Abstract
Introduction: Herceptin is an expensive humanized antibody used for the treatment of early-stage breast cancers. This antibody can cause cardiotoxicity in some patients. In this study, we evaluated the possibility of increasing the therapeutic efficacy of Herceptin by combining magnetic nanoparticles and a permanent magnet for more accumulation in the tumor site.
Methods: Herceptin magnetic nanoparticles (HMNs) were synthesized and some of their characteristics, such as stability, magnetization, particle size by transmission electron microscopy (TEM), and dynamic light scattering (DLS) technique, were measured. The biodistribution study was checked in mice bearing breast tumor with and without a permanent magnet on the position of the tumor. The therapeutic effects of HMNs were considered in this condition.
Results: The size distribution of HMNs determined by the DLS technique was 182±7 nm and the average size by TEM was 100±10 nm. The reductions of 81% and 98% in the mean tumor volume for the group that received HMNs with magnetic field were observed at 42 and 45 days after injection, respectively.
Conclusion: The good results in mice indicated that Herceptin-loaded iron oxide nanoparticles with external magnetic field have good potential for use in humans as a targeted drug delivery that needs more investigation.
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©2015 by De Gruyter
Articles in the same Issue
- Frontmatter
- Editorial
- Magnetic nanoparticles for biomedical applications
- Special issue articles
- Biomedical applications of high gradient magnetic separation: progress towards therapeutic haeomofiltration
- Magnetic nanoparticles adapted for specific biomedical applications
- Degradation of magnetic nanoparticles mimicking lysosomal conditions followed by AC susceptibility
- Magnetorelaxometry procedures for quantitative imaging and characterization of magnetic nanoparticles in biomedical applications
- Magnetic relaxometry as applied to sensitive cancer detection and localization
- Extended arrays for nonlinear susceptibility magnitude imaging
- Magnetic nanoparticles for magnetic drug targeting
- Fluid mechanics aspects of magnetic drug targeting
- The possibility of using magnetic nanoparticles to increase the therapeutic efficiency of Herceptin antibody
- Computational evaluation of amplitude modulation for enhanced magnetic nanoparticle hyperthermia
- Means to increase the therapeutic efficiency of magnetic heating of tumors
Articles in the same Issue
- Frontmatter
- Editorial
- Magnetic nanoparticles for biomedical applications
- Special issue articles
- Biomedical applications of high gradient magnetic separation: progress towards therapeutic haeomofiltration
- Magnetic nanoparticles adapted for specific biomedical applications
- Degradation of magnetic nanoparticles mimicking lysosomal conditions followed by AC susceptibility
- Magnetorelaxometry procedures for quantitative imaging and characterization of magnetic nanoparticles in biomedical applications
- Magnetic relaxometry as applied to sensitive cancer detection and localization
- Extended arrays for nonlinear susceptibility magnitude imaging
- Magnetic nanoparticles for magnetic drug targeting
- Fluid mechanics aspects of magnetic drug targeting
- The possibility of using magnetic nanoparticles to increase the therapeutic efficiency of Herceptin antibody
- Computational evaluation of amplitude modulation for enhanced magnetic nanoparticle hyperthermia
- Means to increase the therapeutic efficiency of magnetic heating of tumors