfolded Protein Response signaling and increasing evidence suggests that it is a central player in GBM development.
Publication Title
Dual IRE1 RNase functions dictate glioblastoma development.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Homo sapiens
- 26 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
Total RNA was extracted from apratoxin A or vehicle treated HT29 cells using the RNeasy Mini Kit (Qiagen). Probe values from CEL files were condensed to probe sets using Rosetta Resolver software. Resolver ANOVA analysis was then performed between groups.
Publication Title
A functional genomics approach to the mode of action of apratoxin A.
Sample Metadata Fields
No sample metadata fields
View Samples