1
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El-Sayed DS, Sinha L, Soayed AA. Experimental and theoretical quantum chemical studies of 2-(2-acetamidophenyl)-2-oxo-N-(pyridin-2-ylmethyl)acetamide and its copper(II) complex: molecular docking simulation of the designed coordinated ligand with insulin-like growth factor-1 receptor (IGF-1R). BMC Chem 2024; 18:112. [PMID: 38872213 PMCID: PMC11170805 DOI: 10.1186/s13065-024-01217-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 05/29/2024] [Indexed: 06/15/2024] Open
Abstract
Newly synthesized ligand 2-(2- acetamidophenyl)-2-oxo-N-(pyridin-2-ylmethyl)acetamide and its copper(II) complex were characterized by elemental analyses, FT-IR, UV-Vis., ESR, 1H-NMR, and thermal analysis along with the theoretical quantum chemical studies. Combined experimental and theoretical DFT (density functional theory) studies showed the ligand to be a tridentate ligand with three coordinate bonds. The complex was suggested to be in a distorted octahedral structure with dx2-y2 ground state. The activation energy, ΔE*; entropy ΔS*; enthalpy ΔH* and order of reaction has been derived from differential thermogravimetric (DTA) curve, using Horowitz-Metzeger method. The nujol mull electronic spectrum of the ligand and Cu(II) complex have been recorded and the difference of the excited and ground state densities has also been theoretically calculated and plotted to investigate the movement of electrons on excitation. The Cu(II) complex was evaluated for its antibacterial activity against two bacterial species, namely Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Antifungal screening was performed against two species (Condida albicans and Aspergillus flavus). The complex under investigation was found to possess notable biological activity. Molecular docking investigation predicted different types of non-covalent interactions of the synthesized ligand towards Insulin-like growth factor 1 receptor (ID: 5FXR).
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Affiliation(s)
- Doaa S El-Sayed
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, 21321, Alexandria, Egypt.
| | - Leena Sinha
- Department of Physics, University of Lucknow, Lucknow, India
| | - Amina A Soayed
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, 21321, Alexandria, Egypt
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2
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Gibney A, de Paiva REF, Singh V, Fox R, Thompson D, Hennessy J, Slator C, McKenzie CJ, Johansson P, McKee V, Westerlund F, Kellett A. A Click Chemistry-Based Artificial Metallo-Nuclease. Angew Chem Int Ed Engl 2023; 62:e202305759. [PMID: 37338105 DOI: 10.1002/anie.202305759] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
Artificial metallo-nucleases (AMNs) are promising DNA damaging drug candidates. Here, we demonstrate how the 1,2,3-triazole linker produced by the Cu-catalysed azide-alkyne cycloaddition (CuAAC) reaction can be directed to build Cu-binding AMN scaffolds. We selected biologically inert reaction partners tris(azidomethyl)mesitylene and ethynyl-thiophene to develop TC-Thio, a bioactive C3 -symmetric ligand in which three thiophene-triazole moieties are positioned around a central mesitylene core. The ligand was characterised by X-ray crystallography and forms multinuclear CuII and CuI complexes identified by mass spectrometry and rationalised by density functional theory (DFT). Upon Cu coordination, CuII -TC-Thio becomes a potent DNA binding and cleaving agent. Mechanistic studies reveal DNA recognition occurs exclusively at the minor groove with subsequent oxidative damage promoted through a superoxide- and peroxide-dependent pathway. Single molecule imaging of DNA isolated from peripheral blood mononuclear cells shows that the complex has comparable activity to the clinical drug temozolomide, causing DNA damage that is recognised by a combination of base excision repair (BER) enzymes.
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Affiliation(s)
- Alex Gibney
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Dublin, Ireland
| | - Raphael E F de Paiva
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Dublin, Ireland
| | - Vandana Singh
- Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Robert Fox
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Dublin, Ireland
| | - Damien Thompson
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, Department of Physics, University of Limerick, Ireland
| | - Joseph Hennessy
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Dublin, Ireland
| | - Creina Slator
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Dublin, Ireland
| | - Christine J McKenzie
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Pegah Johansson
- Laboratory of Clinical Chemistry, Sahlgrenska University Hospital Gothenburg, Sweden
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Sweden
| | - Vickie McKee
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Dublin, Ireland
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Fredrik Westerlund
- Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Andrew Kellett
- SSPC, the, Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Dublin, Ireland
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3
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Paliwal K, Haldar P, Antharjanam PKS, Kumar M. Synthesis, Characterization, DNA/HSA Interaction, and Cytotoxic Activity of a Copper(II) Thiolate Schiff Base Complex and Its Corresponding Water-Soluble Stable Sulfinato-O Complex Containing Imidazole as a Co-ligand. ACS OMEGA 2023; 8:21948-21968. [PMID: 37360467 PMCID: PMC10286277 DOI: 10.1021/acsomega.3c01853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023]
Abstract
A Cu(II) thiolato complex [CuL(imz)] (1) (H2L = o-HOC6H4C(H)=NC6H4SH-o) and the corresponding water-soluble stable sulfinato-O complex [CuL'(imz)] (2) (H2L' = o-HOC6H4C(H)=NC6H4S(=O)OH) were synthesized and characterized using physicochemical techniques. Compound 2 is found to be a dimer in the solid state as characterized using single-crystal X-ray crystallography. XPS studies clearly showed the differences in the sulfur oxidation states in 1 and 2. Both compounds are found to be monomers in solution as revealed from their four-line X-band electron paramagnetic resonance spectra in CH3CN at room temperature (RT). 1-2 were tested to assess their ability to exhibit DNA binding and cleavage activity. Spectroscopic studies and viscosity experiments suggest that 1-2 bind to CT-DNA through the intercalation mode having moderate binding affinity (Kb ∼ 104 M-1). This is further supported by molecular docking studies of complex 2 with CT-DNA. Both complexes display significant oxidative cleavage of pUC19 DNA. Complex 2 also showed hydrolytic DNA cleavage. The interaction of 1-2 with HSA revealed that they have strong ability to quench the intrinsic fluorescence of HSA by a static quenching mechanism (kq ∼ 1013 M-1 s-1). This is further complemented by Förster resonance energy transfer studies that revealed binding distances of r = 2.85 and 2.75 nm for 1 and 2, respectively, indicating high potential for energy transfer from HSA to complex. 1-2 were capable of inducing conformational changes of HSA at secondary and tertiary levels as observed from synchronous and three-dimensional fluorescence spectroscopy. Molecular docking studies with 2 indicate that it forms strong hydrogen bonds with Gln221 and Arg222 located near the entrance of site-I of HSA. 1-2 showed potential toxicity in human cervical cancer HeLa cells, lung cancer A549 cells, and cisplatin-resistant breast cancer MDA-MB-231 cells and appeared to be most potent against HeLa cells (IC50 = 2.04 μM for 1 and 1.86 μM for 2). In HeLa cells, 1-2 mediated cell cycle arrest in S and G2/M phases, which progressed into apoptosis. Apoptotic features seen from Hoechst and AO/PI staining, damaged cytoskeleton actin viewed from phalloidin staining, and increased caspase-3 activity upon treatment with 1-2 collectively suggested that they induced apoptosis in HeLa cells via caspase activation. This is further supported by western blot analysis of the protein sample extracted from HeLa cells treated with 2.
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Affiliation(s)
- Kumudini Paliwal
- Department
of Chemical Engineering, Birla Institute
of Technology and Science-Pilani, K.K. Birla Goa Campus, Zuarinagar 403726, Goa, India
| | - Paramita Haldar
- Department
of Chemical Engineering, Birla Institute
of Technology and Science-Pilani, K.K. Birla Goa Campus, Zuarinagar 403726, Goa, India
| | | | - Manjuri Kumar
- Department
of Chemical Engineering, Birla Institute
of Technology and Science-Pilani, K.K. Birla Goa Campus, Zuarinagar 403726, Goa, India
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4
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Majumder A, Sk S, Das A, Vijaykumar G, Sahoo MK, Behera JN, Bera M. Ancillary-Ligand-Assisted Variation in Nuclearities Leading to the Formation of Di-, Tri-, and Tetranuclear Copper(II) Complexes with Multifaceted Carboxylate Coordination Chemistry. ACS OMEGA 2022; 7:39985-39997. [PMID: 36385820 PMCID: PMC9647862 DOI: 10.1021/acsomega.2c04627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The self-assembly of a carboxylate-based dinucleating ligand, N,N'-bis[2-carboxybenzomethyl]-N,N'-bis[2-pyridylmethyl]-1,3-diaminopropan-2-ol (H3cpdp), and copper(II) ions in the presence of various exogenous ancillary ligands results in the formation of the new dinuclear complex [Cu2(cpdp)(μ-Hisophth)]4·2H2isophth·21H2O (1), trinuclear complex [Cu3(Hcpdp)(Cl)4] (2), and tetranuclear complex [Cu4(cpdp)(μ-Hphth)(μ4-phth)(piconol)(Cl)2]·3H2O (3) (H2phth = phthalic acid; H2isophth = isophthalic acid; piconol = 2-pyridinemethanol; Cl- = chloride). In methanol-water, the reaction of H3cpdp with CuCl2·2H2O at room temperature leads to the formation of 2. On the other hand, 1 and 3 have been obtained by carrying out the reaction of H3cpdp with CuCl2·2H2O/m-C6H4(CO2Na)2 and CuCl2·2H2O/o-C6H4(CO2Na)2/piconol, respectively, in methanol-water in the presence of NaOH at ambient temperature. All three complexes have been characterized by elemental analysis, molar electrical conductivity and magnetic moment measurements, FTIR, UV-vis spectroscopy, and PXRD, including single-crystal X-ray structural analyses. The molecular structure of 1 is based on a μ-alkoxide and μ-isophthalate-bridged dimeric [Cu2] core; the structure of 2 represents a trimeric [Cu3] core in which a μ-alcohol-bridged dinuclear [Cu2] unit is exclusively coupled with a [CuCl2] species by two μ:η1:η1-syn-anti carboxylate groups forming a triangular motif; the structure of 3 embodies a tetrameric [Cu4] core, with two copper(II) ions in a distorted-octahedral coordination environment, one copper(II) ion in a distorted-trigonal-bipyramidal coordination environment, and the other copper(II) ion in a square-planar coordination environment. In fact, 2 and 3 represent rare examples of copper(II)-based multinuclear complexes showing outstanding features of rich coordination chemistry: (i) using a symmetrical dinucleating ligand, trinuclear complex 2 is generated with four- and five-coordination environments around copper(II) ions; (ii) the unsymmetrical tetranuclear complex 3 is obtained by using the same ligand with four-, five- and six-coordination environments around copper(II) ions; (iii) tetracopper(II) complex 3 shows four different bridging modes of carboxylate groups simultaneously such as μ:η2, μ:η1:η1, μ3:η2:η1:η1, and μ4:η1:η1:η1:η1, the μ4:η1:η1:η1:η1 mode of phthalate being unprecedented. The formation of these [Cu2], [Cu3], and [Cu4] complexes can be controlled by changing the exogenous ancillary ligands and pH of the reaction solutions, thus allowing an effective tuning of the self-assembly. The magnetic susceptibility measurements suggest that the copper centers in all three complexes are antiferromagnetically coupled. The thermal properties of 1-3 have been investigated by thermogravimetric and differential thermal analytical (TGA and DTA) techniques, indicating that the decomposition of all three complexes proceeds via multistep processes.
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Affiliation(s)
- Avishek Majumder
- Department
of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Sujan Sk
- Department
of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Arpan Das
- Department
of Chemical Sciences, Indian Institute of
Science Education & Research-Kolkata, Mohanpur, West Bengal 741246, India
| | - Gonela Vijaykumar
- Department
of Chemical Sciences, Indian Institute of
Science Education & Research-Kolkata, Mohanpur, West Bengal 741246, India
| | - Malaya K. Sahoo
- School
of Chemical Sciences, National Institute
of Science Education & Research, An OCC of Homi Bhabha National
Institute, Bhubaneswar, Khurda, Odisha 752050, India
| | - J. N. Behera
- School
of Chemical Sciences, National Institute
of Science Education & Research, An OCC of Homi Bhabha National
Institute, Bhubaneswar, Khurda, Odisha 752050, India
| | - Manindranath Bera
- Department
of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
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5
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NASKAR RAHUL, GHOSH PARAMITA, MANDAL SUBRATA, JANA SUBRATA, MURMU NABENDU, MONDAL TAPANKUMAR. Palladium(II) complex bearing benzothiazole based O,N,S donor pincer ligand: Study of in-vitro cytotoxicity, interaction with CT-DNA and BSA protein. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02101-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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New Rh(III) chloro complex of a tetradentate S-picolyl azo ligand of acetyl acetone: Synthesis, X-ray structure, spectral characterization, electrochemistry, DFT computation and interaction with DNA. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Khursheed S, Rafiq Wani M, Shadab G, Tabassum S, Arjmand F. Synthesis, Structure Elucidation by Multi-spectroscopic Techniques and Single-crystal X-ray Diffraction of Promising Fluoro/Bromo-substituted-chromone(bpy)copper(II) Anticancer Drug Entities. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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8
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SUGIYAMA J, YONEDA K, YAMADA Y, KOIKAWA M. Synthesis and Crystal Structure of a Dinuclear Cu(II) Complex with N,N,N′, N′-Tetrakis(2-pyridylmethyl)-1,4-xylenediamine. X-RAY STRUCTURE ANALYSIS ONLINE 2022. [DOI: 10.2116/xraystruct.38.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Junya SUGIYAMA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Ko YONEDA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Yasunori YAMADA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Masayuki KOIKAWA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
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9
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Zhao D, Wu Y, Huang W, Gong S, Chen Z. DNA binding, DNA cleavage, cellular uptake, cytotoxicity, and apoptosis-inducing ability of a binuclear Schiff base copper( ii) complex. NEW J CHEM 2022. [DOI: 10.1039/d2nj03077b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A binuclear Schiff base copper(ii) complex could bind to DNA, efficiently cleave DNA, effectively enter the cancer cells, even the nucleus, induce cellular apoptosis, and exhibit potent cytotoxicity against cancer cell lines.
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Affiliation(s)
- Dandan Zhao
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Optoelectronic Material and Technologies, Jianghan University, Wuhan, 430056, P. R. China
| | - Yixuan Wu
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Optoelectronic Material and Technologies, Jianghan University, Wuhan, 430056, P. R. China
| | - Wenxin Huang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Optoelectronic Material and Technologies, Jianghan University, Wuhan, 430056, P. R. China
| | - Silin Gong
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Optoelectronic Material and Technologies, Jianghan University, Wuhan, 430056, P. R. China
| | - Zhanfen Chen
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Optoelectronic Material and Technologies, Jianghan University, Wuhan, 430056, P. R. China
- Wuhan Institutes of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, 430056, P. R. China
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10
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Smits NWG, Rademaker D, Konovalov AI, Siegler MA, Hetterscheid DGH. Influence of the spatial distribution of copper sites on the selectivity of the oxygen reduction reaction. Dalton Trans 2021; 51:1206-1215. [PMID: 34951437 PMCID: PMC8763313 DOI: 10.1039/d1dt03296h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Moving towards a hydrogen economy raises the demand for affordable and efficient catalysts for the oxygen reduction reaction. Cu-bmpa (bmpa = bis(2-picolyl)amine) is shown to have moderate activity, but poor selectivity for the 4-electron reduction of oxygen to water. To enhance the selectivity towards water formation, the cooperative effect of three Cu-bmpa binding sites in a single trinuclear complex is investigated. The catalytic currents in the presence of the trinuclear sites are lower, possibly due to the more rigid structure and therefore higher reorganization energies and/or slower diffusion rates of the catalytic species. Although the oxygen reduction activity of the trinuclear complexes is lower than that of mononuclear Cu-bmpa, the selectivity of the copper mediated oxygen reduction was significantly enhanced towards the 4-electron process due to a cooperative effect between three copper centers that have been positioned in close proximity. These results indicate that the cooperativity between metal ions within biomimetic sites can greatly enhance the ORR selectivity.
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Affiliation(s)
- N W G Smits
- Leiden Institute of Chemistry, Leiden University, P.O. box 9502, 2300 RA Leiden, The Netherlands.
| | - D Rademaker
- Leiden Institute of Chemistry, Leiden University, P.O. box 9502, 2300 RA Leiden, The Netherlands.
| | - A I Konovalov
- Leiden Institute of Chemistry, Leiden University, P.O. box 9502, 2300 RA Leiden, The Netherlands.
| | - M A Siegler
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA
| | - D G H Hetterscheid
- Leiden Institute of Chemistry, Leiden University, P.O. box 9502, 2300 RA Leiden, The Netherlands.
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11
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Levín P, Balsa LM, Silva CP, Herzog AE, Vega A, Pavez J, León IE, Lemus L. Artificial Chemical Nuclease and Cytotoxic Activity of a Mononuclear Copper(I) Complex and a Related Binuclear Double‐Stranded Helicate. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Pedro Levín
- Departamento Química de los Materiales Facultad de Química y Biología Universidad de Santiago de Chile Av. Libertador B. O'Higgins, 3363 Santiago Chile
| | - Lucía M. Balsa
- Centro de Química Inorgánica (CEQUINOR-CONICET-UNLP) Facultad de Ciencias Exactas Universidad Nacional de La Plata Bv 120 1465 La Plata Argentina
| | - Carlos P. Silva
- Departamento Química de los Materiales Facultad de Química y Biología Universidad de Santiago de Chile Av. Libertador B. O'Higgins, 3363 Santiago Chile
- Soft Matter Research and Technology Center, SMAT-C Santiago Chile
| | - Austin E. Herzog
- Chemistry Department Johns Hopkins University Baltimore MD 21218 USA
| | - Andrés Vega
- Departamento de Ciencias Químicas Facultad de Ciencias Exactas Universidad Andrés Bello Viña del Mar Chile
- Centro para el Desarrollo de Nanociencias y Nanotecnología, CEDENNA Santiago Chile
| | - Jorge Pavez
- Departamento Química de los Materiales Facultad de Química y Biología Universidad de Santiago de Chile Av. Libertador B. O'Higgins, 3363 Santiago Chile
- Soft Matter Research and Technology Center, SMAT-C Santiago Chile
| | - Ignacio E. León
- Centro de Química Inorgánica (CEQUINOR-CONICET-UNLP) Facultad de Ciencias Exactas Universidad Nacional de La Plata Bv 120 1465 La Plata Argentina
| | - Luis Lemus
- Departamento Química de los Materiales Facultad de Química y Biología Universidad de Santiago de Chile Av. Libertador B. O'Higgins, 3363 Santiago Chile
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12
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Elsayed SA, Elnabky IM, di Biase A, El‐Hendawy AM. New mixed ligand copper(II) hydrazone‐based complexes: Synthesis, characterization, crystal structure, DNA/RNA/BSA binding, in vitro anticancer, apoptotic activity, and cell cycle analysis. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shadia A. Elsayed
- Chemistry Department, Faculty of Science Damietta University New Damietta 34517 Egypt
| | - Islam M. Elnabky
- Chemistry Department, Faculty of Science Damietta University New Damietta 34517 Egypt
| | - Armando di Biase
- Department of Chemistry University of Milan C. Golgi 19 Milan 20133 Italy
| | - Ahmed M. El‐Hendawy
- Chemistry Department, Faculty of Science Damietta University New Damietta 34517 Egypt
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13
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McStay N, Slator C, Singh V, Gibney A, Westerlund F, Kellett A. Click and Cut: a click chemistry approach to developing oxidative DNA damaging agents. Nucleic Acids Res 2021; 49:10289-10308. [PMID: 34570227 PMCID: PMC8501983 DOI: 10.1093/nar/gkab817] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 01/04/2023] Open
Abstract
Metallodrugs provide important first-line treatment against various forms of human cancer. To overcome chemotherapeutic resistance and widen treatment possibilities, new agents with improved or alternative modes of action are highly sought after. Here, we present a click chemistry strategy for developing DNA damaging metallodrugs. The approach involves the development of a series of polyamine ligands where three primary, secondary or tertiary alkyne-amines were selected and 'clicked' using the copper-catalysed azide-alkyne cycloaddition reaction to a 1,3,5-azide mesitylene core to produce a family of compounds we call the 'Tri-Click' (TC) series. From the isolated library, one dominant ligand (TC1) emerged as a high-affinity copper(II) binding agent with potent DNA recognition and damaging properties. Using a range of in vitro biophysical and molecular techniques-including free radical scavengers, spin trapping antioxidants and base excision repair (BER) enzymes-the oxidative DNA damaging mechanism of copper-bound TC1 was elucidated. This activity was then compared to intracellular results obtained from peripheral blood mononuclear cells exposed to Cu(II)-TC1 where use of BER enzymes and fluorescently modified dNTPs enabled the characterisation and quantification of genomic DNA lesions produced by the complex. The approach can serve as a new avenue for the design of DNA damaging agents with unique activity profiles.
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Affiliation(s)
- Natasha McStay
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
- Synthesis and Solid-State Pharmaceutical Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Creina Slator
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Vandana Singh
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Alex Gibney
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
- Synthesis and Solid-State Pharmaceutical Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Fredrik Westerlund
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Andrew Kellett
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
- Synthesis and Solid-State Pharmaceutical Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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14
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Antibacterial Activity of Co(III) Complexes with Diamine Chelate Ligands against a Broad Spectrum of Bacteria with a DNA Interaction Mechanism. Pharmaceutics 2021; 13:pharmaceutics13070946. [PMID: 34202624 PMCID: PMC8309019 DOI: 10.3390/pharmaceutics13070946] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 11/21/2022] Open
Abstract
Cobalt coordination complexes are very attractive compounds for their therapeutic uses as antiviral, antibacterial, antifungal, antiparasitic, or antitumor agents. Two Co(III) complexes with diamine chelate ligands ([CoCl2(dap)2]Cl (1) and [CoCl2(en)2]Cl (2)) (where dap = 1,3-diaminopropane, en = ethylenediamine) were synthesized and characterized by elemental analysis, an ATR technique, and a scan method and sequentially tested against Gram-positive and Gram-negative bacteria. The minimum inhibitory concentration results revealed that anaerobic and microaerophilic bacteria were found to be the most sensitive; the serial passages assay presented insignificant increases in bacterial resistance to both compounds after 20 passages. The synergy assay showed a significant reduction in the MIC values of nalidixic acid when combined with Compounds (1) or (2). The assessment of cell damage by the complexes was performed using scanning electron microscopy, transmission electron microscopy, and confocal microscopy, which indicated cell membrane permeability, deformation, and altered cell morphology. DNA interaction studies of the Co(III) complexes with plasmid pBR322 using spectrophotometric titration methods revealed that the interaction between Complex (1) or (2) and DNA suggested an electrostatic and intercalative mode of binding, respectively. Furthermore, the DNA cleavage ability of compounds by agarose gel electrophoresis showed nuclease activity for both complexes. The results suggest that the effect of the tested compounds against bacteria can be complex.
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Sangeetha S, Ajaykamal T, Murali M. Copper( ii) complexes of 2-methyl-8-hydroxyquinoline and tri/diimine co-ligand: DFT calculations, DNA and BSA binding, DNA cleavage, cytotoxicity and induction of apoptosis. NEW J CHEM 2021. [DOI: 10.1039/d1nj00392e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Four-coordinate copper(ii) complex cleaves supercoiled ϕX174 RF DNA without reductant while five-coordinate complex cleaves with reductant. The cytotoxicity against cancer cells are higher than cisplatin, less-toxic to normal cells and induce apoptosis.
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Affiliation(s)
- Somasundaram Sangeetha
- Coordination and Bioinorganic Chemistry Research Laboratory
- Department of Chemistry
- National College (Autonomous)
- Tiruchirappalli 620 001
- India
| | | | - Mariappan Murali
- Coordination and Bioinorganic Chemistry Research Laboratory
- Department of Chemistry
- National College (Autonomous)
- Tiruchirappalli 620 001
- India
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16
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Yu Z, Thompson Z, Behnke SL, Fenk KD, Huang D, Shafaat HS, Cowan JA. Metalloglycosidase Mimics: Oxidative Cleavage of Saccharides Promoted by Multinuclear Copper Complexes under Physiological Conditions. Inorg Chem 2020; 59:11218-11222. [PMID: 32799467 DOI: 10.1021/acs.inorgchem.0c01193] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Degradation of saccharides is relevant to the design of catalytic therapeutics, the production of biofuels, inhibition of biofilms, as well as other applications in chemical biology. Herein, we report the design of multinuclear Cu complexes that enable cleavage of saccharides under physiological conditions. Reactivity studies with para-nitrophenyl (pNP)-conjugated carbohydrates show that dinuclear Cu complexes exhibit a synergistic effect and promote faster and more robust cleavage of saccharide substrates, relative to the mononuclear Cu complex, while no further enhancement is observed for the tetranuclear Cu complex. The use of scavengers for reactive oxygen species confirms that saccharide cleavage is promoted by the formation of superoxide and hydroxyl radicals through CuII/I redox chemistry, similar to that observed for native copper-containing lytic polysaccharide monooxygenases (LMPOs). Differences in selectivity for di- and tetranuclear Cu complexes are modest. However, these are the first reported small multinuclear Cu complexes that show selectivity and reactivity against mono- and disaccharide substrates and form a basis for further development of metalloglycosidases for applications in chemical biology.
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Affiliation(s)
- Zhen Yu
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Zechariah Thompson
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Shelby L Behnke
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Kevin D Fenk
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Derrick Huang
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Hannah S Shafaat
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - J A Cowan
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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17
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JANA SUBRATA, NASKAR RAHUL, MANNA CHANDANKUMAR, MONDAL TAPANKUMAR. Synthesis, characterization, X-ray structure and DNA binding study of palladium(II) complex with new thioether containing ONS donor ligand. J CHEM SCI 2020. [DOI: 10.1007/s12039-020-01763-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Castilho N, Gabriel P, Camargo TP, Neves A, Terenzi H. Targeting an Artificial Metal Nuclease to DNA by a Simple Chemical Modification and Its Drastic Effect on Catalysis. ACS Med Chem Lett 2020; 11:286-291. [PMID: 32184958 DOI: 10.1021/acsmedchemlett.9b00289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 08/12/2019] [Indexed: 12/17/2022] Open
Abstract
A novel metal complex was synthesized containing a purine derived ligand in order to increase its binding to DNA. We observed a huge increase in nuclease activity and, quite interestingly, an improvement on DNA sequence selectivity. A potential site of specific cleavage in the presence of a reductant in the reaction medium is suggested. We were able to synthesize a novel metal nuclease with improved activity on DNA, and with sequence specificity when exposed to a coreactant, this opens up new possibilities to create site specific and redox status modulated artificial nucleases.
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Affiliation(s)
- Nathalia Castilho
- Centro de Biologia Molecular Estrutural, Departamento de Bioquímica, Universidade Federal de Santa Catarina, 88040900 Florianópolis-SC, Brazil
| | - Philipe Gabriel
- Centro de Biologia Molecular Estrutural, Departamento de Bioquímica, Universidade Federal de Santa Catarina, 88040900 Florianópolis-SC, Brazil
| | - Tiago Pacheco Camargo
- Departamento de Química, Universidade Federal de Santa Catarina, 88040900 Florianópolis-SC, Brazil
| | - Ademir Neves
- Departamento de Química, Universidade Federal de Santa Catarina, 88040900 Florianópolis-SC, Brazil
| | - Hernán Terenzi
- Centro de Biologia Molecular Estrutural, Departamento de Bioquímica, Universidade Federal de Santa Catarina, 88040900 Florianópolis-SC, Brazil
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19
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Zarei L, Asadi Z, Dusek M, Eigner V. Homodinuclear Ni (II) and Cu (II) Schiff base complexes derived from O-vanillin with a pyrazole bridge: Preparation, crystal structures, DNA and protein (BSA) binding, DNA cleavage, molecular docking and cytotoxicity study. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.02.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Thanneeru S, Milazzo N, Lopes A, Wei Z, Angeles-Boza AM, He J. Synthetic Polymers To Promote Cooperative Cu Activity for O2 Activation: Poly vs Mono. J Am Chem Soc 2019; 141:4252-4256. [DOI: 10.1021/jacs.9b01093] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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DNA cleavage, DNA/HSA binding study, and antiproliferative activity of a phenolate-bridged binuclear copper(II) complex. Biometals 2019; 32:227-240. [DOI: 10.1007/s10534-019-00172-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/14/2019] [Indexed: 12/23/2022]
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22
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Jayamani A, Bellam R, Gopu G, Ojwach SO, Sengottuvelan N. Copper(II) complexes of bidentate mixed ligands as artificial nucleases: Synthesis, crystal structure, characterization and evaluation of biological properties. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.09.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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23
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Sureshbabu P, Mondal M, Sakthivel N, Sabiah S. Phosphoester binding, DNA binding, DNA cleavage and in vitro cytotoxicity studies of simple heteroleptic copper(II) complexes with bidentate ligands. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1527029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Moumita Mondal
- Department of Biotechnology, Pondicherry University, Pondicherry, India
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Molphy Z, Montagner D, Bhat SS, Slator C, Long C, Erxleben A, Kellett A. A phosphate-targeted dinuclear Cu(II) complex combining major groove binding and oxidative DNA cleavage. Nucleic Acids Res 2018; 46:9918-9931. [PMID: 30239938 PMCID: PMC6212767 DOI: 10.1093/nar/gky806] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/05/2018] [Accepted: 09/05/2018] [Indexed: 12/18/2022] Open
Abstract
Free radical generation is an inevitable consequence of aerobic existence and is implicated in a wide variety of pathological conditions including cancer, cardiovascular disease, ageing and neurodegenerative disorder. Free radicals can, however, be used to our advantage since their production is catalysed by synthetic inorganic molecules-termed artificial metallonucleases-that cut DNA strands by oxidative cleavage reactions. Here, we report the rational design and DNA binding interactions of a novel di-Cu2+ artificial metallonuclease [Cu2(tetra-(2-pyridyl)-NMe-naphthalene)Cl4] (Cu2TPNap). Cu2TPNap is a high-affinity binder of duplex DNA with an apparent binding constant (Kapp) of 107 M(bp)-1. The agent binds non-intercalatively in the major groove causing condensation and G-C specific destabilization. Artificial metallonuclease activity occurs in the absence of exogenous reductant, is dependent on superoxide and hydrogen peroxide, and gives rise to single strand DNA breaks. Pre-associative molecular docking studies with the 8-mer d(GGGGCCCC)2, a model for poly[d(G-C)2], identified selective major groove incorporation of the complex with ancillary Cu2+-phosphate backbone binding. Molecular mechanics methods then showed the d(GGGGCCCC)2 adduct to relax about the complex and this interaction is supported by UV melting experiments where poly[d(G-C)2] is selectively destabilized.
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Affiliation(s)
- Zara Molphy
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Diego Montagner
- Department of Chemistry, Maynooth University, Maynooth, Kildare, Ireland
| | - Satish S Bhat
- School of Chemistry, National University of Ireland Galway, Galway, Ireland
| | - Creina Slator
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Conor Long
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Andrea Erxleben
- School of Chemistry, National University of Ireland Galway, Galway, Ireland
- Synthesis and Solid-State Pharmaceutical Centre, School of Chemistry, National University of Ireland Galway, Galway, Ireland
| | - Andrew Kellett
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
- Synthesis and Solid-State Pharmaceutical Centre, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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26
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Murugan E, J NJ, Ariraman M, Rajendran S, Kathirvel J, Akshata CR, Kumar K. Core-Shell Nanostructured Fe 3O 4-Poly(styrene- co-vinylbenzyl chloride) Grafted PPI Dendrimers Stabilized with AuNPs/PdNPs for Efficient Nuclease Activity. ACS OMEGA 2018; 3:13685-13693. [PMID: 30411048 PMCID: PMC6217652 DOI: 10.1021/acsomega.8b01326] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
Four different novel magnetic core-shell nanocomposites stabilized with Au/Pd nanoparticles (NPs) were prepared by a simple procedure and demonstrated their catalytic activity for effective cleavage of pBR322 DNA. Initially, the Fe3O4-poly(styrene-divinylbenzene-vinylbenzyl chloride) (ST-DVB-VBC) matrix functionalized with 3-aminobenzoic acid was prepared and grafted with PPI-G(2) and PPI-G(3) dendrimers. Each core-shell matrix was immobilized with AuNPs and PdNPs separately. The resulting composites were characterized by FT-IR, UV-vis, SEM, TEM, XRD, VSM, XPS, Raman, and TGA. The magnetic core-shell nanocomposites at concentrations from 30 to 50 μM were employed separately to study DNA cleavage by agarose gel electrophoresis. Among the four magnetic core-shell nanocomposites, Fe3O4-poly(ST-DVB-VBC)-PPI-G(3)-AuNPs showed higher activity than others for DNA cleavage, and formed Form-II and -III DNA. When the concentration of Fe3O4-poly(ST-DVB-VBC)-PPI-G(3)-AuNPs was increased from 40 to 45 and 45 to 50 μM, Form-III (linear) DNA was observed with 10 and 22%, respectively, in addition to Form-II. This observation suggests formation of linear DNA from the supercoiled DNA via nicked DNA-intermediated consecutive cleaving process. The magnetic core-shell nanocomposites were stable and monodispersed, and exhibited rapid magnetic response. These properties are crucial for their application in biomolecular separations and targeted drug-delivery in the future.
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Affiliation(s)
- Eagambaram Murugan
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
| | - Nimita Jebaranjitham J
- PG
Department of Chemistry, Women’s
Christian College (An Autonomous Institution Affiliated to University
of Madras), College Road, Chennai 600 006, India
| | - Mathivathanan Ariraman
- Department
of Chemical Engineering, National Chung
Hsing University, Taichung
City 402, Taiwan
| | - Saravanan Rajendran
- Escuela
Universitaria de Ingeniería Mecánica (EUDIM), Universidad de Tarapacá, Avda. General Velásquez, 1775 Arica, Chile
| | - Janankiraman Kathirvel
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
| | - C. R. Akshata
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
| | - Kalpana Kumar
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
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27
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In-situ nickel(II) complexes of 3-(dimethylamino)-1-propylamine based Schiff base ligands: Structural, electrochemical, biomolecular interaction and antimicrobial properties. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.07.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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28
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Wang KH, Gao EJ. Synthesis, crystal structure, DNA binding, molecular docking, cytotoxic activities and apoptosis of two copper (II) complexes constructed by 1,10-phen and semirigid bridge ligands. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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29
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Sundaravadivel E, Reddy GR, Manoj D, Rajendran S, Kandaswamy M, Janakiraman M. DNA binding and cleavage studies of copper(II) complex containing N2O2 Schiff base ligand. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Nazari R, Golchoubian H, Bruno G. Chromotropism studies on copper(II) compounds. Part II. Dinuclear copper(II) complexes with triply-bridged hydroxo, acetate, and halo ligands. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1506113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Roya Nazari
- Department of Chemistry, University of Mazandaran , Babol-sar , Iran
| | - Hamid Golchoubian
- Department of Chemistry, University of Mazandaran , Babol-sar , Iran
| | - Giuseppe Bruno
- Dipartimento di Chimica Inorganica, Università di Messina, Messina , Italy
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31
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Xie AN, Zhang Z, Wang HH, Ali A, Zhang DX, Wang H, Ji LN, Liu HY. DNA-binding, photocleavage and anti-cancer activity of tin(IV) corrole. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618500256] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A new tin(IV) corrole, 5,10,15-tris(4-methoxycarbonylphenyl) corrole tin(IV) (1-Sn) was synthesized and characterized. The DNA binding, photocleavage and anti-cancer activity were studied and compared with its free-base. The interaction of 1-Sn and its free-base 1 with calf thymus DNA had been investigated by spectroscopic methods, viscosity measurements and molecular docking analysis. The results revealed that 1-Sn and 1 could interact with calf thymus DNA via an outside groove binding mode. Furthermore, although 1 displayed no photonuclease activity, 1-Sn exhibited good photonuclease activity as indicated by agarose gel electrophoresis, and superoxide anion might be the active intermediate for the DNA scission. Finally, 1 was nontoxic but 1-Sn displayed cytotoxicity towards A549 tumor cell lines.
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Affiliation(s)
- An-Na Xie
- Department of Chemistry, South China University of Technology, Guangzhou 510640, P.R. China
| | - Zhao Zhang
- Department of Chemistry, South China University of Technology, Guangzhou 510640, P.R. China
| | - Hua-Hua Wang
- Department of Chemistry, South China University of Technology, Guangzhou 510640, P.R. China
| | - Atif Ali
- Department of Chemistry, South China University of Technology, Guangzhou 510640, P.R. China
| | - Dong-Xu Zhang
- Department of Chemistry, South China University of Technology, Guangzhou 510640, P.R. China
| | - Hui Wang
- State Key Laboratory of Optoelectronics Materials and Technologies, Sun-Yat Sen University, Guangzhou 510275, P.R. China
| | - Liang-Nian Ji
- State Key Laboratory of Optoelectronics Materials and Technologies, Sun-Yat Sen University, Guangzhou 510275, P.R. China
| | - Hai-Yang Liu
- Department of Chemistry, South China University of Technology, Guangzhou 510640, P.R. China
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Jana S, Pramanik AK, Manna CK, Mondal TK. Palladium(II) complexes with thioether containing azophenol ligands: Synthesis, characterization, X-ray structure and DNA binding study. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.04.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Synthesis of a zinc(II) complex with hexadentate N 4 S 2 donor thioether ligand: X-ray structure, DNA binding study and DFT computation. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Jiang B, Cai S, Xie J, Feng FM. Nuclease Activity of Diaza-Crown Ether Complexes of Cerium(III) with Different Functional Groups as Side Arms. PROGRESS IN REACTION KINETICS AND MECHANISM 2018. [DOI: 10.3184/146867818x15161889114448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cerium(III) complexes of two ligands of a diaza-crown ether with different functional groups as side arms were synthesised and characterised. The catalytic ability of the cerium(III) complexes for pUC19 DNA cleavage was investigated and compared using agarose gel electrophoresis. The results indicate that the catalytic activity of the complex CeL2 [L2 = 2,2′- (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-diyl) diacetamide] with two carbamoylmethyl groups is significantly higher than the complex CeL1 [L1 = 2,2′- (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-diyl) diethanol] with two hydroxyethyl groups under the same conditions. The optimum catalytic concentrations of CeL1 and CeL2 were 7.69 × 10−5 and 3.08 × 10−5 mol L−1 respectively and excessively high concentrations of the complexes can reduce their catalytic efficiency due to the formation of inactive μ-hydroxo dimers. The optimum catalytic acidities of CeL1 and CeL2 were pH 7.0 and 7.5 respectively and excessively high pH of the reaction system can reduce the catalytic efficiency of the complexes due to the formation of cerium(III) hydroxide. DNA cleavage promoted by the two complexes takes place via the same hydrolytic pathway and so the activity difference of the two complexes is attributed to the stability of the complexes, rather than the catalytic mechanism.
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Affiliation(s)
- Bingying Jiang
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, P.R. China
| | - Shulan Cai
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
| | - Jiaqing Xie
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
| | - Fa-Mei Feng
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
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Kettenmann SD, Louka FR, Marine E, Fischer RC, Mautner FA, Kulak N, Massoud SS. Efficient Artificial Nucleases for Mediating DNA Cleavage Based on Tuning the Steric Effect in the Pyridyl Derivatives of Tripod Tetraamine-Cobalt(II) Complexes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800276] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Febee R. Louka
- Department of Chemistry; University of Louisiana at Lafayette; P.O. Box 44370 70504 Lafayette LA USA
| | - Elise Marine
- Department of Chemistry; University of Louisiana at Lafayette; P.O. Box 44370 70504 Lafayette LA USA
| | - Roland C. Fischer
- Institut für Anorganische Chemische; Technische Universität Graz; Stremayrgasse 9/V 8010 Graz Austria
| | - Franz A. Mautner
- Institut für Physikalische and Theoretische Chemie; Technische Universität Graz; Stremayrgasse 9/II 8010 Graz Austria
| | - Nora Kulak
- Institut für Chemie und Biochemie; Freie Universität Berlin; Fabeckstr. 34/36 14195 Berlin Germany
| | - Salah S. Massoud
- Department of Chemistry; University of Louisiana at Lafayette; P.O. Box 44370 70504 Lafayette LA USA
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36
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Usman M, Arjmand F, Khan RA, Alsalme A, Ahmad M, Bishwas MS, Tabassum S. Tetranuclear cubane Cu4O4 complexes as prospective anticancer agents: Design, synthesis, structural elucidation, magnetism, computational and cytotoxicity studies. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.12.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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37
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Joshi P, Hussain N, Ali SR, Rishu R, Bhardwaj VK. Enhanced activity of trinuclear Zn(ii) complexes towards phosphate ester bond cleavage by introducing three-metal cooperativity. NEW J CHEM 2018. [DOI: 10.1039/c7nj03759g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The catalytic efficiency (DNA binding followed by phosphate ester bond cleavage) of Zn(ii) complexes has been tuned by variation in the nuclearity, flexibility and coordination environment to explore the structure activity correlation.
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Affiliation(s)
- Pooja Joshi
- Department of Chemistry
- D.S.B. Campus
- Kumaun University
- Nainital
- India
| | - Navid Hussain
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Shah Raj Ali
- Department of Chemistry
- D.S.B. Campus
- Kumaun University
- Nainital
- India
| | - Rishu Rishu
- Department of Chemistry
- MCM DAV College for Women
- Chandigarh-160036
- India
| | - Vimal K. Bhardwaj
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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38
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Anacleto B, Gomes P, Correia-Branco A, Silva C, Martel F, Brandão P. Design, structural characterization and cytotoxic properties of copper(I) and copper(II) complexes formed by vitamin B 3 type. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.09.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Agbale CM, Cardoso MH, Galyuon IK, Franco OL. Designing metallodrugs with nuclease and protease activity. Metallomics 2017; 8:1159-1169. [PMID: 27714031 DOI: 10.1039/c6mt00133e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The accidental discovery of cisplatin some 50 years ago generated renewed interest in metallopharmaceuticals. Beyond cisplatin, many useful metallodrugs have been synthesized for the diagnosis and treatment of various diseases, but toxicity concerns, and the propensity to induce chemoresistance and secondary cancers make it imperative to search for novel metallodrugs that address these limitations. The Amino Terminal Cu(ii) and Ni(ii) (ATCUN) binding motif has emerged as a suitable template to design catalytic metallodrugs with nuclease and protease activities. Unlike their classical counterparts, ATCUN-based metallodrugs exhibit low toxicity, employ novel mechanisms to irreversibly inactivate disease-associated genes or proteins providing in principle, a channel to circumvent the rapid emergence of chemoresistance. The ATCUN motif thus presents novel strategies for the treatment of many diseases including cancers, HIV and infections caused by drug-resistant bacteria at the genetic level. This review discusses their design, mechanisms of action and potential for further development to expand their scope of application.
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Affiliation(s)
- Caleb Mawuli Agbale
- School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana and S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil.
| | - Marlon Henrique Cardoso
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil. and Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, 70719-100 Brasília, DF, Brazil and Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, 70910-900 Brasília, DF, Brazil
| | - Isaac Kojo Galyuon
- School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Octávio Luiz Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil. and Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, 70719-100 Brasília, DF, Brazil and Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, 70910-900 Brasília, DF, Brazil
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40
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Mondal AS, Pramanik AK, Patra L, Manna CK, Mondal TK. Synthesis and characterization of a new zinc(II) complex with tetradentate azo-thioether ligand: X-ray structure, DNA binding study and DFT calculation. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.131] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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41
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Asadi Z, Golchin M, Eigner V, Dusek M, Amirghofran Z. A detailed study on the interaction of a novel water-soluble glycine bridged zinc(II) Schiff base coordination polymer with BSA: Synthesis, crystal structure, molecular docking and cytotoxicity effect against A549, Jurkat and Raji cell lines. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.05.066] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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42
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Xie JQ, Cai SL, Feng FM. Transition Metal Complexes of a Diaza-Crown Ether with two Carbamoylmethyl Substituents: Synthesis and Assessment as a Functional Nuclease. PROGRESS IN REACTION KINETICS AND MECHANISM 2017. [DOI: 10.3184/146867817x14806858832144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We report the synthesis, catalytic function and catalytic mechanism of two transition metal complexes (CuL, ZnL) of a diaza-crown ether with two acetylamino side arms [L = 2,2′-(1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-diyl)diacetamide] in the hydrolysis of DNA. Their nuclease functions on pUC19 DNA cleavage were investigated. The results indicated that the active species might be formed by the deprotonation of the water-coordinated molecules in the complex and the optimum pH is 8.0 for both CuL and ZnL. The catalytic activity of CuL is higher than that of ZnL in DNA hydrolytic cleavage due to the difference in the Lewis acidity of the central metal ions, which is contrary to the result with the Cu and Zn complexes of the parent ligand L0 (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane) as artificial nuclease. Comparison studies of DNA cleavage in the presence and absence of several oxygen scavengers showed that these complexes can promote DNA cleavage by a hydrolytic pathway. Our proposed mechanism suggests that the negative charge on the phosphorus oxygen atom of the substrate molecule is dispersed and the intermediate is formed and stabilised by hydrogen bonding between the DNA molecule and the acetylamino group of the complex.
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Affiliation(s)
- Jia-qing Xie
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, P.R. China
| | - Shu-lan Cai
- College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
| | - Fa-mei Feng
- College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
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43
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Singha Mahapatra T, Roy A, Chaudhury S, Dasgupta S, Lal Shrivastava S, Bertolasi V, Ray D. Trapping of a Methanoato Bridge in µ‐1,1,3,3 Mode for [Cu
4
] Aggregate Formation: Synthesis, Steric Control on Nuclearity, Antimicrobial Activity, and DNA‐Interaction Properties. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | - Anupam Roy
- Agricultural and Food Engineering Department Indian Institute of Technology Kharagpur West Bengal India
| | | | - Swagata Dasgupta
- Department of Chemistry Indian Institute of Technology 721302 Kharagpur India
| | - Shankar Lal Shrivastava
- Agricultural and Food Engineering Department Indian Institute of Technology Kharagpur West Bengal India
| | - Valerio Bertolasi
- Dipartimento di Scienze Chimiche e Farmaceutiche and Centro di Strutturistica Diffrattometrica Università di Ferrara Via L. Borsari 46 44121 Ferrara Italy
| | - Debashis Ray
- Department of Chemistry Indian Institute of Technology 721302 Kharagpur India
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44
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Cai SL, Feng FM, Liu FA. Function of the Metallomicelle from an Aza-Crown Ether Complex with an Acetamide Branch as a Highly Potent Promoter of Phosphate Diester Hydrolytic Cleavage. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2015.1088451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Li S, Dai M, Zhang C, Jiang B, Xu J, Zhou D, Gu Z. DNA Cleavage and Condensation Activities of Mono- and Binuclear Hybrid Complexes and Regulation by Graphene Oxide. Molecules 2016; 21:E920. [PMID: 27428945 PMCID: PMC6274443 DOI: 10.3390/molecules21070920] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 06/26/2016] [Accepted: 07/08/2016] [Indexed: 11/25/2022] Open
Abstract
Hybrid complexes with N,N'-bis(2-benzimidazolylmethyl)amine and cyclen moieties are novel enzyme mimics and controlled DNA release materials, which could interact with DNA through three models under different conditions. In this paper, the interactions between plasmid DNA and seven different complexes were investigated, and the methods to change the interaction patterns by graphene oxide (GO) or concentrations were also investigated. The cleavage of pUC19 DNA promoted by target complexes were via hydrolytic or oxidative mechanisms at low concentrations ranging from 3.13 × 10(-7) to 6.25 × 10(-5) mol/L. Dinuclear complexes 2a and 2b can promote the cleavage of plasmid pUC19 DNA to a linear form at pH values below 7.0. Furthermore, binuclear hybrid complexes could condense DNA as nanoparticles above 3.13 × 10(-5) mol/L and partly release DNA by graphene oxide with π-π stacking. Meanwhile, the results also reflected that graphene oxide could prevent DNA from breaking down. Cell viability assays showed dinuclear complexes were safe to normal human hepatic cells at relative high concentrations. The present work might help to develop novel strategies for the design and synthesis of DNA controllable releasing agents, which may be applied to gene delivery and also to exploit the new application for GO.
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Affiliation(s)
- Shuo Li
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Mingxing Dai
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Chunping Zhang
- Jiangsu Key Laboratory of Target Drug and Clinical Application, Xuzhou Medical College, Xuzhou 221004, China.
| | - Bingying Jiang
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Junqiang Xu
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Dewen Zhou
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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46
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Ahn SH, Choi SI, Jung MJ, Nayab S, Lee H. Novel Cobalt(II) complexes containing N,N-di(2-picolyl)amine based ligands; Synthesis, characterization and application towards methyl methacrylate polymerisation. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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47
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Ferreira BJML, Brandão P, Meireles M, Martel F, Correia-Branco A, Fernandes DM, Santos TM, Félix V. Synthesis, structural characterization, cytotoxic properties and DNA binding of a dinuclear copper(II) complex. J Inorg Biochem 2016; 161:9-17. [PMID: 27157979 DOI: 10.1016/j.jinorgbio.2016.04.026] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 04/12/2016] [Accepted: 04/18/2016] [Indexed: 11/19/2022]
Abstract
In this study a novel dinuclear copper(II) complex with adenine and phenanthroline has been synthesized and its structure determined by single crystal X-ray diffraction. In the dinuclear complex [Cu₂(μ-adenine)₂(phen)₂(H2O)2](NO3)4·0.5H2O (phen=1,10-phenanthroline) (1) the two Cu(II) centres exhibit a distorted square pyramidal coordination geometry linked by two nitrogen donors from adenine bridges leading to a Cu-Cu distance of 3.242(3)Å. Intramolecular and intermolecular π⋯π interactions as well as an H-bonding network were observed. The antitumor capacity of the complex has been tested in vitro against human cancer cell lines, cervical carcinoma (HeLa) and colorectal adenocarcinoma (Caco-2), by metabolic tests, using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide as reagent. The complex 1 has remarkable low IC50 values of 0.87±0.06μM (HeLa) and 0.44±0.06μM (Caco-2), when compared with values for cisplatin against the same cell lines. The interaction of complex 1 with calf thymus DNA (CT DNA) was further investigated by absorption and fluorescence spectroscopic methods. A binding constant of 5.09×10(5)M(-1) was obtained from UV-vis absorption studies.
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Affiliation(s)
- B J M Leite Ferreira
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - P Brandão
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - M Meireles
- Departamento de Química e Bioquímica, Centro de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Fátima Martel
- Departamento de Bioquímica, Faculdade de Medicina do Porto e I3S, Universidade do Porto, 4200-319 Porto, Portugal
| | - Ana Correia-Branco
- Departamento de Bioquímica, Faculdade de Medicina do Porto e I3S, Universidade do Porto, 4200-319 Porto, Portugal
| | - Diana M Fernandes
- Departamento de Química e Bioquímica, REQUIMTE/LAQV, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| | - T M Santos
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - V Félix
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal; Departamento de Química, IBIMED and CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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48
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Cheng M, Sun L, Han W, Wang S, Liu Q, Sun X, Xi H. Effect of N ancillary ligands on the structure, nuclearity and magnetic behavior of Cu(ii)–pyrazolecarboxylate complexes. NEW J CHEM 2016. [DOI: 10.1039/c6nj02338j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first discrete cyclic-trinuclear copper(ii)–pyrazolato complex without any μ3 ligand core was synthesized and its magnetic properties were investigated.
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Affiliation(s)
- Meiling Cheng
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Lin Sun
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Wei Han
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Shen Wang
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Qi Liu
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
- State Key Laboratory of Coordination Chemistry
| | - Xiaoqiang Sun
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Haitao Xi
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
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49
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Liu C, Zhu Y, Tang M. Theoretical studies on binding modes of copper-based nucleases with DNA. J Mol Graph Model 2015; 64:11-29. [PMID: 26766349 DOI: 10.1016/j.jmgm.2015.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 01/06/2023]
Abstract
In the present work, molecular simulations were performed for the purpose of predicting the binding modes of four types of copper nucleases (a total 33 compounds) with DNA. Our docking results accurately predicted the groove binding and electrostatic interaction for some copper nucleases with B-DNA. The intercalation modes were also reproduced by "gap DNA". The obtained results demonstrated that the ligand size, length, functional groups and chelate ring size bound to the copper center could influence the binding affinities of copper nucleases. The binding affinities obtained from the docking calculations herein also replicated results found using MM-PBSA approach. The predicted DNA binding modes of copper nucleases with DNA will ultimately help us to better understand the interaction of copper compounds with DNA.
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Affiliation(s)
- Chunmei Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, PR China
| | - Yanyan Zhu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, PR China.
| | - Mingsheng Tang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, PR China.
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50
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Ozarowski A, Calzado CJ, Sharma RP, Kumar S, Jezierska J, Angeli C, Spizzo F, Ferretti V. Metal–Metal Interactions in Trinuclear Copper(II) Complexes [Cu3(RCOO)4(H2TEA)2] and Binuclear [Cu2(RCOO)2(H2TEA)2]. Syntheses and Combined Structural, Magnetic, High-Field Electron Paramagnetic Resonance, and Theoretical Studies. Inorg Chem 2015; 54:11916-34. [DOI: 10.1021/acs.inorgchem.5b02199] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew Ozarowski
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
| | - Carmen J. Calzado
- Departamento de Química Física, Universidad de Sevilla, c/Prof. García González, s/n, 41012 Sevilla, Spain
| | - Raj Pal Sharma
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Santosh Kumar
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Julia Jezierska
- Faculty of Chemistry, Wroclaw University, 14 F. Joliot Curie Str., 50-383 Wroclaw, Poland
| | | | - Federico Spizzo
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, Via Saragat 1, I-44122 Ferrara, Italy
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