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GSE62166
Homo sapiens
7 Downloadable Samples
Affymetrix Human Transcriptome Array 2.0 (hta20)
Description
The cyclin-dependent kinase inhibitor p21WAF1/Cip1 is the prototype downstream effector of the tumor suppressor protein p53. Yet, evidence from human cancer and mice models, imply that p21WAF1/Cip1, under certain conditions, can exercise oncogenic activity. The mechanism behind this behavior is still obscure. Within this context we unexpectedly noticed, predominantly in p53 mutant human cancers, that a subset of highly atypical cancerous cells expressing strongly p21WAF1/Cip1 demonstrated also signs of proliferation. This finding suggests either tolerance to high p21WAF1/Cip1 levels or that p21WAF1/Cip1 per se guided a selective process that led to more aggressive off-springs. To address the latter scenario we employed p21WAF1/Cip1-inducible p53-null cellular models and monitored them over a prolonged time period, using high-throughput screening means. After an initial phase characterized by stalled growth, mainly due to senescence, a subpopulation of p21WAF1/Cip1 cells emerged, demonstrating increased genomic instability, aggressiveness and chemo-resistance. At the mechanistic level unremitted p21WAF1/Cip1 production saturates the CRL4CDT2 and SCFSkp2 ubiquitin ligase complexes reducing the turn-over of the replication licensing machinery. Deregulation of replication licensing triggered replication stress fuelling genomic instability. Conceptually, the above notion should be considered when anti-tumor strategies are designed, since p21WAF1/Cip1 responds also to p53-independent signals, including various chemotherapeutic compounds.
Publication Title
Chronic p53-independent p21 expression causes genomic instability by deregulating replication licensing.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Homo sapiens
- 59 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
We identified fibro-inflammatory and keratin gene expression signatures in systemic sclerosis skin.
Publication Title
Dissecting the heterogeneity of skin gene expression patterns in systemic sclerosis.
Sample Metadata Fields
Age, Specimen part, Race, Subject, Time
View Samples- Homo sapiens
- 59 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
We identified eighty two skin transcripts significantly correlated with the severity of interstitial lung disease (ILD) in systemic sclerosis.
Publication Title
Skin gene expression correlates of severity of interstitial lung disease in systemic sclerosis.
Sample Metadata Fields
Age, Specimen part, Race, Subject
View Samples- Arabidopsis thaliana
- 31 Downloadable Samples
- Arabidopsis Gene 1.1 ST Array (aragene11st)
Description
Brassinosteroids (BRs) are growth-promoting plant hormones that play a role in abiotic stress responses, but molecular modes that enable this activity remain largely unknown. Here we show that BRs participate in the regulation of freezing tolerance. BR signaling-defective mutants of Arabidopsis thaliana were hypersensitive to freezing before and after cold acclimation. The constitutive activation of BR signaling, in contrast, enhanced freezing resistance. Evidence is provided that the BR-controlled basic helixloophelix transcription factor CESTA (CES) can contribute to the constitutive expression of the C-REPEAT/DEHYDRATION-RESPONSIVE ELEMENT BINDING FACTOR (CBF) transcriptional regulators that control cold responsive (COR) gene expression. In addition, CBF-independent classes of BR-regulated COR genes are identified that are regulated in a BR- and CES-dependent manner during cold acclimation. A model is presented in which BRs govern different cold-responsive transcriptional cascades through the posttranslational modification of CES and redundantly acting factors. This contributes to the basal resistance against freezing stress, but also to the further improvement of this resistance through cold acclimation.
Publication Title
Brassinosteroids participate in the control of basal and acquired freezing tolerance of plants.
Sample Metadata Fields
Age, Specimen part, Treatment
View Samples- Homo sapiens
- 12 Downloadable Samples
IlluminaHiSeq2000
Description
RNA-Seq analysis of SSA treated cells Overall design: HeLa cells, nuclear and cytoplasmic fractions, treated with SSA or MeOH
Publication Title
Global analysis of pre-mRNA subcellular localization following splicing inhibition by spliceostatin A.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 36 Downloadable Samples
- Affymetrix Mouse Genome 430A 2.0 Array (mouse430a2)
Description
In mouse models, the bromodomain PHD finger transcription factor (BPTF) chromatin remodeling subunit in tumor cells suppresses natural killer (NK) cell antitumor activity.
Publication Title
BPTF Depletion Enhances T-cell-Mediated Antitumor Immunity.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Genome 430A 2.0 Array (mouse430a2)
Description
Depleting the NURF chromatin remodeling complex results in enhanced antitumor immunity using mouse tumor models syngenic to two strain backgrounds.
Publication Title
BPTF Depletion Enhances T-cell-Mediated Antitumor Immunity.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 10 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Overarching aim is to achieve a greater understanding of the control of progenitor cells within the adult human retina within the normal and diseased retinal microenvironment. Specifically we will assess via our experimental designs: (i) the control of CD133+ retinal cell populations that display mitotic potential and differentiation and
Publication Title
CD133+ adult human retinal cells remain undifferentiated in Leukaemia Inhibitory Factor (LIF).
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 5 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Using gene expression to predict differences in the secretome of human omental vs. subcutaneous adipose tissue.
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 8 Downloadable Samples
- Affymetrix Human Tiling 2.0R Set, Array 1 (hs35bp01r), Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
p73 is a p53 family transcription factor that plays critical roles during development and tumor suppression. We analyzed p73 activity using a combination of ChIP-on-Chip and gene expression profiling, both at baseline and after treatment with the mTOR inhibitor rapamycin.
Publication Title
Differential regulation of the p73 cistrome by mammalian target of rapamycin reveals transcriptional programs of mesenchymal differentiation and tumorigenesis.
Sample Metadata Fields
Treatment
View Samples