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Int. J. Mol. Sci. 2012, 13(1), 1109-1125; doi:10.3390/ijms13011109
Article

The Effect of Temozolomide/Poly(lactide-co-glycolide) (PLGA)/Nano-Hydroxyapatite Microspheres on Glioma U87 Cells Behavior

1,†
, 2,†
, 2,* , 2
, 1
 and 1,*
Received: 7 November 2011; in revised form: 20 December 2011 / Accepted: 11 January 2012 / Published: 19 January 2012
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract: 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, αVβ3 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, αVβ3 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.
Keywords: controlled release; glioma; hydroxyapatite; Poly (lactide-co-glycolide) PLGA; temozolomide (TMZ) controlled release; glioma; hydroxyapatite; Poly (lactide-co-glycolide) PLGA; temozolomide (TMZ)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Zhang, D.; Tian, A.; Xue, X.; Wang, M.; Qiu, B.; Wu, A. The Effect of Temozolomide/Poly(lactide-co-glycolide) (PLGA)/Nano-Hydroxyapatite Microspheres on Glioma U87 Cells Behavior. Int. J. Mol. Sci. 2012, 13, 1109-1125.

AMA Style

Zhang D, Tian A, Xue X, Wang M, Qiu B, Wu A. The Effect of Temozolomide/Poly(lactide-co-glycolide) (PLGA)/Nano-Hydroxyapatite Microspheres on Glioma U87 Cells Behavior. International Journal of Molecular Sciences. 2012; 13(1):1109-1125.

Chicago/Turabian Style

Zhang, Dongyong; Tian, Ang; Xue, Xiangxin; Wang, Mei; Qiu, Bo; Wu, Anhua. 2012. "The Effect of Temozolomide/Poly(lactide-co-glycolide) (PLGA)/Nano-Hydroxyapatite Microspheres on Glioma U87 Cells Behavior." Int. J. Mol. Sci. 13, no. 1: 1109-1125.



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