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ABSTRACT:
PROVIDER: PRJNA94595 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Resveratrol-Induced Gene Expression Profiles in Human Prostate Cancer Cells
| PRJNA104661 | ENA
Project description:This SuperSeries is composed of the following subset Series: GSE4299: Resveratrol-Induced Gene Expression Profiles in Human Prostate Cancer Cells GSE4300: Androgen arrays for Resveratrol-Induced Gene Expression Profiles in Human Prostate Cancer Abstract: OBJECTIVE: The transhydroxystilbene resveratrol is found at high levels in red wine and grapes, and red wine consumption may be inversely associated with prostate cancer risk. To gain insights into the possible mechanisms of action of resveratrol in human prostate cancer, we did DNA microarray analysis of the temporal transcriptional program induced by treatment of the human prostate cancer cell line LNCaP with resveratrol. METHODS: Spotted DNA microarrays containing over 42,000 elements were used to obtain a global view of the effects of resveratrol on gene expression. Prostate-specific antigen (PSA) and androgen receptor (AR) expression were determined by Northern blot and immunoblot analyses. Cell proliferation was determined by the 3-(4, 5-dimethylthiazolyl-2)-2, 5-diphenyltetrazolium bromide assay and cell cycle analysis by flow cytometry. RESULTS: We observed time-dependent expression changes in >1,600 transcripts as early as 6 hours after treatment with resveratrol. Most striking was the modulation of a number of important genes in the androgen pathway including PSA and AR. Resveratrol also down-regulated expression of cell cycle and proliferation-specific genes involved in all phases of the cell cycle, induced negative regulators of proliferation, caused accumulation of cells at the sub-G1 and S phases of the cell cycle, and inhibited cell proliferation in a time- and dose-dependent manner. CONCLUSION: Resveratrol produces gene expression changes in the androgen axis and cell cycle regulators that may underlie its putative anticancer activities in prostate cancer. Refer to individual Series
2006-03-07 | E-GEOD-4399 | biostudies-arrayexpress
Project description:Androgen arrays for Resveratrol-Induced Gene Expression Profiles in Human Prostate Cancer
| PRJNA104663 | ENA
Project description:Abstract: OBJECTIVE: The transhydroxystilbene resveratrol is found at high levels in red wine and grapes, and red wine consumption may be inversely associated with prostate cancer risk. To gain insights into the possible mechanisms of action of resveratrol in human prostate cancer, we did DNA microarray analysis of the temporal transcriptional program induced by treatment of the human prostate cancer cell line LNCaP with resveratrol. METHODS: Spotted DNA microarrays containing over 42,000 elements were used to obtain a global view of the effects of resveratrol on gene expression. Prostate-specific antigen (PSA) and androgen receptor (AR) expression were determined by Northern blot and immunoblot analyses. Cell proliferation was determined by the 3-(4, 5-dimethylthiazolyl-2)-2, 5-diphenyltetrazolium bromide assay and cell cycle analysis by flow cytometry. RESULTS: We observed time-dependent expression changes in >1,600 transcripts as early as 6 hours after treatment with resveratrol. Most striking was the modulation of a number of important genes in the androgen pathway including PSA and AR. Resveratrol also down-regulated expression of cell cycle and proliferation-specific genes involved in all phases of the cell cycle, induced negative regulators of proliferation, caused accumulation of cells at the sub-G1 and S phases of the cell cycle, and inhibited cell proliferation in a time- and dose-dependent manner. CONCLUSION: Resveratrol produces gene expression changes in the androgen axis and cell cycle regulators that may underlie its putative anticancer activities in prostate cancer. This SuperSeries is composed of the SubSeries listed below.
2006-03-08 | GSE4399 | GEO
Project description:Resveratrol, a natural phytoestrogen found in red wine and a variety of plants, is reported to have protective effects against lung cancer, however there is very little work directed towards the understanding of the mechanism of action of resveratrol in lung cancer. In this study we used an experimental approach to understand the biological activity and molecular mechanisms of resveratrol in A549 lung cancer cells. Gene expression profiles were compiled using an oligonucleotide microarray to determine altered expression levels in resveratrol treated cells. Keywords: Genetic modification of A549 cells in response to resveratrol
2007-09-15 | GSE9008 | GEO
Project description:Resveratrol, a natural phytoestrogen found in red wine and a variety of plants, is reported to have protective effects against lung cancer, however there is very little work directed towards the understanding of the mechanism of action of resveratrol in lung cancer. In this study we used an experimental approach to understand the biological activity and molecular mechanisms of resveratrol in A549 lung cancer cells. Gene expression profiles were compiled using an oligonucleotide microarray to determine altered expression levels in resveratrol treated cells. Experiment Overall Design: A549 cells were treated with resveratrol (25microM) or with ethanol control for 48 h. 4 samples in all were hybridized to the affymetrix chip, one control sample and 3 replicates of the resveratrol treated sample. Experiment Overall Design: Gene ontology-based gene lists are supplied in a supplementary file (Genelists.txt) at the foot of this record.
2008-06-16 | E-GEOD-9008 | biostudies-arrayexpress
Project description:Gene expression profiles of FGF-treated prostate cancer cells
| PRJNA263407 | ENA
Project description:SPOP is a ubiquitin ligase adaptor frequently mutated in prostate cancer. It is involved in ubiquitination and degradation of substrate proteins. We examined the impact of wild-type and mutant SPOP on the transcriptional profile of prostate cancer cells. We cloned several naturally occurring (in human prostate cancer) SPOP mutants and expressed the corresponding constructs in prostate cancer cells. Our experimental conditions were: Human prostate cancer cells (LNCaP-Abl), transfected with control vector, SPOP-wt, and any of the following mutants: SPOP-F102C, SPOP-F133V, SPOP-F133L (2-4 biological replicates each). We analyzed their gene expression profiles for differences induced by SPOP-wt vs SPOP-mutant.
2014-10-10 | E-GEOD-59432 | biostudies-arrayexpress
Project description:We examine the gene expression and chromatin accessibility profiles of four human castration-resistant prostate cancer cell lines including two representative of small-cell neuroendocrine prostate cancer
2020-07-17 | GSE154574 | GEO
Project description:Current smokers develop metastatic prostate cancer more frequently than nonsmokers, suggesting that a tobacco-derived factor induces metastasis. To identify smoking-induced alterations in human prostate tumors, we analyzed gene and protein expression of tumors from current, past, and never smokers and observed distinct molecular alterations in current smokers. Specifically, an immune and inflammation signature was identified in prostate tumors of current smokers that was either attenuated or absent in past and never smokers. Key characteristics of this signature included augmented immunoglobulin expression by tumor-infiltrating B cells, NF-kB activation, and increased interleukin-8 in tumor and blood. In an alternate approach to characterize smoking-induced oncogenic alterations, we explored the effects of nicotine in prostate cancer cells and prostate cancer-prone TRAMP mice. These experiments showed that nicotine increases both invasiveness of human prostate cancer cells and metastasis in tumor-bearing TRAMP mice, indicating that nicotine can induce a phenotype that resembles the epidemiology of smoking-associated prostate cancer progression. In summary, we describe distinct oncogenic alterations in prostate tumors from current smokers and show that nicotine can enhance prostate cancer metastasis. Prostate tissues of cancer patients were selected for RNA extraction and hybridization on Affymetrix microarrays. Gene expression profiles of current, past and never smokers were compared.
2015-04-22 | E-GEOD-68135 | biostudies-arrayexpress