Title : Insulin-like growth factor binding protein 3 has opposing actions on malignant and nonmalignant breast epithelial cells that are each reversible and dependent upon cholesterol-stabilized integrin receptor complexes.

Pub. Date : 2006 Jul

PMID : 16614079






4 Functional Relationships(s)
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Protein Name
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1 Insulin-like growth factor binding protein 3 has opposing actions on malignant and nonmalignant breast epithelial cells that are each reversible and dependent upon cholesterol-stabilized integrin receptor complexes. Cholesterol insulin like growth factor binding protein 3 Homo sapiens
2 IGFBP-3 also promoted survival of Hs578T cells in the presence of an antibody to the beta1-integrin subunit or when cholesterol-stabilized complexes were disrupted. Cholesterol insulin like growth factor binding protein 3 Homo sapiens
3 In contrast, IGFBP-3 promoted growth and survival for nonmalignant MCF-10A cells, but these effects were again reversed on fibronectin and blocked by the beta1 antibody or a MAPK inhibitor or by disruption of cholesterol-stabilized complexes. Cholesterol insulin like growth factor binding protein 3 Homo sapiens
4 In summary, with three breast epithelial cell lines, IGFBP-3 had positive or negative effects on growth and survival dependent upon the status of cholesterol-stabilized integrin receptor complexes. Cholesterol insulin like growth factor binding protein 3 Homo sapiens