Gill, Martin R., Jarman, Paul J., Hearnden, Vanessa, Fairbanks, Simon D., Bassetto, Marcella, Palmer, John, Ayscough, Kathryn R., Thomas, Jim A. and Smythe, Carl 2022. A ruthenium(II) polypyridyl complex disrupts actin cytoskeleton assembly and blocks cytokinesis. Angewandte chemie-international edition 61 (27) , e202117449. 10.1002/anie.202117449 |
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Abstract
The dinuclear RuII complex [(Ru(phen)2)2(tpphz)]4+ (phen=1,10-phenanthroline, tpphz=tetrapyridophenazine) “RuRuPhen” blocks the transformation of G-actin monomers to F-actin filaments with no disassembly of pre-formed F-actin. Molecular docking studies indicate multiple RuRuPhen molecules bind to the surface of G-actin but not the binding pockets of established actin polymerisation inhibitors. In cells, addition of RuRuPhen causes rapid disruption to actin stress fibre organisation, compromising actomyosin contractility and cell motility; due to this effect RuRuPhen interferes with late-stage cytokinesis. Immunofluorescent microscopy reveals that RuRuPhen causes cytokinetic abscission failure by interfering with endosomal sorting complexes required for transport (ESCRT) complex recruitment.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Pharmacy |
Date of First Compliant Deposit: | 28 February 2023 |
Date of Acceptance: | 13 April 2022 |
Last Modified: | 03 May 2023 08:54 |
URI: | https://orca.cardiff.ac.uk/id/eprint/157345 |
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