Self-Illuminated, Oxygen-Supplemented Photodynamic Therapy via a Multienzyme-Mimicking Nanoconjugate

ACS Appl Bio Mater. 2021 Apr 19;4(4):3490-3498. doi: 10.1021/acsabm.1c00035. Epub 2021 Mar 8.

Abstract

Current photodynamic therapy (PDT) faces several intrinsic limitations, including insufficient oxygen supply and limited penetration of external light sources. Herein, we report a nanoconjugate, which, in response to the elevated hydrogen peroxide levels associated with tumor tissues, can supplement the oxygen needed for PDT and provide local self-illumination. Consisting of a MnFe2O4 core, a metal-organic framework shell loaded with the chemiluminescence reagent luminol, and a hyaluronic acid surface coating, the nanoconjugate is highly effective for suppressing cancer tissues in vivo via PDT in the absence of externally delivered light.

Keywords: chemiluminescence; light-free; metal−organic framework (MOF); oxygen-supplemented; photodynamic therapy (PDT).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Biocompatible Materials / chemistry
  • Biocompatible Materials / pharmacology*
  • Cell Survival / drug effects
  • Drug Screening Assays, Antitumor
  • Female
  • Hep G2 Cells
  • Humans
  • Hyaluronic Acid / chemistry
  • Hyaluronic Acid / pharmacology
  • Hydrogen Peroxide / analysis
  • Liver Neoplasms, Experimental / drug therapy
  • Liver Neoplasms, Experimental / metabolism
  • Liver Neoplasms, Experimental / pathology
  • Luminol / chemistry
  • Luminol / pharmacology
  • Materials Testing
  • Metal-Organic Frameworks / chemistry
  • Metal-Organic Frameworks / pharmacology*
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • Nanoconjugates / chemistry*
  • Oxygen / chemistry
  • Oxygen / pharmacology*
  • Particle Size
  • Photochemotherapy*
  • Surface Properties
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents
  • Biocompatible Materials
  • Metal-Organic Frameworks
  • Nanoconjugates
  • Luminol
  • Hyaluronic Acid
  • Hydrogen Peroxide
  • Oxygen