Bimolecular Interaction of Insulin-Like Growth Factor (IGF) Binding Protein-2 with αvβ3 Negatively Modulates IGF-I-Mediated Migration and Tumor Growth

Abstract excerpt

Both the integrin and insulin-like growth factor binding protein (IGFBP) families independently play important roles in modulating tumor cell growth and progression. We present evidence for a specific cell surface localization and a bimolecular interaction between the alpha v beta 3 integrin and IGFBP-2. The interaction, which could be specifically perturbed using vitronectin and alpha v beta 3 blocking...

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