Tumor microenvironment-activated nanosystems with selenophenol substituted BODIPYs as photosensitizers for photodynamic therapy

Bioorg Med Chem Lett. 2020 Jan 15;30(2):126854. doi: 10.1016/j.bmcl.2019.126854. Epub 2019 Dec 3.

Abstract

NIR-light-absorbing photosensitizers with the capability of selective localization and activation in tumor regions are of great importance for practical photodynamic therapy (PDT). Here, selenophenol substituted BODIPYs were designed and synthesized as new photosensitizers for PDT. One of these obtained BODIPYs, IBSeOV, possesses an intense and low energy absorption with a high singlet oxygen quantum yield (ΦΔ = 60%). Considering manganese dioxide (MnO2) nanosheets as versatile nanocarriers in cancer theranostics, nanosystem IBSeOV/MnO2 was then fabricated to furnish tumor environment selective activation. Such designed nanoplatform allowed for GSH-controllable 1O2 production and exhibited low cytotoxicity in dark but good photocytotoxicity to cancer cells. The in vivo antitumor outcome suggested the high treatment efficiency of IBSeOV/MnO2 for tumor therapy.

Keywords: BODIPY; MnO(2) nanosheets; Photodynamic therapy; Photosensitizer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzene Derivatives / pharmacology
  • Benzene Derivatives / therapeutic use*
  • Humans
  • Nanostructures
  • Organoselenium Compounds / pharmacology
  • Organoselenium Compounds / therapeutic use*
  • Photochemotherapy / methods*
  • Photosensitizing Agents / pharmacology
  • Photosensitizing Agents / therapeutic use*
  • Tumor Microenvironment

Substances

  • Benzene Derivatives
  • Organoselenium Compounds
  • Photosensitizing Agents
  • benzeneselenol