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de la Cueva-Alique I, de la Torre-Rubio E, Muñoz L, Calvo-Jareño A, Perez-Redondo A, Gude L, Cuenca T, Royo E. Stereoselective synthesis of oxime containing Pd(II) compounds: Highly effective, selective and stereo-regulated cytotoxicity against carcinogenic PC-3 cells. Dalton Trans 2022; 51:12812-12828. [DOI: 10.1039/d2dt01403c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New palladium compounds [Pd{(1S,4R)-NOH^NH(R)}Cl2] (R = Ph 1a or Bn 1b), [Pd{(1S,4R)-NOH^NH(R)}{(1S,4R)-NO^NH(R)}][Cl] (R = Ph 2a or Bn 2b) and corresponding [Pd{(1R,4S)-NOH^NH(R)}Cl2] (R = Ph 1a’ or Bn 1b’) and...
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2
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Tsave O, Salifoglou A. Biomimetic activity of soluble, well-defined, aqueous Ti(IV)-citrate species toward adipogenesis. An in vitro study. J Inorg Biochem 2020; 214:111290. [PMID: 33242718 DOI: 10.1016/j.jinorgbio.2020.111290] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/08/2020] [Accepted: 10/19/2020] [Indexed: 12/20/2022]
Abstract
Metal-organic complexes bearing physiological substrates have been the target of several investigations, probing into the potential of well-defined atoxic metalloforms to influence fundamental cellular processes overcoming insulin resistance in Diabetes mellitus 2. Outstanding cases of such metals include zinc and vanadium, both being the target of intense synthetic and biological studies toward insulin mimesis. Owing to the close proximity in the periodic table, an early transition metal, titanium, emerges as another potential candidate of biologically relevant complexation, reflecting species capable of promoting insulin mimetic activity. Driven by the so far explored aqueous synthetic chemistry of Ti(IV)-hydroxycaboxylato systems, a well-defined Ti(IV)-citrate compound was synthesized under physiological conditions, isolated, and characterized, followed by its introduction in biological assays, targeting adipogenic events linked to glucose uptake and catabolism. The mononuclear Ti(IV)-citrate complex was introduced to 3T3-L1 cells, thereby probing into its biological activity (toxicity, morphology, migration, and adipogenic capacity). The results project an atoxic profile for the Ti(IV)-citrate species, thus justifying further incorporation in cellular differentiation processes, leading to mature adipocytes in a time- and concentration-dependent fashion. The experiments suggest that Ti(IV)-citrate is a competent agent promoting fibroblast differentiation, as evidenced by key adipogenic biomarkers, while concurrently exhibiting synergistic/enhancing action with insulin. The collective results show, for the first time, that an appropriately configured soluble-bioavailable complex Ti(IV) form exhibits a distinctly unique bioprofile, thereby lending credence to the notion that titanium metallopharmaceuticals hold merit as competent agents in adipogenesis and insulin mimesis in Diabetes mellitus.
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Affiliation(s)
- O Tsave
- Laboratory of Inorganic Chemistry and Advanced Materials, School of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; 1st Department of Internal Medicine, AHEPA, University Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - A Salifoglou
- Laboratory of Inorganic Chemistry and Advanced Materials, School of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
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Fernandez-Vega L, Ruiz Silva VA, Domínguez-González TM, Claudio-Betancourt S, Toro-Maldonado RE, Capre Maso LC, Ortiz KS, Pérez-Verdejo JA, González JR, Rosado-Fraticelli GT, Meléndez FP, Betancourt Santiago FM, Rivera-Rivera DA, Navarro CM, Bruno Chardón AC, Vera AO, Tinoco AD. Evaluating Ligand Modifications of the Titanocene and Auranofin Moieties for the Development of More Potent Anticancer Drugs. INORGANICS 2020; 8. [PMID: 34046448 PMCID: PMC8152503 DOI: 10.3390/inorganics8020010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Over time platinum-based anticancer drugs have dominated the market, but their side effects significantly impact the quality of life of patients. Alternative treatments are being developed all over the world. The titanocene and auranofin families of compounds, discovered through an empirical search for other metal-based therapeutics, hold tremendous promise to improve the outcomes of cancer treatment. Herein we present a historical perspective of these compounds and review current efforts focused on the evolution of their ligands to improve their physiological solution stability, cancer selectivity, and antiproliferative performance, guided by a clear understanding of the coordination chemistry and aqueous speciation of the metal ions, of the cytotoxic mechanism of action of the compounds, and the external factors that limit their therapeutic potential. Newer members of these families of compounds and their combination in novel bimetallic complexes are the result of years of scientific research. We believe that this review can have a positive impact in the development and understanding of the metal-based drugs of gold, titanium, and beyond.
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de la Cueva-Alique I, Sierra S, Pérez-Redondo A, Marzo I, Gude L, Cuenca T, Royo E. Study of the anticancer properties of optically active titanocene oximato compounds. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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de la Cueva-Alique I, Muñoz-Moreno L, de la Torre-Rubio E, Bajo AM, Gude L, Cuenca T, Royo E. Water soluble, optically active monofunctional Pd(ii) and Pt(ii) compounds: promising adhesive and antimigratory effects on human prostate PC-3 cancer cells. Dalton Trans 2019; 48:14279-14293. [DOI: 10.1039/c9dt02873k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water soluble, enantiomerically pure “rule breakers” Pd(ii) and Pt(ii) compounds with promising anticancer potential are reported.
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Affiliation(s)
- Isabel de la Cueva-Alique
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Laura Muñoz-Moreno
- Departamento de Biología de Sistemas
- Facultad de Medicina y Ciencias de la Salud
- Universidad de Alcalá
- Madrid
- Spain
| | - Elena de la Torre-Rubio
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Ana M. Bajo
- Departamento de Biología de Sistemas
- Facultad de Medicina y Ciencias de la Salud
- Universidad de Alcalá
- Madrid
- Spain
| | - Lourdes Gude
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Tomás Cuenca
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Eva Royo
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
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Miller M, Tshuva EY. Racemic vs. enantiopure inert Ti(iv) complex of a single diaminotetrakis(phenolato) ligand in anticancer activity toward human drug-sensitive and -resistant cancer cell lines. RSC Adv 2018; 8:39731-39734. [PMID: 30713687 PMCID: PMC6333245 DOI: 10.1039/c8ra08925f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 11/21/2018] [Indexed: 12/16/2022] Open
Abstract
A tetrakis(phenolato) Ti(iv) complex was synthesized in racemic and optically pure form, exhibiting high hydrolytic stability, and similar cytotoxicity for all stereochemical forms on HT-29 and A2780 cancer cells. Higher activity of the racemate on drug-resistant A2780cp and A2780adr lines implies a beneficial activity of both enantiomers rendering enantiomeric resolution unnecessary.
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Affiliation(s)
- Maya Miller
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
| | - Edit Y Tshuva
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
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7
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Miller M, Tshuva EY. Synthesis of Pure Enantiomers of Titanium(IV) Complexes with Chiral Diaminobis(phenolato) Ligands and Their Biological Reactivity. Sci Rep 2018; 8:9705. [PMID: 29946136 PMCID: PMC6018713 DOI: 10.1038/s41598-018-27735-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 06/08/2018] [Indexed: 12/21/2022] Open
Abstract
Racemic and enantiomerically pure titanium(IV) complexes with ortho-brominated or para-nitrated chiral diaminobis(phenolato) ligands were prepared with NH and NMe cyclohexyldiamino bridges through ligand to metal chiral induction. The hydrolytic behavior of the complexes was evaluated, identifying the N-methylated complex as the most stable. A representative NH complex hydrolyzed to first give a dimeric structure in solution as deduced by NMR diffusion measurements, followed by formation of clusters with higher nuclearity, as was supported by X-ray characterization of a tetranuclear cluster obtained in trace amounts following 30 days in water solutions. The cytotoxicity of the enantiomerically pure and racemic complexes was measured on HT-29 human colon cancer cell line based on the MTT assay; all stereochemical configurations of the N-methylated complex were inactive, whereas for the NH complexes, the racemic mixtures were mostly inactive but the pure enantiomers exhibited similarly high cytotoxicity, supporting a polynuclear active species. Analysis of the two enantiomers of the most active brominated complex for their cytotoxicity on human ovarian A2780, cisplatin resistant A2780cp and multi-drug-resistant A2780adr cell lines as well as for their apoptosis induction on the A2780 line revealed similar reactivity, supporting a similar mechanism for the two enantiomers.
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Affiliation(s)
- Maya Miller
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Edit Y Tshuva
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel.
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8
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Titanocene binding to oligonucleotides. J Inorg Biochem 2018; 184:1-7. [PMID: 29635096 DOI: 10.1016/j.jinorgbio.2018.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/26/2018] [Accepted: 03/22/2018] [Indexed: 11/23/2022]
Abstract
The binding of titanocene to DNA and RNA was examined by means of electrospray mass spectrometry. Titanocene served as a model for its therapeutically active derivatives. The binding preferences were probed by competition experiments with oligonucleotides of varying nucleobase compositions and sequences. Results from competition experiments revealed a generally increased preference for the binding to phosphate groups adjacent to thymidines, which is affected by the nucleobase sequence of T-rich oligonucleotides. More detailed information about the binding sites was obtained from tandem mass spectrometric experiments. The binding of the transition metal coordination center significantly altered the fragment ion patterns of the oligonucleotides. RNA was found to be less prone to adduct formation, due to intramolecular interactions. The findings from experiments on DNA and RNA were complemented by the examination of backbone- and ribose-modified oligonucleotides.
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Liu J, Ming B, Gong GH, Wang D, Bao GL, Yu LJ. Current research on anti-breast cancer synthetic compounds. RSC Adv 2018. [DOI: 10.1039/c7ra12912b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Breast cancer (BC) is the most common cancer for females and its incidence tends to increase year by year.
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Affiliation(s)
- Jia Liu
- Medicinal Chemistry and Pharmacology Institute
- Inner Mongolia University for Nationalities
- Tongliao
- People's Republic of China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System
| | - Bian Ming
- Medicinal Chemistry and Pharmacology Institute
- Inner Mongolia University for Nationalities
- Tongliao
- People's Republic of China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System
| | - Guo-Hua Gong
- First Clinical Medical of Inner Mongolia University for Nationalities
- Tongliao
- People's Republic of China
| | - Di Wang
- Medicinal Chemistry and Pharmacology Institute
- Inner Mongolia University for Nationalities
- Tongliao
- People's Republic of China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System
| | - Gui-Lan Bao
- Medicinal Chemistry and Pharmacology Institute
- Inner Mongolia University for Nationalities
- Tongliao
- People's Republic of China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System
| | - Li-Jun Yu
- Medicinal Chemistry and Pharmacology Institute
- Inner Mongolia University for Nationalities
- Tongliao
- People's Republic of China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System
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Eberle RP, Hari Y, Schürch S. Specific Interactions of Antitumor Metallocenes with Deoxydinucleoside Monophosphates. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:1901-1909. [PMID: 28500584 DOI: 10.1007/s13361-017-1697-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/13/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
Bent metallocenes Cp2MCl2 (M = Ti, V, Nb, Mo) are known to exhibit cytotoxic activity against a variety of cancer types. Though the mechanism of action is not fully understood yet, the accumulation of the metal ions in the nucleus points towards DNA as one of the primary targets. A set of eight deoxydinucleoside monophosphates was used to study the adduct yields with metallocenes and cisplatin. The binding affinities are reflected by the relative intensities of the adducts and were found to follow the order of Pt > V > Ti > Mo (no adducts were detected with Nb). High-resolution tandem mass spectrometry was applied to locate the binding patterns in the deoxydinucleoside monophosphates. Whereas cisplatin binds to the soft nitrogen atoms in the purine nucleobases, the metallocenes additionally interact with the hard phosphate oxygen, which is in good agreement with the hard and soft (Lewis) acids and bases (HSAB) concept. However, the binding specificities were found to be unique for each metallocene. The hard Lewis acids titanium and vanadium predominantly bind to the deprotonated phosphate oxygen, whereas molybdenum, an intermediate Lewis acid, preferentially interacts with the nucleobases. Nucleobases comprise alternative binding sites for titanium and vanadium, presumably oxygen atoms for the first and nitrogen atoms for the latter. In summary, the intrinsic binding behavior of the different metallodrugs is reflected by the gas-phase dissociation of the adducts. Consequently, MS/MS can provide insights into therapeutically relevant interactions between metallodrugs and their cellular targets. Graphical Abstract ᅟ.
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Affiliation(s)
- Rahel P Eberle
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
| | - Yvonne Hari
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
| | - Stefan Schürch
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland.
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Mui YF, Fernández-Gallardo J, Elie BT, Gubran A, Maluenda I, Sanaú M, Navarro O, Contel M. Titanocene-Gold Complexes Containing N-Heterocyclic Carbene Ligands Inhibit Growth of Prostate, Renal, and Colon Cancers in Vitro. Organometallics 2016; 35:1218-1227. [PMID: 27182101 PMCID: PMC4863200 DOI: 10.1021/acs.organomet.6b00051] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 12/01/2022]
Abstract
![]()
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 titanium and
gold metals (1:1 ratio) in PC3 prostate cancer cells was demonstrated
for the selected compound 5a, indicating the robustness
of the heterometallic compound in vitro. We describe here preliminary
mechanistic data involving studies on the interaction of selected
mono- and bimetallic compounds with plasmid (pBR322) used as a model
nucleic acid and the inhibition of thioredoxin reductase in PC3 prostate
cancer cells. The heterometallic compounds, which are highly apoptotic,
exhibit strong antimigratory effects on the prostate cancer cell line
PC3.
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Affiliation(s)
- Yiu Fung Mui
- Department of Chemistry, Brooklyn College, The City University of New York, Brooklyn, New York 11210, United States; Chemistry and Biology Ph.D. Programs, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Jacob Fernández-Gallardo
- Department of Chemistry, Brooklyn College, The City University of New York , Brooklyn, New York 11210, United States
| | - Benelita T Elie
- Department of Chemistry, Brooklyn College, The City University of New York, Brooklyn, New York 11210, United States; Chemistry and Biology Ph.D. Programs, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Ahmed Gubran
- Department of Chemistry, Brooklyn College, The City University of New York , Brooklyn, New York 11210, United States
| | - Irene Maluenda
- Department of Chemistry, University of Sussex , Falmer, Brighton BN1 9QJ, U.K
| | - Mercedes Sanaú
- Departamento de Química Inorgánica, Universidad de Valencia , Burjassot, Valencia 46100, Spain
| | - Oscar Navarro
- Department of Chemistry, University of Sussex , Falmer, Brighton BN1 9QJ, U.K
| | - María Contel
- Department of Chemistry, Brooklyn College, The City University of New York, Brooklyn, New York 11210, United States; Chemistry and Biology Ph.D. Programs, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, New York 10016, United States; Chemistry and Biology Ph.D. Programs, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
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