Induction of apoptosis by DAS treatment in cells overexpressing ABCB1 transporter. * denotes significant change in the number of apoptotic cells (P<0.05) between resistant K562/Dox and K562/DoxDR1 cells treated with DAS and DAS+ZSQ.  
  Part of: Mlejnek P, Dolezel P, Ruzickova E (2017) Drug resistance of cancer cells is crucially affected by expression levels of ABC-transporters. BioDiscovery 20: e11211.