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Gene expression profiles induced by overexpression of PDEF in MCF10A mammary epithelial cell line

ABSTRACT: Recent studies suggest that PDEF is required for secretory cell differentiation in several epithelial tissues. To investigate PDEF in the mammary gland, we examined the effect of this transcription factor on gene expression using microarray based profiling of MCF-10A cells. These cells are non-transformed mammary epithelial cells that express protein and gene expression programs of basal epithelial cells and undetectable levels of endogenous PDEF. Bioinformatics analysis of the genes induced or repressed by PDEF overexpression in MCF10A cells revealed a striking effect on expression of luminal and myoepithelial cell markers.

ORGANISM(S): Homo sapiens

PROVIDER: GSE40986 | GEO | 2014/03/29

SECONDARY ACCESSION(S): PRJNA175498

REPOSITORIES: GEO

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Gene expression profiles induced by overexpression of PDEF in MCF10A mammary epithelial cell line

Project description:Recent studies suggest that PDEF is required for secretory cell differentiation in several epithelial tissues. To investigate PDEF in the mammary gland, we examined the effect of this transcription factor on gene expression using microarray based profiling of MCF-10A cells. These cells are non-transformed mammary epithelial cells that express protein and gene expression programs of basal epithelial cells and undetectable levels of endogenous PDEF. Bioinformatics analysis of the genes induced or repressed by PDEF overexpression in MCF10A cells revealed a striking effect on expression of luminal and myoepithelial cell markers. Six samples were harvested 26 hours after retroviral infection with either vector control or PDEF. Each condition was performed in triplicate.

2014-03-29 | E-GEOD-40986 | biostudies-arrayexpress

CEACAM6 is a PDEF induced gene in breast cancer

Project description:Identifying PDEF regulated genes may shed light on the mechanism by which PDEF may induce breast cancer progression. To that purpose, we have used the MCF-7 human breast tumor cell line model to identify PDEF induced genes. Briefly, PDEF expression was down regulated by shRNA in MCF-7 cells and RNA probes from PDEF-down regulated and control MCF-7 cells were used to screen the Affymetrics HG-U133A Gene Chips. This analysis found 62 genes that were induced 2-fold or higher by PDEF. Further analysis of 3 of these genes namely S100A7, CEACAM6 and B7-H4 in primary breast tumors showed CEACAM6 as a frequently elevated and co-exressed gene with PDEF in these tumors. We previously reported a role for PDEF (prostate derived Ets transcription factor) in breast tumor progression and its association with poor clinical outcome in ER+ breast cancer. To gain further insights into PDEF action in breast cancer, we down regulated PDEF expression by shRNA in MCF-7 human breast tumor cell line, and screened the HG-U133A human gene chips with probes from PDEF down-regulated and control MCF-7 cells. This analysis identified CEACAM6 as one of the genes induced by PDEF. Further analysis of CEACAM6 expression in relation to PDEF in 93 ER+ primary breast tumors showed largely concordant expression of these molecules. To our knowledge, our findings of CEACAM6 as a PDEF induced gene and their elevated co-expression in breast cancer have not been described before.

2012-05-01 | GSE37662 | GEO

Identification of a PDEF regulatory network that inhibits prostate cancer metastasis

Project description:To investigate the role of PDEF in prostate cancer metastasis, we employed microarray analysis of PC3 cells ectopically expressing a pBABE vector control (PC3-SCR) or PDEF-containing vector (PC3-PDEF).

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Timecourse total transcriptome sequencing of MCF10A cells undergoing acinus formation.

Project description:RNA-seq was performed for transcriptional analysis of MCF10A cells, an epithelial mammary cell line. MCF10A cells were cultured in 3D acinus forming conditions (in Matrigel). Timepoints analysed were 24h, 34h, 36h, 38h and 48h into acinus formation. Control cells were monoloayer.

2014-10-02 | E-MTAB-2969 | biostudies-arrayexpress

Effect of EGF and/or HER2 on the growth of MCF10A cells on extracellular matrix: time course

Project description:Mammary epithelial cells MCF10A and HER2 overexpressing MCF10A cells were grown on matrigel in the absence or presence of epidermal growth factor. Cells were lysed and RNA was collected at 1.5,3,5,7,9 days.

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CEACAM6 is a PDEF induced gene in breast cancer

2012-04-30 | E-GEOD-37662 | biostudies-arrayexpress

Expression profiling of MCF10A cells in 2D and 3D culture

Project description:In these microarray experiments, we characterize the gene expression of mammary epithelial cells (MCF10A cells) grown in either a traditional monolayer cell culture setting (2D) or on Matrigel, which induces single MCF10A cells to form organized acinar structures (3D). Morphogenesis of mammary epithelial cells into organized acinar structures in vitro is accompanied by widespread changes in gene expression patterns, including a substantial decrease in expression of Myc. The purpose of this study was to analyze the impact of morphogenesis and organization on gene expression with respect to changes in overall gene expression and Myc target gene expression. MCF10A cells were cultured in 2D for either 2 or 5 days (3 biological replicates each) or in 3D for 8 or 16 days (3 or 5 biological replicates, respectively)

2011-06-01 | E-GEOD-26148 | biostudies-arrayexpress

Expression profiling of MCF10A cells in 2D and 3D culture

2011-06-01 | GSE26148 | GEO

Gene Expression in MCF10A cells through Differentiation on Transwells

Project description:To further understand the differences occurring in MCF10A cells as they polarize and differentiate in the Transwell® model, we performed gene expression profiling with Affymetrix Human Genome U133 Plus 2.0 Arrays. Four experimental time points, were sampled: conventional cultures of MCF10A cells grown on plastic (Monolayer) and MCF10A cells plated on Transwells® sampled at three TEER values, 200-300 Ω cm2 (Base), 1400-1600 Ω cm2 (Midpoint), and 3000-3200 Ω cm2 (Plateau). Keywords: Mammary Epithelial Cell Differentiation

2008-01-31 | GSE10070 | GEO

MCF10A cells expressing HER2 and HER3 and grown in three-dimensional cultures

Project description:The tyrosine kinase receptors HER2 and HER3 play an important role in breast cancer. The HER2/HER3 heterodimer is a critical oncogenic unit associated with reduced relapse-free and decreased overall survival. We provide gene expression profile of the mammary epithelial cells MCF10A expressing HER2, HER3 or HER2/HER3 and grown in three-dimensional cultures for 15 days in the presence of heregulin, a known HER3-ligand that stabilizes and activates the HER2/HER3 heterodimer. The mammary epithelial cells MCF10A were transduced with retroviral vectors expressing HER2, HER3 or both. Cells from each group were grown for 15 days in three-dimensional cultures. At the end of the experiment, RNA was extracted for gene expression analysis.

2012-09-01 | E-GEOD-37009 | biostudies-arrayexpress

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