Supramolecular palladium complexes based on guanidinium pillar[5]arene for cancer therapy

Chem Commun (Camb). 2024 Oct 29;60(87):12694-12697. doi: 10.1039/d4cc04312j.

Abstract

The supramolecular palladium complex G-Pd, formed via self-assembly of the Pd-complex of guanidinium pillar[5]arene with Pd2+, was used to encapsulate doxorubicin to form G-Pd@DOX. The nanoparticles exhibit responsiveness to glutathione, controlled drug release, the ability to damage mitochondria, and potent anticancer activity while maintaining low toxicity towards normal cells. This work provides a good example for the application of pillararene-based palladium complexes in cancer therapy and is significant for the discovery of new medicines from supramolecular coordination complexes.

MeSH terms

  • Antineoplastic Agents* / chemistry
  • Antineoplastic Agents* / pharmacology
  • Calixarenes* / chemistry
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Coordination Complexes* / chemical synthesis
  • Coordination Complexes* / chemistry
  • Coordination Complexes* / pharmacology
  • Doxorubicin* / chemistry
  • Doxorubicin* / pharmacology
  • Drug Liberation
  • Drug Screening Assays, Antitumor
  • Glutathione / chemistry
  • Guanidine* / chemistry
  • Guanidine* / pharmacology
  • Humans
  • Palladium* / chemistry
  • Quaternary Ammonium Compounds / chemistry
  • Quaternary Ammonium Compounds / pharmacology

Substances

  • Palladium
  • Doxorubicin
  • pillar(5)arene
  • Calixarenes
  • Guanidine
  • Coordination Complexes
  • Antineoplastic Agents
  • Quaternary Ammonium Compounds
  • Glutathione