Transcriptomics

Dataset Information

242

Transcription profiling by array of human breast cancer cell line MCF7 expressing TAP tagged ER-alpha following hormone treatment


ABSTRACT: MCF-7 TET Off cells (MCF-7 wt) were used to produce stable clones expressing ER-alpha tagged with TAP-tag at the C-term (C-TAP-ER-alpha). All cells were grown in Dulbecco's modified Eagle's medium (DMEM), starved by using DMEM w/o phenol red and 5% Dextran Coated Charcoal stripped serum (DCC-FBS) for 5 days. Cells were stimulated with 17 beta Estradiol (E2), 4-idrossi-tamoxifen (Tam), raloxifene (Ral) and Fulvestrant (ICI) at the concentration of 10-8M for 12 hours or with vehicle Ethanol. Biological replicate were lysed and RNA extracted were pooled. For mRNA expression profiling, 500 ng total RNA were reverse transcribed and used for synthesis of cDNA and biotinylated cRNA. Finally cRNA were hybridized for 19 hours on Illumina HumanHT-12 v4.0 BeadChips and after scanning, data analysis was performed.

ORGANISM(S): Homo sapiens  

DISEASE(S): Breast Cancer

SUBMITTER: Alessandro Weisz  

PROVIDER: E-MTAB-1196 | ArrayExpress | 2012-06-25

REPOSITORIES: ArrayExpress

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Publications

Molecular mechanisms of selective estrogen receptor modulator activity in human breast cancer cells: identification of novel nuclear cofactors of antiestrogen-ERα complexes by interaction proteomics.

Cirillo Francesca F   Nassa Giovanni G   Tarallo Roberta R   Stellato Claudia C   De Filippo Maria Rosaria MR   Ambrosino Concetta C   Baumann Marc M   Nyman Tuula A TA   Weisz Alessandro A  

Journal of proteome research 20121130 1


Estrogen receptor alpha (ERα) is a ligand-activated transcription factor that controls key cellular pathways via protein-protein interactions involving multiple components of transcriptional coregulator and signal transduction complexes. Natural and synthetic ERα ligands are classified as agonists (17β-estradiol/E(2)), selective estrogen receptor modulators (SERMs: Tamoxifen/Tam and Raloxifene/Ral), and pure antagonists (ICI 182,780-Fulvestrant/ICI), according to the response they elicit in horm  ...[more]

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