期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 13, 期 1, 页码 1109-1125出版社
MDPI
DOI: 10.3390/ijms13011109
关键词
controlled release; glioma; hydroxyapatite; Poly (lactide-co-glycolide) PLGA; temozolomide (TMZ)
资金
- foundation of National Natural Science Foundation of China [50872019]
In this study, we investigated the effects of temozolomide (TMZ)/Poly (lactide-co-glycolide)(PLGA)/nano-hydroxyapatite microspheres on the behavior of U87 glioma cells. The microspheres were fabricated by the Solid/Water/Oil method, and they were characterized by using X-Ray diffraction, scanning electron microscopy and differential scanning calorimetry. The proliferation, apoptosis and invasion of glioma cells were evaluated by MTT, flow cytometry assay and Transwell assay. The presence of the key invasive gene, alpha(V)beta 3 integrin, was detected by the RT-PCR and Western blot method. It was found that the temozolomide/PLGA/nano-hydroxyapatite microspheres have a significantly diminished initial burst of drug release, compared to the TMZ laden PLGA microspheres. Our results suggest they can significantly inhibit the proliferation and invasion of glioma cells, and induce their apoptosis. Additionally, alpha(V)beta 3 integrin was also reduced by the microspheres. These data suggest that by inhibiting the biological behavior of glioma cells in vitro, the newly designed temozolomide/PLGA/nano-hydroxyapatite microspheres, as controlled drug release carriers, have promising potential in treating glioma.
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