Title : Insulin-like growth factor binding protein 3 (IGF-BP3) inhibits estrogen-stimulated breast cancer cell proliferation.

Pub. Date : 1994 Jan 14

PMID : 7507320






2 Functional Relationships(s)
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1 We show here that MCF7 cell proliferation in steroid-stripped, serum containing media is significantly attenuated by rhIGF-BP3 (p < 0.05), with a maximal 40% inhibition of serum stimulated growth achieved by 6.25nM IGF-BP3. Steroids insulin like growth factor binding protein 3 Homo sapiens
2 These results demonstrate antagonism of steroid stimulated proliferation by an IGF binding protein and are compatible with the hypothesis that antiestrogen-induced accumulation of IGF-BP3 in the conditioned media of MCF7 cells contributes to the cytostatic action of these drugs. Steroids insulin like growth factor binding protein 3 Homo sapiens