Fig. 4

Cytotoxicity and anti-proliferation abilities of TP-GQDss, Enz and TP-GQDss/Enz. a Cytotoxicity of TP-GQDss in C4-2B and LNCaP cells in 48 h, mean ± SD (n = 3); b, c dose dependent in vitro anti-proliferation effect of TP-GQDss/Enz in C4-2B and LNCaP cells for 48 h, mean ± SD (n = 3); d apoptosis analysis of LNCaP and C4-2B cells treated with different formulations for 24 h; e, f Quantitative analysis of cell apoptosis in C4-2B and LNCaP cells, mean ± SD (n = 3)