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HCT116 cells isogenic for p53 expression upon treatment with actinomycin D and nutlin-3

ABSTRACT: HCT116 wild type cells express p53. The isogenic HCT116 p53KO cells have the p53 gene knocked out. Cells were treated for 16 hours. Dosages for actinomycin D treatment was 1 nM, 10 nM, and 100 nM. Dosage for nutlin-3 was 4 uM. Keywords: dose response

ORGANISM(S): Homo sapiens

PROVIDER: GSE12459 | GEO | 2009/09/01

SECONDARY ACCESSION(S): PRJNA113023

REPOSITORIES: GEO

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HCT116 cells isogenic for p53 expression upon treatment with actinomycin D and nutlin-3

Project description:HCT116 wild type cells express p53. The isogenic HCT116 p53KO cells have the p53 gene knocked out. Cells were treated for 16 hours. Dosages for actinomycin D treatment was 1 nM, 10 nM, and 100 nM. Dosage for nutlin-3 was 4 uM. Keywords: dose response Measuring the gene expression profile of the isogenic cell lines when the cells were treated with 2 different drugs at different concentrations

2010-06-24 | E-GEOD-12459 | biostudies-arrayexpress

Expression profile of HCT116 p53+/+ and P53-/- cells treated with Leptomycin B

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Expression profile of HCT116 p53+/+ and P53-/- cells treated with Leptomycin B

Project description:HCT116 wild type cells express p53. The isogenic HCT116 p53KO cells have the p53 gene knocked out. Cells were treated for 16 hours. Dosages for leptomycin B treatment was 2 nM and 20 nM. Measuring the gene expression profile of the isogenic cell lines when the cells were treated with leptomycin B at different concentrations

2010-07-30 | E-GEOD-17472 | biostudies-arrayexpress

p53 ChIP-seq in Nutlin-treated HCT116, MCF7, and SJSA cell lines

Project description:To identify genomic loci occupied by p53, we performed p53 ChIP-seq analysis of colorectal carcinoma cell line HCT116, breast carcinoma line MCF7, and osteosarcoma line SJSA treated with MDM2 inhibitor Nutlin.

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Total RNA-seq from HCT116, MCF7 and SJSA cell lines treated with DMSO and Nutlin

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2017-08-22 | GSE86221 | GEO

Microarray gene expression analyses of HCT116 parental and isogenic p53KO cell lines

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RNAseq from polysomal RNA harvested from HCT116, MCF7 and SJSA cell lines treated with DMSO and Nutlin

Project description:To determine effects of p53 activation on levels of RNA associated with polysomes, we performed RNA-seq analysis of colorectal carcinoma cell line HCT116, breast carcinoma line MCF7, and osteosarcoma line SJSA treated with MDM2 inhibitor Nutlin.

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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

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Nutlin-3 treatment of B-CLL

Project description:Background: p53 plays a key role in determining the clinical features of B cell chronic lymphocytic leukemia (CLL). Disruption of p53 by point mutations, deletion at 17p13, or both, occurs in a fraction of cases at diagnosis and predicts poor survival and chemorefractoriness. In cells with functional p53, p53 activity is inhibited through interaction with MDM2. In fact, p53 can be activated upon exposure of cells to inhibitors of p53/MDM2 interaction, like Nutlins. Exposure of CLL cells to Nutlin-3 is effective in raising the levels of p53 protein with subsequent induction of cell cycle arrest and/or apoptosis, independently of the most relevant prognostic markers. Specific gene-sets and GEP were documented to be associated with response or resistance to Nutlin-3 exposure in p53(wt) or p53(del/mut) CLL. These findings may help to identify novel molecular targets for CLL therapy. Aim: to analyze the gene expression profile (GEP) induced by Nutlin-3 exposure in primary CLL cells from p53(wt) and p53(del/mut) cases. Methods: purified cells from 24 PB CLL samples, all characterized for IGHV mutational status, CD38 and ZAP-70 and p53 mutations (16 p53(wt) CLL, 8 p53(del/mut) CLL of which 6 with del17p13 and p53 mutations, 1 with del17p13 alone, and 1 with p53 mutations alone), were exposed to 10 uM Nutlin-3 for 24 hours. GEP was performed using a dual labelling strategy; the differential expression of the below reported genes were validated by quantitative real-time PCR. specific gene-sets and GEP were documented to be associated with response or resistance to Nutlin-3 exposure in p53(wt) or p53(del/mut) CLL. These findings may help to identify novel molecular targets for CLL therapy.

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Global gene expression analysis in macrophages treated with Nutlin-3

Project description:The goal of the study is to identify p53 target genes specific to macrophages using the p53 stabilizer, Nutlin-3. Macrophages were differentiated x-vivo from monocytes obtained from healthy volunteers either left untreated or treated for 2 hours with 100 ng/mL of lipopolysaccharide (LPS), 0.1%v/v of DMSO (vehicle control for Nutlin-3) or 10 micromolar Nutlin-3. Three replicates were included for each treatment group.

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