Redox-Responsive Biomimetic Polymeric Micelle for Simultaneous Anticancer Drug Delivery and Aggregation-Induced Emission Active Imaging

Bioconjug Chem. 2018 Jun 20;29(6):1897-1910. doi: 10.1021/acs.bioconjchem.8b00119. Epub 2018 May 10.

Abstract

Intelligent polymeric micelles have been developed as potential nanoplatforms for efficient drug delivery and diagnosis. Herein, we successfully prepared redox-sensitive polymeric micelles combined aggregation-induced emission (AIE) imaging as an outstanding anticancer drug carrier system for simultaneous chemotherapy and bioimaging. The amphiphilic copolymer TPE-SS-PLAsp- b-PMPC could self-assemble into spherical micelles, and these biomimetic micelles exhibited great biocompatibility and remarkable ability in antiprotein adsorption, showing great potential for biomedical application. Anticancer drug doxorubicin (DOX) could be encapsulated during the self-assembly process, and these drug-loaded micelles showed intelligent drug release and improved antitumor efficacy due to the quick disassembly in response to high levels of glutathione (GSH) in the environment. Moreover, the intracellular DOX release could be traced through the fluorescent imaging of these AIE micelles. As expected, the in vivo antitumor study exhibited that these DOX-carried micelles showed better antitumor efficacy and less adverse effects than that of free DOX. These results strongly indicated that this smart biomimetic micelle system would be a prominent candidate for chemotherapy and bioimaging.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents / administration & dosage*
  • Antineoplastic Agents / therapeutic use
  • Biomimetic Materials / chemistry
  • Biomimetics
  • Breast Neoplasms / diagnostic imaging
  • Breast Neoplasms / drug therapy
  • Cell Line, Tumor
  • Delayed-Action Preparations / chemistry*
  • Doxorubicin / administration & dosage*
  • Doxorubicin / therapeutic use
  • Drug Liberation
  • Female
  • Fluorescent Dyes / chemistry*
  • HeLa Cells
  • Humans
  • Mice
  • Mice, Inbred BALB C
  • Micelles
  • Optical Imaging
  • Oxidation-Reduction
  • Phosphorylcholine / analogs & derivatives*
  • Phosphorylcholine / chemistry
  • Polymethacrylic Acids / chemistry*
  • Surface-Active Agents / chemistry*

Substances

  • Antineoplastic Agents
  • Delayed-Action Preparations
  • Fluorescent Dyes
  • Micelles
  • Polymethacrylic Acids
  • Surface-Active Agents
  • poly(2-methacryloyloxyethyl-phosphorylcholine)
  • Phosphorylcholine
  • Doxorubicin