Trans-Compartmental Regulation of Tight Junction Barrier Function.

Trans-Compartmental Regulation of Tight Junction Barrier Function.
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DOI:
10.1080/21688370.2022.2133880
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发表时间:
2023-10-02
期刊:
影响因子:
3.1
通讯作者:
Chen, Yan-Hua
Chen, Yan-Hua
中科院分区:
其他
文献类型:
--
作者:
Naser, Amna N.;Lu, Qun;Chen, Yan-Hua

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紧密连接(Tight junction, TJs)是上皮细胞和内皮细胞中连接复合物最顶端的组成部分。屏障功能是TJ的主要功能之一,它限制离子和小水溶性分子通过细胞旁通路。粘附连接(AJs)在细胞-细胞粘附和细胞信号传导中起着重要作用。间隙连接(GJs)是调节细胞间电信号和代谢信号的细胞间通道。众所周知,TJ整体膜蛋白,如claudin和occludin,是负责TJ屏障功能的分子构建块。然而,最近的研究表明,其他连接复合物的蛋白质可以影响和调节TJ屏障功能。因此,不同细胞连接之间的串扰是调节细胞活动的一种共同手段。在这篇综述中,我们将重点讨论AJ和GJ蛋白在不同生物系统中如何调节TJ屏障功能,从而讨论TJ、AJ和GJ之间的相互作用。
Tight junctions (TJs) are the most apical components of junctional complexes in epithelial and endothelial cells. Barrier function is one of the major functions of TJ, which restricts the ions and small water-soluble molecules from passing through the paracellular pathway. Adherens junctions (AJs) play an important role in cell–cell adhesion and cell signaling. Gap junctions (GJs) are intercellular channels regulating electrical and metabolic signals between cells. It is well known that TJ integral membrane proteins, such as claudins and occludins, are the molecular building blocks responsible for TJ barrier function. However, recent studies demonstrate that proteins of other junctional complexes can influence and regulate TJ barrier function. Therefore, the crosstalk between different cell junctions represents a common means to modulate cellular activities. In this review, we will discuss the interactions among TJ, AJ, and GJ by focusing on how AJ and GJ proteins regulate TJ barrier function in different biological systems.
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