when primary baby mouse skin ( bms ) cultures were subcultured for 48 hours into media containing 10 ( -6 ) to 10 ( -7 ) m colchicine or demecolcine , the number of altered cell foci appearing after 3-4 weeks ' maintenance at 36 degrees c was substantially enhanced over drug-free controls .
C0009262
colchicine
C0011259
demecolcine