0000000001299544
AUTHOR
Benelita T. Elie
showing 12 related works from this author
Versatile synthesis of cationic N-heterocyclic carbene–gold(i) complexes containing a second ancillary ligand. Design of heterobimetallic ruthenium–g…
2016
We describe a versatile and quick route to cationic gold(i) complexes containing N-heterocyclic carbenes and a second ancillary ligand (such as phosphanes, phosphites, arsines and amines) of interest for the synthesis of compounds with potential catalytic and medicinal applications. The general synthetic strategy has been applied in the preparation of novel cationic heterobimetallic ruthenium(ii)-gold(i) complexes that are highly cytotoxic to renal cancer Caki-1 and colon cancer HCT 116 cell lines while showing a synergistic effect and being more selective than their monometallic counterparts.
Heterometallic titanium–gold complexes inhibit renal cancer cells in vitro and in vivo
2015
Following recent work on heterometallic titanocene-gold complexes as potential chemotherapeutics for renal cancer, we report here on the synthesis, characterization and stability studies of new titanocene complexes containing a methyl group and a carboxylate ligand (mba = S-C6H4-COO-) bound to gold(I)-phosphane fragments through a thiolate group ([(η-C5H5)2TiMe(μ-mba)Au(PR3)]. The compounds are more stable in physiological media than those previously reported and are highly cytotoxic against human cancer renal cell lines. We describe here preliminary mechanistic data involving studies on the interaction of selected compounds with plasmid (pBR322) DNA used as a model nucleic acid, and with s…
Titanocene–gold complexes containing N-heterocyclic carbene ligands inhibit growth of prostate, renal, and colon cancers in vitro
2016
We report on the synthesis, characterization, and stability studies of new titanocene complexes containing a methyl group and a carboxylate ligand (mba = −OC(O)-p-C6H4-S−) bound to gold(I)−N-heterocyclic carbene fragments through the thiolate group: [(η5 -C5H5)2TiMe(μ-mba)Au(NHC)]. The cytotoxicities of the heterometallic compounds along with those of novel monometallic gold−N-heterocyclic carbene precursors [(NHC)Au(mbaH)] have been evaluated against renal, prostate, colon, and breast cancer cell lines. The highest activity and selectivity and a synergistic effect of the resulting heterometallic species was found for the prostate and colon cancer cell lines. The colocalization of both tita…
In Vitro and in Vivo Evaluation of Water-Soluble Iminophosphorane Ruthenium(II) Compounds. A Potential Chemotherapeutic Agent for Triple Negative Bre…
2014
A series of organometallic ruthenium(II) complexes containing iminophosphorane ligands have been synthesized and characterized. Cationic compounds with chloride as counterion are soluble in water (70–100 mg/mL). Most compounds (especially highly water-soluble 2) are more cytotoxic to a number of human cancer cell lines than cisplatin. Initial mechanistic studies indicate that the cell death type for these compounds is mainly through canonical or caspase-dependent apoptosis, nondependent on p53, and that the compounds do not interact with DNA or inhibit protease cathepsin B. In vivo experiments of 2 on MDA-MB-231 xenografts in NOD.CB17-Prkdc SCID/J mice showed an impressive tumor reduction (…
Organometallic Titanocene–Gold Compounds as Potential Chemotherapeutics in Renal Cancer. Study of their Protein Kinase Inhibitory Properties
2014
Early–late transition metal TiAu2 compounds [(η-C5H5)2Ti{OC(O)CH2PPh2AuCl}2] (3) and new [(η-C5H5)2Ti{OC(O)-4-C6H4PPh2AuCl}2] (5) were evaluated as potential anticancer agents in vitro against renal and prostate cancer cell lines. The compounds were significantly more effective than monometallic titanocene dichloride and gold(I) [{HOC(O)RPPh2}AuCl] (R = −CH2– 6, −4-C6H4– 7) derivatives in renal cancer cell lines, indicating a synergistic effect of the resulting heterometallic species. The activity on renal cancer cell lines (for 5 in the nanomolar range) was considerably higher than that of cisplatin and highly active titanocene Y. Initial mechanistic studies in Caki-1 cells in vitro couple…
Heterometallic titanium–gold complexes inhibit renal cancer cells in vitro and in vivo † †This paper is dedicated to Prof. Roberto Sánchez-Delgado, g…
2015
Heterometallic compounds as anticancer agents demonstrating in vivo potential for the first time. Titanocene–gold derivatives: promising candidates for renal cancer.
CCDC 1436326: Experimental Crystal Structure Determination
2016
Related Article: Jacob Fernández-Gallardo, Benelita T. Elie, Mercedes Sanaú, María Contel|2016|Chem.Commun.|52|3155|doi:10.1039/C5CC09718E
CCDC 1008354: Experimental Crystal Structure Determination
2015
Related Article: Malgorzata Frik, Alberto Martínez, Benelita T. Elie, Oscar Gonzalo, Daniel Ramírez de Mingo, Mercedes Sanaú, Roberto Sánchez-Delgado, Tanmoy Sadhukha, Swayam Prabha, Joe W. Ramos, Isabel Marzo, and María Contel|2014|J.Med.Chem.|57|9995|doi:10.1021/jm5012337
CCDC 1438894: Experimental Crystal Structure Determination
2017
Related Article: Yiu Fung Mui, Jacob Fernandez-Gallardo, Benelita T. Elie, Ahmed Gubran, Irene Maluenda, Mercedes Sanau, Oscar Navarro, Marıa Contel|2016|Organometallics|35|1218|doi:10.1021/acs.organomet.6b00051
CCDC 1436327: Experimental Crystal Structure Determination
2016
Related Article: Jacob Fernández-Gallardo, Benelita T. Elie, Mercedes Sanaú, María Contel|2016|Chem.Commun.|52|3155|doi:10.1039/C5CC09718E
CCDC 1008332: Experimental Crystal Structure Determination
2014
Related Article: Jacob Fernández-Gallardo, Benelita T. Elie, Florian J. Sulzmaier, Mercedes Sanaú, Joe W. Ramos, María Contel|2014|Organometallics|33|6669|doi:10.1021/om500965k
CCDC 1400886: Experimental Crystal Structure Determination
2015
Related Article: Jacob Fernández-Gallardo, Benelita T. Elie, Tanmoy Sadhukha, Swayam Prabha, Mercedes Sanaú, Susan A. Rotenberg, Joe W. Ramos, María Contel|2015|Chemical Science|6|5269|doi:10.1039/C5SC01753J