Fluorescence imaging-guided multifunctional liposomes for tumor-specific phototherapy for laryngeal carcinoma

Biomater Sci. 2020 Jun 21;8(12):3443-3453. doi: 10.1039/d0bm00249f. Epub 2020 May 15.

Abstract

Reliable diagnosis and efficient targeted therapy are important and may lead to the effective treatment of laryngeal carcinoma. Multifunctional nano-theranostic agents demonstrate great potential in tumor theranostic applications. Thus, herein, we report novel targeting multifunctional theranostic nanoparticles, internalized RGD (iRGD)-modified indocyanine green (ICG) encapsulated liposomes (iLIPICG), for imaging-guided photothermal therapy (PTT) and photodynamic therapy (PDT) for the treatment of laryngeal carcinoma. The iRGD-PEG-DSPE lipid endowed iLIPICG with high affinity for tumor vascular targeting, tumor-penetration and tumor cell targeting. The in vivo results showed that iLIPICG exhibited excellent blood circulation and tumor accumulation. iLIPICG could be spatially and temporally controlled, simultaneously producing hyperthermia and reactive oxygen species as well as a fluorescence-guided effect through ICG to ablate laryngeal carcinoma cells under irradiation from an 808 nm laser. iLIPICG generated synergistic photodynamic-photothermal cytotoxicity against Hep-2 cells, resulting in the efficient ablation of laryngeal carcinoma. Thus, the iLIPICG system provides a promising strategy to improve the precision imaging and effective phototherapy for the treatment of laryngeal carcinoma.

MeSH terms

  • Animals
  • Cell Line, Tumor
  • Coloring Agents / administration & dosage*
  • Coloring Agents / chemistry
  • Coloring Agents / pharmacokinetics
  • Humans
  • Indocyanine Green / administration & dosage*
  • Indocyanine Green / chemistry
  • Indocyanine Green / pharmacokinetics
  • Laryngeal Neoplasms / metabolism
  • Laryngeal Neoplasms / pathology
  • Laryngeal Neoplasms / therapy*
  • Lasers
  • Liposomes
  • Male
  • Mice, SCID
  • Oligopeptides / administration & dosage*
  • Oligopeptides / chemistry
  • Oligopeptides / pharmacokinetics
  • Optical Imaging
  • Phosphatidylethanolamines / administration & dosage
  • Phosphatidylethanolamines / chemistry
  • Phosphatidylethanolamines / pharmacokinetics
  • Phototherapy*
  • Polyethylene Glycols / administration & dosage
  • Polyethylene Glycols / chemistry
  • Polyethylene Glycols / pharmacokinetics
  • Reactive Oxygen Species / metabolism

Substances

  • Coloring Agents
  • Liposomes
  • Oligopeptides
  • Phosphatidylethanolamines
  • Reactive Oxygen Species
  • 1,2-distearoylphosphatidylethanolamine
  • Polyethylene Glycols
  • arginyl-glycyl-aspartic acid
  • Indocyanine Green