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首页> 外文期刊>Growth Factors >Mechanistic investigations into interactions between IGF-I and IGFBPs and their impact on facilitating cell migration on vitronectin.
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Mechanistic investigations into interactions between IGF-I and IGFBPs and their impact on facilitating cell migration on vitronectin.

机译:对IGF-I和IGFBP之间相互作用及其对促进细胞在玻连蛋白上迁移的影响的机理研究。

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摘要

Numerous studies have reported links between insulin-like growth factors (IGFs) and the extra-cellular matrix protein vitronectin (VN). We ourselves have reported that IGF-I binds to VN via IGF-binding proteins (IGFBPs) to stimulate HaCaT and MCF-7 cell migration. Here, we detail the functional evaluation of IGFBP-1, -2, -3, -4 and -6 in the presence and absence of IGF-I and VN. The data presented here, combined with our prior data on IGFBP-5, suggest that IGFBP-3, -4 and -5 are the most effective at stimulating cell migration in combination with IGF-I and VN. In addition, we demonstrate that different regions within IGFBP-3 and -4 are critical for complex formation. Furthermore, we examine whether multi-protein complexes of IGF-I and IGFBPs associated with fibronectin and collagen IV are also able to enhance functional biological responses.
机译:大量研究报告了胰岛素样生长因子(IGF)与细胞外基质蛋白玻连蛋白(VN)之间的联系。我们自己已经报道过,IGF-I通过IGF结合蛋白(IGFBP)与VN结合,从而刺激HaCaT和MCF-7细胞迁移。在这里,我们详细介绍了在存在和不存在IGF-1和VN的情况下IGFBP-1,-2,-3,-4和-6的功能评估。此处提供的数据与我们先前关于IGFBP-5的数据相结合,表明IGFBP-3,-4和-5与IGF-1和VN结合在一起最能有效刺激细胞迁移。此外,我们证明了IGFBP-3和-4内的不同区域对于复合物的形成至关重要。此外,我们检查了IGF-I和IGFBPs与纤连蛋白和胶原蛋白IV相关的多蛋白复合物是否也能够增强功能性生物学反应。

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