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Global analysis of p53-regulated transcription reveals its direct targets and unexpected regulatory mechanisms (microarray)

ABSTRACT: HCT116 microarray done 12 hours after treatment with DMSO (control) or Nutlin

ORGANISM(S): Homo sapiens

PROVIDER: GSE53965 | GEO | 2014/05/15

SECONDARY ACCESSION(S): PRJNA234052

REPOSITORIES: GEO

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Global analysis of p53-regulated transcription reveals its direct targets and unexpected regulatory mechanisms (GRO-Seq)

Project description:GRO-seq of HCT116 cells treated with Nutlin to activate p53 HCT116 cells were treated with Nutlin or DMSO for 1 hour

2014-05-15 | E-GEOD-53964 | biostudies-arrayexpress

Global analysis of p53-regulated transcription reveals its direct targets and unexpected regulatory mechanisms (microarray)

Project description:HCT116 microarray done 12 hours after treatment with DMSO (control) or Nutlin Total RNA from HCT116 cells was harvested with an RNeasy kit (Qiagen) and analyzed on Affymetrix HuGene 1.0 ST arrays following the manufacturer’s instructions. Microarray data were processed using Partek Genomics Suite 6.6. Anova was used to call differentially expressed genes for which any isoform showed a fold change > |+/-1.5| with FDR <0.05. There were 362 genes called as upregulated and 367 genes as downregulated.

2014-05-15 | E-GEOD-53965 | biostudies-arrayexpress

Global analysis of p53-regulated transcription reveals its direct targets and unexpected regulatory mechanisms (GRO-Seq)

Project description:GRO-seq of HCT116 cells treated with Nutlin to activate p53

2014-05-15 | GSE53964 | GEO

Global analysis of p53-regulated transcription identifies its direct targets and unexpected regulatory mechanisms.

Project description: Not available

| S-EPMC4033189 | biostudies-literature

RFX7-regulated transcriptome in HCT116

Project description:Identification of the RFX7-regulated transcriptome in Nutlin-3a and DMSO control treated HCT116 cells

2021-06-17 | GSE162160 | GEO

Selective and direct p53 inhibition by iASPP

Project description:We performed p53 ChIP-seq analysis of Nutlin-treated HCT116 cells to identify high-confident p53 regulated targets. And we performed ChIP-seq using an anti-p53 antibody in HCT116 cells treated with control or iASPP RNAi to identify iASPP regulated p53 targets.

2019-09-23 | GSE113338 | GEO

Global analysis of p53-regulated transcription reveals its direct targets and unexpected regulatory mechanisms

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-05-15 | E-GEOD-53966 | biostudies-arrayexpress

Global analysis of p53-regulated transcription reveals its direct targets and unexpected regulatory mechanisms

Project description:This SuperSeries is composed of the SubSeries listed below.

2014-05-15 | GSE53966 | GEO

RFX7, ANKRA2, and p53-regulated transcriptome in RPE-1

Project description:Identification of the RFX7-regulated transcriptome in Nutlin-3a and DMSO control treated RPE-1 cells

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p53-induced apoptosis is specified by a translation program regulated by PCBP2 and DHX30.

Project description:Activation of p53 by the small molecule Nutlin can result in a combination of cell cycle arrest and apoptosis. The relative strength of these events is difficult to predict, leaving uncertainty as to the therapeutic benefits of Nutlin. Here, we report a new translation control mechanism shaping p53-dependent apoptosis. We performed polysomal profiling in the cell lines SJSA1 and HCT116, of which only the first undergoes robust cell death in response to p53 activation by Nutlin. We establish Nutlin-induced apoptosis in SJSA1 cells to be associated with a set of translationally enhanced mRNAs carrying a newly identified 3’UTR motif which we labeled CG-motif. We identified PCBP2 and DHX30 as interactor proteins of the CG-motif that are more abundant in HCT116 cells compared to SJSA1. The binding of DHX30 to the CG-motif detected in HCT116 cells was shown to be dependent on PCBP2. Interestingly, DHX30 depletion enhances polysome association of CG-motif mRNAs in HCT116 cells, shifting their outcome towards apoptosis. In U2OS, an osteosarcoma-derived cell line that unlike SJSA1 undergoes persistent cell cycle arrest in response to Nutlin, DHX30 is highly expressed and its depletion enhances the expression of CG-motif mRNAs.

2020-03-30 | GSE95024 | GEO

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