Fig. 4.
Trivalent antimonials induce apoptosis of APL cells. Untreated NB4 cells (A) or cells treated for 24 hours with either 1 μmol/L As2O3 (B), 1 μmol/L Sb2O3 (C), or 1 μmol/L PAT (D) were bound to poly-Lysine treated coverslips, fixed and stained with Hoechst 33258. Apoptotic cells show chromatin condensation and micronuclei.