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Alhazmi HA, Albratty M. An update on the novel and approved drugs for Alzheimer disease. Saudi Pharm J 2022; 30:1755-1764. [PMID: 36601504 PMCID: PMC9805975 DOI: 10.1016/j.jsps.2022.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 10/04/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Given the severity of the condition and the increasing number of patients, developing effective therapies for Alzheimer's disease has become a significant necessity. Aggregation of Amyloid-Beta (Aβ) plaques and Tau Protein Tangles in the brain's nerve tissue are two of the most histopathological/pathophysiological symptoms. Another important element involved in the etiology of Alzheimer's disease is the reduction in acetylcholine (ACh) levels in the brain. Currently available medications for Alzheimer's disease treatment, such as cholinesterase inhibitors and an antagonist of the N-methyl-d-aspartate receptor, can temporarily reduce dementia symptoms but not stop or reverse disease development. In addition, several medicinal plants have been shown to diminish the degenerative characteristics associated with Alzheimer's disease, either in its crude form or as isolated chemicals. Aim This review summarises the results from previous studies that reflect an array of novel therapies underway in various phases of clinical trials. Many are discontinued due to non-adherence to the designed endpoints or the surfacing of unavoidable side effects. The present piece of article focuses on the approved drugs for the treatment of Alzheimer's disease and their related mode of action as well as the promising therapies for the treatment of the said disease. Special attention has been placed on the researched herbal drugs, with the pipeline of novel therapies underway in various phases of clinical trials. Result The current article includes a list of approved pharmaceuticals for treating Alzheimer's disease, prospective therapies for the illness's treatment, and a pipeline of novel therapies in various stages of clinical trials. Conclusion The results suggest that the drugs under clinical trials may open new pathways for the effective treatment of patients with Alzheimer's disease while improving their quality of life.
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Affiliation(s)
- Hassan Ahmad Alhazmi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P. Box No. 114, Jazan, Saudi Arabia,Substance Abuse and Toxicology Research Centre, Jazan University, P. Box No. 114, Jazan, Saudi Arabia
| | - Mohammed Albratty
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P. Box No. 114, Jazan, Saudi Arabia,Corresponding author at: Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia.
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2
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Arshad JZ, Hanif M. Hydroxypyrone derivatives in drug discovery: from chelation therapy to rational design of metalloenzyme inhibitors. RSC Med Chem 2022; 13:1127-1149. [PMID: 36325396 PMCID: PMC9579940 DOI: 10.1039/d2md00175f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/28/2022] [Indexed: 07/31/2023] Open
Abstract
The versatile structural motif of hydroxypyrone is found in natural products and can be easily converted into hydroxypyridone and hydroxythiopyridone analogues. The favourable toxicity profile and ease of functionalization to access a vast library of compounds make them an ideal structural scaffold for drug design and discovery. This versatile scaffold possesses excellent metal chelating properties that can be exploited for chelation therapy in clinics. Deferiprone [1,2-dimethyl-3-hydroxy-4(1H)-one] was the first orally active chelator to treat iron overload in thalassemia major. Metal complexes of hydroxy-(thio)pyr(id)ones have been investigated as magnetic resonance imaging contrast agents, and anticancer and antidiabetic agents. In recent years, this compound class has demonstrated potential in discovering and developing metalloenzyme inhibitors. This review article summarizes recent literature on hydroxy-(thio)pyr(id)ones as inhibitors for metalloenzymes such as histone deacetylases, tyrosinase and metallo-β-lactamase. Different approaches to the design of hydroxy-(thio)pyr(id)ones and their biological properties against selected metalloenzymes are discussed.
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Affiliation(s)
- Jahan Zaib Arshad
- Department of Chemistry, Government College Women University Sialkot Sialkot Pakistan
| | - Muhammad Hanif
- School of Chemical Sciences, University of Auckland Private Bag 92019 Auckland 1142 New Zealand (+64) 9 373 7599 ext. 87422
- MacDiarmid Institute for Advanced Materials and Nanotechnology Wellington New Zealand
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3
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Lewis FW, Bird K, Navarro JP, El Fallah R, Brandel J, Hubscher-Bruder V, Tsatsanis A, Duce JA, Tétard D, Bourne S, Maina M, Pienaar IS. Synthesis, physicochemical characterization and neuroprotective evaluation of novel 1-hydroxypyrazin-2(1 H)-one iron chelators in an in vitro cell model of Parkinson's disease. Dalton Trans 2022; 51:3590-3603. [PMID: 35147617 PMCID: PMC8886574 DOI: 10.1039/d1dt02604f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/30/2021] [Indexed: 12/14/2022]
Abstract
Iron dysregulation, dopamine depletion, cellular oxidative stress and α-synuclein protein mis-folding are key neuronal pathological features seen in the progression of Parkinson's disease. Iron chelators endowed with one or more therapeutic modes of action have long been suggested as disease modifying therapies for its treatment. In this study, novel 1-hydroxypyrazin-2(1H)-one iron chelators were synthesized and their physicochemical properties, iron chelation abilities, antioxidant capacities and neuroprotective effects in a cell culture model of Parkinson's disease were evaluated. Physicochemical properties (log β, log D7.4, pL0.5) suggest that these ligands have a poorer ability to penetrate cell membranes and form weaker iron complexes than the closely related 1-hydroxypyridin-2(1H)-ones. Despite this, we show that levels of neuroprotection provided by these ligands against the catecholaminergic neurotoxin 6-hydroxydopamine in vitro were comparable to those seen previously with the 1-hydroxypyridin-2(1H)-ones and the clinically used iron chelator Deferiprone, with two of the ligands restoring cell viability to ≥89% compared to controls. Two of the ligands were endowed with additional phenol moieties in an attempt to derive multifunctional chelators with dual iron chelation/antioxidant activity. However, levels of neuroprotection with these ligands were no greater than ligands lacking this moiety, suggesting the neuroprotective properties of these ligands are due primarily to chelation and passivation of intracellular labile iron, preventing the generation of free radicals and reactive oxygen species that otherwise lead to the neuronal cell death seen in Parkinson's disease.
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Affiliation(s)
- Frank W Lewis
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, Tyne and Wear NE1 8ST, UK.
| | - Kathleen Bird
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, Tyne and Wear NE1 8ST, UK.
| | - Jean-Philippe Navarro
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, Tyne and Wear NE1 8ST, UK.
| | - Rawa El Fallah
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France.
| | - Jeremy Brandel
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France.
| | | | - Andrew Tsatsanis
- School of Biomedical Sciences, The Faculty of Biological Sciences, University of Leeds, Leeds, West Yorkshire LS2 9JT, UK
- Alzheimer's Research UK Cambridge Drug Discovery Institute, Cambridge Bio-medical Campus, University of Cambridge, Cambridge, UK.
| | - James A Duce
- School of Biomedical Sciences, The Faculty of Biological Sciences, University of Leeds, Leeds, West Yorkshire LS2 9JT, UK
- Alzheimer's Research UK Cambridge Drug Discovery Institute, Cambridge Bio-medical Campus, University of Cambridge, Cambridge, UK.
| | - David Tétard
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, Tyne and Wear NE1 8ST, UK.
| | - Samuel Bourne
- School of Life Sciences, University of Sussex, Falmer, Sussex BN1 9PH, UK.
| | - Mahmoud Maina
- School of Life Sciences, University of Sussex, Falmer, Sussex BN1 9PH, UK.
| | - Ilse S Pienaar
- School of Life Sciences, University of Sussex, Falmer, Sussex BN1 9PH, UK.
- Institute of Clinical Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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4
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Design concepts of half-sandwich organoruthenium anticancer agents based on bidentate bioactive ligands. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213950] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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5
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Shakil MS, Parveen S, Rana Z, Walsh F, Movassaghi S, Söhnel T, Azam M, Shaheen MA, Jamieson SMF, Hanif M, Rosengren RJ, Hartinger CG. High Antiproliferative Activity of Hydroxythiopyridones over Hydroxypyridones and Their Organoruthenium Complexes. Biomedicines 2021; 9:biomedicines9020123. [PMID: 33513800 PMCID: PMC7912191 DOI: 10.3390/biomedicines9020123] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/20/2021] [Accepted: 01/22/2021] [Indexed: 12/12/2022] Open
Abstract
Hydroxypyr(id)ones are a pharmaceutically important class of compounds that have shown potential in diverse areas of drug discovery. We investigated the 3-hydroxy-4-pyridones 1a-1c and 3-hydroxy-4-thiopyridones 1d-1f as well as their Ru(η6-p-cymene)Cl complexes 2a-2f, and report here the molecular structures of 1b and 1d as determined by X-ray diffraction analysis. Detailed cell biological investigations revealed potent cytotoxic activity, in particular of the 3-hydroxy-4-thiopyridones 1d-1f, while the Ru complexes of both compound types were less potent, despite still showing antiproliferative activity in the low μM range. The compounds did not modulate the cell cycle distribution of cancer cells but were cytostatic in A549 and cytotoxic in NCI-H522 non-small lung cancer cells, among other effects on cancer cells.
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Affiliation(s)
- Md. Salman Shakil
- Department of Pharmacology and Toxicology, University of Otago, PO Box 56, Dunedin 9016, New Zealand; (M.S.S.); (Z.R.); (M.A.)
| | - Shahida Parveen
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; (S.P.); (F.W.); (S.M.); (T.S.)
- Department of Chemistry, University of Sargodha, Sargodha 40100, Pakistan;
| | - Zohaib Rana
- Department of Pharmacology and Toxicology, University of Otago, PO Box 56, Dunedin 9016, New Zealand; (M.S.S.); (Z.R.); (M.A.)
| | - Fearghal Walsh
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; (S.P.); (F.W.); (S.M.); (T.S.)
| | - Sanam Movassaghi
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; (S.P.); (F.W.); (S.M.); (T.S.)
| | - Tilo Söhnel
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; (S.P.); (F.W.); (S.M.); (T.S.)
| | - Mayur Azam
- Department of Pharmacology and Toxicology, University of Otago, PO Box 56, Dunedin 9016, New Zealand; (M.S.S.); (Z.R.); (M.A.)
| | | | - Stephen M. F. Jamieson
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand;
| | - Muhammad Hanif
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; (S.P.); (F.W.); (S.M.); (T.S.)
- Correspondence: (M.H.); (R.J.R.); (C.G.H.)
| | - Rhonda J. Rosengren
- Department of Pharmacology and Toxicology, University of Otago, PO Box 56, Dunedin 9016, New Zealand; (M.S.S.); (Z.R.); (M.A.)
- Correspondence: (M.H.); (R.J.R.); (C.G.H.)
| | - Christian G. Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; (S.P.); (F.W.); (S.M.); (T.S.)
- Correspondence: (M.H.); (R.J.R.); (C.G.H.)
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6
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Irto A, Cardiano P, Cataldo S, Chand K, Maria Cigala R, Crea F, De Stefano C, Gattuso G, Muratore N, Pettignano A, Sammartano S, Amélia Santos M. Speciation Studies of Bifunctional 3-Hydroxy-4-Pyridinone Ligands in the Presence of Zn 2+ at Different Ionic Strengths and Temperatures. Molecules 2019; 24:molecules24224084. [PMID: 31726704 PMCID: PMC6891321 DOI: 10.3390/molecules24224084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/06/2019] [Accepted: 11/06/2019] [Indexed: 12/16/2022] Open
Abstract
The acid–base properties of two bifunctional 3-hydroxy-4-pyridinone ligands and their chelating capacity towards Zn2+, an essential bio-metal cation, were investigated in NaCl aqueous solutions by potentiometric, UV-Vis spectrophotometric, and 1H NMR spectroscopic titrations, carried out at 0.15 ≤ I/mol −1 ≤ 1.00 and 288.15 ≤ T/K ≤ 310.15. A study at I = 0.15 mol L−1 and T = 298.15 K was also performed for other three Zn2+/Lz− systems, with ligands belonging to the same family of compounds. The processing of experimental data allowed the determination of protonation and stability constants, which showed accordance with the data obtained from the different analytical techniques used, and with those reported in the literature for the same class of compounds. ESI-MS spectrometric measurements provided support for the formation of the different Zn2+/ligand species, while computational molecular simulations allowed information to be gained on the metal–ligand coordination. The dependence on ionic strength and the temperature of equilibrium constants were investigated by means of the extended Debye–Hückel model, the classical specific ion interaction theory, and the van’t Hoff equations, respectively.
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Affiliation(s)
- Anna Irto
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Università di Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.I.); (P.C.); (R.M.C.); (F.C.); (C.D.S.); (G.G.)
| | - Paola Cardiano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Università di Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.I.); (P.C.); (R.M.C.); (F.C.); (C.D.S.); (G.G.)
| | - Salvatore Cataldo
- Dipartimento di Fisica e Chimica Emilio Segrè, ed. 17, Università di Palermo, Viale delle Scienze, I-90128 Palermo, Italy; (S.C.); (N.M.); (A.P.)
| | - Karam Chand
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovísco Pais 1, 1049-001 Lisboa, Portugal;
| | - Rosalia Maria Cigala
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Università di Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.I.); (P.C.); (R.M.C.); (F.C.); (C.D.S.); (G.G.)
| | - Francesco Crea
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Università di Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.I.); (P.C.); (R.M.C.); (F.C.); (C.D.S.); (G.G.)
| | - Concetta De Stefano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Università di Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.I.); (P.C.); (R.M.C.); (F.C.); (C.D.S.); (G.G.)
| | - Giuseppe Gattuso
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Università di Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.I.); (P.C.); (R.M.C.); (F.C.); (C.D.S.); (G.G.)
| | - Nicola Muratore
- Dipartimento di Fisica e Chimica Emilio Segrè, ed. 17, Università di Palermo, Viale delle Scienze, I-90128 Palermo, Italy; (S.C.); (N.M.); (A.P.)
| | - Alberto Pettignano
- Dipartimento di Fisica e Chimica Emilio Segrè, ed. 17, Università di Palermo, Viale delle Scienze, I-90128 Palermo, Italy; (S.C.); (N.M.); (A.P.)
| | - Silvio Sammartano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Università di Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.I.); (P.C.); (R.M.C.); (F.C.); (C.D.S.); (G.G.)
- Correspondence: (S.S.); (M.A.S.); Tel.: +39-0906765749 (S.S.); +351-218419273 (M.A.S.)
| | - M. Amélia Santos
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovísco Pais 1, 1049-001 Lisboa, Portugal;
- Correspondence: (S.S.); (M.A.S.); Tel.: +39-0906765749 (S.S.); +351-218419273 (M.A.S.)
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7
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Petriček S. Syntheses and crystal structures of metal (Mn, Co, Ni) chloride complexes with 3-hydroxypyridin-2-one and contribution of O H⋯Cl hydrogen bonds to their structural diversity. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.050] [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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8
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New bis-(3-hydroxy-4-pyridinone)-NTA-derivative: Synthesis, binding ability towards Ca2+, Cu2+, Zn2+, Al3+, Fe3+ and biological assays. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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9
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Bifunctional 3-hydroxy-4-pyridinones as effective aluminium chelators: synthesis, solution equilibrium studies and in vivo evaluation. J Inorg Biochem 2018; 186:116-129. [DOI: 10.1016/j.jinorgbio.2018.05.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/25/2018] [Accepted: 05/26/2018] [Indexed: 11/19/2022]
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10
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The possibility of iron chelation therapy in the presence of different HPOs; a molecular approach to the non-covalent interactions and binding energies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.065] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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11
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Hanif M, Meier SM, Adhireksan Z, Henke H, Martic S, Movassaghi S, Labib M, Kandioller W, Jamieson SMF, Hejl M, Jakupec MA, Kraatz HB, Davey CA, Keppler BK, Hartinger CG. Functionalization of Ruthenium(II)(η 6 -p-cymene)(3-hydroxy-2-pyridone) Complexes with (Thio)Morpholine: Synthesis and Bioanalytical Studies. Chempluschem 2017; 82:841-847. [PMID: 31961568 DOI: 10.1002/cplu.201700050] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/16/2017] [Indexed: 02/06/2023]
Abstract
Hydroxypyr(id)ones constitute an emerging platform for the design of drug molecules, owing to their favorable biocompatibility and toxicity profiles. Herein, [RuII (η6 -p-cymene)] complexes with 3-hydroxy-2-pyridinone functionalized with morpholine and thiomorpholine, as a means often used in medicinal chemistry to alter the physicochemical properties of drug compounds, are reported. The compounds underwent hydrolysis of the Ru-Cl bond and the aqua species were stable for up to 48 h in aqueous solution, as observed by 1 H NMR spectroscopy and ESI-MS. The compounds formed adducts with amino acids and proteins through cleavage of the pyridinone ligand. Binding experiments to the nucleosome core particle by means of X-ray crystallography revealed similar reactivity and exclusive binding to histidine moieties of the histone proteins. Preliminary cyclin-dependent kinase 2 (CDK2)/cyclin A kinase inhibitory studies revealed promising activity similar to that of structurally related organometallic compounds.
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Affiliation(s)
- Muhammad Hanif
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Samuel M Meier
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria.,Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 38, 1090, Vienna, Austria
| | - Zenita Adhireksan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
| | - Helena Henke
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Sanela Martic
- Department of Chemistry, Oakland University, 2200 North Squirrel Road, Rochester, MI, 48309, USA
| | - Sanam Movassaghi
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Mahmoud Labib
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, ON, M5S 3H2, Canada
| | - Wolfgang Kandioller
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria.,Research Platform "Translational Cancer Therapy Research", University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Stephen M F Jamieson
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Michaela Hejl
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Michael A Jakupec
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria.,Research Platform "Translational Cancer Therapy Research", University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Heinz-Bernhard Kraatz
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada.,Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, M1C 1A4, Canada
| | - Curt A Davey
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore.,NTU Institute of Structural Biology, Nanyang Technological University, 59 Nanyang Drive, Singapore, 636921, Singapore
| | - Bernhard K Keppler
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria.,Research Platform "Translational Cancer Therapy Research", University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090, Vienna, Austria
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12
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Buchwalder C, Rodríguez-Rodríguez C, Schaffer P, Karagiozov SK, Saatchi K, Häfeli UO. A new tetrapodal 3-hydroxy-4-pyridinone ligand for complexation of 89zirconium for positron emission tomography (PET) imaging. Dalton Trans 2017; 46:9654-9663. [DOI: 10.1039/c7dt02196h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The first octadentate 3-hydroxy-4-pyridinone chelator was prepared and its monometallic 89Zr(iv)-complex was studied in vitro and in vivo.
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Affiliation(s)
| | | | | | | | - Katayoun Saatchi
- University of British Columbia
- Faculty of Pharmaceutical Sciences
- Vancouver
- Canada
| | - Urs O. Häfeli
- University of British Columbia
- Faculty of Pharmaceutical Sciences
- Vancouver
- Canada
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13
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Workman DG, Hunter M, Dover LG, Tétard D. Synthesis of novel Iron(III) chelators based on triaza macrocycle backbone and 1-hydroxy-2(H)-pyridin-2-one coordinating groups and their evaluation as antimicrobial agents. J Inorg Biochem 2016; 160:49-58. [DOI: 10.1016/j.jinorgbio.2016.04.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 04/04/2016] [Accepted: 04/12/2016] [Indexed: 12/19/2022]
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14
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Jin B, Zheng R, Peng R, Chu S. Synthesis of New Bis(3-hydroxy-4-pyridinone) Ligands as Chelating Agents for Uranyl Complexation. Molecules 2016; 21:299. [PMID: 27005598 PMCID: PMC6273119 DOI: 10.3390/molecules21030299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 02/19/2016] [Accepted: 02/23/2016] [Indexed: 11/16/2022] Open
Abstract
Five new bis(3-hydroxy-4-pyridinone) tetradentate chelators were synthesized in this study. The structures of these tetradentate chelators were characterized by ¹H-NMR, (13)C-NMR, FT-IR, UV-vis, and mass spectral analyses. The binding abilities of these tetradentate chelators for uranyl ion at pH 7.4 were also determined by UV spectrophotometry in aqueous media. Results showed that the efficiencies of these chelating agents are dependent on the linker length. Ligand 4b is the best chelator and suitable for further studies.
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Affiliation(s)
- Bo Jin
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Rongzong Zheng
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Rufang Peng
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Shijin Chu
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China.
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Exley C, Mold MJ. The binding, transport and fate of aluminium in biological cells. J Trace Elem Med Biol 2015; 30:90-5. [PMID: 25498314 DOI: 10.1016/j.jtemb.2014.11.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 11/13/2014] [Indexed: 11/17/2022]
Abstract
Aluminium is the most abundant metal in the Earth's crust and yet, paradoxically, it has no known biological function. Aluminium is biochemically reactive, it is simply that it is not required for any essential process in extant biota. There is evidence neither of element-specific nor evolutionarily conserved aluminium biochemistry. This means that there are no ligands or chaperones which are specific to its transport, there are no transporters or channels to selectively facilitate its passage across membranes, there are no intracellular storage proteins to aid its cellular homeostasis and there are no pathways which evolved to enable the metabolism and excretion of aluminium. Of course, aluminium is found in every compartment of every cell of every organism, from virus through to Man. Herein we have investigated each of the 'silent' pathways and metabolic events which together constitute a form of aluminium homeostasis in biota, identifying and evaluating as far as is possible what is known and, equally importantly, what is unknown about its uptake, transport, storage and excretion.
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Affiliation(s)
- Christopher Exley
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG, UK.
| | - Matthew J Mold
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG, UK
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Robinson-Miller AP, Wyatt MF, Tétard D. Epoxidation of strained alkenes catalysed by (1,2-dimethyl-4(1H)pyridinone-3-olate)2MnIIICl. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Huang W, Wei W, Shen Z. Drug-like chelating agents: a potential lead for Alzheimer's disease. RSC Adv 2014. [DOI: 10.1039/c4ra09193k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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18
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Meier SM, Novak M, Kandioller W, Jakupec MA, Arion VB, Metzler-Nolte N, Keppler BK, Hartinger CG. Identification of the structural determinants for anticancer activity of a ruthenium arene peptide conjugate. Chemistry 2013; 19:9297-307. [PMID: 23712572 DOI: 10.1002/chem.201300889] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Indexed: 11/07/2022]
Abstract
Organometallic Ru(arene)-peptide bioconjugates with potent in vitro anticancer activity are rare. We have prepared a conjugate of a Ru(arene) complex with the neuropeptide [Leu(5)]-enkephalin. [Chlorido(η(6)-p-cymene)(5-oxo-κO-2-{(4-[(N-tyrosinyl-glycinyl-glycinyl-phenylalanyl-leucinyl-NH2)propanamido]-1H-1,2,3-triazol-1-yl)methyl}-4H-pyronato-κO)ruthenium(II)] (8) shows antiproliferative activity in human ovarian carcinoma cells with an IC50 value as low as 13 μM, whereas the peptide or the Ru moiety alone are hardly cytotoxic. The conjugation strategy for linking the Ru(cym) (cym=η(6)-p-cymene) moiety to the peptide involved N-terminal modification of an alkyne-[Leu(5)]-enkephalin with a 2-(azidomethyl)-5-hydroxy-4H-pyran-4-one linker, using Cu(I)-catalyzed alkyne-azide cycloaddition (CuAAC), and subsequent metallation with the Ru(cym) moiety. The ruthenium-bioconjugate was characterized by high resolution top-down electrospray ionization mass spectrometry (ESI-MS) with regard to peptide sequence, linker modification and metallation site. Notably, complete sequence coverage was obtained and the Ru(cym) moiety was confirmed to be coordinated to the pyronato linker. The ruthenium-bioconjugate was analyzed with respect to cytotoxicity-determining constituents, and through the bioconjugate models [{2-(azidomethyl)-5-oxo-κO-4H-pyronato-κO}chloride (η(6)-p-cymene)ruthenium(II)] (5) and [chlorido(η(6)-p-cymene){5-oxo-κO-2-([(4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl]methyl)-4H-pyronato-κO}ruthenium(II)] (6) the Ru(cym) fragment with a triazole-carrying pyronato ligand was identified as the minimal unit required to achieve in vitro anticancer activity.
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Affiliation(s)
- Samuel M Meier
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria
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Henke H, Kandioller W, Hanif M, Keppler BK, Hartinger CG. Organometallic ruthenium and osmium compounds of pyridin-2- and -4-ones as potential anticancer agents. Chem Biodivers 2013; 9:1718-27. [PMID: 22976964 DOI: 10.1002/cbdv.201200005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Organometallic Ru(II) compounds are among the most widely studied anticancer agents. Functionalizing metal centers with biomolecule-derived ligands has been shown to be a promising strategy to improve the antiproliferative activity of metal-based chemotherapeutics. Herein, the synthesis of a series of novel 3-hydroxypyridin-2-one-derived ligands and their M(II)(η(6)-p-cymene) half-sandwich complexes (M = Ru, Os) is described. The compounds were characterized by 1D- and 2D-NMR spectroscopy, and elemental analysis.
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Affiliation(s)
- Helena Henke
- University of Vienna, Institute of Inorganic Chemistry, Waehringer Str. 42, AT-1090 Vienna
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Chaves S, Capelo A, Areias L, Marques SM, Gano L, Esteves MA, Santos MA. A novel tripodal tris-hydroxypyrimidinone sequestering agent for trivalent hard metal ions: synthesis, complexation and in vivo studies. Dalton Trans 2013; 42:6033-45. [DOI: 10.1039/c2dt32361c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Telpoukhovskaia MA, Patrick BO, Rodríguez-Rodríguez C, Orvig C. Exploring the multifunctionality of thioflavin- and deferiprone-based molecules as acetylcholinesterase inhibitors for potential application in Alzheimer's disease. MOLECULAR BIOSYSTEMS 2013; 9:792-805. [DOI: 10.1039/c3mb25600f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Sahoo SK, Sharma D, Bera RK, Crisponi G, Callan JF. Iron(III) selective molecular and supramolecular fluorescent probes. Chem Soc Rev 2012; 41:7195-227. [PMID: 22885471 DOI: 10.1039/c2cs35152h] [Citation(s) in RCA: 498] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Iron is one of the most important elements in metabolic processes, being indispensable for all living systems and therefore it is extensively distributed in environmental and biological materials. However, both its deficiency and excess from the normal permissible limit can induce serious disorders. Therefore, several analytical techniques have been adopted for the detection of iron. Among the various techniques used for its detection, the method based on fluorescent sensors has received considerable interest in recent years because of its ability to provide online monitoring of very low concentrations without any pre-treatment of the sample together with the advantages of spatial and temporal resolution. In this article, efforts have been made to review the various molecular and supramolecular fluorescent sensors that have been developed for the selective detection of iron(III).
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Affiliation(s)
- Suban K Sahoo
- Department of Applied Chemistry, SV National Institute Technology, Surat-395007, Gujrat, India.
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Santos MA, Marques SM, Chaves S. Hydroxypyridinones as “privileged” chelating structures for the design of medicinal drugs. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2011.08.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Leite A, Silva AM, Nunes A, Andrade M, Sousa C, Cunha-Silva L, Gameiro P, de Castro B, Rangel M. Novel tetradentate chelators derived from 3-hydroxy-4-pyridinone units: synthesis, characterization and aqueous solution properties. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.04.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Synthesis and intestinal transport of the iron chelator maltosine in free and dipeptide form. Eur J Pharm Biopharm 2011; 78:75-82. [DOI: 10.1016/j.ejpb.2010.12.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 12/21/2010] [Accepted: 12/23/2010] [Indexed: 11/17/2022]
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27
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Kandioller W, Kurzwernhart A, Hanif M, Meier SM, Henke H, Keppler BK, Hartinger CG. Pyrone derivatives and metals: From natural products to metal-based drugs. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.11.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Synthesis and characterization of a new 4-pyridone derivative and its complexation of iron(III). J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.01.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Grazina R, Santos MA. New hydroxypyridinone-functionalized sepharoses as sorbing agents for hard metal ions. JOURNAL OF HAZARDOUS MATERIALS 2011; 186:1902-1908. [PMID: 21239106 DOI: 10.1016/j.jhazmat.2010.12.084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 12/17/2010] [Accepted: 12/17/2010] [Indexed: 05/30/2023]
Abstract
Two new polymeric matrices functionalized with 3-hydroxy-4-pyridinone chelating units (HP-NH-SEPH and HP-C=NH-SEPH) have been prepared and studied for their chelating ability towards a set of metal ions (e.g. Fe(III), Al(III), and Th(IV)). Both matrices demonstrated excellent ability to complex these metal ions, but HP-NH-SEPH evidenced higher chelating capacity than HP-C=NH-SEPH. The corresponding metal-complex gels presented high stability in the pH range 3-7, and their chelating capacity followed the order, Fe(III)≈Th(IV)>Al(III), in agreement with previously reported thermodynamics of the corresponding monomeric ligand-metal complexes in aqueous solution. These functionalized supports also showed capacity to be regenerated and reused. Thus, there are good perspectives for potential environmental and medical applications of these new metal sorbents.
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Affiliation(s)
- Raquel Grazina
- Centro Química Estrutural, Instituto Superior Técnico-UTL, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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30
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Nurchi VM, Lachowicz JI, Crisponi G, Murgia S, Arca M, Pintus A, Gans P, Niclos-Gutierrez J, Domínguez-Martín A, Castineiras A, Remelli M, Szewczuk Z, Lis T. Kojic acid derivatives as powerful chelators for iron(iii) and aluminium(iii). Dalton Trans 2011; 40:5984-98. [DOI: 10.1039/c1dt00005e] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Hanif M, Henke H, Meier SM, Martic S, Labib M, Kandioller W, Jakupec MA, Arion VB, Kraatz HB, Keppler BK, Hartinger CG. Is the reactivity of M(II)-arene complexes of 3-hydroxy-2(1H)-pyridones to biomolecules the anticancer activity determining parameter? Inorg Chem 2010; 49:7953-63. [PMID: 20704358 DOI: 10.1021/ic1009785] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydroxypyr(id)ones are versatile ligands for the synthesis of organometallic anticancer agents, equipping them with fine-tunable pharmacological properties. Herein, we report on the preparation, mode of action, and in vitro anticancer activity of Ru(II)- and Os(II)-arene complexes with alkoxycarbonylmethyl-3-hydroxy-2-pyridone ligands. The hydrolysis and binding to amino acids proceed quickly, as characterized by NMR spectroscopy and ESI mass spectrometry. However, the reaction with amino acids causes cleavage of the pyridone ligands from the metal center because the amino acids act as multidentate ligands. A similar behavior was also observed during the reactions with the model proteins ubiquitin and cytochrome c, yielding mainly [protein + M(eta(6)-p-cymene)] adducts (M = Ru, Os). Notably the ligand cleavage of the Os derivative was significantly slower than of its Ru analogue, which could explain its higher activity in in vitro anticancer assays. Furthermore, the reaction of the compounds to 5'-GMP was characterized and coordination to the N7 of the guanine moiety was demonstrated by (1)H NMR spectroscopy and X-ray diffraction analysis. CDK2/Cyclin A protein kinase inhibition studies revealed potent activity of the Ru and Os complexes.
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Affiliation(s)
- Muhammad Hanif
- University of Vienna, Institute of Inorganic Chemistry, Waehringer Str. 42, A-1090 Vienna, Austria
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32
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Cai Y, Dong W, Jin H. Diaqua-(2,6-dihy-droxy-benzoato-κO,O)bis-(2,6-dihy-droxy-benzoato-κO)bis-(1,10-phenanthroline-κN,N')lanthanum(III)-1,10-phenanthroline (1/1). Acta Crystallogr Sect E Struct Rep Online 2010; 66:m1610-1. [PMID: 21589288 PMCID: PMC3011687 DOI: 10.1107/s1600536810047318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Accepted: 11/15/2010] [Indexed: 11/10/2022]
Abstract
In the title compound, [La(C(7)H(5)O(4))(3)(C(12)H(8)N(2))(3)(H(2)O)(2)]·C(12)H(8)N(2), the La(III) atom is coordinated by four N atoms from two chelating 1,10-phenanthroline (phen) ligands, four O atoms from three 2,6-dihy-droxy-benzoate (DHB) anions (one monodentate, the other bidentate) and two water O atoms, completing a distorted LaN(4)O(6) bicapped square-anti-prismatic geometry. Within the mononuclear complex mol-ecule, intra-molecular π-π stacking inter-actions are observed, the first between a coordinated phen mol-ecule and a DHB ligand [centroid-centroid distance = 3.7291 (16) Å], and the second between a coordinated phen mol-ecule and an uncoordinated phen ligand [centroid-centroid distance = 3.933 (2) Å]. Inter-molecular π-π stacking is observed between adjacent complexes [inter-planar distance = 3.461 (3) Å]. Intra- and inter-molecular O-H⋯O hydrogen bonds are observed in the DHB ligands and between a water mol-ecule and DHB ligands, respectively. O-H⋯N hydrogen bonds are also observed in the DHB ligands and between uncoordinated phen mol-ecules and aqua ligands.
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Affiliation(s)
- Yaling Cai
- College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, People's Republic of China
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Chaves S, Mendonça AC, Marques SM, Prata MI, Santos AC, Martins AF, Geraldes CFGC, Santos MA. A gallium complex with a new tripodal tris-hydroxypyridinone for potential nuclear diagnostic imaging: solution and in vivo studies of 67Ga-labeled species. J Inorg Biochem 2010; 105:31-8. [PMID: 21134600 DOI: 10.1016/j.jinorgbio.2010.09.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Revised: 09/27/2010] [Accepted: 09/29/2010] [Indexed: 11/15/2022]
Abstract
The gallium(III) complex of a new tripodal 3-hydroxy-4-pyridinone (3,4-HP) chelator has been studied in terms of its physico-chemical and in vivo properties aimed at potential application as probe for nuclear imaging. In particular, based on spectrophotometric titrations, the hexa-coordinated (1:1) gallium complex appeared as the major species in a wide physiological acid-neutral pH range and its high stability (pGa=27.5) should avoid drug-induced toxicity resulting from Ga(III) accumulation in tissues due to processes of transmetallation with endogenenous ligands or demetallation. A multinuclear ((1)H and (71)Ga) NMR study gave some insights into the structure and dynamics of the gallium(III) chelate in solution, which are consistent with the tris-(3,4-HP) coordination and an eventual pseudo-octahedral geometry. Biodistribution and scintigraphic studies of the (67)Ga(III) labelled chelate, performed in Wistar rats, confirmed the in vivo stability of the radiolabelled complex, its non interaction with blood proteins and its quick renal clearance. These results indicate good perspectives for potential application of extrafunctionalized analogues in radiodiagnostic techniques.
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Affiliation(s)
- Sílvia Chaves
- Centro de Química Estrutural, Instituto Superior Técnico-UTL, 1049-001 Lisboa, Portugal
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Silva AM, Leite A, Andrade M, Gameiro P, Brandão P, Felix V, de Castro B, Rangel M. Microwave-assisted synthesis of 3-hydroxy-4-pyridinone/naphthalene conjugates. Structural characterization and selection of a fluorescent ion sensor. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.08.065] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chaves S, Marques S, Matos A, Nunes A, Gano L, Tuccinardi T, Martinelli A, Santos M. New Tris(hydroxypyridinones) as Iron and Aluminium Sequestering Agents: Synthesis, Complexation and In Vivo Studies. Chemistry 2010; 16:10535-45. [DOI: 10.1002/chem.201001335] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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36
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Hanif M, Schaaf P, Kandioller W, Hejl M, Jakupec MA, Roller A, Keppler BK, Hartinger CG. Influence of the Arene Ligand and the Leaving Group on the Anticancer Activity of (Thio)maltol Ruthenium(II)–(η6-Arene) Complexes. Aust J Chem 2010. [DOI: 10.1071/ch10232] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Maltol and its metal complexes have shown promising applications in medicinal chemistry. We report here the synthesis and characterization of Ru(η6-arene)(halido) coordination compounds bearing maltol or thiomaltol ligands and studies on their behaviour in aqueous solution, their reactions with the DNA model guanosine 5′-monophosphate (5′-GMP) and their in vitro anticancer activity in human tumour cell lines. The compounds hydrolyze rapidly and quantitatively to the respective aqua species by exchange of the halido ligand. With pKa values of >8, such species would also be present in biological media and they proved reactive to 5′-GMP. The thiomaltol compounds show promising in vitro activity with IC50 values (50% inhibitory concentration) in the low micromolar range, whereas activity of the maltol complexes is marginal. Variation of the arene ligand (benzene, toluene, p-cymene or biphenyl) resulted only in minor changes in activity.
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Chaves S, Jelic R, Mendonça C, Carrasco M, Yoshikawa Y, Sakurai H, Santos MA. Complexes of hydroxy(thio)pyrone and hydroxy(thio)pyridinone with Zn(II) and Mo(VI). Thermodynamic stability and insulin-mimetic activity. Metallomics 2009; 2:220-7. [PMID: 21069160 DOI: 10.1039/b914169c] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of metal-containing pharmaceuticals as insulin-mimetics has been the object of recent worldwide research. We have examined a series of zinc(II) and molybdenum(VI) complexes with model O,S-donor ligands (thiomaltol and 1,2-dimethyl-3-hydroxypyridine-4-thione (DMHTP)) and the corresponding O,O-analogues (maltol and DMHP) for their insulin-mimetic activity. Aimed at getting structure-activity relationships, some physical-chemical properties were also studied, such as metal-complex formation, speciation at different pH conditions and ligand lipophilicity. The Zn-complexes exhibit considerably higher insulin-mimetic activity than the corresponding Mo-analogues. Particularly, the bis(thiomaltolato)zinc(II) complex reveals a very high activity, ascribed to the effect of the thione π character and to the soft nature of the sulfur donor atom enhancing the Zn(II)-ligand affinity and the ligand/complex lipophilicity, two determinant parameters for delivering the metal-drug into the cells. Hence, these preliminary studies indicate that the Zn(thiomaltol)₂ complex can be considered a potential drug candidate for treatment of diabetes mellitus, upon in vivo evaluations.
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Affiliation(s)
- Sílvia Chaves
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
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Chaves S, Dron PI, Danalache FA, Sacoto D, Gano L, Santos MA. Combined chelation based on glycosyl-mono- and bis-hydroxypyridinones for aluminium mobilization: Solution and biodistribution studies. J Inorg Biochem 2009; 103:1521-9. [DOI: 10.1016/j.jinorgbio.2009.07.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 07/06/2009] [Accepted: 07/09/2009] [Indexed: 10/20/2022]
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Gama S, Gil M, Gano L, Farkas E, Amélia Santos M. Combined chelation of bi-functional bis-hydroxypiridinone and mono-hydroxypiridinone: Synthesis, solution and in vivo evaluation. J Inorg Biochem 2009; 103:288-98. [DOI: 10.1016/j.jinorgbio.2008.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Revised: 10/22/2008] [Accepted: 10/28/2008] [Indexed: 10/21/2022]
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Gama S, Dron P, Chaves S, Farkas E, Santos MA. A bis(3-hydroxy-4-pyridinone)-EDTA derivative as a strong chelator for M3+ hard metal ions: complexation ability and selectivity. Dalton Trans 2009:6141-50. [DOI: 10.1039/b904950a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Di Bernardo P, Zanonato PL, Bismondo A, Melchior A, Tolazzi M. Protonation and lanthanide(iii) complexation equilibria of a new tripodal polyaza-polycatechol-amine. Dalton Trans 2009:4236-44. [DOI: 10.1039/b822945g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Grazina R, Gano L, Sebestík J, Amelia Santos M. New tripodal hydroxypyridinone based chelating agents for Fe(III), Al(III) and Ga(III): Synthesis, physico-chemical properties and bioevaluation. J Inorg Biochem 2008; 103:262-73. [PMID: 19062099 DOI: 10.1016/j.jinorgbio.2008.10.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Revised: 10/14/2008] [Accepted: 10/16/2008] [Indexed: 10/21/2022]
Abstract
Two new tris-hydroxypyridinone based compounds (KEMPPr(3,4-HP)(3) and KEMPBu(3,4-HP)(3)) have been developed and studied as strong sequestering agents for iron and the group III of metal ions, aimed as potential pharmacological applications on metal-chelation therapy. Their structure is based on the KEMP acid scaffold to which three 3-hydroxy-4-pyridinone chelating moieties are attached via two different size spacers. After the preparation and characterization of the compounds their physico-chemical properties were studied, in relation with their metal binding affinity and lipophilicity. The KEMPPr(3,4-HP)(3) ligand was also bioassayed to evaluate its in vivo metal sequestering capacity from most organs using an animal model overload with (67)Ga. These studies showed that, for both in solution and in vivo conditions, the compounds have higher metal chelating efficacy than Deferriprone, the commercially available iron chelator in medical application, thus some perspectives are envisaged as potential pharmaceutical drug candidates for chelating therapy.
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Affiliation(s)
- Raquel Grazina
- Centro Química Estrutural, Instituto Superior Técnico-UTL, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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