Communications Chemistry (Nov 2021)

Landomycins as glutathione-depleting agents and natural fluorescent probes for cellular Michael adduct-dependent quinone metabolism

  • Alessio Terenzi,
  • Mery La Franca,
  • Sushilla van Schoonhoven,
  • Rostyslav Panchuk,
  • Álvaro Martínez,
  • Petra Heffeter,
  • Redding Gober,
  • Christine Pirker,
  • Petra Vician,
  • Christian R. Kowol,
  • Rostyslav Stoika,
  • Luca Salassa,
  • Jürgen Rohr,
  • Walter Berger

DOI
https://doi.org/10.1038/s42004-021-00600-4
Journal volume & issue
Vol. 4, no. 1
pp. 1 – 13

Abstract

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Landomycins are promising anti-cancer agents with the potential to bypass common resistance pathways, but their mechanism of action remains incompletely understood. Here a mechanism is proposed involving intracellular sequential thiol-Michael and oxidation reactions, which depletes endogenous thiols and induces reactive oxygen species formation.