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Magnetic Nanosystem for Cancer Therapy Using Oncocalyxone A,an Antitomour Secondary Metabolite Isolated from a Brazilian Plant
Authors:Ant?nio C H Barreto  Vivian R Santiago  Rafael M Freire  Selma E Mazzetto  Juliano C Denardin  Giuseppe Mele  Igor M Cavalcante  Maria E N P Ribeiro  Nágila M P S Ricardo  Tamara Gon?alves  Luigi Carbone  Telma L G Lemos  Otília D L Pessoa  Pierre B A Fechine
Abstract:This paper describes the investigation and development of a novel magnetic drug delivery nanosystem (labeled as MO-20) for cancer therapy. The drug employed was oncocalyxone A (onco A), which was isolated from Auxemma oncocalyx, an endemic Brazilian plant. It has a series of pharmacological properties: antioxidant, cytotoxic, analgesic, anti-inflammatory, antitumor and antiplatelet. Onco A was associated with magnetite nanoparticles in order to obtain magnetic properties. The components of MO-20 were characterized by XRD, FTIR, TGA, TEM and Magnetization curves. The MO-20 presented a size of about 30 nm and globular morphology. In addition, drug releasing experiments were performed, where it was observed the presence of the anomalous transport. The results found in this work showed the potential of onco A for future applications of the MO-20 as a new magnetic drug release nanosystem for cancer treatment.
Keywords:drug delivery  cancer therapy  magnetic nanoparticles  oncocalyxone A
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