Visible light-induced singlet oxygen-mediated intracellular disassembly of polymeric micelles co-loaded with a photosensitizer and an anticancer drug for enhanced photodynamic therapy

Chem Commun (Camb). 2015 Jun 21;51(49):9995-8. doi: 10.1039/c5cc01937k.

Abstract

Herein, we report a biocompatible amphiphilic block copolymer micelle bearing a singlet oxygen-sensitive vinyldithioether cleavable linker at the core-shell junction, which undergoes singlet oxygen-mediated photocleavage in the presence of visible light. The micelle facilitates the light-responsive release of singlet oxygen and an anticancer drug for enhanced photodynamic therapy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology
  • Biocompatible Materials / chemistry
  • Cell Line, Tumor
  • Doxorubicin / chemistry*
  • Doxorubicin / pharmacology
  • Drug Carriers / chemistry
  • Drug Design
  • Drug Liberation
  • Humans
  • Hydrophobic and Hydrophilic Interactions
  • Intracellular Space / drug effects
  • Intracellular Space / metabolism*
  • Intracellular Space / radiation effects
  • Lactones / chemistry*
  • Light*
  • Micelles*
  • Photochemotherapy*
  • Photosensitizing Agents / chemistry
  • Photosensitizing Agents / pharmacology
  • Polyethylene Glycols / chemistry*
  • Singlet Oxygen / metabolism*
  • Sulfides / chemistry

Substances

  • Antineoplastic Agents
  • Biocompatible Materials
  • Drug Carriers
  • Lactones
  • Micelles
  • Photosensitizing Agents
  • Sulfides
  • poly(ethylene glycol)-block-poly(epsilon-caprolactone)
  • Singlet Oxygen
  • Polyethylene Glycols
  • Doxorubicin