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Gold(I) N-Heterocyclic Carbene Complexes as Ferroptosis Inducing Anticancer Agents
Evelyn Schlegel1, Zisis Papadopoulos1, Nicolás Montesdeoca1
1Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44780 Bochum, Germany.
None:
This study presents the chemical synthesis and biological evaluation of a series of gold(I)-N-heterocyclic carbene complexes as potential anticancer agents. The compounds demonstrated broad activity against various cancer cell lines, exhibiting cytotoxicity in the low micromolar range. Mechanistic investigations revealed that these complexes preferentially accumulate in the mitochondria of cancer cells, where they induce the generation of reactive oxygen species and lipid peroxides, ultimately triggering ferroptosis. Further studies in multicellular tumor spheroids confirmed the compounds' ability to penetrate three-dimensional cellular structures and effectively eradicate them at low micromolar concentrations. This work represents the first known example of a gold(I)-N-heterocyclic carbene complex inducing ferroptosis, expanding the therapeutic potential of gold(I)-based metallodrugs.
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