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de Souza ÍP, de Melo ACC, Rodrigues BL, Bortoluzzi A, Poole S, Molphy Z, McKee V, Kellett A, Fazzi RB, da Costa Ferreira AM, Pereira-Maia EC. Antitumor copper(II) complexes with hydroxyanthraquinones and N,N-heterocyclic ligands. J Inorg Biochem 2023; 241:112121. [PMID: 36696836 DOI: 10.1016/j.jinorgbio.2023.112121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
Five ternary copper(II) complexes, [Cu2(phen)2(L1)(ClO4)2] (1), [Cu2(phen)2(L1)(DMSO)2](PF6)2 (2), [Cu2(bpy)2(L1)(ClO4)2(H2O)2] (3), [Cu2(dmp)2(L1)(ClO4)2(H2O)2] (4), and [Cu(phen)(L2)]2(ClO4)2 (5), in which phen = 1,10-phenanthroline, bpy = 2,2'-bipyridine, dmp = 2,9-dimethyl-1,10-phenanthroline, H2L1 = 1,4-dihydroxyanthracene-9,10-dione and HL2 = 1-hydroxyanthracene-9,10-dione, DMSO = dimethylsulfoxide, were synthesized and fully characterized. Complex 2 was obtained through the substitution of perchlorate for DMSO. When two hydroxyquinone groups are present, L1 makes a bridge between two Cu(II) ions, which also bind two nitrogens of the respective diimine ligand. The compounds bind to calf thymus DNA and oxidatively cleave pUC19 DNA according to the following order of activity 1 > 4-5 > 3. Furthermore, complexes 1, 3, 4 and 5 inhibit topoisomerase-I activity and the growth of myelogenous leukemia cells with the IC50 values of 1.13, 10.60, 0.078, and 1.84 μmol L-1, respectively. Complexes 1 and 4 are the most active in cancer cells and in DNA cleavage.
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Affiliation(s)
- Ívina P de Souza
- Departamento de Química, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Departamento de Química, Centro Federal de Educação Tecnológica de Minas Gerais, Avenida Amazonas, 5253, 30421-169 Belo Horizonte, MG, Brazil
| | - Ariane C C de Melo
- Departamento de Química, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Bernardo L Rodrigues
- Departamento de Química, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Adailton Bortoluzzi
- Laboratório de Bioinorgânica e Cristalografia, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Simon Poole
- SSPC, the SFI Research Centre for Pharmaceuticals, School of Chemical Science, Dublin City University, Dublin 9, Ireland
| | - Zara Molphy
- SSPC, the SFI Research Centre for Pharmaceuticals, School of Chemical Science, Dublin City University, Dublin 9, Ireland
| | - Vickie McKee
- SSPC, the SFI Research Centre for Pharmaceuticals, School of Chemical Science, Dublin City University, Dublin 9, Ireland; Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Andrew Kellett
- SSPC, the SFI Research Centre for Pharmaceuticals, School of Chemical Science, Dublin City University, Dublin 9, Ireland
| | - Rodrigo B Fazzi
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Ana M da Costa Ferreira
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Elene C Pereira-Maia
- Departamento de Química, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil.
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2
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Configurable fluorescent constructs for detection and discrimination of fluoride and biological phosphates. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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3
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Banerjee S, Roy S, Dharumadurai D, Perumalsamy B, Thirumurugan R, Das S, Chattopadhyay AP, Guin PS. A Co(III) Complex of 1-Amino-4-hydroxy-9,10-anthraquinone Exhibits Apoptotic Action against MCF-7 Human Breast Cancer Cells. ACS OMEGA 2022; 7:1428-1436. [PMID: 35036804 PMCID: PMC8756448 DOI: 10.1021/acsomega.1c06125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
A Co(III) complex of 1-amino-4-hydroxy-9,10-anthraquinone (QH) (Scheme-1) having the molecular formula CoQ3 (Scheme-2) was prepared and characterized by elemental analysis, FTIR spectroscopy, UV-vis spectroscopy, fluorescence spectroscopy, and mass spectrometry. In the absence of a single crystal, the energy-optimized molecular structure of CoQ3 was determined by employing computational methods that was validated using spectroscopic evidences, elemental analysis, and mass spectrometry data. The electrochemical properties of the complex were analyzed using cyclic voltammetry and indicate a substantial modification of the electrochemical properties of the parent amino-hydroxy-9,10-anthraquinone. CoQ3 was thereafter tested on MCF-7 human breast cancer cells. The IC50 value for a 24 h incubation was found to be (95 ± 0.05) μg/mL. The study showed that such cancer cells underwent both early and late apoptosis following the interaction with CoQ3.
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Affiliation(s)
- Somenath Banerjee
- Department
of Chemistry, Shibpur Dinobundhoo Institution
(College), Howrah 711102, West Bengal, India
- Department
of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India
| | - Sanjay Roy
- Department
of Chemistry, Netaji Subhas Open University, Regional Centre Kalyani, Nadia 741235, India
| | - Dhanasekaran Dharumadurai
- Department
of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, India
| | - Balaji Perumalsamy
- National
Centre for Alternatives to Animal Experiments, Bharathidasan University, Tiruchirappalli 620 024, India
| | - Ramasamy Thirumurugan
- National
Centre for Alternatives to Animal Experiments, Bharathidasan University, Tiruchirappalli 620 024, India
| | - Saurabh Das
- Department
of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Kolkata 700032, India
| | | | - Partha Sarathi Guin
- Department
of Chemistry, Shibpur Dinobundhoo Institution
(College), Howrah 711102, West Bengal, India
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4
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Yuan H, Cheng B, Lei J, Jiang L, Han Z. Promoting photocatalytic CO 2 reduction with a molecular copper purpurin chromophore. Nat Commun 2021; 12:1835. [PMID: 33758178 PMCID: PMC7987958 DOI: 10.1038/s41467-021-21923-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/11/2021] [Indexed: 11/09/2022] Open
Abstract
CO2 reduction through artificial photosynthesis represents a prominent strategy toward the conversion of solar energy into fuels or useful chemical feedstocks. In such configuration, designing highly efficient chromophores comprising earth-abundant elements is essential for both light harvesting and electron transfer. Herein, we report that a copper purpurin complex bearing an additional redox-active center in natural organic chromophores is capable to shift the reduction potential 540 mV more negative than its organic dye component. When this copper photosensitizer is employed with an iron porphyrin as the catalyst and 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole as the sacrificial reductant, the system achieves over 16100 turnover number of CO from CO2 with a 95% selectivity (CO vs H2) under visible-light irradiation, which is among the highest reported for a homogeneous noble metal-free system. This work may open up an effective approach for the rational design of highly efficient chromophores in artificial photosynthesis.
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Affiliation(s)
- Huiqing Yuan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Banggui Cheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Jingxiang Lei
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Long Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhiji Han
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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5
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Saha M, Singha S, Chakraborty M, Mazumdar S, Kumar S, Karmakar P, Das S. Characterization of a MnII complex of Alizarin suggests attributes explaining a superior anticancer activity: A comparison with anthracycline drugs. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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6
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Mukherjee Chatterjee S, Jain CK, Singha S, Das P, Roychoudhury S, Majumder HK, Das S. Activity of Co II-Quinalizarin: A Novel Analogue of Anthracycline-Based Anticancer Agents Targets Human DNA Topoisomerase, Whereas Quinalizarin Itself Acts via Formation of Semiquinone on Acute Lymphoblastic Leukemia MOLT-4 and HCT 116 Cells. ACS OMEGA 2018; 3:10255-10266. [PMID: 31459155 PMCID: PMC6644896 DOI: 10.1021/acsomega.8b00706] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/23/2018] [Indexed: 05/13/2023]
Abstract
Quinalizarin (THAQ), a hydroxy-9,10-anthraquinone analogue of the family of anthracycline anticancer drugs and an inhibitor of protein kinase, was observed for its anticancer activity. Because apart from showing anticancer activity, anthracyclines and their analogues also show cardiotoxic side effects, believed to be addressed through metal complex formation; an effort was made to realize this by preparing a CoII complex of THAQ. The aim of this study was to find out if complex formation leads to a decrease in the generation of intermediates that are responsible for toxic side effects. However, because this also meant that efficacy on cancer cells would be compromised, studies were undertaken on two cancer cell lines, namely, acute lymphoblastic leukemia (ALL) MOLT-4 and HCT116 cells. The complex decreases the flow of electrons from NADH to molecular oxygen (O2) in the presence of NADH dehydrogenase forming less semiquinone than THAQ. It showed increased affinity toward DNA with binding constant values remaining constant over the physiological pH range unlike THAQ (for which decrease in binding constant values with increase in pH was observed). The complex is probably a human DNA topoisomerase I and human DNA topoisomerase II poison acting by stabilizing the covalent topoisomerase-cleaved DNA adduct, a phenomenon not observed for THAQ. Activity of the compounds on cancer cells suggests that THAQ was more effective on ALL MOLT-4 cells, whereas the complex performed better on HCT116 cells. Results suggest that the formation of semiquinone probably dominates the action because of THAQ, whereas the performance of the complex is attributed to increased DNA binding, inhibition of topoisomerase, and so forth. Inspite of a decrease in the generation of superoxide by the complex, it did not hamper efficacy on either cell line, probably compensated by improved DNA binding and inhibition of topoisomerase enzymes which are positive attributes of complex formation. A decrease in superoxide formation suggests that the complex could be less cardiotoxic, thus increasing its therapeutic index.
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Affiliation(s)
| | - Chetan Kumar Jain
- Cancer Biology & Inflammatory
Disorder Division and Infectious Diseases and Immunology
Division, Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Soumen Singha
- Department
of Chemistry (Inorganic Section) and Department of Physics, Jadavpur University, Kolkata 700032, India
| | - Piyal Das
- Department
of Chemistry (Inorganic Section) and Department of Physics, Jadavpur University, Kolkata 700032, India
| | - Susanta Roychoudhury
- Cancer Biology & Inflammatory
Disorder Division and Infectious Diseases and Immunology
Division, Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Hemanta Kumar Majumder
- Cancer Biology & Inflammatory
Disorder Division and Infectious Diseases and Immunology
Division, Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Saurabh Das
- Department
of Chemistry (Inorganic Section) and Department of Physics, Jadavpur University, Kolkata 700032, India
- E-mail: , . Phone: +91 33
24572148, +91 33 8902087756. Fax: +91
33 24146223 (S.D.)
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7
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Synthesis, Characterization and Crystal Structure of Polymer [La3(MeBA)8(OH)(o-Phen)(H2O)]n Containing the Novel La6 Cluster Unit. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1277-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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8
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Mandal B, Singha S, Dey SK, Mazumdar S, Kumar S, Karmakar P, Das S. CuIIcomplex of emodin with improved anticancer activity as demonstrated by its performance on HeLa and Hep G2 cells. RSC Adv 2017. [DOI: 10.1039/c7ra06696a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structure of CuIIcomplex of emodin was solved from PXRD data. [CuII(emod)2]2−binds DNA better than emodin. Thermodynamic parameters for binding were found. Complex performs better than emodin on HeLa & Hep G2 cells; not affecting WI 38 normal cells.
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Affiliation(s)
- Bitapi Mandal
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
| | - Soumen Singha
- Department of Physics
- Jadavpur University
- Kolkata-700032
- India
| | | | - Swagata Mazumdar
- Department of Life Science and Biotechnology
- Jadavpur University
- Kolkata-700032
- India
| | - Sanjay Kumar
- Department of Physics
- Jadavpur University
- Kolkata-700032
- India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology
- Jadavpur University
- Kolkata-700032
- India
| | - Saurabh Das
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
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9
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Das P, Jain CK, Roychoudhury S, Majumder HK, Das S. Design, Synthesis andin vitroAnticancer Activity of a Cu(II) Complex of Carminic Acid: A Novel Small Molecule Inhibitor of Human DNA Topoisomerase I and Topoisomerase II. ChemistrySelect 2016. [DOI: 10.1002/slct.201601152] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Piyal Das
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata- 700032 INDIA
- Environmental Engineering Section; MECON Limited; Ranchi - 834 002 INDIA
| | - Chetan Kumar Jain
- Cancer Biology and Inflammatory Disorder Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
- Infectious Diseases and Immunology Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
| | - Susanta Roychoudhury
- Cancer Biology and Inflammatory Disorder Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
| | - Hemanta Kumar Majumder
- Infectious Diseases and Immunology Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
| | - Saurabh Das
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata- 700032 INDIA
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10
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Mandal B, Singha S, Dey SK, Mazumdar S, Mondal TK, Karmakar P, Kumar S, Das S. Synthesis, crystal structure from PXRD of a MnII(purp)2complex, interaction with DNA at different temperatures and pH and lack of stimulated ROS formation by the complex. RSC Adv 2016. [DOI: 10.1039/c6ra09387f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
MnII(purpurin)2crystal structure done from PXRD is the second report on hydroxy-9,10-anthraquinone with a 3d-transition metal. DNA binding of complex is better and ROS generation less than purpurin. Complex maintains biological activity of purpurin.
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Affiliation(s)
- Bitapi Mandal
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
| | - Soumen Singha
- Department of Physics
- Jadavpur University
- Kolkata-700032
- India
| | | | - Swagata Mazumdar
- Department of Life Science and Biotechnology
- Jadavpur University
- Kolkata-700032
- India
| | - Tapan Kumar Mondal
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology
- Jadavpur University
- Kolkata-700032
- India
| | - Sanjay Kumar
- Department of Physics
- Jadavpur University
- Kolkata-700032
- India
| | - Saurabh Das
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
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11
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Roy S, Mondal P, Sengupta PS, Dhak D, Santra RC, Das S, Guin PS. Spectroscopic, computational and electrochemical studies on the formation of the copper complex of 1-amino-4-hydroxy-9,10-anthraquinone and effect of it on superoxide formation by NADH dehydrogenase. Dalton Trans 2015; 44:5428-40. [PMID: 25691434 DOI: 10.1039/c4dt03635b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 1 : 2 copper(II) complex of 1-amino-4-hydroxy-9,10-anthraquinone (QH) having the molecular formula CuQ2 was prepared and characterized by elemental analysis, NMR, FTIR, UV-vis and mass spectroscopy. The powder diffraction of the solid complex, magnetic susceptibility and ESR spectra were also recorded. The presence of the planar anthraquinone moiety in the complex makes it extremely difficult to obtain a single crystal suitable for X-ray diffraction studies. To overcome this problem, density functional theory (DFT) was used to evaluate an optimized structure of CuQ2. In the optimized structure, it was found that there is a tilt of the two planar aromatic anthraquinone rings of the complex with respect to each other in the two planes containing the O-Cu(II)-O plane. The present study is an important addition to the understanding of the structural aspects of metal-anthracyclines because there are only a few reports on the actual structures of metal-anthracyclines. The theoretical vibrational spectrum of the complex was assigned with the help of vibrational energy distribution analysis (VEDA) using potential energy distribution (PED) and compared with experimental results. Being important in producing the biochemical action of this class of molecules, the electrochemical behavior of the complex was studied in aqueous and non-aqueous solvents to find certain electrochemical parameters. In aqueous media, reduction involves a kinetic effect during electron transfer at an electrode surface, which was characterized very carefully using cyclic voltammetry. Electrochemical studies showed a significant modification in the electrochemical properties of 1-amino-4-hydroxy-9,10-anthraquinone (QH) when bound to Cu(II) in the complex compared to those observed for free QH. This suggests that the copper complex might be a good choice as a biologically active molecule, which was reflected in the lack of stimulated superoxide generation by the complex.
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Affiliation(s)
- Sanjay Roy
- Department of Chemistry, Shibpur Dinobundhoo Institution (College), 412/1 G. T. Road (South), Howrah-711102, India.
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12
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13
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Das P, Jain CK, Dey SK, Saha R, Chowdhury AD, Roychoudhury S, Kumar S, Majumder HK, Das S. Synthesis, crystal structure, DNA interaction and in vitro anticancer activity of a Cu(ii) complex of purpurin: dual poison for human DNA topoisomerase I and II. RSC Adv 2014. [DOI: 10.1039/c4ra07127a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Although generation of reactive oxygen species (ROS) by anthracycline anticancer drugs is essential for anti-tumor activity, they make these drugs cardiotoxic.
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Affiliation(s)
- Piyal Das
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
| | - Chetan Kumar Jain
- Cancer Biology & Inflammatory Disorder Division
- Indian Institute of Chemical Biology
- Kolkata-700032, India
- Infectious Diseases and Immunology Division
- Indian Institute of Chemical Biology
| | - Sanjoy K. Dey
- Department of Physics
- Jadavpur University
- Kolkata-700032, India
| | - Rajat Saha
- Department of Physics
- Jadavpur University
- Kolkata-700032, India
| | | | - Susanta Roychoudhury
- Cancer Biology & Inflammatory Disorder Division
- Indian Institute of Chemical Biology
- Kolkata-700032, India
| | - Sanjay Kumar
- Department of Physics
- Jadavpur University
- Kolkata-700032, India
| | - Hemanta Kumar Majumder
- Infectious Diseases and Immunology Division
- Indian Institute of Chemical Biology
- Kolkata-700032, India
| | - Saurabh Das
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
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14
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Interaction of Calf Thymus DNA with the Ni(II) Complex of Sodium 1,4-Dihydroxy-9,10-Anthraquinone-2-Sulphonate: A Novel Method of Analysis Using Cyclic Voltammetry. INTERNATIONAL JOURNAL OF ELECTROCHEMISTRY 2012. [DOI: 10.1155/2012/183745] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hydroxy-9,10-anthraquinones are cheaper alternatives to anthracycline drugs. They closely resemble anthracycline drugs both from a structural and functional viewpoint. Electrochemical behavior of the Ni(II) complex (Na2[Ni(NaLH)2Cl2]⋅2H2O) of sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulphonate (NaLH2), analogue of the core unit of anthracycline anticancer drugs, was studied at physiological pH using cyclic voltammetry. The Ni(II) complex of sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulphonate undergoes diffusion-controlled one-electron reduction that enables performing an electrochemical study on the interaction of the complex with calf thymus DNA. The complex was titrated with increasing concentrations of DNA, and the reduction peak for the unbound complex helped in evaluating binding parameters. Analysis of binding data using nonlinear curve fit in a cyclic voltammetry experiment is the first such attempt. The paper evaluates site size of interaction that also serves as a means to determine stoichiometry of complex formation, between a metal ion and ligand from a DNA interaction study, probably a first of its kind.
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15
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Guin PS, Das S, Mandal PC. Studies on the formation of a complex of Cu(II) with sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulphonate - an analogue of the core unit of anthracycline anticancer drugs and its interaction with calf thymus DNA. J Inorg Biochem 2009; 103:1702-10. [PMID: 19853921 DOI: 10.1016/j.jinorgbio.2009.09.020] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2009] [Revised: 09/19/2009] [Accepted: 09/23/2009] [Indexed: 11/19/2022]
Abstract
Copper(II) forms a complex with sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulphonate (sodium quinizarin-2-sulphonate, NaQSH(2)), an analogue of the core unit of anthracycline antibiotics used in the treatment of cancer. The 1:2 metal-ligand complex is formed in aqueous solution at neutral and acidic pH while in alkaline pH both 1:1 and 1:2 species are formed. The effective stability constant of the 1:2 metal-ligand complex is 9.64x10(16) while that of the 1:1 metal-ligand complex is 9.4x10(9). The 1:2 complex Cu(NaQSH)(2)(H(2)O)(2) was synthesized and characterized by different techniques in solid state and in solution. The complex Cu(NaQSH)(2)(H(2)O)(2) interacts with calf thymus DNA which was studied by fluorescence spectroscopy. The binding constant and site size for the interaction with DNA were determined.
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Affiliation(s)
- Partha Sarathi Guin
- Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, India
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16
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Maji S, Sarkar B, Mobin SM, Fiedler J, Urbanos FA, Jimenez-Aparicio R, Kaim W, Lahiri GK. Valence-State Alternatives in Diastereoisomeric Complexes [(acac)2Ru(μ-QL)Ru(acac)2]n (QL2− = 1,4-Dioxido-9,10-anthraquinone,n = +2, +1, 0, −1, −2). Inorg Chem 2008; 47:5204-11. [DOI: 10.1021/ic800115q] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Somnath Maji
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Biprajit Sarkar
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Shaikh M. Mobin
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Jan Fiedler
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Francisco A. Urbanos
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Reyes Jimenez-Aparicio
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Wolfgang Kaim
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India,
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany,
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic,
- Departamento de Quimica Inorganica, Facultad de Ciencias Quimicas, Universidad Complutenses, Ciudad Universitaria, E-28040 Madrid, Spain
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Sathiyendiran M, Liao RT, Thanasekaran P, Luo TT, Venkataramanan NS, Lee GH, Peng SM, Lu KL. Gondola-Shaped Luminescent Tetrarhenium Metallacycles with Crown-Ether-like Multiple Recognition Sites. Inorg Chem 2006; 45:10052-4. [PMID: 17140209 DOI: 10.1021/ic061886w] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The self-assembly of gondola-shaped tetrarhenium metallacyclophanes was achieved in near quantitative yield from Re(CO)3 corners, a ditopic heterocyclic clip, and a bischelating-bridging unit using an orthogonal-bonding approach. The highly luminescent metallacycles contain crown-ether-like recognition sites, which are capable of selectively recognizing metal ions and planar aromatic molecules.
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18
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A Colorimetric and Fluorometric Chemosensor Based on Quinizarin-Metal Complexes for Alkaline Phosphatase Activity. B KOREAN CHEM SOC 2005. [DOI: 10.5012/bkcs.2005.26.10.1499] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Law GL, Wong KL, Zhou X, Wong WT, Tanner PA. Crystal structure and luminescence of lanthanide monodentate complexes [Ln(C(4)N(4)H(6)O)(2)(H(2)O)(6)]Cl(3) and [Ln(C(4)N(4)H(6)O)(2)(H(2)O)(3)(NO(3))(3)] (Ln = Tb or Eu). Inorg Chem 2005; 44:4142-4. [PMID: 15934740 DOI: 10.1021/ic050115+] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New eight- and nine-coordinate luminescent europium(III) and terbium(III) complexes 1-4 with carbonyl group coordination have been prepared using the monodentate ligand (L) 2,4-diamino-6-hydroxy pyrimidine and characterized by X-ray and spectroscopic methods.
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Affiliation(s)
- Ga-Lai Law
- Department of Chemistry, The University of Hong Kong, Hong Kong S.A.R., P. R. China
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