(a) Schematic diagram of PLGA NP for ratiometric co-delivery of GMP and
cisplatin. (b) Tumor inhibition effects of free drugs, Combo free (cocktails of
free drugs), cisplatin NP, GMP NP, Sepa NP (cocktails of single drug
NP), and Combo NP in a stroma-rich UMUC3 bladder cancer
xenograft model. Arrows indicate time of injection. The tumors were treated with
three IV injections at a dose of 1.9 mg/kg cisplatin and 12 mg/kg GMP in all the
treatment groups. Reprinted with permission from [7]. Copyright (2014) John Wiley and Sons.