Characterization of the Doxorubicin-Pluronic F68 Conjugate Micelles and Their Effect on Doxorubicin Resistant Human Erythroleukemic Cancer Cells
| Autor: | Lu Zhang, Cui-Tao Lu, Xiaokun Li, Chang-Zheng Sun, Dan-Dan Dai, Xing Li, Ying-Zheng Zhao, Guo Ping, Ji-Lai Tian, Hai-Feng Lv |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
organic chemicals Cell technology industry and agriculture Biomedical Engineering Pharmaceutical Science Medicine (miscellaneous) Bioengineering Nanotechnology macromolecular substances Micelle In vitro carbohydrates (lipids) medicine.anatomical_structure Differential scanning calorimetry Cancer cell polycyclic compounds medicine Biophysics Doxorubicin medicine.drug Conjugate K562 cells |
| Zdroj: | Journal of Nanomedicine & Nanotechnology. |
| ISSN: | 2157-7439 |
| DOI: | 10.4172/2157-7439.1000114 |
| Popis: | Doxorubicin-pluronic F68 conjugate (DOX-P) was synthesized and its structure was confirmed by FTIR and 1H-NMR spectra. Using human erythroleukemic cancer cells as model, DOX-P application in chemotherapy was further investigated. Differential scanning calorimetry analysis was applied to compare the fusion and crystallization characterization between pluronic F68 and DOX-P. Morphology and size assessment were measured using a transmission electron microscopy (TEM) to confirm the capability of forming micelles of DOX-P. Tumor cell lines K562 and K562/AO2 were used to investigate the effect of DOX-P on tumor cell resistance. The Tm and Tc of DOX-P were lower than pluronic F68 resulted from the connection of DOX to pluronic F68. Morphology images confirmed the existence of DOX-P micelles, with an average size of about 20 nm. Drug release profile showed that the DOX-P conjugate maintained a sustained DOX release. From cell experiment in vitro, DOX-P micelles could circumvent the DOX resistance of K562/AO2 cells. With advantages of EPR effect and reducing tumor resistance, DOX-P micelles might develop as new tumor targeted delivery system for chemotherapy. |
| Databáze: | OpenAIRE |
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