Digging a little deeper: the stages of invadopodium formation and maturation.

Digging a little deeper: the stages of invadopodium formation and maturation.
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深入挖掘:侵袭性形成和成熟的阶段。

DOI:
10.1016/j.ejcb.2014.07.003
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发表时间:
2014-10
影响因子:
6.6
通讯作者:
Condeelis, John
Condeelis, John
中科院分区:
生物学3区
文献类型:
--
作者:
Beaty, Brian T.;Condeelis, John

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侵袭伪足是富含肌动蛋白的突起,可降解细胞外基质,是穿透基底膜、基质侵袭和内渗所必需的。侵袭伪足富含肌动蛋白调节因子,例如 cortactin、cofilin、N-WASp、Arp2/3 和肌成束蛋白。迄今为止的大部分工作都集中在识别参与调节肌动蛋白聚合和基质降解的蛋白质。最近,在入侵伪足前体组装的早期阶段的表征以及粘附蛋白(如 β1 整合素、talin、FAK 和 Hic-5)在促进入侵伪足成熟中的作用方面取得了重大进展。这篇综述在我们当前的侵袭足功能模型的背景下总结了这些发现,并强调了该领域一些尚未解答的重要问题。
Invadopodia are actin-rich protrusions that degrade the extracellular matrix and are required for penetration through the basement membrane, stromal invasion and intravasation. Invadopodia are enriched in actin regulators, such as cortactin, cofilin, N-WASp, Arp2/3 and fascin. Much of the work to date has centered around identifying the proteins involved in regulating actin polymerization and matrix degradation. Recently, there have been significant advances in characterization of the very early stages of invadopodium precursor assembly and the role of adhesion proteins, such as β1 integrin, talin, FAK and Hic-5, in promoting invadopodium maturation. This review summarizes these findings in the context of our current model of invadopodial function and highlights some of the important unanswered questions in the field.
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