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pubmed:abstractText |
Prior studies had suggested that Akt activity is elevated in a subset of breast cancers. In this study, to test the effect of active Akt-3 on estrogen receptor function, we have produced MCF-7 cells, which express active Akt-3 and examined the estrogen responsiveness of these cells in vivo and in vitro. Experimental Design: MCF-7 cells expressing active Akt-3 were studied for estradiol (E2) responsiveness in vitro by both using an estrogen receptor element reporter construct as well as looking at induction of endogenous genes. These cells were also studied in vivo after injection into nude, ovariectomized mice by following tumor growth rates in the presence or absence of E2, tamoxifen, or the pure antiestrogen, ICI 182,780 (fulvestrant).
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pubmed:affiliation |
Department of Molecular Pharmacology, Stanford University, 269 West Campus Drive, Stanford, California 94305-5174, USA.
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