Strategically engineered Au(I) complexes for orchestrated tumor eradication via chemo-phototherapy and induced immunogenic cell death

Nat Commun. 2024 Sep 18;15(1):8187. doi: 10.1038/s41467-024-52458-4.

Abstract

Cancer is a significant cause of death around the world, and for many varieties, treatment is not successful. Therefore, there is a need for the development of innovative, efficacious, and precisely targeted treatments. Here, we develop a series of Au(I) complexes (1-4) through rational manipulation of ligand structures, thereby achieving tumor cell specific targeting and orchestrated tumor eradication via chemo-phototherapy and induced immunogenic cell death. A comprehensive exploration based on in vitro and in vivo female mice experimentation shows that complex 4 exhibits proficiency in specific tumor imaging, endoplasmic reticulum targeting, and has robust therapeutic capabilities. Mechanistic elucidation indicates that the anticancer effect derives from the synergistic actions of thioredoxin reductase inhibition, highly efficient reactive oxygen species production and immunogenic cell death. This work presents a report on a robust Au(I) complex integrating three therapeutic modalities within a singular system. The strategy presented in this work provides a valuable reference for the development of high-performance therapeutic agents.

MeSH terms

  • Animals
  • Antineoplastic Agents / pharmacology
  • Antineoplastic Agents / therapeutic use
  • Cell Line, Tumor
  • Coordination Complexes / chemistry
  • Coordination Complexes / pharmacology
  • Coordination Complexes / therapeutic use
  • Female
  • Gold* / chemistry
  • Humans
  • Immunogenic Cell Death* / drug effects
  • Mice
  • Neoplasms / immunology
  • Neoplasms / therapy
  • Phototherapy / methods
  • Reactive Oxygen Species* / metabolism
  • Thioredoxin-Disulfide Reductase / metabolism

Substances

  • Gold
  • Reactive Oxygen Species
  • Thioredoxin-Disulfide Reductase
  • Antineoplastic Agents
  • Coordination Complexes