期刊
JOURNAL OF CELLULAR BIOCHEMISTRY
卷 98, 期 1, 页码 102-114出版社
WILEY-LISS
DOI: 10.1002/jcb.20758
关键词
microtubule; centrosome; mitosis; cell cycle
Microtubule drugs, which block cell cycle progression through mitosis, have seen widespread use in cancer chemotherapies. Although microtubules are subject to regulation by signal transduction mechanisms, their pharmacological modulation has so far relied on compounds that bind to the tubulin subunit. A new microtubule pharmacophore, diphenyleneiodonium, causing disassembly of the microtubule cytoskeleton is described here. Although this synthetic compound does not affect the assembly state of purified microtubules, it profoundly suppresses microtubule assembly in vivo, causes paclitaxel-stabilized microtubules to cluster around the centrosomes, and selectively disassembles dynamic microtubules. Similar to other microtubule drugs, this new pharmacophore blocks mitotic spindle assembly and mitotic cell division.
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