Desmosome assembly and dynamics.

Desmosome assembly and dynamics.
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DOI:
10.1016/j.tcb.2013.06.004
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发表时间:
2013-11
影响因子:
19
通讯作者:
Green, Kathleen J.
Green, Kathleen J.
中科院分区:
生物学1区
文献类型:
--
作者:
Nekrasova, Oxana;Green, Kathleen J.

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桥粒是细胞间的连接点,将中间纤维固定在质膜上,形成细胞上的支架,为组织提供机械弹性。这种锚定功能是由钙粘蛋白家族的特殊成员和相关的细胞骨架连接蛋白完成的,它们共同形成一个高度组织的膜核,两侧是镜像细胞质斑块。由于桥粒的生化不溶性,控制这些成分组装成功能性细胞器的机制仍然难以捉摸。最近开发的分子报告和活细胞成像方法提供了强大的新工具来实时监测这一精细调整的过程。在这里,我们讨论了一些研究,这些研究开始破译桥粒组装和原位稳态的机制和调控,以及这些机制在疾病发病过程中如何受到影响。
Desmosomes are intercellular junctions that anchor intermediate filaments to the plasma membrane, forming a supracellular scaffold that provides mechanical resilience to tissues. This anchoring function is accomplished by specialized members of the cadherin family and associated cytoskeletal linking proteins, which together form a highly organized membrane core flanked by mirror image cytoplasmic plaques. Due to the biochemical insolubility of desmosomes, the mechanisms that govern assembly of these components into a functional organelle remained elusive. Recently developed molecular reporters and live cell imaging approaches have provided powerful new tools to monitor this finely-tuned process in real time. Here we discuss studies that are beginning to decipher the machinery and regulation governing desmosome assembly and homeostasis in situ, and how these mechanisms are affected during disease pathogenesis.
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发表时间: 2010
影响因子: --
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