Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556-0369, USA.
Semin Cell Dev Biol. 2011 Feb;22(1):39-47. doi: 10.1016/j.semcdb.2010.09.002. Epub 2010 Sep 15.
A wide range of cellular activities depends upon endocytic recycling. ARF6, a small molecular weight GTPase, regulates the processes of endocytosis and endocytic recycling in concert with various effector molecules and other small GTPases. This review highlights three critical processes that involve ARF6-mediated endosomal membrane trafficking-cell motility, cytokinesis, and cholesterol homeostasis. In each case, the function of ARF6-mediated trafficking varies-including localization of specific protein and lipid cargo, regulation of bulk membrane movement, and modulation of intracellular signaling. As described in this review, mis-regulation of endocytic traffic can result in human disease when it compromises the cell's ability to regulate cell movement and invasion, cell division, and lipid homeostasis.
广泛的细胞活动依赖于内吞作用的回收。ARF6,一种小分子 GTPase,与各种效应分子和其他小 GTPase 一起协调内吞作用和内吞作用的回收过程。这篇综述强调了涉及 ARF6 介导的内体膜运输的三个关键过程-细胞运动、胞质分裂和胆固醇稳态。在每种情况下,ARF6 介导的运输的功能都不同-包括特定蛋白质和脂质货物的定位、大块膜运动的调节以及细胞内信号的调节。正如本文综述所述,当内吞作用的运输受到影响,从而损害细胞调节细胞运动和侵袭、细胞分裂和脂质稳态的能力时,内吞作用的运输会导致人类疾病。