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Androgen arrays for Resveratrol-Induced Gene Expression Profiles in Human Prostate Cancer

ABSTRACT: Arrays for Expression levels of androgen-responsive genes in LNCaP cells exposed to dihydrotestosterone, R1881. Gene-expression changes in LNCaP treated with 1 nmol/L R1881 at 7, 9, 18, 24, 50, and 72 hours; 10 nmol/L dihydrotestosterone at 18 and 50 hours; 100 nmol/L dihydrotestosterone and 1 5mol/L dihydrotestosterone at 24 hours; and androgen deprivation at 46 and 70 hours. This set corresponds to Figure 2 of the publication. An all pairs experiment design type is where all labeled extracts are compared to every other labeled extract. Keywords: all_pairs

ORGANISM(S): Homo sapiens

PROVIDER: GSE4300 | GEO | 2006/02/25

SECONDARY ACCESSION(S): PRJNA104663

REPOSITORIES: GEO

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Androgen arrays for Resveratrol-Induced Gene Expression Profiles in Human Prostate Cancer

Project description:Arrays for Expression levels of androgen-responsive genes in LNCaP cells exposed to dihydrotestosterone, R1881. Gene-expression changes in LNCaP treated with 1 nmol/L R1881 at 7, 9, 18, 24, 50, and 72 hours; 10 nmol/L dihydrotestosterone at 18 and 50 hours; 100 nmol/L dihydrotestosterone and 1 5mol/L dihydrotestosterone at 24 hours; and androgen deprivation at 46 and 70 hours. This set corresponds to Figure 2 of the publication. An all pairs experiment design type is where all labeled extracts are compared to every other labeled extract. Computed

2006-02-24 | E-GEOD-4300 | biostudies-arrayexpress

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Project description:The text description is: LNCaP are androgen receptor expressing prostate carcinoma cells. Genital skin fibroblasts also express the androgen receptor. Cells were either proliferating or they were G0-arrested. Treatment of cells was performed with either the androgen DHT (dihydrotestosterone), the androgen analogue R1881 (methyltrienolone), or the solvent ethanol. Some hybridizations were performed in the type 1 design. In these cases, the hormone treated sample was hybridized against the ethanol treated sample on the same microarray. Hormone mediated induction or repression of gene transcription can directly be deduced from R/G normalized ratios on arrays. For other experiments, the ethanol treated control and the hormone treated experiment were hybridized on separate microarrays against a common reference of RNA. This reference was composed out of common reference batch CRG (50%) and a fibroblast RNA (50%). This reference was called mixed reference. For all experiments, the same batch of mixed reference was used. A compound treatment design type is where the response to administration of a compound or chemical (including biological compounds such as hormones) is assayed. Compound Based Treatment: Ethanol, R1881 (methyltrienolone), or DHT (dihydrotestosterone) Cell Line: LNCaP (prostate cancer) or foreskin fibroblasts Culture Synchrony: proliferation / Go-arrest Keywords: compound_treatment_design

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Project description:The androgen receptor is considered as the key promoter of prostate cancer. It is a transcription factor that controls the transcription of hundreds of its target genes. In this project we focuses on how androgen receptor stimulation by the synthetic androgen R1881 can affect the proteome of peroxiosmes and the antioxidant enzymes in LNCaP cells.

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Transcription profiling of human androgen receptor expressing prostate carcinoma cell line LNCaP and normal human foreskin fibroblasts expressing the androgen receptor treated with dihydrotestosterone (DHT), ethanol, or untreated vs. a common reference, see E-SMDB-3636

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