1
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Kumar S, Choudhary M. Synthetic Aromatic Organic Compounds Bearing 4, 4-Dimethyl-3-Thiosemicarbazide Moiety: Theoretical and Experimental Approach. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2036777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sunil Kumar
- Department of Chemistry, National Institute of Technology Patna, Patna, Bihar, India
| | - Mukesh Choudhary
- Department of Chemistry, National Institute of Technology Patna, Patna, Bihar, India
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2
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Imran M, Khalid M, Jawaria R, Ali A, Asghar MA, Shafiq Z, Assiri MA, Lodhi HM, Braga AA. Exploration of Photophysical and Nonlinear Properties of Salicylaldehyde-Based Functionalized Materials: A Facile Synthetic and DFT Approach. ACS OMEGA 2021; 6:33914-33922. [PMID: 34926938 PMCID: PMC8674987 DOI: 10.1021/acsomega.1c04984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/23/2021] [Indexed: 06/14/2023]
Abstract
The current research presents the synthesis of novel salicylaldehyde thiosemicarbazones (1-6) and their spectroscopic characterization employing UV-visible, Fourier transform infrared spectroscopy, and NMR techniques. Experimental results are compared and validated with the results obtained theoretically by employing density functional theory at the M06 level with the 6-311G (d,p) basis set. Further, various parameters [natural bond orbital (NBO)], linear and nonlinear optical (NLO) properties, and global reactivity parameters (GRPs) are computationally calculated. The NBO approach has confirmed the stability of compounds on account of charge delocalization and hyper conjugative interaction network. Frontier molecular orbital analysis has explained the charge transfer and chemical reactivity capability, while GRPs have led to the analysis of kinetic stability of the studied molecules. Further, the probability of being NLO-active has been theoretically proved by the HOMO/LUMO energy difference (4.133-4.186 eV) and β values (192.778-501.709 a.u). These findings suggest that the studied compounds possess potential NLO applications as they have shown larger NLO values in comparison with that of the urea molecule, and such distinct properties prove their technological importance.
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Affiliation(s)
- Muhammad Imran
- Department
of Chemistry, Faculty of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Muhammad Khalid
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Rifat Jawaria
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Asif Ali
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Muhammad Adnan Asghar
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
| | - Zahid Shafiq
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, Multan 60800, Pakistan
| | - Mohammed A. Assiri
- Department
of Chemistry, Faculty of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Hafiza Munazza Lodhi
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Ataualpa Albert
Carmo Braga
- Departamento
de Química Fundamental, Instituto
de Química, Universidade de São Paulo, Avenida Professor LineuPrestes, 748, São Paulo 05508-000, Brazil
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3
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Khalid M, Jawaria R, Khan MU, Braga AA, Shafiq Z, Imran M, Zafar HM, Irfan A. An Efficient Synthesis, Spectroscopic Characterization, and Optical Nonlinearity Response of Novel Salicylaldehyde Thiosemicarbazone Derivatives. ACS OMEGA 2021; 6:16058-16065. [PMID: 34179651 PMCID: PMC8223424 DOI: 10.1021/acsomega.1c01938] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/03/2021] [Indexed: 05/30/2023]
Abstract
In this study, seven derivatives of salicylaldehyde thiosemicarbazones (1-7) were synthesized by refluxing substituted thiosemicarbazide and salicylaldehyde in an ethanol solvent. Different spectral techniques (UV-vis, IR, and NMR) were used to analyze the prepared compounds (1-7). Accompanied by the experimental study, quantum chemical studies were also carried out at the M06/6-311G(d,p) level. A comparative analysis of the UV-visible spectra and vibrational frequencies between computational and experimental findings was also performed. These comparative data disclosed that both studies were observed to be in excellent agreement. Furthermore, natural bond orbital investigations revealed that nonbonding transitions were significant for the stability of prepared molecules. In addition, frontier molecular orbital (FMO) findings described that a promising charge transfer phenomenon was found in 1-7. The energies of FMOs were further used to determine global reactivity parameters (GRPs). These GRP factors revealed that all synthesized compounds (1-7) contain a greater hardness value (η = 2.1 eV) and a lower softness value (σ = 0.24 eV), which indicated that these compounds were less reactive and more stable. Nonlinear optical (NLO) evaluation displayed that compound 5 consisted of greater values of linear polarizability ⟨α⟩ and third-order polarizability ⟨γ⟩ of 324.93 and 1.69 × 105 a.u., respectively, while compound 3 exhibited a larger value of second-order polarizability (βtotal) of 508.41 a.u. The NLO behavior of these prepared compounds may be significant for the hi-tech NLO applications.
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Affiliation(s)
- Muhammad Khalid
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Rifat Jawaria
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | | | - Ataualpa Albert
Carmo Braga
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo 05508-000, Brazil
| | - Zahid Shafiq
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, 60800 Multan, Pakistan
| | - Muhammad Imran
- Department
of Chemistry, Faculty of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Hafiz Muhammad
Ahmad Zafar
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Ahmad Irfan
- Department
of Chemistry, Faculty of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Research
Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
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4
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Fandzloch M, Jędrzejewski T, Dobrzańska L, Esteban-Parra GM, Wiśniewska J, Paneth A, Paneth P, Sitkowski J. New organometallic ruthenium(ii) complexes with purine analogs - a wide perspective on their biological application. Dalton Trans 2021; 50:5557-5573. [PMID: 33908935 DOI: 10.1039/d0dt03974h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Three half-sandwich organometallic ruthenium(ii) complexes containing purine analogs such as triazolopyrimidines of general formula [(η6-p-cym)Ru(L)Cl2], where p-cym represents p-cymene and L is 5,6,7-trimethyl-1,2,4-triazolo[1,5-a]pyrimidine (tmtp for 1), 5,7-diethyl-1,2,4-triazolo[1,5-a]pyrimidine (detp for 2) and 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one (HmtpO for 3), have been synthesized and characterized by elemental analysis, infrared, multinuclear magnetic resonance spectroscopic techniques (1H, 13C, 15N), and single-crystal X-ray diffraction (for 1 and 2). All these complexes have been thoroughly screened for their in vitro cytotoxicity against MCF-7 and HeLa cell lines as well as L929 murine fibroblast cells, indicating [(η6-p-cym)Ru(HmtpO)Cl2] (3) as the most active representative against the HeLa cell line and simultaneously being 64-fold less toxic to normal L929 murine fibroblast cells than cisplatin. At the same time, 3 has shown antimetastatic activity comparable to NAMI-A against HeLa cells both after 24 and 48 h of treatment in a wound healing assay. In order to better understand the mechanism of anticancer action and differences in the cytotoxic activity of 1-3, the studies were expanded to determining their lipophilicity, the kinetic stability at pH 6.5-8, the effect on reactive oxygen species (ROS) production in HeLa cells and interactions with significant biomolecules (DNA and albumin) by using molecular docking and circular dichroism (CD) experiments. Furthermore, antiparasitic studies against L. braziliensis, L. infantum and T. cruzi reveal that the newly synthesized complexes 1-3 are very promising candidates which can compete with commercial antiparasitic drugs. Complex 3 in particular, on top of exhibiting a high antiparasitic effect (IC50 < 1 μM against two strains), reaches a selectivity index >1000.
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Affiliation(s)
- Marzena Fandzloch
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland.
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5
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Toro PM, Peralta F, Oyarzo J, Wilkinson SR, Zavala M, Arancibia R, Moncada-Basualto M, Brito I, Cisterna J, Klahn AH, López C. Evaluation of trypanocidal properties of ferrocenyl and cyrhetrenyl N-acylhydrazones with pendant 5-nitrofuryl group. J Inorg Biochem 2021; 219:111428. [PMID: 33774450 DOI: 10.1016/j.jinorgbio.2021.111428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/10/2021] [Accepted: 03/14/2021] [Indexed: 12/21/2022]
Abstract
Four N-acylhydrazones of general formulae [R1-C(O)-NH-N=C(R2)(5-nitrofuryl)] with (R1 = ferrocenyl or cyrhetrenyl and R2 = H or Me) are synthesized and characterized in solution and in the solid-state. Comparative studies of their stability in solution under different experimental conditions and their electrochemical properties are reported. NMR studies reveal that the four compounds are stable in DMSO‑d6 and complementary UV-Vis studies confirm that they also exhibit high stability in mixtures DMSO:H2O at 37 °C. Electrochemical studies show that the half-wave potential of the nitro group of the N-acylhydrazones is smaller than that of the standard drug nifurtimox and the reduction process follows a self-protonation mechanism. In vitro studies on the antiparasitic activities of the four complexes and the nifurtimox against Trypanosoma cruzi and Trypanosoma brucei reveal that: i) the N-acylhydrazones have a potent inhibitory growth activity against both parasites [EC50 in the low micromolar (in T. cruzi) or even in the nanomolar (in T. brucei) range] and ii) cyrhetrenyl derivatives are more effective than their ferrocenyl analogs. Parallel studies on the L6 rat skeletal myoblast cell line have also been conducted, and the selectivity indexes determined. Three of the four N-acylhydrazones showed higher selectivity towards T. brucei than the standard drug nifurtimox. Additional studies suggest that the organometallic compounds are bioactivated by type I nitroreductase enzymes.
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Affiliation(s)
- Patricia M Toro
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andrés Bello, Quillota 980, Viña del Mar, Chile.
| | - Francisco Peralta
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile
| | - Juan Oyarzo
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile
| | - Shane R Wilkinson
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Mónica Zavala
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Rodrigo Arancibia
- Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Mauricio Moncada-Basualto
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Iván Brito
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Avda. Universidad de Antofagasta 02800, Campus Coloso, Antofagasta, Chile
| | - Jonathan Cisterna
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Avda. Universidad de Antofagasta 02800, Campus Coloso, Antofagasta, Chile
| | - A Hugo Klahn
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile
| | - Concepción López
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franqués 1-11, E-08028 Barcelona, Spain.
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6
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Cedillo-Gutiérrez EL, Hernández-Ayala LF, Torres-Gutiérrez C, Reina M, Flores-Alamo M, Carrero JC, Ugalde-Saldívar VM, Ruiz-Azuara L. Identification of descriptors for structure-activity relationship in ruthenium (II) mixed compounds with antiparasitic activity. Eur J Med Chem 2020; 189:112084. [DOI: 10.1016/j.ejmech.2020.112084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/19/2020] [Accepted: 01/19/2020] [Indexed: 10/25/2022]
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7
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Jawaria R, Hussain M, Khalid M, Khan MU, Tahir MN, Naseer MM, Braga AAC, Shafiq Z. Synthesis, crystal structure analysis, spectral characterization and nonlinear optical exploration of potent thiosemicarbazones based compounds: A DFT refine experimental study. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.10.035] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Ong YC, Roy S, Andrews PC, Gasser G. Metal Compounds against Neglected Tropical Diseases. Chem Rev 2018; 119:730-796. [DOI: 10.1021/acs.chemrev.8b00338] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yih Ching Ong
- Laboratory for Inorganic Chemical Biology, Chimie ParisTech, PSL University, 11 rue Pierre et Marie Curie, F-75005 Paris, France
| | - Saonli Roy
- Department of Chemistry, University of Zurich, Wintherthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Philip C. Andrews
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia
| | - Gilles Gasser
- Laboratory for Inorganic Chemical Biology, Chimie ParisTech, PSL University, 11 rue Pierre et Marie Curie, F-75005 Paris, France
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9
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Design of prospective antiparasitic metal-based compounds including selected organometallic cores. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.07.068] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Fandzloch M, Arriaga JMM, Sánchez-Moreno M, Wojtczak A, Jezierska J, Sitkowski J, Wiśniewska J, Salas JM, Łakomska I. Strategies for overcoming tropical disease by ruthenium complexes with purine analog: Application against Leishmania spp. and Trypanosoma cruzi. J Inorg Biochem 2017; 176:144-155. [PMID: 28910663 DOI: 10.1016/j.jinorgbio.2017.08.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/01/2017] [Accepted: 08/23/2017] [Indexed: 12/29/2022]
Abstract
Tropical diseases currently constitute a major health problem and thus a challenge in the field of drug discovery. The current treatments show serious disadvantages due to cost, toxicity, long therapy duration and resistance, and the use of metal complexes as chemotherapeutic agents against these ailments appears to be a very attractive alternative. Herein, we describe three newly synthesized ruthenium complexes with a bioactive molecule, the purine analogue 5,6,7-trimethyl-1,2,4-triazolo[1,5-a]pyrimidine (tmtp): cis,fac-[RuCl2(dmso)3(tmtp)] (1), mer-[RuCl3(dmso)(H2O)(tmtp)]·2H2O (2) and fac,cis-[RuCl3(H2O)(tmtp)2] (3). Their structures were characterized using X-ray and spectroscopic methods (IR, NMR or EPR). The stability of the synthesized complexes 1-3 in various buffered solutions (pH=3-7.4) was monitored using conventional and stopped-flow techniques. The in vitro antiproliferative activity of all ruthenium complexes against promastigote forms of Leishmania spp. (L. infantum, L. braziliensis, and L. donovani) and epimastigote forms of Trypanosoma cruzi was investigated. Notably, the results showed that the activity of 1 against L. brasiliensis was more than three-fold higher than that of glucantime, and 1 showed no appreciable toxicity towards J774.2 macrophages. Additionally, 2 displayed even 141-fold lower toxicity against host cells than glucantime, demonstrating significantly higher selectivity than the reference drug. Therefore, 1 and 2 appear to be excellent candidates for further development as potential drugs for the effective treatment of leishmaniasis and Chagas disease. All novel complexes were also shown to be potent inhibitors of Fe-SOD in the studied species, while their effects on human CuZn-SOD were very low.
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Affiliation(s)
- Marzena Fandzloch
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
| | | | - Manuel Sánchez-Moreno
- Department of Parasitology, University of Granada, Severo Ochoa s/n, 18071 Granada, Spain
| | - Andrzej Wojtczak
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Julia Jezierska
- Faculty of Chemistry, Wrocław University, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Jerzy Sitkowski
- National Medicines Institute, Chełmska 30/34, 00-725 Warszawa, Poland; Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland
| | - Joanna Wiśniewska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Juan Manuel Salas
- Department of Inorganic Chemistry, University of Granada, Severo Ochoa s/n, 18071 Granada, Spain
| | - Iwona Łakomska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
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11
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Rhenium(I) tricarbonyl compounds of bioactive thiosemicarbazones: Synthesis, characterization and activity against Trypanosoma cruzi. J Inorg Biochem 2017; 170:125-133. [DOI: 10.1016/j.jinorgbio.2017.01.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/29/2016] [Accepted: 01/20/2017] [Indexed: 11/22/2022]
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12
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Robledo-O'Ryan N, Matos MJ, Vazquez-Rodriguez S, Santana L, Uriarte E, Moncada-Basualto M, Mura F, Lapier M, Maya JD, Olea-Azar C. Synthesis, antioxidant and antichagasic properties of a selected series of hydroxy-3-arylcoumarins. Bioorg Med Chem 2016; 25:621-632. [PMID: 27908757 DOI: 10.1016/j.bmc.2016.11.033] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/30/2016] [Accepted: 11/17/2016] [Indexed: 01/13/2023]
Abstract
Oxidative stress is involved in several parasitic diseases such as Chagas. Agents able to selectively modulate biochemical processes involved in the disease represent promising multifunctional agents for the delay or abolishment of the progression of this pathology. In the current work, differently substituted hydroxy-3-arylcoumarins are described, exerting both antioxidant and trypanocidal activity. Among the compounds synthesized, compound 8 showed the most interesting profile, presenting a moderate scavenging ability for peroxyl radicals (ORAC-FL=2.23) and a high degree of selectivity towards epimastigotes stage of the parasite T. cruzi (IC50=1.31μM), higher than Nifurtimox (drug currently used for treatment of Chagas disease). Interestingly, the current study revealed that small structural changes in the hydroxy-3-arylcoumarin core allow modulating both activities, suggesting that this scaffold has desirable properties for the development of promising classes of antichagasic compounds.
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Affiliation(s)
- Natalia Robledo-O'Ryan
- Free Radical and Antioxidants Laboratory, Inorganic and Analytical Department, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Sergio Livingstone Polhammer 1007, Independencia, Santiago, Chile
| | - Maria João Matos
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain.
| | - Saleta Vazquez-Rodriguez
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Lourdes Santana
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Eugenio Uriarte
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Mauricio Moncada-Basualto
- Free Radical and Antioxidants Laboratory, Inorganic and Analytical Department, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Sergio Livingstone Polhammer 1007, Independencia, Santiago, Chile; Department of Environmental Sciences, Faculty of Chemistry and Biology, University of Santiago of Chile, Santiago, Chile
| | - Francisco Mura
- Free Radical and Antioxidants Laboratory, Inorganic and Analytical Department, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Sergio Livingstone Polhammer 1007, Independencia, Santiago, Chile
| | - Michel Lapier
- Department of Molecular Pharmacology and Clinical, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Juan Diego Maya
- Department of Molecular Pharmacology and Clinical, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Claudio Olea-Azar
- Free Radical and Antioxidants Laboratory, Inorganic and Analytical Department, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Sergio Livingstone Polhammer 1007, Independencia, Santiago, Chile.
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13
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Łakomska I, Stefańczak K, Fandzloch M, Sitkowski J, Filip-Psurska B, Wojtczak A. Use of 1,2,4-triazolo[1,5-a]pyrimidines to design new “piano-stool” ruthenium(II) compounds. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Ruthenium(III) complexes with monodentate 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one: Structural characterization, interaction with DNA and proteins. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.12.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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15
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Rodríguez Arce E, Sarniguet C, Moraes TS, Vieites M, Tomaz AI, Medeiros A, Comini MA, Varela J, Cerecetto H, González M, Marques F, García MH, Otero L, Gambino D. A new ruthenium cyclopentadienyl azole compound with activity on tumor cell lines and trypanosomatid parasites. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1062480] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Esteban Rodríguez Arce
- Facultad de Química, Departamento Estrella Campos, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
| | - Cynthia Sarniguet
- Facultad de Química, Departamento Estrella Campos, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
| | - Tania S. Moraes
- Faculdade de Ciências da, Universidade de Lisboa, CCMM, Lisbon, Portugal
| | - Marisol Vieites
- Facultad de Química, Departamento Estrella Campos, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
| | - A. Isabel Tomaz
- Faculdade de Ciências da, Universidade de Lisboa, CCMM, Lisbon, Portugal
| | - Andrea Medeiros
- Group Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Marcelo A. Comini
- Group Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Javier Varela
- Facultad de Ciencias, Grupo de Química Medicinal, Laboratorio de Química Orgánica, Universidad de la República, Montevideo, Uruguay
| | - Hugo Cerecetto
- Facultad de Ciencias, Grupo de Química Medicinal, Laboratorio de Química Orgánica, Universidad de la República, Montevideo, Uruguay
| | - Mercedes González
- Facultad de Ciencias, Grupo de Química Medicinal, Laboratorio de Química Orgánica, Universidad de la República, Montevideo, Uruguay
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - M. Helena García
- Faculdade de Ciências da, Universidade de Lisboa, CCMM, Lisbon, Portugal
| | - Lucía Otero
- Facultad de Química, Departamento Estrella Campos, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
| | - Dinorah Gambino
- Facultad de Química, Departamento Estrella Campos, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
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16
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Fernández M, Arce ER, Sarniguet C, Morais TS, Tomaz AI, Azar CO, Figueroa R, Diego Maya J, Medeiros A, Comini M, Helena Garcia M, Otero L, Gambino D. Novel ruthenium(II) cyclopentadienyl thiosemicarbazone compounds with antiproliferative activity on pathogenic trypanosomatid parasites. J Inorg Biochem 2015; 153:306-314. [PMID: 26275470 DOI: 10.1016/j.jinorgbio.2015.06.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 06/22/2015] [Accepted: 06/24/2015] [Indexed: 10/23/2022]
Abstract
Searching for new prospective antitrypanosomal agents, three novel Ru(II)-cyclopentadienyl compounds, [Ru(η(5)-C5H5)(PPh3)L], with HL=bioactive 5-nitrofuryl containing thiosemicarbazones were synthesized and characterized in the solid state and in solution. The compounds were evaluated in vitro on the blood circulating trypomastigote form of Trypanosoma cruzi (Dm28c strain), the infective form of Trypanosoma brucei brucei (strain 427) and on J774 murine macrophages and human-derived EA.hy926 endothelial cells. The compounds were active against both parasites with IC50 values in the micromolar or submicromolar range. Interestingly, they are much more active on T. cruzi than previously developed Ru(II) classical and organometallic compounds with the same bioactive ligands. The new compounds showed moderate to very good selectivity towards the parasites in respect to mammalian cells. The global results point at [RuCp(PPh3)L2] (L2=N-methyl derivative of 5-nitrofuryl containing thiosemicarbazone and Cp=cyclopentadienyl) as the most promising compound for further developments (IC50T. cruzi=0.41μM; IC50T. brucei brucei=3.5μM). Moreover, this compound shows excellent selectivity towards T. cruzi (SI>49) and good selectivity towards T. brucei brucei (SI>6). In order to get insight into the mechanism of antiparasitic action, the intracellular free radical production capacity of the new compounds was assessed by ESR. DMPO (5,5-dimethyl-1-pirroline-N-oxide) spin adducts related to the bioreduction of the complexes and to redox cycling processes were characterized. In addition, DNA competitive binding studies with ethidium bromide by fluorescence measurements showed that the compounds interact with this biomolecule.
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Affiliation(s)
- Mariana Fernández
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Esteban Rodríguez Arce
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Cynthia Sarniguet
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Tânia S Morais
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Portugal
| | - Ana Isabel Tomaz
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Portugal
| | - Claudio Olea Azar
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Roberto Figueroa
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - J Diego Maya
- Programa de Farmacología Molecular y Clínica, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Andrea Medeiros
- Institut Pasteur de Montevideo, Group Redox Biology of Trypanosomes, Montevideo, Uruguay; Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Marcelo Comini
- Institut Pasteur de Montevideo, Group Redox Biology of Trypanosomes, Montevideo, Uruguay
| | - M Helena Garcia
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Portugal
| | - Lucía Otero
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay.
| | - Dinorah Gambino
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay.
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Bal-Demirci T, Şahin M, Kondakçı E, Özyürek M, Ülküseven B, Apak R. Synthesis and antioxidant activities of transition metal complexes based 3-hydroxysalicylaldehyde-S-methylthiosemicarbazone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:866-872. [PMID: 25467658 DOI: 10.1016/j.saa.2014.10.088] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 10/12/2014] [Accepted: 10/23/2014] [Indexed: 06/04/2023]
Abstract
The nickel(II), iron(III), oxovanadium(IV) complexes of the 3-hydroxysalicylidene-S-methyl-thiosemicarbazone (L) were obtained from the 3-hydroxysalicyldehyde-S-methylthiosemicarbazone with the R1-substituted-salicylaldehyde (R1: H, 3-OH) in the presence of Ni(II), Fe(III), VO(IV) as template ion. The ligand and its complexes were characterized by elemental analysis, electronic, UV/Vis., (1)HNMR, EPR and IR studies. The free ligand and its metal complexes have been tested for in vitro antioxidant capacity by reduction of copper(II) neocuproine (Cu(II)-Nc) using the CUPRAC method. The ligand exhibited more potent in vitro antioxidant capacity than its complexes. The obtained trolox equivalent antioxidant capacity (TEAC) value of the iron(III) complex (TEACCUPRAC=3.27) was higher than those of other complexes. Furthermore, the antioxidant activity of the free ligand and its complexes were determined by in vitro methods measuring the scavenging activity of reactive oxygen species (ROS) including hydroxyl radical (OH), superoxide anion radical (O2(-)), and hydrogen peroxide (H2O2), showing that especially the V(IV) and Fe(III) complexes had significant scavenging activity for ROS.
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Affiliation(s)
- Tülay Bal-Demirci
- Department of Chemistry, Inorganic Chemistry Section, Istanbul University, 34320 Avcilar, Istanbul, Turkey.
| | - Musa Şahin
- Department of Chemistry, Inorganic Chemistry Section, Istanbul University, 34320 Avcilar, Istanbul, Turkey
| | - Esin Kondakçı
- Department of Chemistry, Analytical Chemistry Section, Istanbul University, 34320 Avcilar, Istanbul, Turkey
| | - Mustafa Özyürek
- Department of Chemistry, Analytical Chemistry Section, Istanbul University, 34320 Avcilar, Istanbul, Turkey
| | - Bahri Ülküseven
- Department of Chemistry, Inorganic Chemistry Section, Istanbul University, 34320 Avcilar, Istanbul, Turkey
| | - Reşat Apak
- Department of Chemistry, Analytical Chemistry Section, Istanbul University, 34320 Avcilar, Istanbul, Turkey
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Cipriani M, Toloza J, Bradford L, Putzu E, Vieites M, Curbelo E, Tomaz AI, Garat B, Guerrero J, Gancheff JS, Maya JD, Olea Azar C, Gambino D, Otero L. Effect of the Metal Ion on the antiT. cruziActivity and Mechanism of Action of 5-Nitrofuryl-Containing Thiosemicarbazone Metal Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402614] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Sarniguet C, Toloza J, Cipriani M, Lapier M, Vieites M, Toledano-Magaña Y, García-Ramos JC, Ruiz-Azuara L, Moreno V, Maya JD, Azar CO, Gambino D, Otero L. Water-soluble ruthenium complexes bearing activity against protozoan parasites. Biol Trace Elem Res 2014; 159:379-92. [PMID: 24740394 DOI: 10.1007/s12011-014-9964-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 03/31/2014] [Indexed: 01/18/2023]
Abstract
Parasitic illnesses are major causes of human disease and misery worldwide. Among them, both amebiasis and Chagas disease, caused by the protozoan parasites, Entamoeba histolytica and Trypanosoma cruzi, are responsible for thousands of annual deaths. The lack of safe and effective chemotherapy and/or the appearance of current drug resistance make the development of novel pharmacological tools for their treatment relevant. In this sense, within the framework of the medicinal inorganic chemistry, metal-based drugs appear to be a good alternative to find a pharmacological answer to parasitic diseases. In this work, novel ruthenium complexes [RuCl2(HL)(HPTA)2]Cl2 with HL=bioactive 5-nitrofuryl containing thiosemicarbazones and PTA=1,3,5-triaza-7-phosphaadamantane have been synthesized and fully characterized. PTA was included as co-ligand in order to modulate complexes aqueous solubility. In fact, obtained complexes were water soluble. Their activity against T. cruzi and E. histolytica was evaluated in vitro. [RuCl2(HL4)(HPTA)2]Cl2 complex, with HL4=N-phenyl-5-nitrofuryl-thiosemicarbazone, was the most active compound against both parasites. In particular, it showed an excellent activity against E. histolytica (half maximal inhibitory concentration (IC50)=5.2 μM), even higher than that of the reference drug metronidazole. In addition, this complex turns out to be selective for E. histolytica (selectivity index (SI)>38). The potential mechanism of antiparasitic action of the obtained ruthenium complexes could involve oxidative stress for both parasites. Additionally, complexes could interact with DNA as second potential target by an intercalative-like mode. Obtained results could be considered a contribution in the search for metal compounds that could be active against multiple parasites.
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Affiliation(s)
- Cynthia Sarniguet
- Cátedra de Química Inorgánica, DEC, Facultad de Química, Universidad de la República, Gral. Flores 2124, C. C. 1157, 11800, Montevideo, Uruguay
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Synthesis, characterization and in vitro anti-Trypanosoma cruzi and anti-Mycobacterium tuberculosis evaluations of cyrhetrenyl and ferrocenyl thiosemicarbazones. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.12.049] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Demoro B, Rossi M, Caruso F, Liebowitz D, Olea-Azar C, Kemmerling U, Maya JD, Guiset H, Moreno V, Pizzo C, Mahler G, Otero L, Gambino D. Potential mechanism of the anti-trypanosomal activity of organoruthenium complexes with bioactive thiosemicarbazones. Biol Trace Elem Res 2013; 153:371-81. [PMID: 23564472 DOI: 10.1007/s12011-013-9653-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 03/25/2013] [Indexed: 11/26/2022]
Abstract
In the search for new metal-based drugs against diseases produced by trypanosomatid parasites, four organoruthenium(II) compounds [Ru2(p-cymene)2(L)2]X2, where L are bioactive 5-nitrofuryl-containing thiosemicarbazones and X = Cl or PF6, had been previously obtained. These compounds had shown activity on Trypanosoma brucei, the etiological agent of African trypanosomiasis. Because of genomic similarities between trypanosomatides, these ruthenium compounds were evaluated, in the current work, on Trypanosoma cruzi, the parasite responsible of American trypanosomiasis (Chagas disease). Two of them showed significant in vitro growth inhibition activity against the infective trypomastigote form of T. cruzi (Dm28c clone, IC50 = 11.69 and 59.42 μM for [Ru2(p-cymene)2(L4)2]Cl2 and [Ru2(p-cymene)2(L1)2]Cl2, respectively, where HL4 = 5-nitrofuryl-N-phenylthiosemicarbazone and HL1 = 5-nitrofurylthiosemicarbazone), showing fairly good selectivities toward trypanosomes with respect to mammalian cells (J774 murine macrophages). Moreover, [Ru2(p-cymene)2(L2)2]Cl2, where HL2 = 5-nitrofuryl-N-methylthiosemicarbazone, was synthesized in order to evaluate the effect of improved solubility on biological behavior. This new chloride salt showed higher activity against T. cruzi than that of the previously synthesized hexafluorophosphate one (Dm28c clone, IC50 = 14.30 μM for the former and 231.3 μM for the latter). In addition, the mode of antitrypanosomal action of the organoruthenium compounds was investigated. The complexes were not only able to generate toxic free radicals through bioreduction but they also interacted with two further potential parasite targets: DNA and cruzipain, a cysteine protease which plays a fundamental role in the biological cycle of these parasites. The results suggest a "multi-target" mechanism of trypanosomicidal action for the obtained complexes.
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Affiliation(s)
- Bruno Demoro
- Cátedra de Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de la República (UdelaR), Gral. Flores 2124, 11800 Montevideo, Uruguay
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Zhou Q, Li P, Lu R, Qian Q, Lei X, Xiao Q, Huang S, Liu L, Huang C, Su W. Synthesis, X-ray Diffraction Study, and Cytotoxicity of a Cationicp-Cymene Ruthenium Chloro Complex Containing a Chelating Semicarbazone Ligand. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300142] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Łakomska I, Fandzloch M, Muzioł T, Lis T, Jezierska J. Synthesis, characterization and antitumor properties of two highly cytotoxic ruthenium(iii) complexes with bulky triazolopyrimidine ligands. Dalton Trans 2013; 42:6219-26. [PMID: 23328694 DOI: 10.1039/c2dt32216a] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Two ruthenium(III) complexes composed of 5,7-ditertbutyl-1,2,4-triazolo[1,5-a]pyrimidine (dbtp) ligands were prepared and structurally characterized by X-ray crystallography, IR, UV-Vis, EPR spectroscopies and cyclic voltammetry (CV). The crystal structures of trans-[RuCl(3)(H(2)O)(dbtp)(2)] 1 and mer-[RuCl(3)(dbtp)(3)]·0.815OCMe(2) 2 showed slightly distorted octahedral geometries with two 1 or three 2 monodentate dbtp ligands bound in a head-to-head orientation. In both complexes, the heterocyclic dbtp ligands were bound to the ruthenium(III) ion through the N3 nitrogen atom. A cytotoxicity assay of both ruthenium(III) compounds against two human cell lines (A549 - non-small cell lung carcinoma and T47D - breast carcinoma) was performed. The ruthenium(III) complexes showed excellent cytotoxicity with IC(50) values in the range of 0.02-2.4 μM against both cancer cell lines. In addition, the in vitro cytotoxic values of the ruthenium(III) compounds were 35-times for 1 and 172-times for 2 higher against T47D than the clinically used antitumor drug cisplatin.
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Affiliation(s)
- Iwona Łakomska
- Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Toruń, Poland.
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25
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Demoro B, de Almeida RFM, Marques F, Matos CP, Otero L, Costa Pessoa J, Santos I, Rodríguez A, Moreno V, Lorenzo J, Gambino D, Tomaz AI. Screening organometallic binuclear thiosemicarbazone ruthenium complexes as potential anti-tumour agents: cytotoxic activity and human serum albumin binding mechanism. Dalton Trans 2013; 42:7131-46. [DOI: 10.1039/c3dt00028a] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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26
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Santos D, Parajón-Costa B, Rossi M, Caruso F, Benítez D, Varela J, Cerecetto H, González M, Gómez N, Caputto ME, Moglioni AG, Moltrasio GY, Finkielsztein LM, Gambino D. Activity on Trypanosoma cruzi, erythrocytes lysis and biologically relevant physicochemical properties of Pd(II) and Pt(II) complexes of thiosemicarbazones derived from 1-indanones. J Inorg Biochem 2012; 117:270-6. [DOI: 10.1016/j.jinorgbio.2012.08.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 08/21/2012] [Accepted: 08/21/2012] [Indexed: 10/27/2022]
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27
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Gambino D, Otero L. Perspectives on what ruthenium-based compounds could offer in the development of potential antiparasitic drugs. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.05.028] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Sensibilidad al benzonidazol de cepas de Trypanosoma cruzi sugiere la circulación de cepas naturalmente resistentes en Colombia. BIOMEDICA 2012. [DOI: 10.7705/biomedica.v32i2.458] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Demoro B, Sarniguet C, Sánchez-Delgado R, Rossi M, Liebowitz D, Caruso F, Olea-Azar C, Moreno V, Medeiros A, Comini MA, Otero L, Gambino D. New organoruthenium complexes with bioactive thiosemicarbazones as co-ligands: potential anti-trypanosomal agents. Dalton Trans 2012; 41:1534-43. [PMID: 22138896 PMCID: PMC3299570 DOI: 10.1039/c1dt11519g] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the search for new therapeutic tools against neglected diseases produced by trypanosomatid parasites, and particularly against African Trypanosomiasis, whose etiological agent is Trypanosoma brucei, organoruthenium compounds with bioactive nitrofuran containing thiosemicarbazones (L) as co-ligands were obtained. Four ruthenium(II) complexes with the formula [Ru(2)(p-cymene)(2)(L)(2)]X(2), where X = Cl or PF(6), were synthesized and the crystal structures of two of them were solved by X-ray diffraction methods. Two of the complexes show significant in vitro growth inhibition activity against Trypanosoma brucei brucei and are highly selective towards trypanosomal cells with respect to mammalian cells (J774 murine macrophages). These promising results make the title organoruthenium compounds good lead candidates for further developments towards potential antitrypanosomal organometallic drugs.
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Affiliation(s)
- Bruno Demoro
- Departamento Estrella Campos, Facultad de Química, Universidad de la Repúublica (UdelaR), Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Cynthia Sarniguet
- Departamento Estrella Campos, Facultad de Química, Universidad de la Repúublica (UdelaR), Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Roberto Sánchez-Delgado
- Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, Brooklyn, New York, 11210, USA
| | - Miriam Rossi
- Department of Chemistry, Vassar College, Poughkeepsie, New York, 12604-0484, USA
| | - Daniel Liebowitz
- Department of Chemistry, Vassar College, Poughkeepsie, New York, 12604-0484, USA
| | - Francesco Caruso
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, c/o Università di Roma La Sapienza, Vecchio Istituto Chimico, P.le Aldo Moro 5, 00185, Rome, Italy
| | - Claudio Olea-Azar
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla, 233, Santiago, Chile
| | - Virtudes Moreno
- Departamento de Química Inorganica, Universitat Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain
| | - Andrea Medeiros
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
- Group Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Mataojo 2020, CP 11400, Montevideo, Uruguay
| | - Marcelo A. Comini
- Group Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Mataojo 2020, CP 11400, Montevideo, Uruguay
| | - Lucía Otero
- Departamento Estrella Campos, Facultad de Química, Universidad de la Repúublica (UdelaR), Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Dinorah Gambino
- Departamento Estrella Campos, Facultad de Química, Universidad de la Repúublica (UdelaR), Gral. Flores 2124, 11800, Montevideo, Uruguay
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Vieites M, Smircich P, Pagano M, Otero L, Fischer FL, Terenzi H, Prieto MJ, Moreno V, Garat B, Gambino D. DNA as molecular target of analogous palladium and platinum anti-Trypanosoma cruzi compounds: A comparative study. J Inorg Biochem 2011; 105:1704-11. [DOI: 10.1016/j.jinorgbio.2011.07.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 07/24/2011] [Accepted: 07/25/2011] [Indexed: 12/01/2022]
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31
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Caputto ME, Fabian LE, Benítez D, Merlino A, Ríos N, Cerecetto H, Moltrasio GY, Moglioni AG, González M, Finkielsztein LM. Thiosemicarbazones derived from 1-indanones as new anti-Trypanosoma cruzi agents. Bioorg Med Chem 2011; 19:6818-26. [DOI: 10.1016/j.bmc.2011.09.037] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 09/14/2011] [Accepted: 09/20/2011] [Indexed: 11/25/2022]
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Benítez J, Becco L, Correia I, Leal SM, Guiset H, Pessoa JC, Lorenzo J, Tanco S, Escobar P, Moreno V, Garat B, Gambino D. Vanadium polypyridyl compounds as potential antiparasitic and antitumoral agents: new achievements. J Inorg Biochem 2010; 105:303-12. [PMID: 21194632 DOI: 10.1016/j.jinorgbio.2010.11.001] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2010] [Revised: 10/30/2010] [Accepted: 11/02/2010] [Indexed: 11/26/2022]
Abstract
In the search for new therapeutic tools against diseases produced by kinetoplastid parasites five vanadyl complexes, [V(IV)O(L-2H)(phen)], including 1,10-phenanthroline (phen) and tridentate salicylaldehyde semicarbazone derivatives as ligands have been synthesized and characterized in the solid state and in solution by using different techniques. EPR suggested a distorted octahedral geometry with the tridentate semicarbazone occupying three equatorial positions and phen coordinated in an equatorial/axial mode. The compounds were evaluated in vitro on epimastigotes of Trypanosoma cruzi, causative agent of Chagas disease, Leishmania panamensis and Leishmania chagasi and on tumor cells. The complexes showed higher in vitro anti-trypanosomal activities than the reference drug Nifurtimox (IC(50) values in the range 1.6-3.8 μM) and increased activities in respect to the free semicarbazone ligands. In vitro activity on promastigote and amastigote forms of Leishmania showed interesting results. The compounds [VO(L1-2H)(phen)] and [VO(L3-2H)(phen)], where L1 = 2-hydroxybenzaldehyde semicarbazone and L3 = 2-hydroxy-3-methoxybenzaldehyde semicarbazone, resulted active (IC(50) 2.74 and 2.75 μM, respectively, on promastigotes of L. panamensis; IC(50) 19.52 and 20.75 μM, respectively, on intracellular amastigotes of L. panamensis) and showed low toxicity on THP-1 mammalian cells (IC(50) 188.55 and 88.13 μM, respectively). In addition, the complexes showed cytotoxicity on human promyelocytic leukemia HL-60 cells with IC(50) values of the same order of magnitude as cisplatin. The interaction of the complexes with DNA was demonstrated by different techniques, suggesting that this biomolecule could be a potential target either in the parasites or in tumor cells.
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Affiliation(s)
- Julio Benítez
- Facultad de Química, UDELAR, Gral. Flores 2124, 11800 Montevideo, Uruguay
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Cerecetto H, González M. Synthetic Medicinal Chemistry in Chagas' Disease: Compounds at The Final Stage of "Hit-To-Lead" Phase. Pharmaceuticals (Basel) 2010; 3:810-838. [PMID: 27713281 PMCID: PMC4034012 DOI: 10.3390/ph3040810] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 03/15/2010] [Accepted: 03/19/2010] [Indexed: 11/16/2022] Open
Abstract
Chagas' disease, or American trypanosomosiasis, has been the most relevant illness produced by protozoa in Latin America. Synthetic medicinal chemistry efforts have provided an extensive number of chemodiverse hits at the "active-to-hit" stage. However, only a more limited number of these have been studied in vivo in models of Chagas' disease. Herein, we survey some of the cantidates able to surpass the "hit-to-lead" stage discussing their limitations or merit to enter in clinical trials in the short term.
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Affiliation(s)
- Hugo Cerecetto
- Departamento de Química Orgánica, Facultad de Química, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
| | - Mercedes González
- Laboratorio de Química Orgánica, Instituto de Química Biológica-Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
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