Pharmaceutical formulation of HSA hybrid coated iron oxide nanoparticles for magnetic drug targeting

Autor: Geoffrey Lee, Ralph Heimke-Brinck, Marina Pöttler, Harald Mangge, Jan Zaloga, Frank Dörje, Christoph Alexiou, Rainer Tietze, Eva Baum, Stefan Lyer, Ralf P Friedrich, Gerd Leitinger, Gunter Almer
Rok vydání: 2016
Předmět:
Zdroj: European Journal of Pharmaceutics and Biopharmaceutics. 101:152-162
ISSN: 0939-6411
Popis: In this work we present a new formulation of superparamagnetic iron oxide nanoparticles (SPIONs) for magnetic drug targeting. The particles were reproducibly synthesized from current good manufacturing practice (cGMP) - grade substances. They were surface coated using fatty acids as anchoring molecules for human serum albumin. We comprehensively characterized the physicochemical core-shell structure of the particles using sophisticated methods. We investigated biocompatibility and cellular uptake of the particles using an established flow cytometric method in combination with microwave-plasma assisted atomic emission spectroscopy (MP-AES). The cytotoxic drug mitoxantrone was adsorbed on the protein shell and we showed that even in complex media it is slowly released with a close to zero order kinetics. We also describe an in vitro proof-of-concept assay in which we clearly showed that local enrichment of this SPION-drug conjugate with a magnet allows site-specific therapeutic effects.
Databáze: OpenAIRE