Improved anti-tumor efficiency against prostate cancer by docetaxel-loaded PEG-PCL micelles / 华中科技大学学报(医学)(英德文版)
Journal of Huazhong University of Science and Technology (Medical Sciences)
;
(6): 66-75, 2014.
Article
Dans Anglais
| WPRIM
| ID: wpr-251359
ABSTRACT
This study primarily focused on the systematic assessment of both in vitro and in vivo anti-tumor effects of docetaxel-loaded polyethylene glycol (PEG)2000-polycaprolactone (PCL)2600 micelles on hormone-refractory prostate cancer (HRPC). By using solvent evaporation method, PEG-PCL was chosen to prepare doxetaxel (DTX)-loaded mPEG-PCL micelles (DTX-PMs), with the purpose of eliminating side effects of the commercial formulation (Tween 80) and prolonging the blood circulation time. The prepared DTX-PMs had an average particle size of 25.19±2.36 nm, a zeta potential of 0.64±0.15 mV, a polydispersity index of 0.56±0.03, a drug loading of (8.72±1.05)%, and an encapsulation efficiency of (98.1±8.4)%. In vitro cytotoxicity studies indicated that DTX-PMs could effectively kill LNCap-C4-2B cells and show a dose- and time-dependent efficacy. The hemolysis test showed that DTX-PMs had less hemocytolysis than the commercial product of Duopafei®. A sustained in vitro release behavior and prolonged circulation time in blood vessels were observed in the DTX-PMs. Furthermore, when compared with Duopafei®, the DTX-PMs dramatically reduced the prostate specific antigen (PSA) level and tumor growth of prostate tumor-bearing nude mice in vivo. In conclusion, the DTX-PMs can lower systemic side effects, improve anti-tumor activity with prolonged blood circulation time, and will bring an alternative to patients with HRPC.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Taille de particule
/
Anatomopathologie
/
Pharmacologie
/
Polyesters
/
Polyéthylène glycols
/
Tumeurs de la prostate
/
Pharmacocinétique
/
Survie cellulaire
/
Chimie
/
Résultat thérapeutique
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Journal of Huazhong University of Science and Technology (Medical Sciences)
Année:
2014
Type:
Article
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