Preparation of tri-block copolymer micelles loading novel organoselenium anticancer drug BBSKE and study of tissue distribution of copolymer micelles by imaging in vivo method.
Int J Pharm
; 391(1-2): 292-304, 2010 May 31.
Article
en En
| MEDLINE
| ID: mdl-20211232
ABSTRACT
BBSKE (1,2-[bis(1,2-benzisoselenazolone-3(2H)-ketone)] ethane, PCT CN02/00412) is a novel organoselenium anticancer drug that plays a role in anticancer through inhibiting TrxR (thioredoxin reductase). In this study, we prepared a tri-block copolymer micelles loading BBSKE utilizing the amphiphilic tri-block copolymers (PEG6000-PLA6000) which we synthesized. And then the characters of the copolymer micelles were investigated. When packaged in polymeric micelles, the water solubility of BBSKE was improved to 0.21 mg/ml. The IC(50) were 7.14 microM, 5.05 microM and 4.23 microM when MCF-7 breast cancer cells were treated with BBSKE after 24h, 48h and 72h. The inhibition effect of polymeric micelles to MCF-7 tumor cells was bettered when folate, whose receptor was highly expressed in various tumors, was coated on the surface of these nanoparticles. Finally, by adopting a new way of imaging in vivo, we studied the distribution of micelles in nude mice with and without MCF-7 tumor. The results demonstrated that this copolymer micelles loading BBSKE can accumulate into tumor efficiently.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Polietilenglicoles
/
Química Farmacéutica
/
Compuestos de Organoselenio
/
Compuestos Bicíclicos Heterocíclicos con Puentes
/
Lactatos
/
Antineoplásicos
Límite:
Animals
Idioma:
En
Revista:
Int J Pharm
Año:
2010
Tipo del documento:
Article
País de afiliación:
China