microtubule-depolymerizing agents ( demecolcine , colchicine , and vinblastine sulfate ) did not affect 45ca2+ influx , but blocked the ige- or a23187-mediated [ 14c ] -arachidonic acid and histamine release ( e.g. , ic50 for vinblastine sulfate = 10 nm ) .
C0011259
demecolcine
C0009262
colchicine