Title : Growth-inhibitory effects of the natural phyto-oestrogen genistein in MCF-7 human breast cancer cells.

Pub. Date : 1994

PMID : 7833143






5 Functional Relationships(s)
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1 Since the mitogenic action of insulin and insulin-like growth factor (IGF)-I in MCF-7 cells is a tyrosine kinase-dependent phenomenon, we analysed the genistein impact on S-phase entry produced by insulin in cultures partially synchronised in G0/G1 phase by serum deprivation. Genistein insulin Homo sapiens
2 Since the mitogenic action of insulin and insulin-like growth factor (IGF)-I in MCF-7 cells is a tyrosine kinase-dependent phenomenon, we analysed the genistein impact on S-phase entry produced by insulin in cultures partially synchronised in G0/G1 phase by serum deprivation. Genistein insulin Homo sapiens
3 Since the mitogenic action of insulin and insulin-like growth factor (IGF)-I in MCF-7 cells is a tyrosine kinase-dependent phenomenon, we analysed the genistein impact on S-phase entry produced by insulin in cultures partially synchronised in G0/G1 phase by serum deprivation. Genistein insulin Homo sapiens
4 Insulin addition after a 36-h culture period in serum-free medium produced a strong increase in the percentage of S-phase cells (from 18.4 +/- 2.3 to 46.2 +/- 4.1 after 24 h) which was almost completely blocked by 100 microM genistein (20.1 +/- 3.1). Genistein insulin Homo sapiens
5 Immunofluorescence analysis with a fluoresceine isothiocyanate (FITC)-conjugated anti-phosphotyrosine antibody revealed a strong increase in MCF-7 cell staining after insulin stimulation, but not when genistein was added with insulin. Genistein insulin Homo sapiens