Preparation and in vitro evaluation of doxorubicin-loaded magnetic iron oxide nanoparticles.
- Author:
Song SHEN
;
Lin WU
;
Cheng-Run WANG
;
Xue-Yong QI
;
Yan-Ru GE
;
Yi JIN
- Publication Type:Journal Article
- MeSH:
Antibiotics, Antineoplastic;
administration & dosage;
pharmacology;
Cell Survival;
drug effects;
Doxorubicin;
administration & dosage;
pharmacology;
Drug Carriers;
Ferrosoferric Oxide;
chemistry;
Humans;
Hyperthermia, Induced;
MCF-7 Cells;
Magnetite Nanoparticles;
chemistry;
Particle Size;
Polyethylene Glycols;
chemistry
- From:
Acta Pharmaceutica Sinica
2013;48(12):1844-1849
- CountryChina
- Language:Chinese
-
Abstract:
PEG-modified magnetic Fe3O4 (Fe3O4-PEG) nanoparticles were sythesized using a solvothermal reaction and characterized with transmission electron microscopy (TEM) and thermo gravimetric analysis (TGA). The photothermal effect and photothermal destruction of cancer cells were evaluated. Then the doxorubicin loaded Fe3O4-PEG (DOX-Fe3O4-PEG) nanoparticles were prepared. The cytotoxicity and combined chemotherapy/photothermal therapy (PTT) effect were investigated. Uniform PEG coated Fe3O4 nanoparticles with particle size of 155 nm were obtained in the experiment. The loading and release of doxorubicin on Fe3O4-PEG were pH-dependent. The drug loading capacity in water was 21%. The results of MTT indicated a good biocompatiblity of Fe3O4-PEG nanoparticles and high cytotoxicity of DOX-Fe3O4-PEG. In combined therapy experiment, photothermal therapy demonstrated unambiguously enhanced chemotherapy efficacy. In conclusion, the obtained Fe3O4-PEG nanoparticles which exhibit good photothermal effect and drug loading capacity can be used for chemotherapy and photothermal therapy. The synergetic anti-tumor activity indicates the potential for the combined application of chemotherapy and photothermal therapy in cancer treatment.
