Ling Zhao1, Yun Ye, Juan Li, Yu-meng Wei. 1. Department of Pharmaceutics, School of Pharmacy, Luzhou Medical College, Zhongshan Road, Luzhou, Sichuan Province, China.
Abstract
OBJECTIVES: The aim of this study was to develop paclitaxel liposomes for a lung targeting delivery system. METHODS: The liposomes composed of Tween-80/HSPC/cholesterol (0.03 : 3.84 : 3.84, mol/mol), containing paclitaxel and lipids (1 : 40, mol/mol), were prepared by a combination of solid dispersion and effervescent techniques, and then subjected to ultrasonication. The pharmacokinetics and biodistribution of liposomal and injectable formulation of paclitaxel in dogs were studied after intravenous administration. KEY FINDINGS: The mean diameter, polydispersity index, zeta-potential and entrapment efficiency of the liposomes were 501.60 ± 15.43 nm, 0.28 ± 0.02, -20.93 ± 0.06 mV and 95.17 ± 0.32%, respectively. The liposomal formulation kept stable for at least 3 months at 6 ± 2°C and didn't cause haemolysis. The liposome carrier decreased the area under the curve and terminal half-life of paclitaxel compared with paclitaxel injection ranging from 0.352 ± 0.031 mg/l*h and 0.0671 ± 0.144 h to 0.748 ± 0.062 mg/l*h and 1.978 ± 0.518 h, respectively. The paclitaxel liposomes produced a drug concentration in the lung that was markedly higher than that in other organs or tissues and was about 15-fold of that of paclitaxel injection at 2 h. CONCLUSIONS: To sum up, these results demonstrated that the paclitaxel liposomes are an effective lung targeted carrier in the treatment of lung cancer.
OBJECTIVES: The aim of this study was to develop paclitaxel liposomes for a lung targeting delivery system. METHODS: The liposomes composed of Tween-80/HSPC/cholesterol (0.03 : 3.84 : 3.84, mol/mol), containing paclitaxel and lipids (1 : 40, mol/mol), were prepared by a combination of solid dispersion and effervescent techniques, and then subjected to ultrasonication. The pharmacokinetics and biodistribution of liposomal and injectable formulation of paclitaxel in dogs were studied after intravenous administration. KEY FINDINGS: The mean diameter, polydispersity index, zeta-potential and entrapment efficiency of the liposomes were 501.60 ± 15.43 nm, 0.28 ± 0.02, -20.93 ± 0.06 mV and 95.17 ± 0.32%, respectively. The liposomal formulation kept stable for at least 3 months at 6 ± 2°C and didn't cause haemolysis. The liposome carrier decreased the area under the curve and terminal half-life of paclitaxel compared with paclitaxel injection ranging from 0.352 ± 0.031 mg/l*h and 0.0671 ± 0.144 h to 0.748 ± 0.062 mg/l*h and 1.978 ± 0.518 h, respectively. The paclitaxel liposomes produced a drug concentration in the lung that was markedly higher than that in other organs or tissues and was about 15-fold of that of paclitaxel injection at 2 h. CONCLUSIONS: To sum up, these results demonstrated that the paclitaxel liposomes are an effective lung targeted carrier in the treatment of lung cancer.
Authors: Sandra M Axiak-Bechtel; Senthil R Kumar; Kristin K Dank; Nicole A Clarkson; Kim A Selting; Jeffrey N Bryan; Thomas J Rosol; Jahna Espinosa; Charles J Decedue Journal: Invest New Drugs Date: 2013-09-13 Impact factor: 3.850
Authors: Sandra M Axiak; Kim A Selting; Charles J Decedue; Carolyn J Henry; Deborah Tate; Jahna Howell; K James Bilof; Dae Y Kim Journal: Int J Nanomedicine Date: 2011-10-11