Preparation and characterization of galactosylated glycol chitosan micelles and its potential use for hepatoma-targeting delivery of doxorubicin

J Mater Sci Mater Med. 2014 Mar;25(3):691-701. doi: 10.1007/s10856-013-5109-9. Epub 2013 Dec 14.

Abstract

This study aimed to develop novel galactosylated cholesterol modified-glycol chitosan (Gal-CHGC) micelles for targeting delivery of doxorubicin (DOX) in live cancer cells. Three kinds of Gal-CHGC conjugates were synthesized and characterized. The mean particle size and critical aggregation concentration of these polymeric micelles increased with the increase of galactose substitution degree. The DOX-loaded micelles were prepared by an o/w method. The mean diameters of DOX-loaded galactosylated micelles were in the range of 387-497 nm. DOX released from drug-loaded micelles displayed a biphasic way. Cellular uptake studies demonstrated that DOX-loaded galactosylated micelles could enhance the uptake of DOX into HepG2 cells. Moreover, the cytotoxicity of DOX-loaded galactosylated micelles against HepG2 cells significantly improved in contrast with free DOX and DOX-loaded micelles without galactosylation. These results suggested that Gal-CHGC micelles could be a potential carrier for hepatoma-targeting drug delivery.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibiotics, Antineoplastic / administration & dosage
  • Antibiotics, Antineoplastic / chemistry
  • Cell Survival / drug effects*
  • Chitosan / chemistry*
  • Delayed-Action Preparations / administration & dosage
  • Delayed-Action Preparations / chemical synthesis*
  • Doxorubicin / administration & dosage*
  • Doxorubicin / chemistry
  • Doxorubicin / pharmacokinetics*
  • Feasibility Studies
  • Galactose / chemistry*
  • Hep G2 Cells
  • Humans
  • Materials Testing
  • Micelles
  • Nanocapsules / chemistry*
  • Nanocapsules / ultrastructure
  • Particle Size

Substances

  • Antibiotics, Antineoplastic
  • Delayed-Action Preparations
  • Micelles
  • Nanocapsules
  • glycated chitosan
  • Doxorubicin
  • Chitosan
  • Galactose