Sorafenib loaded pluronic F127-lithocholic acid micelles for prostate cancer therapy: Formulation, optimization, and in vitro evaluation against LNCaP cells

In present study, sorafenib loaded nanomicelles were prepared with synthesized pluronic F127 - lithocholic acid by film hydration method. The optimized micelles were spherical showing particle size of 319.36 nm, zeta potential of -11.96 mV, encapsulation efficiency of 87.31%, loading efficiency of 14.87% and release efficiency of 30.1%. Sorafenib loaded nanomicelles showed negligible hemolysis activity on RBC, indicating excellent hemocompatibility of pluronic F127 - lithocholic acid. The drug free nanomicelles showed no cytotoxicity against L929 cells by using MTT assay. However, micellar sorafenib showed more anti-proliferation effect on LNCaP and DU145 cells as compared with free sorafenib.