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Grabher P, Kapitza P, Hörmann N, Scherfler A, Hermann M, Zwerger M, Varbanov HP, Kircher B, Baecker D, Gust R. Development of Cytotoxic GW7604-Zeise's Salt Conjugates as Multitarget Compounds with Selectivity for Estrogen Receptor- Positive Tumor Cells. J Med Chem 2024; 67:4870-4888. [PMID: 38478882 PMCID: PMC10983001 DOI: 10.1021/acs.jmedchem.3c02454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/07/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024]
Abstract
(E/Z)-3-(4-((E)-1-(4-Hydroxyphenyl)-2-phenylbut-1-enyl)phenyl)acrylic acid (GW7604) as a carrier was esterified with alkenols of various lengths and coordinated through the ethylene moiety to PtCl3, similar to Zeise's salt (K[PtCl3(C2H4)]). The resulting GW7604-Alk-PtCl3 complexes (Alk = Prop, But, Pent, Hex) degraded in aqueous solution only by exchange of the chlorido ligands. For example, GW7604-Pent-PtCl3 coordinated the amino acid alanine in the cell culture medium, bound the isolated nucleotide 5'-GMP, and interacted with the DNA (empty plasmid pSport1). It accumulated in estrogen receptor (ER)-positive MCF-7 cells primarily via cytosolic vesicles, while it was only marginally taken up in ER-negative SKBr3 cells. Accordingly, GW7604-Pent-PtCl3 and related complexes were inactive in SKBr3 cells. GW7604-Pent-PtCl3 showed high affinity to ERα and ERβ without mediating agonistic or ER downregulating properties. GW7604-Alk ligands also increased the cyclooxygenase (COX)-2 inhibitory potency of the complexes. In contrast to Zeise's salt, the GW7604-Alk-PtCl3 complexes inhibited COX-1 and COX-2 to the same extent.
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Affiliation(s)
- Patricia Grabher
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular
Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Paul Kapitza
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular
Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Nikolas Hörmann
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular
Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Amelie Scherfler
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular
Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Martin Hermann
- Department
of Anesthesiology & Critical Care Medicine, Medical University Innsbruck, Anichstraße 35, Innsbruck A-6020, Austria
| | - Michael Zwerger
- Department
of Pharmacognosy, Institute of Pharmacy, Center for Molecular Biosciences
Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Hristo P. Varbanov
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular
Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Brigitte Kircher
- Department
of Internal Medicine V, Haematology & Oncology, Immunobiology
and Stem Cell Laboratory, Medical University
Innsbruck, Anichstraße
35, Innsbruck A-6020, Austria
- Tyrolean
Cancer Research Institute, Innrain 66, Innsbruck A-6020, Austria
| | - Daniel Baecker
- Department
of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Straße
2 + 4, Berlin D-14195, Germany
| | - Ronald Gust
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular
Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
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Ferraro MG, Piccolo M, Misso G, Santamaria R, Irace C. Bioactivity and Development of Small Non-Platinum Metal-Based Chemotherapeutics. Pharmaceutics 2022; 14:pharmaceutics14050954. [PMID: 35631543 PMCID: PMC9147010 DOI: 10.3390/pharmaceutics14050954] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023] Open
Abstract
Countless expectations converge in the multidisciplinary endeavour for the search and development of effective and safe drugs in fighting cancer. Although they still embody a minority of the pharmacological agents currently in clinical use, metal-based complexes have great yet unexplored potential, which probably hides forthcoming anticancer drugs. Following the historical success of cisplatin and congeners, but also taking advantage of conventional chemotherapy limitations that emerged with applications in the clinic, the design and development of non-platinum metal-based chemotherapeutics, either as drugs or prodrugs, represents a rapidly evolving field wherein candidate compounds can be fine-tuned to access interactions with druggable biological targets. Moving in this direction, over the last few decades platinum family metals, e.g., ruthenium and palladium, have been largely proposed. Indeed, transition metals and molecular platforms where they originate are endowed with unique chemical and biological features based on, but not limited to, redox activity and coordination geometries, as well as ligand selection (including their inherent reactivity and bioactivity). Herein, current applications and progress in metal-based chemoth are reviewed. Converging on the recent literature, new attractive chemotherapeutics based on transition metals other than platinum—and their bioactivity and mechanisms of action—are examined and discussed. A special focus is committed to anticancer agents based on ruthenium, palladium, rhodium, and iridium, but also to gold derivatives, for which more experimental data are nowadays available. Next to platinum-based agents, ruthenium-based candidate drugs were the first to reach the stage of clinical evaluation in humans, opening new scenarios for the development of alternative chemotherapeutic options to treat cancer.
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Affiliation(s)
- Maria Grazia Ferraro
- BioChemLab, Department of Pharmacy, School of Medicine and Surgery, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy; (M.G.F.); (M.P.); (R.S.)
| | - Marialuisa Piccolo
- BioChemLab, Department of Pharmacy, School of Medicine and Surgery, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy; (M.G.F.); (M.P.); (R.S.)
| | - Gabriella Misso
- Department of Precision Medicine, School of Medicine and Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
- Correspondence: (G.M.); (C.I.)
| | - Rita Santamaria
- BioChemLab, Department of Pharmacy, School of Medicine and Surgery, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy; (M.G.F.); (M.P.); (R.S.)
| | - Carlo Irace
- BioChemLab, Department of Pharmacy, School of Medicine and Surgery, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy; (M.G.F.); (M.P.); (R.S.)
- Correspondence: (G.M.); (C.I.)
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Schoch S, Iacopini D, Dalla Pozza M, Di Pietro S, Degano I, Gasser G, Di Bussolo V, Marchetti F. Tethering Carbohydrates to the Vinyliminium Ligand of Antiproliferative Organometallic Diiron Complexes. Organometallics 2022; 41:514-526. [PMID: 35308582 PMCID: PMC8924928 DOI: 10.1021/acs.organomet.1c00519] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Indexed: 12/23/2022]
Affiliation(s)
- Silvia Schoch
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
| | - Dalila Iacopini
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
| | - Maria Dalla Pozza
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France
| | | | - Ilaria Degano
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France
| | | | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
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Baecker D, Sagasser J, Karaman S, Hörmann AA, Gust R. Development of methylated cobalt-alkyne complexes with selective cytotoxicity against COX-positive cancer cell lines. Arch Pharm (Weinheim) 2021; 355:e2100408. [PMID: 34893997 DOI: 10.1002/ardp.202100408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 11/06/2022]
Abstract
Derivatives of the cytotoxic cyclooxygenase (COX) inhibitor [(prop-2-ynyl)-2-acetoxybenzoate]dicobalthexacarbonyl (Co-ASS) with a methyl group in the 3, 4, 5, or 6 position of the acetylsalicylic acid (ASS) scaffold were synthesized with the aim to achieve enhanced selectivity for COX-2. From this modification, a higher specificity for COX-2-expressing tumors is expected, preventing COX-1-mediated side effects. The cobalt-alkyne complexes were tested for their COX-inhibitory and antiproliferative properties as well as their cellular uptake. Methylation reduced the effects at the isolated COX-1, whereas those at the isolated COX-2 remained nearly constant compared to Co-ASS. In cellular systems, the new compounds showed superior cytotoxicity toward the COX-positive HT-29 colon carcinoma cells than cisplatin. The reduced growth-inhibitory potency in T-24 cells, which express distinctly fewer COX enzymes (COX-1/COX-2 = 50/1) than HT-29 cells (COX-1/COX-2 = 50/50), and the only marginal activity in COX-negative MCF-7 breast cancer cells point to an interference in the arachidonic acid cascade through COX-2 inhibition as part of the mode of action, especially as the cellular uptake was even higher in MCF-7 cells than in T-24 cells. These findings clearly demonstrate that the methylated cobalt-alkyne complexes possess promising potential for further development as reasonable alternatives to the limited platinum-based antitumor agents.
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Affiliation(s)
- Daniel Baecker
- Department of Pharmaceutical Chemistry, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
| | - Jessica Sagasser
- Department of Pharmaceutical Chemistry, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
| | - Serhat Karaman
- Department of Pharmaceutical Chemistry, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
| | - Anton Amadeus Hörmann
- Department of Pharmaceutical Chemistry, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
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Mir JM, Malik BA, Khan MW, Maurya RC. A novel oxovanadium(IV) complex containing pyranone appended glucosamine Schiff base: synthesis, characterization and DFT evaluation. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1833327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jan Mohammad Mir
- Coordination, Metallopharmaceutical and Computational Chemistry Laboratory, Department of PG Studies and Research in Chemistry and Pharmacy, RD University, Jabalpur, India
- Department of Chemistry, Islamic University of Science and Technology, Awantipora, India
| | - Bashir Ahmad Malik
- Coordination, Metallopharmaceutical and Computational Chemistry Laboratory, Department of PG Studies and Research in Chemistry and Pharmacy, RD University, Jabalpur, India
- Department of Chemistry, Islamic University of Science and Technology, Awantipora, India
| | - Mohd Washid Khan
- Coordination, Metallopharmaceutical and Computational Chemistry Laboratory, Department of PG Studies and Research in Chemistry and Pharmacy, RD University, Jabalpur, India
| | - Ram Charitra Maurya
- Coordination, Metallopharmaceutical and Computational Chemistry Laboratory, Department of PG Studies and Research in Chemistry and Pharmacy, RD University, Jabalpur, India
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Bononi G, Iacopini D, Cicio G, Di Pietro S, Granchi C, Di Bussolo V, Minutolo F. Glycoconjugated Metal Complexes as Cancer Diagnostic and Therapeutic Agents. ChemMedChem 2020; 16:30-64. [PMID: 32735702 DOI: 10.1002/cmdc.202000456] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Indexed: 12/15/2022]
Abstract
The possibility of selectively delivering metal complexes to a defined cohort of cells on the basis of their metabolic features is a highly challenging goal, which may be extremely useful for a series of purposes, including diagnosis and therapy of pathological states, such as cancer. Tumor cells display augmented requests for carbohydrates and, in particular, for glucose in order to sustain their high proliferation rate, which causes an increased glycolytic process (Warburg effect). Since several metal complexes display diagnostic and/or therapeutic properties, their conjugation to carbohydrate portions often induce their preferential accumulation in cancer cells, similarly to what is observed with fluorodeoxyglucose (FDG). In this review we have considered the latest developments of glycoconjugates containing metal complexes in their structures. These compounds are classified as diagnostic or therapeutic agents and are further systematically discussed on the basis of the metal atom they contain. Several diagnostic techniques are possible with these probes, since, depending on the metal species included in their structures, they may be employed in nuclear medicine (PET, SPECT), magnetic resonance imaging, luminescence and phosphorescence. At the same time, the lack of selective cytotoxicity displayed by several metal-based chemotherapeutic agents, may also be solved by the conjugation of these agents to carbohydrate portions. Overall, data so far available reveal the great potential of this chemical class in the early detection and in the cure of severe neoplastic diseases, which still needs to be fully explored in the clinic.
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Affiliation(s)
- Giulia Bononi
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 33, 56126, Pisa, Italy
| | - Dalila Iacopini
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via G. Moruzzi 13, 56124, Pisa, Italy
| | - Gaspare Cicio
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 33, 56126, Pisa, Italy.,Current address: Menarini Ricerche S.p.A. -, Laboratori di Pisa, Via Livornese 897, 56122, Pisa, Italy
| | - Sebastiano Di Pietro
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 33, 56126, Pisa, Italy
| | - Carlotta Granchi
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 33, 56126, Pisa, Italy
| | - Valeria Di Bussolo
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via G. Moruzzi 13, 56124, Pisa, Italy
| | - Filippo Minutolo
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 33, 56126, Pisa, Italy
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Gascón E, Maisanaba S, Otal I, Valero E, Repetto G, Jones PG, Jiménez J. (Amino)cyclophosphazenes as Multisite Ligands for the Synthesis of Antitumoral and Antibacterial Silver(I) Complexes. Inorg Chem 2020; 59:2464-2483. [PMID: 31984738 DOI: 10.1021/acs.inorgchem.9b03334] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The reactivity of the multisite (amino)cyclotriphosphazene ligands, [N3P3(NHCy)6] and [N3P3(NHCy)3(NMe2)3], has been explored in order to obtain silver(I) metallophosphazene complexes. Two series of cationic silver(I) metallophosphazenes were obtained and characterized: [N3P3(NHCy)6{AgL}n](TfO)n [n = 2, L = PPh3 (2), PPh2Me (4); n = 3, L = PPh3 (3), PPh2Me (5), TPA (TPA = 1,3,5-triaza-7-phosphaadamantane, 6)] and nongem-trans-[N3P3(NHCy)3(NMe2)3{AgL}n](TfO)n [n = 2, L = PPh3 (7), PPh2Me (9); n = 3, L = PPh3 (8), PPh2Me (10)]. 5, 7, and 9 have also been characterized by single-crystal X-ray diffraction, thereby allowing key bonding information to be obtained. Compounds 2-6, 9, and 10 were screened for in vitro cytotoxic activity against two tumor human cell lines, MCF7 (breast adenocarcinoma) and HepG2 (hepatocellular carcinoma), and for antimicrobial activity against five bacterial species including Gram-positive, Gram-negative, and Mycobacteria strains. Both the IC50 and MIC values revealed excellent biological activity for these metal complexes, compared with their precursors and cisplatin and also AgNO3 and silver sulfadiazine, respectively. Both IC50 and MIC values are among the lowest values found for any silver derivatives against the cell lines and bacterial strains used in this work. The structure-activity relationships were clear. The most cytotoxic and antimicrobial derivatives were those with the triphenylphosphane and [N3P3(NHCy)6] ligands. A significant improvement in the activity was also observed upon a rise in the number of silver atoms linked to the phosphazene ring.
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Affiliation(s)
- Elena Gascón
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea , Universidad de Zaragoza-CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain
| | - Sara Maisanaba
- Departamento de Biología Molecular e Ingeniería Bioquímica, Área de Toxicología , Universidad Pablo de Olavide , Ctra. Utrera, Km 1 , 41013 Sevilla , Spain
| | - Isabel Otal
- Grupo de Genética de Micobacterias, Departamento de Microbiología, Medicina Preventiva y Salud Pública , Universidad de Zaragoza , Zaragoza 50009 , Spain.,Instituto de Salud Carlos III , CIBER de Enfermedades Respiratorias , E-28029 Madrid , Spain
| | - Eva Valero
- Departamento de Biología Molecular e Ingeniería Bioquímica, Área Nutrición y Bromatología , Universidad Pablo de Olavide , Ctra. Utrera, Km 1 , 41013 Sevilla , Spain
| | - Guillermo Repetto
- Departamento de Biología Molecular e Ingeniería Bioquímica, Área de Toxicología , Universidad Pablo de Olavide , Ctra. Utrera, Km 1 , 41013 Sevilla , Spain
| | - Peter G Jones
- Institut für Anorganische und Analytische Chemie , Technische Universität Braunschweig , Hagenring 30 , D-38106 Braunschweig , Germany
| | - Josefina Jiménez
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea , Universidad de Zaragoza-CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain
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Mármol I, Castellnou P, Alvarez R, Gimeno MC, Rodríguez-Yoldi MJ, Cerrada E. Alkynyl Gold(I) complexes derived from 3-hydroxyflavones as multi-targeted drugs against colon cancer. Eur J Med Chem 2019; 183:111661. [PMID: 31546196 DOI: 10.1016/j.ejmech.2019.111661] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/20/2019] [Accepted: 08/29/2019] [Indexed: 01/26/2023]
Abstract
The design of multi-targeted drugs has gained considerable interest in the last decade thanks to their advantages in the treatment of different diseases, including cancer. The simultaneous inhibition of selected targets from cancerous cells to induce their death represents an attractive objective for the medicinal chemist in order to enhance the efficiency of chemotherapy. In the present work, several alkynyl gold(I) phosphane complexes derived from 3-hydroxyflavones active against three human cancer cell lines, colorectal adenocarcinoma Caco-2/TC7, breast adenocarcinoma MCF-7 and hepatocellular carcinoma HepG2, have been synthesized and characterized. Moreover, these compounds display high selective index values towards differentiated Caco-2 cells, which are considered as a model of non-cancerous cells. The antiproliferative effect of the most active complexes [Au(L2b)PPh3] (3b) and [Au(L2c)PTA] (4c) on Caco-2 cells, seems to be mediated by the inhibition of the enzyme cyclooxygenase-1/2 and alteration of the activities of the redox enzymes thioredoxin reductase and glutathione reductase. Both complexes triggered cell death by apoptosis, alterations in cell cycle progression and increased of ROS production. These results provide support for the suggestion that multi-targeting approach involving the interaction with cyclooxygenase-1/2 and the redox enzymes that increases ROS production, enhances cell death in vitro. All these results indicate that complexes [Au(L2b)PPh3] and [Au(L2c)PTA] are promising antiproliferative agents for further anticancer drug development.
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Affiliation(s)
- Inés Mármol
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009, Zaragoza, Spain; Departamento de Farmacología y Fisiología, Unidad de Fisiología, Universidad de Zaragoza, CIBERobn, IIS Aragón, IA2, 50013, Zaragoza, Spain
| | - Pilar Castellnou
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009, Zaragoza, Spain
| | - Raquel Alvarez
- Departamento de Farmacología y Fisiología, Unidad de Fisiología, Universidad de Zaragoza, CIBERobn, IIS Aragón, IA2, 50013, Zaragoza, Spain
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009, Zaragoza, Spain
| | - M Jesús Rodríguez-Yoldi
- Departamento de Farmacología y Fisiología, Unidad de Fisiología, Universidad de Zaragoza, CIBERobn, IIS Aragón, IA2, 50013, Zaragoza, Spain.
| | - Elena Cerrada
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009, Zaragoza, Spain.
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Kowalski K. Insight into the Biological Activity of Organometallic Acetylsalicylic Acid (Aspirin) Derivatives. Chempluschem 2019; 84:403-415. [DOI: 10.1002/cplu.201900086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/27/2019] [Indexed: 01/04/2023]
Affiliation(s)
- Konrad Kowalski
- Faculty of Chemistry Department of Organic ChemistryUniversity of Łódź Tamka 12 91-403 Łódź Poland
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Renfrew AK, O'Neill ES, Hambley TW, New EJ. Harnessing the properties of cobalt coordination complexes for biological application. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.027] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Kaczmarek R, Korczyński D, Królewska‐Golińska K, Wheeler KA, Chavez FA, Mikus A, Dembinski R. Organometallic Nucleosides: Synthesis and Biological Evaluation of Substituted Dicobalt Hexacarbonyl 2'-Deoxy-5-oxopropynyluridines. ChemistryOpen 2018; 7:237-247. [PMID: 29531887 PMCID: PMC5838391 DOI: 10.1002/open.201700168] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 01/16/2023] Open
Abstract
Reactions of dicobalt octacarbonyl [Co2(CO)8] with 2'-deoxy-5-oxopropynyluridines and related compounds gave dicobalt hexacarbonyl nucleoside complexes (83-31 %). The synthetic outcomes were confirmed by X-ray structure determination of dicobalt hexacarbonyl 2'-deoxy-5-(4-hydroxybut-1-yn-1-yl)uridine, which exhibits intermolecular hydrogen bonding between a modified base and ribose. The electronic structure of this compound was characterized by the DFT calculations. The growth inhibition of HeLa and K562 cancer cell lines by organometallic nucleosides was examined and compared to that by alkynyl nucleoside precursors. Coordination of the dicobalt carbonyl moiety to the 2'-deoxy-5-alkynyluridines led to a significant increase in the cytotoxic potency. The cobalt compounds displayed antiproliferative activities with median inhibitory values (IC50) in the range of 20 to 80 μm for the HeLa cell line and 18 to 30 μm for the K562 cell line. Coordination of an acetyl-substituted cobalt nucleoside was expanded by using the 1,1-bis(diphenylphosphino)methane (dppm) ligand, which exhibited cytotoxicity at comparable levels. The formation of reactive oxygen species in the presence of cobalt compounds was determined in K562 cells. The results indicate that the mechanism of action for most antiproliferative cobalt compounds may be related to the induction of oxidative stress.
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Affiliation(s)
- Renata Kaczmarek
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Dariusz Korczyński
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Karolina Królewska‐Golińska
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Kraig A. Wheeler
- Department of ChemistryWhitworth University300 W. Hawthorne Rd.SpokaneWA99251USA
| | - Ferman A. Chavez
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
| | - Agnieszka Mikus
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
| | - Roman Dembinski
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
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Al-Jaroudi SS, Altaf M, Seliman AA, Yadav S, Arjmand F, Alhoshani A, Korashy HM, Ahmad S, Isab AA. Synthesis, characterization, in vitro cytotoxicity and DNA interaction study of phosphanegold(I) complexes with dithiocarbamate ligands. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.04.040] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Zhou X, Qin X, Gong T, Zhang ZR, Fu Y. d-Fructose Modification Enhanced Internalization of Mixed Micelles in Breast Cancer Cells via GLUT5 Transporters. Macromol Biosci 2017; 17. [PMID: 28346751 DOI: 10.1002/mabi.201600529] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/14/2017] [Indexed: 11/09/2022]
Abstract
d-Fructose modified poly(ε-caprolactone)-polyethylene glycol (PCL-PEG-Fru) diblock amphiphile is synthesized via Cu(I)-catalyzed click chemistry, which self-assembles with D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) into PCL-PEG-Fru/TPGS mixed micelles (PPF MM). It has been proven that glucose transporter (GLUT)5 is overexpressed in MCF-7 cells other than L929 cells. In this study, PPF MM exhibit a significantly higher uptake efficiency than fructose-free PCL-PEG-N3 /TPGS mixed micelles in both 2D MCF-7 cells and 3D tumor spheroids. Also, the presence of free d-fructose competitively inhibits the internalization of PPF MM in MCF-7 cells other than L929 cells. PPF MM show selective tumor accumulation in MCF-7 breast tumor bearing mice xenografts. Taken together, PPF MM represent a promising nanoscale carrier system to achieve GLUT5-mediated cell specific delivery in cancer therapy.
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Affiliation(s)
- Xu Zhou
- Key Laboratory of Drug Targeting and Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Xianyan Qin
- Key Laboratory of Drug Targeting and Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Tao Gong
- Key Laboratory of Drug Targeting and Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Zhi-Rong Zhang
- Key Laboratory of Drug Targeting and Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yao Fu
- Key Laboratory of Drug Targeting and Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
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Karaca Ö, Meier-Menches SM, Casini A, Kühn FE. On the binding modes of metal NHC complexes with DNA secondary structures: implications for therapy and imaging. Chem Commun (Camb) 2017; 53:8249-8260. [DOI: 10.1039/c7cc03074f] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This perspective review aims at providing an overview of the most representative examples of bioactive metal NHC complexes reacting with nucleic acidsviadifferent binding modes.
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Affiliation(s)
- Özden Karaca
- Molecular Catalysis
- Department of Chemistry
- Catalysis Research Center
- Technische Universität München
- 85747 Garching bei München
| | | | - Angela Casini
- School of Chemistry
- Cardiff University
- CF103AT Cardiff
- UK
- Institute of Advanced Studies
| | - Fritz E. Kühn
- Molecular Catalysis
- Department of Chemistry
- Catalysis Research Center
- Technische Universität München
- 85747 Garching bei München
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Munteanu CR, Suntharalingam K. Advances in cobalt complexes as anticancer agents. Dalton Trans 2016; 44:13796-808. [PMID: 26148776 DOI: 10.1039/c5dt02101d] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The evolution of resistance to traditional platinum-based anticancer drugs has compelled researchers to investigate the cytostatic properties of alternative transition metal-based compounds. The anticancer potential of cobalt complexes has been extensively studied over the last three decades, and much time has been devoted to understanding their mechanisms of action. This perspective catalogues the development of antiproliferative cobalt complexes, and provides an in depth analysis of their mode of action. Early studies on simple cobalt coordination complexes, Schiff base complexes, and cobalt-carbonyl clusters will be documented. The physiologically relevant redox properties of cobalt will be highlighted and the role this plays in the preparation of hypoxia selective prodrugs and imaging agents will be discussed. The use of cobalt-containing cobalamin as a cancer specific delivery agent for cytotoxins will also be described. The work summarised in this perspective shows that the biochemical and biophysical properties of cobalt-containing compounds can be fine-tuned to produce new generations of anticancer agents with clinically relevant efficacies.
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Altaf M, Monim-ul-Mehboob M, Seliman AA, Sohail M, Wazeer MI, Isab AA, Li L, Dhuna V, Bhatia G, Dhuna K. Synthesis, characterization and anticancer activity of gold(I) complexes that contain tri-tert-butylphosphine and dialkyl dithiocarbamate ligands. Eur J Med Chem 2015; 95:464-72. [DOI: 10.1016/j.ejmech.2015.03.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 03/08/2015] [Accepted: 03/09/2015] [Indexed: 10/23/2022]
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17
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Altaf M, Monim-ul-Mehboob M, Isab AA, Dhuna V, Bhatia G, Dhuna K, Altuwaijri S. The synthesis, spectroscopic characterization and anticancer activity of new mono and binuclear phosphanegold(i) dithiocarbamate complexes. NEW J CHEM 2015. [DOI: 10.1039/c4nj00747f] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four new gold(i) complexes were synthesized and characterized. The structure of [t-Bu3PAuS2CN(C7H7)2] was determined by X-ray diffraction.
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Affiliation(s)
- Muhammad Altaf
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - M. Monim-ul-Mehboob
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Anvarhusein A. Isab
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | | | | | - Kshitija Dhuna
- Department of Molecular Biology and Biochemistry
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Saleh Altuwaijri
- Clinical Research Laboratory
- SAAD Research Development Center
- SAAD Specialist Hospital
- Al-Khobar 31952
- Saudi Arabia
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18
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Sista P, Ghosh K, Martinez JS, Rocha RC. Metallo-Biopolymers: Conjugation Strategies and Applications. POLYM REV 2014. [DOI: 10.1080/15583724.2014.913063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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19
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Miyazaki A, Asanuma M, Dodo K, Egami H, Sodeoka M. A "catch-and-release" protocol for alkyne-tagged molecules based on a resin-bound cobalt complex for peptide enrichment in aqueous media. Chemistry 2014; 20:8116-28. [PMID: 24788842 DOI: 10.1002/chem.201400056] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Indexed: 01/09/2023]
Abstract
The development of new and mild protocols for the specific enrichment of biomolecules is of significant interest from the perspective of chemical biology. A cobalt-phosphine complex immobilised on a solid-phase resin has been found to selectively bind to a propargyl carbamate tag, that is, "catch", under dilute aqueous conditions (pH 7) at 4 °C. Upon acidic treatment of the resulting resin-bound alkyne-cobalt complex, the Nicholas reaction was induced to "release" the alkyne-tagged molecule from the resin as a free amine. Model studies revealed that selective enrichment of the alkyne-tagged molecule could be achieved with high efficiency at 4 °C. The proof-of-concept was applied to an alkyne-tagged amino acid and dipeptide. Studies using an alkyne-tagged dipeptide proved that this protocol is compatible with various amino acids bearing a range of functionalities in the side-chain. In addition, selective enrichment and detection of an amine derived from the "catch and release" of an alkyne-tagged dipeptide in the presence of various peptides has been accomplished under highly dilute conditions, as determined by mass spectrometry.
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Affiliation(s)
- Ayako Miyazaki
- Sodeoka Live Cell Chemistry Project, ERATO, Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan) and Synthetic Organic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Current address: Institute of Transformative, Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 (Japan)
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Gross A, Habig D, Metzler-Nolte N. Synthesis and Structure-Activity Relationship Study of Organometallic Bioconjugates of the Cyclic Octapeptide Octreotate. Chembiochem 2013; 14:2472-9. [DOI: 10.1002/cbic.201300450] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Indexed: 12/25/2022]
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Strong inhibition of thioredoxin reductase by highly cytotoxic gold(I) complexes. DNA binding studies. J Inorg Biochem 2013; 130:32-7. [PMID: 24157605 DOI: 10.1016/j.jinorgbio.2013.09.019] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 09/30/2013] [Accepted: 09/30/2013] [Indexed: 12/11/2022]
Abstract
Biological properties of a series of aminophosphine-thiolate gold(I) complexes [Au(SR)(PPh2NHpy)] [Ph2PNHpy=2-(diphenylphosphinoamino)pyridine; HSR=2-mercaptopyridine (2-HSpy) (3), 2-mercaptonicotinic acid (2-H2-mna) (4), 2-thiouracil (2-HTU) (5) or 2-thiocytosine (2-HTC) (6)] and [Au(SR){PPh2NH(Htrz)}] [Ph2PNH(Htrz)=3-(diphenylphosphinoamino)-1,2,4-triazole]; HSR=2-mercaptopyridine (2-HSpy) (7), 2-thiocytosine (2-HTC) (8) or 6-thioguanine (6-HTG) (9) have been studied. Their antitumor properties have been tested in vitro against two tumor human cell lines, HeLa (derived from cervical cancer) and MCF-7 (derived from breast cancer), using a metabolic activity test (3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl tetrazolium bromide, MTT). Some of them showed excellent cytotoxic activity. With the aim to obtain more information about the mechanisms of action of these derivatives, the interactions of complexes 3, 5, 7 and 9 with thioredoxin reductase in HeLa cells were studied. They showed a potent inhibition of thioredoxin reductase activity. In order to complete this study, interactions of the complexes with calf thymus (CT-) DNA and with different bacterial DNAs, namely the plasmid pEMBL9 and the promoter region of the furA (ferric uptake regulator A) gene from Anabaena sp. PCC 7120 were investigated. Although interactions of complexes with CT-DNA have been verified, none of them cause significant changes in its structure.
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Zanellato I, Bonarrigo I, Ravera M, Gabano E, Gust R, Osella D. The hexacarbonyldicobalt derivative of aspirin acts as a CO-releasing NSAID on malignant mesothelioma cells. Metallomics 2013; 5:1604-13. [PMID: 24057048 DOI: 10.1039/c3mt00117b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The antiproliferative activity of the aspirin derivative [2-acetoxy-(2-propynyl)benzoate]hexacarbonyldicobalt (Co-ASS) and its analogue hexacarbonyl[μ-(2-ethylphenyl)methanol]dicobalt (Co-EPM) was investigated on malignant pleural mesothelioma (MPM) cell lines, having an epithelioid or a sarcomatoid phenotype. In sarcomatoid cell lines Co-ASS was more potent than Co-EPM and the prototypal metallo-drug cisplatin, and induced cell death through the intrinsic apoptotic pathway, associated with a strong NF-κB inhibition. In contrast, both Co-ASS and Co-EPM showed only a modest cytostatic activity against epithelioid MPM cells. Co-EPM induced an increase of senescent cells, while Co-ASS did not; the different outcomes were traced back to the organic (aspirin-like) portion of the molecule. Both Co-EPM and Co-ASS significantly reduced reactive oxygen/nitrogen species (ROS/RNS), and in turn nitrites, suggesting that the hexacarbonyldicobalt moiety may deliver CO within the cell, acting as a CO-releasing molecule (CO-RM). In perspective, Co-ASS would be better considered as a CO-NSAID agent (a CO-releasing molecule retaining the NSAID properties similar to NO- and H2S-NSAIDs) than as an antitumor drug candidate.
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Affiliation(s)
- Ilaria Zanellato
- Dipartimento di Scienze e Innovazione Tecnologica (DiSIT), Sezione Ambiente-Vita, Università del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy.
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24
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Heffern MC, Yamamoto N, Holbrook RJ, Eckermann AL, Meade TJ. Cobalt derivatives as promising therapeutic agents. Curr Opin Chem Biol 2012; 17:189-96. [PMID: 23270779 DOI: 10.1016/j.cbpa.2012.11.019] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 11/20/2012] [Accepted: 11/21/2012] [Indexed: 01/08/2023]
Abstract
Inorganic complexes are versatile platforms for the development of potent and selective pharmaceutical agents. Cobalt possesses a diverse array of properties that can be manipulated to yield promising drug candidates. Investigations into the mechanism of cobalt therapeutic agents can provide valuable insight into the physicochemical properties that can be harnessed for drug development. This review presents examples of bioactive cobalt complexes with special attention to their mechanisms of action. Specifically, cobalt complexes that elicit biological effects through protein inhibition, modification of drug activity, and bioreductive activation are discussed. Insights gained from these examples reveal features of cobalt that can be rationally tuned to produce therapeutics with high specificity and improved efficacy for the biomolecule or pathway of interest.
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Affiliation(s)
- Marie C Heffern
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, IL 60208-3113, United States
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Köster SD, Alborzinia H, Can S, Kitanovic I, Wölfl S, Rubbiani R, Ott I, Riesterer P, Prokop A, Merz K, Metzler-Nolte N. A spontaneous gold(i)-azide alkyne cycloaddition reaction yields gold-peptide bioconjugates which overcome cisplatin resistance in a p53-mutant cancer cell line. Chem Sci 2012. [DOI: 10.1039/c2sc01127a] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Affiliation(s)
- Gilles Gasser
- Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Ingo Ott
- Institute of Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
| | - Nils Metzler-Nolte
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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Gross A, Neukamm M, Metzler-Nolte N. Synthesis and cytotoxicity of a bimetallic ruthenocene dicobalt-hexacarbonyl alkyne peptide bioconjugate. Dalton Trans 2011; 40:1382-6. [DOI: 10.1039/c0dt01113d] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Scheffler H, You Y, Ott I. Comparative studies on the cytotoxicity, cellular and nuclear uptake of a series of chloro gold(I) phosphine complexes. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.06.007] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Gasser G, Neukamm MA, Ewers A, Brosch O, Weyhermüller T, Metzler-Nolte N. Synthesis and characterization of dicobalthexacarbonyl-alkyne derivatives of amino acids, peptides, and peptide nucleic acid (PNA) monomers. Inorg Chem 2009; 48:3157-66. [PMID: 19326929 DOI: 10.1021/ic900013r] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of Co(2)(CO)(8) with alkyne-containing amino acids [1a: phenylalanine (Phe) and 1b: methionine (Met)], two suitably alkyne-functionalized derivatives of the neuropeptide enkephalin (Enk) [3: Ac-Enk-Prop and 5: Ac-Enk(Pgl)-NH(2) (Ac--Acetyl; Pgl--propargylglycine; Prop--propargylamine)], a thymine Peptide Nucleic Acid (T-PNA) monomer (7), and a PNA-like monomer (9) derivative gave the respective dicobalthexacarbonyl bioconjugates in very good yields. Two different sites for labeling of the biomolecules were successfully used: The organometallic moiety was reacted with the C-terminus of alkyne-containing amino acids, peptide or PNA thymine monomers, and alternatively the organometallic compound was complexed to an internal site in the peptide or PNA. To this end, a simple glycine was replaced by propargylglycine in peptides, and a new alkyne-containing PNA-like monomer, in which an alkyne chain replaces the nucleobase, was used for PNA chemistry. For the synthesis of the two alkyne-containing enkephalin derivatives 3 and 5, two different resins, namely sulfamylbutyryl and Rink amid, were used as they allow to selectively insert, on the solid phase, an alkyne moiety at the C-terminus and on a side-chain of a peptide sequence, respectively. The identity and constitution of all cobalt complexes were confirmed by different analytical methods (IR, FAB, ESI-MS, and NMR). Most notably, IR spectroscopy shows intensive bands in the 2100-2000 cm(-1) region because of the Co(2)(CO)(6) moiety. In both (1)H NMR spectra of the dicobalthexacarbonyl PNA monomer derivatives 8 and 10, all signals are doubled because of the cis-trans isomerism about the central amide bond. The X-ray structure of a dicobalthexacarbonyl phenylalanine derivative (2a) confirms the proposed composition of the bioconjugates and shows that, as anticipated, the alkyne group of 2a is no longer linear upon complexation in comparison to the alkyne group of the bioconjugate precursor 1a, as indicated by a C-C[triple bond]C angle of about 143 degrees in 2a. Moreover, the C[triple bond]C bond of 1a was elongated by about 0.15 A upon Co(2) coordination.
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Affiliation(s)
- Gilles Gasser
- Lehrstuhl für Anorganische Chemie I-Bioanorganische Chemie, Fakultät für Chemie and Biochemie, Ruhr-Universität Bochum, D-44801 Bochum, Germany
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Gottschaldt M, Schubert US. Prospects of metal complexes peripherally substituted with sugars in biomedicinal applications. Chemistry 2009; 15:1548-57. [PMID: 19130511 DOI: 10.1002/chem.200802013] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Metal complexes possess unique tunable properties, such as radioactivity, cytotoxicity or photophysical features, enabling them to act as diagnostic tracers or therapeutic agents. In applying them in biological systems, it is often necessary to enhance their solubility and biocompatibility. To achieve such goals, like the targeting of binding domains, transport systems and enzyme activities, the attachment of carbohydrate moieties appears to be suitable. Sugar-substitution in the periphery of metal complexes has therefore become a strongly growing field of research. Outlined herein is a selection of recent examples.
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Affiliation(s)
- Michael Gottschaldt
- Laboratory for Organic and Macromolecular Chemistry, Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
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Ott I, Qian X, Xu Y, Vlecken DHW, Marques IJ, Kubutat D, Will J, Sheldrick WS, Jesse P, Prokop A, Bagowski CP. A gold(I) phosphine complex containing a naphthalimide ligand functions as a TrxR inhibiting antiproliferative agent and angiogenesis inhibitor. J Med Chem 2009; 52:763-70. [PMID: 19123857 DOI: 10.1021/jm8012135] [Citation(s) in RCA: 156] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The novel luminescent gold(I) complex [N-(N',N'-dimethylaminoethyl)-1,8-naphthalimide-4-sulfide](triethylphosphine)gold(I) was prepared and investigated for its primary biological properties. Cell culture experiments revealed strong antiproliferative effects and induction of apoptosis via mitochondrial pathways. Biodistribution studies by fluorescence microscopy and atomic absorption spectroscopy showed the uptake into cell organelles, an accumulation in the nuclei of tumor cells, and a homogeneous distribution in zebrafish embryos. In vivo monitoring of vascularisation in developing zebrafish embryos revealed a significant anti-angiogenic potency of the complex. Mechanistic experiments indicated that the inhibition of thioredoxin reductase (based on the covalent binding of a gold triethylphosphine fragment) might be involved in the pharmacodynamic behavior of this novel gold species.
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Affiliation(s)
- Ingo Ott
- Institute of Pharmacy, Freie Universitat Berlin, Konigin-Luise-Strasse 2+4, 14195 Berlin, Germany.
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Ott I, Kircher B, Bagowski C, Vlecken D, Ott E, Will J, Bensdorf K, Sheldrick W, Gust R. Modulierung der biologischen Eigenschaften von Aspirin durch Bildung eines Bioorganometallderivats. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200803347] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ott I, Kircher B, Bagowski C, Vlecken D, Ott E, Will J, Bensdorf K, Sheldrick W, Gust R. Modulation of the Biological Properties of Aspirin by Formation of a Bioorganometallic Derivative. Angew Chem Int Ed Engl 2009; 48:1160-3. [DOI: 10.1002/anie.200803347] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bagowski CP, You Y, Scheffler H, Vlecken DH, Schmitz DJ, Ott I. Naphthalimide gold(i) phosphine complexes as anticancer metallodrugs. Dalton Trans 2009:10799-805. [DOI: 10.1039/b912378d] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Ott I, Kircher B, Dembinski R, Gust R. Alkyne hexacarbonyl dicobalt complexes in medicinal chemistry and drug development. Expert Opin Ther Pat 2008. [DOI: 10.1517/13543776.18.3.327] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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37
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Sergeant CD, Ott I, Sniady A, Meneni S, Gust R, Rheingold AL, Dembinski R. Metallo-nucleosides: synthesis and biological evaluation of hexacarbonyl dicobalt 5-alkynyl-2′-deoxyuridines. Org Biomol Chem 2008; 6:73-80. [DOI: 10.1039/b713371e] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
The development of metal complexes with platinum central atoms such as cisplatin or carboplatin had an enormous impact on current cancer chemotherapy. However, the spectrum of cancers that can be treated with platinum agents is narrow and treatment efficacy suffers from side effects and resistance phenomena. These unresolved problems in platinum-based anti-cancer therapy have stimulated increased research efforts in the search for novel non platinum-containing metal species as cytostatic agents. Preclinical and clinical investigations showed that the development of new metal agents with modes of action different from cisplatin is possible. Thus, complexes with iron, cobalt, or gold central atoms have shown promising results in preclinical studies and compounds with titanium, ruthenium, or gallium central atoms have already been evaluated in phase I and phase II trials. This review covers some relevant examples of preclinical and clinical research on novel non platinum metal complexes.
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Affiliation(s)
- Ingo Ott
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany.
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Hall MD, Failes TW, Yamamoto N, Hambley TW. Bioreductive activation and drug chaperoning in cobalt pharmaceuticals. Dalton Trans 2007:3983-90. [PMID: 17828357 DOI: 10.1039/b707121c] [Citation(s) in RCA: 149] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potential for cobalt(III) complexes in medicine, as chaperones of bioactive ligands, and to target tumours through bioreductive activation, has been examined over the past 20 years. Despite this, chemical properties such as reduction potential and carrier ligands required for optimal tumour targeting and drug delivery have not been optimised. Here we review the chemistry of cobalt(III) drug design, and recent developments in the understanding of the cellular fate of these drugs.
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Affiliation(s)
- Matthew D Hall
- Centre for Heavy Metals Research, School of Chemistry, The University of Sydney, NSW 2006, Australia
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Banekovich C, Ott I, Koch T, Matuszczak B, Gust R. Synthesis and biological activities of novel dexibuprofen tetraacetylriboflavin conjugates. Bioorg Med Chem Lett 2006; 17:683-7. [PMID: 17110105 DOI: 10.1016/j.bmcl.2006.10.087] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2006] [Revised: 10/30/2006] [Accepted: 10/30/2006] [Indexed: 12/22/2022]
Abstract
A series of novel dexibuprofen derivatives covalently linked via alkylene spacers of variable length to tetraacetylated riboflavin have been developed. The target compounds became accessible by reaction of the chloromethyl ester of dexibuprofen with tetraacetylriboflavin (compound 7) or by synthesis of the appropriate N3-(omega-iodoalkyl)-2',3',4',5'-Tetraacetylriboflavin followed by treatment with dexibuprofen (derivatives 8-11), respectively. Biological screening revealed that the target compounds exhibit antiproliferative effects on MCF-7 breast cancer and HT-29 colon carcinoma cells with IC50 values in the range of 8-15 microM. Enzymatic studies on human platelets indicated significant COX-1 inhibitory activities of the target compounds.
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Affiliation(s)
- Christian Banekovich
- Institute of Pharmacy, Leopold-Franzens University of Innsbruck, Innrain 52a, 6020 Innsbruck, Austria
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Ott I, Abraham A, Schumacher P, Shorafa H, Gastl G, Gust R, Kircher B. Synergistic and additive antiproliferative effects on human leukemia cell lines induced by combining acetylenehexacarbonyldicobalt complexes with the tyrosine kinase inhibitor imatinib. J Inorg Biochem 2006; 100:1903-6. [PMID: 16908070 DOI: 10.1016/j.jinorgbio.2006.06.013] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2006] [Revised: 06/18/2006] [Accepted: 06/25/2006] [Indexed: 01/04/2023]
Abstract
The tyrosine kinase inhibitor imatinib is successfully used in the treatment of chronic myeloid leukemia, but the occurrence of resistance phenomena can significantly limit therapeutic impact. Imatinib shows synergistic effects with cisplatin, suggesting that the coadministration of different cytostatics might reestablish the efficacy of treatment. We recently demonstrated that cobalt alkyne (or acetylenehexacarbonyldicobalt) complexes induce antiproliferative activity in human leukemia and lymphoma cells. The present study evaluates the effects of cobalt alkyne compounds containing propargylic acid esters on human acute (HL-60) and chronic myeloid (LAMA-84 and CML-T1) leukemia cell lines. The cell growth inhibitory activities (IC(50) values of 9.5 microM and higher) and induction of apoptosis (maximum 5.5-fold increase of single-stranded DNA at a drug concentration of 50 microM) achieved with the single agents were moderate. Interestingly, suboptimal concentrations of the cobalt complexes (10 microM) together with imatinib (0.1 microM), when coadministered, showed an additive or synergistic effect on cellular proliferation inhibition. The most promising results were obtained with complexes containing ligands derived from the nonsteroidal antiinflammatory drugs acetylsalicylic acid and naproxene.
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Affiliation(s)
- Ingo Ott
- Institute of Pharmacy, Free University of Berlin, Koenigin-Luise-Strasse 2+4, 14195 Berlin, Germany.
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