Abstract
Background: Targeted drug delivery is one of the recent hot topics in cancer therapy. Because of having a targeting potential under the magnetic field and a suitable surface for the attachment of different therapeutic moieties, magnetic nanoparticles are widely studied for their applications in medicine.
Objective: Gemcitabine loaded polyhydroxybutyrate coated magnetic nanoparticles (Gem-PHB-MNPs) were synthesized and characterized for the treatment of breast cancer by the targeted drug delivery method.
Methods: The characterization of nanoparticles was confirmed by FTIR, XPS, TEM, and spectrophotometric analyses. The cytotoxicities of drug-free nanoparticles and Gemcitabine loaded nanoparticles were determined with cell proliferation assay using SKBR-3 and MCF-7 breast cancer cell lines.
Results: The release of Gemcitabine from PHB-MNPs indicated a pH-dependent pattern, which is a desirable release characteristic, since the pH of the tumor microenvironment and endosomal structures are acidic, while bloodstream and healthy-tissues are neutral. Drug-free PHB-MNPs were not cytotoxic to the SKBR-3 and MCF- 7 cells, whereas the Gemcitabine loaded PHB-MNPs was about two-fold as cytotoxic with respect to free Gemcitabine. In vitro targeting ability of PHB-MNPs was shown under the magnetic field.
Conclusion: Considering these facts, we may suggest that these nanoparticles can be a promising candidate for the development of a novel targeted drug delivery system for breast cancer.
Keywords: Polyhydroxybutyrate, magnetic nanoparticles, gemcitabine, breast cancer, SKBR-3, MCF-7, targeting drug delivery.
Graphical Abstract
[http://dx.doi.org/10.1016/S0065-2571(00)00013-3] [PMID: 11384745]
[http://dx.doi.org/10.1016/j.addr.2008.03.018] [PMID: 18558452]
[http://dx.doi.org/10.1016/S1734-1140(12)70901-5] [PMID: 23238461]
[http://dx.doi.org/10.1016/j.progpolymsci.2017.05.002]
[http://dx.doi.org/10.1016/j.porgcoat.2017.10.007]
[http://dx.doi.org/10.1002/app.47233]
[http://dx.doi.org/10.1016/j.biomaterials.2003.12.029] [PMID: 15110478]
[http://dx.doi.org/10.1016/j.biortech.2013.01.106] [PMID: 23415943]
[http://dx.doi.org/10.1016/S0168-1656(00)00409-0] [PMID: 11245902]
[http://dx.doi.org/10.1016/j.biortech.2015.11.046] [PMID: 26684174]
[http://dx.doi.org/10.1128/MMBR.54.4.450-472.1990] [PMID: 2087222]
[http://dx.doi.org/10.1088/1748-605X/aad139] [PMID: 29974870]
[http://dx.doi.org/10.1016/S0169-409X(01)00218-6] [PMID: 11733115]
[http://dx.doi.org/10.2174/138161208784246216] [PMID: 18473859]
[http://dx.doi.org/10.1517/14796694.1.1.7] [PMID: 16555971]
[http://dx.doi.org/10.1016/j.biomaterials.2014.04.026] [PMID: 24797878]
[http://dx.doi.org/10.1053/j.gastro.2008.09.067] [PMID: 18992248]
[http://dx.doi.org/10.1163/156856209X410283] [PMID: 20040158]
[http://dx.doi.org/10.1016/j.ijpharm.2016.10.015] [PMID: 27725272]
[http://dx.doi.org/10.1016/j.ejphar.2016.05.016] [PMID: 27181067]
[http://dx.doi.org/10.1097/MJT.0000000000000066] [PMID: 25137407]
[http://dx.doi.org/10.1155/2009/571702] [PMID: 19789653]
[http://dx.doi.org/10.1016/0169-409X(95)00092-L]
[http://dx.doi.org/10.1146/annurev-pharmtox-010611-134623] [PMID: 22035254]
[http://dx.doi.org/10.1016/j.nantod.2009.07.001] [PMID: 20161038]
[http://dx.doi.org/10.1186/2191-219X-2-39] [PMID: 22809406]
[http://dx.doi.org/10.2217/nnm.16.5] [PMID: 27003448]