The Effect of Cage Shape on Nanoparticle-Based Drug Carriers: Anticancer Drug Release and Efficacy via Receptor Blockade Using Dextran-Coated Iron Oxide Nanocages.
Nano Lett
; 16(12): 7357-7363, 2016 12 14.
Article
en En
| MEDLINE
| ID: mdl-27960523
Although a range of nanoparticles have been developed as drug delivery systems in cancer therapeutics, this approach faces several important challenges concerning nanocarrier circulation, clearance, and penetration. The impact of reducing nanoparticle size on penetration through leaky blood vessels around tumor microenvironments via enhanced permeability and retention (EPR) effect has been extensively examined. Recent research has also investigated the effect of nanoparticle shape on circulation and target binding affinity. However, how nanoparticle shape affects drug release and therapeutic efficacy has not been previously explored. Here, we compared the drug release and efficacy of iron oxide nanoparticles possessing either a cage shape (IO-NCage) or a solid spherical shape (IO-NSP). Riluzole cytotoxicity against metastatic cancer cells was enhanced 3-fold with IO-NCage. The shape of nanoparticles (or nanocages) affected the drug release point and cellular internalization, which in turn influenced drug efficacy. Our study provides evidence that the shape of iron oxide nanoparticles has a significant impact on drug release and efficacy.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Portadores de Fármacos
/
Compuestos Férricos
/
Dextranos
/
Nanopartículas
Límite:
Humans
Idioma:
En
Revista:
Nano Lett
Año:
2016
Tipo del documento:
Article
País de afiliación:
Estados Unidos