Palytoxins and cytoskeleton: An overview

被引:23
作者
Carmen Louzao, M. [1 ]
Ares, Isabel R. [1 ]
Cagide, Eva [1 ]
Espina, Begona [1 ]
Vilarino, Natalia [1 ]
Alfonso, Amparo [1 ]
Vieytes, Mercedes R. [2 ]
Botana, Luis M. [1 ]
机构
[1] Univ Santiago de Compostela, Dept Farmacol, Fac Vet, Lugo 27002, Spain
[2] Univ Santiago de Compostela, Dept Fisiol, Fac Vet, Lugo 27002, Spain
关键词
Actin; Cytoskeleton; Microtubules; Ostreocin-D; Palytoxin; Ovatoxin-a; NA/K PUMP-CHANNELS; ACTIN CYTOSKELETON; OSTREOCIN-D; F-ACTIN; MOLECULAR-MECHANISMS; BINDING PROTEINS; OKADAIC ACID; CELLS; MEMBRANE; CALCIUM;
D O I
10.1016/j.toxicon.2010.09.017
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Cytoskeleton is a dynamic structure essential for a wide variety of normal cellular processes, including the maintenance of cell shape and morphology, volume regulation, membrane dynamics and signal transduction. Cytoskeleton is organized into microtubules, actin meshwork and intermediate filaments. Actin has been identified as a major target for destruction during apoptosis and is also important under pathological conditions such as cancers. Several natural compounds actively modulate actin organization by specific signaling cascades being useful tools to study cytoskeleton dynamics. Palytoxin is a large bioactive compound, first isolated from zoanthids, with a complex structure and different analogs such as ostreocin-D or ovatoxin-a. This toxin has been identified as a potent tumor promoter and cytotoxic molecule, which leads to actin filament distortion and triggers cell death or apoptosis. In this review we report the findings on the involvement of palytoxin and analogues modulating the actin cytoskeleton within different cellular models. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:460 / 469
页数:10
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