Synthetic antiestrogens modulate induction of pS2 and cathepsin-D messenger ribonucleic acid by growth factors and adenosine 3',5'-monophosphate in MCF7 cells.

Abstract

In MCF7 human breast cancer cells, the antiestrogens 4-hydroxy-tamoxifen and ICI 164,384 inhibit the mitogenic activity of epidermal growth factor (EGF) and insulin-like growth factor-I (IGF-I). These growth factors also stimulate the expression of cathepsin-D and pS2 genes. Therefore, we studied the effects of antiestrogens on growth factor induction of… (More)

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