Trimodal synergistic antitumor drug delivery system based on graphene oxide

Nanomedicine. 2019 Jan;15(1):142-152. doi: 10.1016/j.nano.2018.09.008. Epub 2018 Oct 6.

Abstract

A multifunctional antitumor drug delivery system was synthesized based on graphene oxide (GO) for near-infrared (NIR) light controlling chemotherapeutic/photothermal (PTT) /photodynamic (PDT) trimodal synergistic therapy. The system named ICG-Wed-GO was formed by co-loading wedelolactone (Wed) and indocyanine green (ICG) on the surface of GO through π-π stacking interaction. Under NIR laser irradiation, ICG-Wed-GO could effectively absorb and transform optical energy to heat, generate reactive oxygen species (ROS) to ablating and damage tumor cells. The temperature of ICG-Wed-GO solution reached up to 79.4 °C in 10 min with NIR irradiation. In in vitro and in vivo study, ICG-Wed-GO showed excellent antitumor effect. After 14-day treatment of ICG-Wed-GO with NIR laser irradiation, the tumor disappeared completely on tumor-bearing mice. The low biotoxicity of ICG-Wed-GO was also proved. The system achieved the synergistic trimodal chemotherapeutic/photothermal/photodynamic treatment and demonstrated excellent antitumor effect, which is expected to have a greater potential for cancer therapy.

Keywords: Drug delivery system; Graphene oxide; Indocyanine green; Synergistic antitumor; Wedelolactone.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Coloring Agents / administration & dosage
  • Coloring Agents / chemistry
  • Coumarins / chemistry*
  • Drug Delivery Systems*
  • Female
  • Graphite / chemistry*
  • Hyperthermia, Induced*
  • Indocyanine Green / administration & dosage*
  • Indocyanine Green / chemistry
  • Mice
  • Photochemotherapy*
  • Reactive Oxygen Species
  • Tumor Cells, Cultured
  • Uterine Cervical Neoplasms / pathology
  • Uterine Cervical Neoplasms / therapy*

Substances

  • Coloring Agents
  • Coumarins
  • Reactive Oxygen Species
  • graphene oxide
  • wedelolactone
  • Graphite
  • Indocyanine Green