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Immediate-Early and Delayed Primary Response Genes are Distinct in Function and Genomic Architecture

ABSTRACT: Transcriptional profiling time course of serum deprived quiescent human T98G cells follwing platelet derived growth factor (PDGF) stimulation in the absence and presence of the translation inhibitor, cycloheximide. RNA was harvested at 0.5, 2, and 4 hr following PDGF treatment. Keywords: time course

ORGANISM(S): Homo sapiens

PROVIDER: GSE8315 | GEO | 2007/07/03

SECONDARY ACCESSION(S): PRJNA101293

REPOSITORIES: GEO

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Immediate-Early and Delayed Primary Response Genes are Distinct in Function and Genomic Architecture

Project description:Transcriptional profiling time course of serum deprived quiescent human T98G cells follwing platelet derived growth factor (PDGF) stimulation in the absence and presence of the translation inhibitor, cycloheximide. RNA was harvested at 0.5, 2, and 4 hr following PDGF treatment. Keywords: time course Two-color microarrays with dye-swap; 3 biological replicates per condition, independently grown and harvested. One replicate per array.

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Project description:We conducted a proof-of-concept experiment to explore the possibility of using gene expression-based high throughput screening (GE-HTS) to find inhibitors of a signaling cascade, using platelet derived growth factor receptor (PDGFR) signaling as the example. To define ERK/PDGFR activation signature, we performed gene expression profiling using Affymetrix U133A arrays 0.5-4 hours following PDGF stimulation, thereby identifying those genes whose expression is correlated with PDGFR activity. In order to identify the component of the gene expression signature that was attributable to ERK activation by PDGFR (as opposed to other pathways downstream of PDGFR), we also pretreated the cells will the ERK inhibitors U0126 and PD98059, and repeated the gene expression profiling studies. Keywords: time course, inhibitor treatment

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