Figure 4.

Effect of PLA2R1 knockdown on the toxicity of doxorubicin encapsulated in SSL and SPRL in PC-3 cells. PLA2R1 knockdown cells and those expressing scrambled shRNA were treated with 2.5 μM concentrations of Dox encapsulated in SSL or SPRL. MTT assays (A) and phase contrast microscopy at 40× magnification (B) were used to determine the effect of PLA2R1 knockdown on cytotoxicity. Data in panel A are represented as the mean ± SEM of at least three separate experiments (n = 3/study). *Indicates a significant difference (p < 0.05) as compared to cells transfected with scrambled shRNA. Data in panel E are indicative of at least three separate experiments.