Transdominant regulation of integrin function: mechanisms of crosstalk.

Transdominant regulation of integrin function: mechanisms of crosstalk.
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DOI:
10.1016/j.cellsig.2009.10.009
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发表时间:
2010-04
影响因子:
4.8
通讯作者:
Jones JC
Jones JC
中科院分区:
生物学2区
文献类型:
--
作者:
Gonzalez AM;Bhattacharya R;deHart GW;Jones JC

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跨显性抑制整合素或整合素-整合素串扰是整合素配体结合和随后的信号事件的重要调节因子,这些信号事件控制着许多组织中的各种细胞功能。在这里,我们讨论整合素串扰的例子,并详细说明我们目前对涉及这种受体现象的分子机制的理解。细胞骨架相关蛋白talin是整合素串扰的关键调节因子。我们描述了Talin和β整合素的细胞质尾巴之间的相互作用是如何被控制的,以及这种结合的竞争性抑制物如何在整合素串扰中发挥作用。最后,我们讨论了整合素串扰如何影响在实验室和临床环境中对整合素抑制剂和击倒研究的解释。
Transdominant inhibition of integrins or integrin-integrin crosstalk is an important regulator of integrin ligand binding and subsequent signaling events that control a variety of cell functions in many tissues. Here we discuss examples of integrin crosstalk and detail our current understanding of the molecular mechanisms that are involved in this receptor phenomenon. The cytoskeleton associated protein talin is a key regulator of integrin crosstalk. We describe how the interaction of talin and the cytoplasmic tail of β integrin is controlled and how competitive inhibitors of this binding play a role in integrin crosstalk. We conclude with a discussion of how integrin crosstalk impacts the interpretation of integrin inhibitor and knockdown studies in both the laboratory and clinical setting.
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