Figure 6From: Neutral sphingomyelinase 2 modulates cytotoxic effects of protopanaxadiol on different human cancer cells PPD sensitized cancer cells to doxorubicin treatment. K562 (A and B) and HT29 (C and D) cells were exposed to Cisplatin (A and C) or PPD (B and D) at 0, 25 and 50 μM in presence of 0, 0.25, 1.0 or 2.5 μM Doxorubicin for 48 hr. All experiments were repeated three times with similar results.Back to article page