期刊
CURRENT OPINION IN CELL BIOLOGY
卷 56, 期 -, 页码 7-13出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.ceb.2018.08.003
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类别
资金
- Human Frontiers Science Program Organization [RGP0005/2016]
- academy of Finland Centre of Excellence [272130]
The actin cytoskeleton is indispensable for several cellular processes, including migration, morphogenesis, polarized growth, endocytosis, and phagocytosis. The organization and dynamics of the actin cytoskeleton in these processes are regulated by Rho family small GTPases and kinase-phosphatase pathways. Moreover, membrane phospholipids, especially the phosphatidylinositol phosphates have emerged as important regulators of actin dynamics. From these, PI(4,5)P-2 is the most abundant at the plasma membrane, and directly regulates the activities and subcellular localizations of numerous actin-binding proteins. Here, we discuss recent studies demonstrating that actin-binding proteins interact with PI(4,5)P-2-rich membranes through drastically different affinities and dynamics correlating with their roles in cytoskeletal dynamics. Moreover, by using mesenchymal cell migration and clathrin-mediated endocytosis as examples, we present a model for how interplay between PI(4,5)P-2 and actin-binding proteins control the actin cytoskeleton in cells.
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