ZFIN ID: ZDB-PUB-170419-7
Cisplatin Analogs Confer Protection against Cyanide Poisoning
Nath, A.K., Shi, X., Harrison, D.L., Morningstar, J.E., Mahon, S., Chan, A., Sips, P., Lee, J., MacRae, C.A., Boss, G.R., Brenner, M., Gerszten, R.E., Peterson, R.T.
Date: 2017
Source: Cell chemical biology   24(5): 565-575.e4 (Journal)
Registered Authors: MacRae, Calum A., Nath, Anjali, Peterson, Randall
Keywords: antidote, cisplatin, cyanide, phenotypic screening, platinum, zebrafish
MeSH Terms:
  • Animals
  • Antidotes/chemistry*
  • Antidotes/metabolism
  • Antidotes/pharmacology*
  • Cell Line
  • Cisplatin/analogs & derivatives*
  • Cisplatin/metabolism
  • Cisplatin/pharmacology*
  • Cyanides/chemistry
  • Cyanides/metabolism
  • Cyanides/poisoning*
  • Drug Approval
  • Electron Transport Complex IV/metabolism
  • Humans
  • Lethal Dose 50
  • Oxidation-Reduction/drug effects
  • Rabbits
  • Solubility
  • Sulfur/chemistry
  • Zebrafish
PubMed: 28416275 Full text @ Cell Chem Biol
Cisplatin holds an illustrious position in the history of chemistry most notably for its role in the virtual cure of testicular cancer. Here we describe a role for this small molecule in cyanide detoxification in vivo. Cyanide kills organisms as diverse as insects, fish, and humans within seconds to hours. Current antidotes exhibit limited efficacy and are not amenable to mass distribution requiring the development of new classes of antidotes. The binding affinity of the cyanide anion for the positively charged metal platinum is known to create an extremely stable complex in vitro. We therefore screened a panel of diverse cisplatin analogs and identified compounds that conferred protection from cyanide poisoning in zebrafish, mice, and rabbits. Cumulatively, this discovery pipeline begins to establish the characteristics of platinum ligands that influence their solubility, toxicity, and efficacy, and provides proof of concept that platinum-based complexes are effective antidotes for cyanide poisoning.