作者:Emilia Păunescu、Patrycja Nowak-Sliwinska、Catherine M. Clavel、Rosario Scopelliti、Arjan W. Griffioen、Paul J. Dyson
DOI:10.1002/cmdc.201500221
日期:2015.9
Osmium compounds are attracting increasing attention as potential anticancer drugs. In this context, a series of bifunctional organometallic osmium(II)‐p‐cymene complexes functionalized with alkyl or perfluoroalkyl groups were prepared and screened for their antiproliferativeactivity. Three compounds from the series display selectivity toward cancercells, with moderate cytotoxicity observed against
Discovery of a Highly Tumor-Selective Organometallic Ruthenium(II)–Arene Complex
作者:Catherine M. Clavel、Emilia Păunescu、Patrycja Nowak-Sliwinska、Arjan W. Griffioen、Rosario Scopelliti、Paul J. Dyson
DOI:10.1021/jm5002748
日期:2014.4.24
A ruthenium(II)-arene complex with a perfluoroalkyl-ligand was found to display remarkable selectivity toward cancer cells. IC50 values on several cancer cell lines are in the range of 25-45 mu M, and no cytotoxic effect was observed on nontumorigenic (HEK-293) cells at concentrations up to 500 mu M (the maximum concentration tested). Consequently, this complex was used as the basis for the development of a number of related derivatives, which were screened in cancerous and noncancerous cell lines. The lead compound was then evaluated in vivo for antiangiogenic activity in the CAM model and in a xenografted ovarian carcinoma tumor (A2780) grown on the CAM. A 90% reduction in the tumor growth was observed.
Modulating the Anticancer Activity of Ruthenium(II)–Arene Complexes
作者:Catherine M. Clavel、Emilia Păunescu、Patrycja Nowak-Sliwinska、Arjan W. Griffioen、Rosario Scopelliti、Paul J. Dyson
DOI:10.1021/jm501655t
日期:2015.4.23
Following the identification of [Ru(eta(6)-p-cymene)Cl-2(1H,1H,2H,2H-perfluorodecyl-3-(pyridin-3-yl)propanoate)], a ruthenium(II)arene complex with a perfluoroalkyl-modified ligand that displays remarkable in vitro cancer cell selectivity, a series of structurally related compounds were designed. In the new derivatives, the p-cymene ring and/or the chloride ligands are substituted by other ligands to modulate the steric bulk or aquation kinetics. The new compounds were evaluated in both in vitro (cytotoxicity and migration assays) and in vivo (chicken chorioallantoic membrane) models and were found to exhibit potent antivascular effects.
Thermoresponsive organometallic arene ruthenium complexes for tumour targeting
作者:Catherine M. Clavel、Emilia Păunescu、Patrycja Nowak-Sliwinska、Paul J. Dyson
DOI:10.1039/c3sc53185f
日期:——
Application of mild hyperthermia can increase the cytotoxicity of anticancer drugs in tumour cells. In this report, we describe low molecular weight thermoactive ruthenium-based drugs with fluorous chains that are selectively triggered by mild hyperthermia. The organometallic complexes were prepared, characterized, and evaluated for their in vitro cytotoxicity against a panel of human cancer cell lines