Redox-Responsive Self-Assembled Chain-Shattering Polymeric Therapeutics

Biomater Sci. 2015 Jul;3(7):1061-5. doi: 10.1039/C4BM00452C.

Abstract

We report the design and development of redox-responsive chain-shattering polymeric therapeutics (CSPTs). CSPTs were synthesized by condensation polymerization and further modified with poly(ethylene glycol) (PEG) via "Click" reaction. Size-controlled CSPT nanoparticles (NPs) were formed through nanoprecipitation with high drug loading (up to 18%); the particle size increased in a concentration dependent manner. Drug release from particles was well controlled over 48 h upon redox triggering. The anticancer efficacy of the CSPT NPs was validated both in vitro and in vivo.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Cell Survival / drug effects*
  • Chemistry, Pharmaceutical
  • Doxorubicin / chemistry
  • Doxorubicin / toxicity*
  • Drug Carriers
  • Drug Delivery Systems
  • Drug Liberation
  • Humans
  • MCF-7 Cells / chemistry
  • MCF-7 Cells / drug effects*
  • Mice
  • Nanoparticles / chemistry*
  • Oxidation-Reduction
  • Paclitaxel / chemistry
  • Paclitaxel / therapeutic use*
  • Particle Size
  • Polyethylene Glycols / chemistry*
  • Polymerization
  • Polymers / chemical synthesis*
  • Polymers / chemistry

Substances

  • Drug Carriers
  • Polymers
  • Polyethylene Glycols
  • Doxorubicin
  • Paclitaxel