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- Title
Cyclometalated Gold(III) Complexes Containing N-Heterocyclic Carbene Ligands Engage Multiple Anti-Cancer Molecular Targets.
- Authors
Fung, Sin Ki; Zou, Taotao; Cao, Bei; Lee, Pui-Yan; Fung, Yi Man Eva; Hu, Di; Lok, Chun-Nam; Che, Chi-Ming
- Abstract
Metal N-heterocyclic carbene (NHC) complexes are a promising class of anti-cancer agents displaying potent in vitro and in vivo activities. Taking a multi-faceted approach employing two clickable photoaffinity probes, herein we report the identification of multiple molecular targets for anti-cancer active pincer gold(III) NHC complexes. These complexes display potent and selective cytotoxicity against cultured cancer cells and in vivo anti-tumor activities in mice bearing xenografts of human cervical and lung cancers. Our experiments revealed the specific engagement of the gold(III) complexes with multiple cellular targets, including HSP60, vimentin, nucleophosmin, and YB-1, accompanied by expected downstream mechanisms of action. Additionally, PtII and PdII analogues can also bind the cellular proteins targeted by the gold(III) complexes, uncovering a distinct pincer cyclometalated metal-NHC scaffold in the design of anti-cancer metal medicines with multiple molecular targets.
- Subjects
GOLD compounds; HETEROCYCLIC compounds; CARBENES; LIGANDS (Chemistry); ANTINEOPLASTIC agents
- Publication
Angewandte Chemie International Edition, 2017, Vol 56, Issue 14, p3892
- ISSN
1433-7851
- Publication type
Academic Journal
- DOI
10.1002/anie.201612583