Ge JL, Tang J. Paclitaxel loaded polylactide-lecithin nanobubbles: Preparation and antitumor effect after ultrasound-mediated delivery.
Shijie Huaren Xiaohua Zazhi 2015;
23:2098-2103. [DOI:
10.11569/wcjd.v23.i13.2098]
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Abstract
AIM: To prepare paclitaxel loaded polylactide-lecithin nanobubbles and assess their antitumor effect after ultrasound-mediated delivery.
METHODS: Paclitaxel-loaded polylactide (PLA)-lecithin nano-scale bubbles were prepared using the modified ultrasonic double emulsion solvent evaporation technology (UDES). The impact of preparing ultrasonic time and lecithin content on chemical and physical properties of drug-loaded microbubbles (including drug load, particle size, morphology, in vitro release characteristics and encapsulation efficiency) was assessed. Then, the inhibitory effect of the bubbles after ultrasound-mediated delivery on H22 tumors in mice derived from human hepatoma cells was evaluated.
RESULTS: The obtained paclitaxel-loaded PLA-lecithin nano-scale bubbles had a relatively uniform size of around 615 nm, and the drug load rate was 8.26%. The drug entrapment efficiency could reach 90.90%. The drug was amorphously dispersed in the shell of the bubble. The in vitro drug release test showed zero-order release and retained release, which could be speeded up by ultrasound. HepG2 cell only had a proliferation rate of 43.37% ± 3.23% when the paclitaxel concentration was at 10 µg/mL.
CONCLUSION: Ultrasound-mediated delivery of PLA-lecithin nanobubbles might have potential anticancer effects.
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