Abstract:
With the advancement of nanotechnology, novel drug delivery systems based on nanomaterials as vehicles have been introduced, having the potential of delivering conventional chemotherapeutic agent selectively to the targeted cancer sites following macromolecular transportation through tumor blood
vessels by means of angiogenesis. In this particular research, a Fe/Fe3O4
nanoparticle based system is constructed by tethering a chemotherapeutic
prodrug of doxorubicin and tumor dopamine units that are located
homing/ uptake peptide sequences to at the Fe3O4 interface of the Fe(0)
nanoparticles. Once the nanoparticles are selectively introduced to the targeted areas, the prodrug is activated due to the acidic environments in the interstitium and (after uptake) the endosome, which causes corrosion of the nanoparticle and release of the drugs and peptide sequences from the nanoparticle's surface. The cytotoxicity of these nanoformulations was tested against murine pancreatic cancer cell lines (Pan02) to assess their therapeutic capabilities for effective treatments of pancreatic cancers. The optimization of the Fe/Fe3O4 nanoparticle based drug delivery system and its therapeutic effects was carried out using a statistical analysis method known as response surface methodology.
