Reactive oxygen species activated nanoparticles with tumor acidity internalization for precise anticancer therapy

J Control Release. 2017 Jun 10:255:142-153. doi: 10.1016/j.jconrel.2017.04.002. Epub 2017 Apr 4.

Abstract

The fact that the sensitivities of different tumor cells and different individuals to the actions of drug delivery system varied greatly, restricted the anticarcinogen to a desired therapeutic concentration. How to determine the destiny of drug delivery system in space and time is the main challenge to realize the precise anticancer therapy. In this paper, we reported a preparation of degradable nanoparticles (designated Pros-PDC) loaded DOX and IR780 with three functional domains: the charge-conversional feature with long circulation time and enhanced internalization, light-triggered reactive oxygen species (ROS) generation and subsequently ROS responsive anticancer drug release with a spatially and temporally precise fashion. The spatiotemporal drug release from the ROS activated Pros-PDC nanoparticles could be controlled by when and how long to perform laser irradiation. In the present work, multifunctions of DOX and IR780 loaded Pros-PDC nanoparticles, as a flexible, easily controllable drug release platform, had been certificated in vitro and in vivo.

Keywords: Acidity internalization; DOX; Precise anticancer therapy; Reactive oxygen species (ROS); Spatiotemporal drug release.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents / administration & dosage*
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacokinetics
  • Antineoplastic Agents / therapeutic use
  • Apoptosis / drug effects
  • Cell Line, Tumor
  • Doxorubicin / administration & dosage*
  • Doxorubicin / chemistry
  • Doxorubicin / pharmacokinetics
  • Doxorubicin / therapeutic use
  • Drug Liberation
  • Female
  • Indoles / administration & dosage*
  • Indoles / chemistry
  • Indoles / therapeutic use
  • Light
  • Mice, Inbred BALB C
  • Nanoparticles / administration & dosage*
  • Nanoparticles / chemistry
  • Nanoparticles / therapeutic use
  • Neoplasms / drug therapy
  • Neoplasms / metabolism*
  • Neoplasms / pathology
  • Reactive Oxygen Species / metabolism*
  • Tissue Distribution
  • Tumor Burden / drug effects

Substances

  • 2-(2-(2-chloro-3-((1,3-dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene)ethylidene)-1-cyclohexen-1-yl)ethenyl)-3,3-dimethyl-1-propylindolium
  • Antineoplastic Agents
  • Indoles
  • Reactive Oxygen Species
  • Doxorubicin