An aminophosphonate ester ligand-containing platinum(ii) complex induces potent immunogenic cell death in vitro and elicits effective anti-tumour immune responses in vivo

Chem Commun (Camb). 2019 Oct 29;55(87):13066-13069. doi: 10.1039/c9cc06563f.

Abstract

A platinum(ii) complex containing an aminophosphonate ligand preferentially accumulates in the endoplamic reticulum (ER) in association with potent ER stress and reactive oxygen species generation, followed by the activation of damage-associated molecular pattern signals and immune responses. Importantly, the Pt complex exhibits potent anti-tumour activities in two independent mouse models via an immunogenic cell death pathway.

MeSH terms

  • Animals
  • Antineoplastic Agents, Immunological / chemistry
  • Antineoplastic Agents, Immunological / pharmacology*
  • Cell Death / drug effects
  • Esters / chemistry
  • Esters / pharmacology*
  • Humans
  • Ligands
  • Lung Neoplasms / drug therapy*
  • Lung Neoplasms / immunology
  • Lung Neoplasms / pathology
  • Mice
  • Mice, Inbred C57BL
  • Neoplasms, Experimental / drug therapy
  • Neoplasms, Experimental / immunology
  • Neoplasms, Experimental / pathology
  • Organophosphonates / chemistry
  • Organophosphonates / pharmacology*
  • Organoplatinum Compounds / chemistry
  • Organoplatinum Compounds / pharmacology*

Substances

  • Antineoplastic Agents, Immunological
  • Esters
  • Ligands
  • Organophosphonates
  • Organoplatinum Compounds