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Accession IconGSE39718

Time-course effect of estradiol and ERa17p on Early Gene expression in MDA-MB-231 cells

Organism Icon Homo sapiens
Sample Icon 2 Downloadable Samples
Technology Badge Icon Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)

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ER17p is a synthetic peptide corresponding to the sequence P295LMIKRSKKNSLALSLT311 of the estrogen receptor alpha (ER) and initially synthesized to mimic its calmodulin binding site. ER17p was subsequently found to elicit estrogenic responses in E2-deprived ER-positive breast cancer cells, increasing proliferation and E2-dependent gene transcription. Surprisingly, in E2-supplemented media, ER17p induced apoptosis and modified the actin network, influencing thereby cell motility. Here, we report that ER17p induces a massive early (3h) transcriptional activity in breast cancer cell line MDA-MB-231.
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