ABT-751

Definition / meaning of ABT-751

An orally bioavailable antimitotic sulfonamide. ABT-751 binds to the colchicine-binding site on beta-tubulin and inhibits the polymerization of microtubules, thereby preventing tumor cell replication. This agent also disrupts tumor neovascularization, reducing tumor blood flow and so inducing a cytotoxic effect.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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