Apoptotic percentages of K562 cells cultivated in different media. (A), SCG-N, K562 cells cultivated in DF-12 with 10%FBS. (B), SCG-S, K562 cells cultivated without FBS. (C), K562 cells in CCG-S+MSCs+LY294002 group were pretreated with 10 μM LY294002 for 1 hr then cocultured with MSCs in DF-12 media without FBS. (D), CCG-S+MSCs, K562 cells cultivated with MSCs in the present of FBS-free medium.
Wei et al. Journal of Experimental & Clinical Cancer Research 2009 28:141 doi:10.1186/1756-9966-28-141