Construction of a two-in-one liposomal system (TWOLips) for tumor-targeted combination therapy.
Int J Pharm
; 476(1-2): 241-52, 2014 Dec 10.
Article
em En
| MEDLINE
| ID: mdl-25300591
ABSTRACT
In oncology, there is a growing need for simpler, more selective methods to deliver drug therapies directly to the tumor site. For combination therapies, simultaneous targeted delivery of multiple drugs would represent a significant improvement. In contrast to previous work that took a de novo approach, we constructed a novel two-in-one liposomal system (TWOLips) from two single drug-loaded liposomes. Our results demonstrated that TWOLips could be prepared by a simple process, through silica coating of one liposome and incubation with the second liposome. TWOLips had a mean diameter of 100 nm, relatively high drug loading rates (96.8%±0.9% for doxorubicin and 78.4%±1.2% for combretastatin), and high storage stability. TWOLips modification by adding a targeting moiety, an all D-amino acid peptide derived from a natural vascular endothelial growth factor, resulted in strong, selective binding to vascular endothelial growth factor receptor 2, a tumorigenesis marker, in vitro and in vivo. TWOLips significantly inhibited tumor growth and angiogenesis and enhanced survival in mice with A375 melanoma xenografts. The TWOLips system had a low potential risk of toxicity. Since the stepwise assembly could be carried further (additional drug-loaded liposomes), TWOLips shows potential as a treatment for many cancers, especially those that require multiple drugs.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Bibenzilas
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Doxorrubicina
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Melanoma
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Neovascularização Patológica
Tipo de estudo:
Prognostic_studies
Limite:
Animals
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Female
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Humans
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Male
Idioma:
En
Revista:
Int J Pharm
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
China