Dissecting Temporal and Spatial Control of Cytokinesis with a Myosin II Inhibitor
摘要：
Completion of cell division during cytokinesis requires temporally and spatially regulated communication from the microtubule cytoskeleton to the actin cytoskeleton and the cell membrane. We identified a specific inhibitor of nonmuscle myosin II, blebbistatin, that inhibited contraction of the cleavage furrow without disrupting mitosis or contractile ring assembly. Using blebbistatin and other drugs, we showed that exit from the cytokinetic phase of the cell cycle depends on ubiquitin-mediated proteolysis. Continuous signals from microtubules are required to maintain the position of the cleavage furrow, and these signals control the localization of myosin II independently of other furrow components.
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关键词：
Humans Microtubules Hela Cells Heterocyclic Compounds with 4 or More Rings Nocodazole Kinesin Staurosporine Leupeptins Contractile Proteins Enzyme Inhibitors
DOI：
10.1126/science.1081412
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年份：
2003
Wiley
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万方医学
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