Mechanisms of estrogen action on the proliferation of MCF-7 human breast cancer cells in an improved culture medium.

Abstract

The effects of 17 beta-estradiol and tamoxifen (TAM) on the proliferation of responsive MCF-7 and unresponsive HBC-4 human breast cancer cells were studied in a defined culture medium containing insulin (2 micrograms/ml), transferrin (2 micrograms/ml), ethanolamine (2 microM), and selenite (25 nM). MCF-7 cells grew at a population-doubling rate of 2.0 days… (More)

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