Solid lipid nanoparticles containing tamoxifen. Characterization and in vitro antitumoral activity
- Autori: Fontana, G.; Maniscalco, L.; Schillaci, D.; Cavallaro, G.; Giammona, G.
- Anno di pubblicazione: 2005
- Tipologia: Articolo in rivista
- Parole Chiave: Colloidal Drug Delivery Systems, Solid Lipid Nanoparticles (SLNs), Tamoxifen
- OA Link: http://hdl.handle.net/10447/14618
Solid lipid nanoparticles (SLNs) containing tamoxifen, a nons- teroidal antiestrogen used in breast cancer therapy, were prepared by microemulsion and precipitation techniques. Tamoxifen loaded SLNs seem to have dimensional properties useful for parenteral administration, and in vitro plasmatic drug release studies demon- strated that these systems are able to give a prolonged release of the drug in the intact form. Preliminary study of antiproliferative ac- tivity in vitro, carried out on MCF-7 cell line (human breast cancer cells), demonstrated that SLNs, containing tamoxifen showed an antitumoral activity comparable to free drug. The results of char- acterization studies and of in vitro antiproliferative activity strongly support the potential application of tamoxifen-loaded SLNs as a carrier system at prolonged release useful for intravenous admin- istration in breast cancer therapy.