Figure 4From: Paclitaxel and etoposide co-loaded polymeric nanoparticles for the effective combination therapy against human osteosarcoma In vitro cytotoxicity of free PTX, free ETP, free PTX/ETP, and PTX-ETP/PLGA NP against MG63 (A, B) Saos-2 cells (C, D) incubated for 24 and 48 h. The cytotoxicity of formulations was evaluated by MTT assay. The data are presented as mean ± SD (n = 6).Back to article page