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Vásquez B, Bayas M, Dreyse P, Palma JL, Cabrera AR, Rossin E, Natali M, Saldias C, González-Pavez I. Synthesis and Characterization of Iridium(III) Complexes with Substituted Phenylimidazo(4,5- f)1,10-phenanthroline Ancillary Ligands and Their Application in LEC Devices. Molecules 2023; 29:53. [PMID: 38202636 PMCID: PMC10779995 DOI: 10.3390/molecules29010053] [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: 11/06/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
In this work, we report on the synthesis and characterization of six new iridium(III) complexes of the type [Ir(C^N)2(N^N)]+ using 2-phenylpyridine (C1-3) and its fluorinated derivative (C4-6) as cyclometalating ligands (C^N) and R-phenylimidazo(4,5-f)1,10-phenanthroline (R = H, CH3, F) as the ancillary ligand (N^N). These luminescent complexes have been fully characterized through optical and electrochemical studies. In solution, the C4-6 series exhibits quantum yields (Ф) twice as high as the C1-3 series, exceeding 60% in dichloromethane and where 3MLCT/3LLCT and 3LC emissions participate in the phenomenon. These complexes were employed in the active layer of light-emitting electrochemical cells (LECs). Device performance of maximum luminance values of up to 21.7 Lx at 14.7 V were observed for the C2 complex and long lifetimes for the C1-3 series. These values are counterintuitive to the quantum yields observed in solution. Thus, we established that the rigidity of the system and the structure of the solid matrix dramatically affect the electronic properties of the complex. This research contributes to understanding the effects of the modifications in the ancillary and cyclometalating ligands, the photophysics of the complexes, and their performance in LEC devices.
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Affiliation(s)
- Bárbara Vásquez
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontifica Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul 7820436, Chile;
- Departamento de Química, Facultad de Ciencias Naturales, Matemática y del Medio Ambiente, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Ñuñoa, Santiago 7800003, Chile
| | - Max Bayas
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul 7820436, Chile (A.R.C.)
| | - Paulina Dreyse
- Department of Chemistry, Faculty of Science, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile
| | - Juan Luis Palma
- Engineering School, Universidad Central de Chile, Santa Isabel 1186, Santiago 8330601, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago 9170124, Chile
| | - Alan R. Cabrera
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul 7820436, Chile (A.R.C.)
| | - Elena Rossin
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università degli Studi di Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy (M.N.)
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Mirco Natali
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università degli Studi di Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy (M.N.)
| | - Cesar Saldias
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontifica Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul 7820436, Chile;
| | - Iván González-Pavez
- Departamento de Química, Facultad de Ciencias Naturales, Matemática y del Medio Ambiente, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Ñuñoa, Santiago 7800003, Chile
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Guo YX, Liu M, Zhou YQ, Bi XD, Gao F. Terpyridyl ruthenium complexes as visible spectral probe for poly(A) RNA and bifunctional TAR RNA binders and HIV-1 reverse transcriptase inhibitors. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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3
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Wang MF, Li Y, Bi XD, Guo YX, Liu M, Zhang H, Gao F. Polypyridyl ruthenium complexes as bifunctional TAR RNA binders and HIV-1 reverse transcriptase inhibitors. J Inorg Biochem 2022; 234:111880. [DOI: 10.1016/j.jinorgbio.2022.111880] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/28/2022] [Accepted: 05/28/2022] [Indexed: 12/18/2022]
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4
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Nie Y, Dai Z, Fozia, Zhao G, Jiang J, Xu X, Ying M, Wang Y, Hu Z, Xu H. Comparative Studies on DNA-Binding Mechanisms between Enantiomers of a Polypyridyl Ruthenium(II) Complex. J Phys Chem B 2022; 126:4787-4798. [PMID: 35731588 DOI: 10.1021/acs.jpcb.2c02104] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A pair of ruthenium(II) complex enantiomers, Δ- and Λ-[Ru(bpy)2MBIP]2+ (bpy = 2,2'-bipyridine, MBIP = 2-(3-bromophenyl)imidazo[5,6-f]phenanthroline), were designed, synthesized, and characterized. Comparative studies between the enantiomers on their binding behaviors to calf thymus DNA (CT-DNA) were conducted using UV-visible, fluorescence, and circular dichroism spectroscopies, viscosity measurements, isothermal titration calorimetry, a photocleavage experiment, and molecular simulation. The experimental results indicated that both the enantiomers spontaneously bound to CT-DNA through intercalation stabilized by the van der Waals force or the hydrogen bond and driven by enthalpy and that Δ-[Ru(bpy)2MBIP]2+ intercalated into DNA more deeply than Λ-[Ru(bpy)2MBIP]2+ did and exhibited a better DNA photocleavage ability. Molecular simulation further indicated that Δ-[Ru(bpy)2MBIP]2+ more preferentially intercalated between the base pairs of CT-DNA to the major groove, and Λ-[Ru(bpy)2MBIP]2+ more favorably intercalated to the minor groove. These research findings should be very helpful to the understanding of the stereoselectivity mechanism of DNA-bindings of metal complexes, and be useful for the design of novel metal-complex-based antitumor drugs with higher efficacy and lower toxicity.
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Affiliation(s)
- Yanhong Nie
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Zhongming Dai
- Shenzhen University General Hospital, Shenzhen 518060, P. R. China
| | - Fozia
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China.,China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Guangyao Zhao
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Jianrong Jiang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Xu Xu
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Ming Ying
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yu Wang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Zhangli Hu
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, P. R. China
| | - Hong Xu
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Longhua Innovation Institute for Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
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Tripathi M, Asatkar AK, Antony S, Dash MK, Roymahapatra G, Pande R, Sarkar A, Aldakheel FM, Binshaya AS, Alharthi NS, Alaofi AL, Alqahtani MS, Syed R. Copper(ii) complexes supported by modified azo-based ligands: Nucleic acid binding and molecular docking studies. OPEN CHEM 2022; 20:505-516. [DOI: 10.1515/chem-2022-0164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2024] Open
Abstract
Abstract
Two new copper(ii) complexes [CuL1] (1) and [CuL2] (2) derived from azo-based ligands 2-hydroxy-5-p-tolylazo-benzaldehyde (HL1) and 1-(2-hydroxy-5-p-tolylazo-phenyl)-ethan-one (HL2) were synthesized. These two ligands and their metal complexes were characterized by elemental analysis, nuclear magnetic resonance (1H and 13C), infrared, and UV/Vis spectroscopic techniques. Spectroscopy and other theoretical studies reveal the geometry of copper complexes, and their binding affinity towards nucleic acids are major groove binding.
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Affiliation(s)
- Mamta Tripathi
- School of Studies in Chemistry, Pt. Ravishankar Shukla University , Raipur , 492010, Chhattisgarh , India
| | - Ashish Kumar Asatkar
- Department of Chemistry, Government Gundadhur P. G. College , Kondagaon , 494226, Chhattisgarh , India
| | - Stalin Antony
- Department of Traditional Chinese Medicine, State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University , Hangzhou , 311300 , China
| | - Mrinal Kanti Dash
- Department of Applied Sciences, Haldia Institute of Technology , Haldia , 721657 , India
| | | | - Rama Pande
- School of Studies in Chemistry, Pt. Ravishankar Shukla University , Raipur , 492010, Chhattisgarh , India
| | - Avijit Sarkar
- Department of Chemistry, Bhairab Ganguly College , Belghoria , Kolkata, 700056 , India
| | - Fahad M. Aldakheel
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University , Riyadh , 11433 , Saudi Arabia
| | - Abdulkarim S. Binshaya
- Department of Medical Laboratory Sciences, College of Medical Sciences, Prince Sattam bin Abdulaziz University (PSAU) , Alkharz , Saudi Arabia
| | - Nahed S. Alharthi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University (PSAU) , Alkharj , Saudi Arabia
| | - Ahmed L. Alaofi
- Department of Pharmaceutics, College of Pharmacy, King Saud University , P.O Box. 2457 , Riyadh , 11451 , Kingdom of Saudi Arabia
| | - Mohammed S. Alqahtani
- Department of Pharmaceutics, College of Pharmacy, King Saud University , P.O Box. 2457 , Riyadh , 11451 , Kingdom of Saudi Arabia
| | - Rabbani Syed
- Department of Pharmaceutics, College of Pharmacy, King Saud University , P.O Box. 2457 , Riyadh , 11451 , Kingdom of Saudi Arabia
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6
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Synthesis, structural characterization and in vitro cytotoxic evaluation of mixed Cu(II)/Co(II) levofloxacin–bipyridyl complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Selvam P, De S, Paira P, Kumar SKA, Kumar R S, Moorthy A, Ghosh A, Kuo YC, Banerjee S, Jenifer SK. In vitro studies on the selective cytotoxic effect of luminescent Ru( ii)- p-cymene complexes of imidazo-pyridine and imidazo quinoline ligands. Dalton Trans 2022; 51:17263-17276. [DOI: 10.1039/d2dt02237k] [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
In recent years, Ru(ii) complexes have gained high importance in medicinal chemistry due to their significant anti-cancer activities, which are directly related to their DNA binding ability.
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Affiliation(s)
- Pravinkumar Selvam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Sourav De
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan 62102, Republic of China
| | - Priyankar Paira
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - S. K. Ashok Kumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Selva Kumar R
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Science (SIMATS), Chennai – 602105, Tamil Nadu, India
| | - Anbalagan Moorthy
- Department of Biotechnology, School of Bioscience & Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Arjita Ghosh
- Department of Biotechnology, School of Bioscience & Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Yung-Chih Kuo
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan 62102, Republic of China
| | - Subhasis Banerjee
- Department of Pharmaceutical Chemistry, Gupta College of Technological Sciences. Asansol-713301, West Bengal, India
| | - Shantha Kumar Jenifer
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai – 600 036, India
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8
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Arjmand F, Afsan Z, Roisnel T. Design, synthesis and characterization of novel chromone based-copper(ii) antitumor agents with N, N-donor ligands: comparative DNA/RNA binding profile and cytotoxicity. RSC Adv 2018; 8:37375-37390. [PMID: 35557803 PMCID: PMC9089433 DOI: 10.1039/c8ra06722h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 10/23/2018] [Indexed: 01/05/2023] Open
Abstract
A series of new chromone based-Cu(ii) complexes 1-3 derived from bioactive pharmacophore, 3-formylchromone and N,N-donor ligands viz., 1,10-phenanthroline, 2,2'-bipyridine and 1R,2R-DACH were synthesized as potential antitumor agents and thoroughly characterized by UV-vis, FT-IR, EPR, ESI-MS and elemental analysis. Single X-crystal diffraction studies of complex 2 revealed triclinic P1̄ space group with square pyramidal geometry around the Cu(ii) center. Comparative in vitro binding studies with ct-DNA and tRNA were carried out using absorption and emission titration experiments which revealed intercalative mode of binding with higher binding propensity of complexes 1-3 towards tRNA as compared to ct-DNA. Additionally, complex 1 exhibited high binding affinity among all the three complexes due to the involvement of phen co-ligands via π-stacking interactions in between nucleic acid base pairs. Furthermore, Hirshfeld surface analysis was carried out for complex 2 to investigate various intra and intermolecular non-covalent interactions (H-bonding, C-H⋯π etc.) accountable for stabilization of crystal lattice. The cleavage activity of complex 1 was performed by gel electrophoretic assay with pBR322 DNA and tRNA which revealed efficient DNA/tRNA cleaving ability of complex, suggesting tRNA cleavage both concentration and time dependent. Furthermore, in vitro cytotoxic activity of complexes 1-3 on a selected panel of human cancer cell lines was performed which revealed that all three complexes exhibited remarkably good cytotoxic activity with GI50 value < 10 μg mL-1 (<20 μM).
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Affiliation(s)
- Farukh Arjmand
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 India +91 5712703893
| | - Zeenat Afsan
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 India +91 5712703893
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes, UMR 6226, Université de Rennes 1 Campus de Beaulieu Bâtiment 10B, Bureau 15335042 Rennes France
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Comparative studies on DNA-binding and in vitro antitumor activity of enantiomeric ruthenium(II) complexes. J Inorg Biochem 2018; 180:54-60. [DOI: 10.1016/j.jinorgbio.2017.11.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/31/2017] [Accepted: 11/26/2017] [Indexed: 02/07/2023]
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10
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Yousuf I, Usman M, Ahmad M, Tabassum S, Arjmand F. Single X-ray crystal structure, DFT studies and topoisomerase I inhibition activity of a tailored ionic Ag( i) nalidixic acid–piperazinium drug entity specific for pancreatic cancer cells. NEW J CHEM 2018; 42:506-519. [DOI: 10.1039/c7nj03602g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
DFT studies, Topo I inhibition assay and cytotoxic activity of novel ionic Ag(i) nalidixic acid–piperazinium molecular entity.
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Affiliation(s)
- Imtiyaz Yousuf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Mohammad Usman
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Musheer Ahmad
- Department of Applied Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Sartaj Tabassum
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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11
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Belej D, Jurasekova Z, Nemergut M, Wagnieres G, Jancura D, Huntosova V. Negligible interaction of [Ru(Phen) 3] 2+ with human serum albumin makes it promising for a reliable invivo assessment of the tissue oxygenation. J Inorg Biochem 2017; 174:37-44. [PMID: 28599130 DOI: 10.1016/j.jinorgbio.2017.05.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 05/23/2017] [Accepted: 05/30/2017] [Indexed: 10/19/2022]
Abstract
The interaction between a ruthenium - based water soluble oxygen probe ([Ru(Phen)3]2+, phen - phenanthroline) and human serum albumin (HSA) was investigated with the aim of describing the influence of HSA on the [Ru(Phen)3]2+ luminescence properties. Nowadays, several oxygen sensitive luminescent probes are used to determine the oxygen level in different compartments of living organisms. However, they can interact, depending on their hydrophilic/hydrophobic characters, with various serum proteins, and/or lipids, during their utilization for invivo oxygen measurement. Since HSA is the most abundant serum protein in most biological organisms, its presence may affect the spectral properties of the employed probes and, consequently, the determination of the oxygen concentration. Having this in mind, we have applied several spectroscopic and calorimetric techniques to study [Ru(Phen)3]2+ - HSA mixtures. Only a negligible effect of HSA on the absorption and luminescence spectra of [Ru(Phen)3]2+ was observed. In addition, differential scanning calorimetric studies showed that [Ru(Phen)3]2+ does not significantly influence HSA thermal stability. Importantly, [Ru(Phen)3]2+ retained a reliable luminescence lifetime sensitivity to the oxygen concentration in solutions supplemented with HSA and in U87 MG cancer cells. Finally, the biodistribution of [Ru(Phen)3]2+ in the presence of serum proteins in the blood stream of chick embryo's chorioallantoic membrane (CAM) was investigated. Fast [Ru(Phen)3]2+ and similar extravasations were observed in the presence or absence of CAM-serum. We can conclude that HSA-[Ru(Phen)3]2+ complex interaction does not significantly influence the potential of [Ru(Phen)3]2+ to be a suitable candidate for a reliable oxygen probe in living organisms.
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Affiliation(s)
- Dominik Belej
- Department of Biophysics, Faculty of Science, P.J. Safarik University, Jesenna 5, 041 54 Kosice, Slovakia
| | - Zuzana Jurasekova
- Department of Biophysics, Faculty of Science, P.J. Safarik University, Jesenna 5, 041 54 Kosice, Slovakia; Center for Interdisciplinary Biosciences, Faculty of Science, P.J. Safarik University, Jesenna 5, 041 54 Kosice, Slovakia
| | - Michal Nemergut
- Department of Biophysics, Faculty of Science, P.J. Safarik University, Jesenna 5, 041 54 Kosice, Slovakia
| | - Georges Wagnieres
- Laboratory of Organometallic and Medicinal Chemistry, ISIC, EPFL, Station 6, Lausanne CH-1015, Switzerland
| | - Daniel Jancura
- Department of Biophysics, Faculty of Science, P.J. Safarik University, Jesenna 5, 041 54 Kosice, Slovakia; Center for Interdisciplinary Biosciences, Faculty of Science, P.J. Safarik University, Jesenna 5, 041 54 Kosice, Slovakia
| | - Veronika Huntosova
- Center for Interdisciplinary Biosciences, Faculty of Science, P.J. Safarik University, Jesenna 5, 041 54 Kosice, Slovakia.
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Alberti E, Zampakou M, Donghi D. Covalent and non-covalent binding of metal complexes to RNA. J Inorg Biochem 2016; 163:278-291. [DOI: 10.1016/j.jinorgbio.2016.04.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/12/2016] [Accepted: 04/12/2016] [Indexed: 01/19/2023]
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13
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Ray B, Agarwal S, Kadian H, Gambhir K, Sharma P, Mehrotra R. Deciphering molecular aspects of interaction between anticancer drug mitoxantrone and tRNA. J Biomol Struct Dyn 2016; 35:2090-2102. [DOI: 10.1080/07391102.2016.1213185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Bhumika Ray
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Shweta Agarwal
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Heena Kadian
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Kaweri Gambhir
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Parag Sharma
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Ranjana Mehrotra
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
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Bhattacharjee P, Sarkar S, Pandya P, Bhadra K. Targeting different RNA motifs by beta carboline alkaloid, harmalol: a comparative photophysical, calorimetric, and molecular docking approach. J Biomol Struct Dyn 2016; 34:2722-2740. [DOI: 10.1080/07391102.2015.1126694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Sánchez O, González S, Higuera-Padilla ÁR, León Y, Coll D, Fernández M, Taylor P, Urdanibia I, Rangel HR, Ortega JT, Castro W, Goite MC. Remarkable in vitro anti-HIV activity of new silver(I)– and gold(I)–N-heterocyclic carbene complexes. Synthesis, DNA binding and biological evaluation. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.02.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ambika S, Manojkumar Y, Senthilkumar R, Sathiyaraj M, Arunachalam S. Nucleic Acid Binding and Invitro Cytotoxicity Studies of Polymer Grafted Intercalating Copper(II) Complex. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-016-0356-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Yousuf I, Arjmand F, Tabassum S, Toupet L, Khan RA, Siddiqui MA. Mechanistic insights into a novel chromone-appended Cu(II) anticancer drug entity: in vitro binding profile with DNA/RNA substrates and cytotoxic activity against MCF-7 and HepG2 cancer cells. Dalton Trans 2016; 44:10330-42. [PMID: 25970097 DOI: 10.1039/c5dt00770d] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new chromone-appended Cu(ii) drug entity () was designed and synthesized as a potential anticancer chemotherapeutic agent. The structural elucidation was carried out thoroughly by elemental analysis, FT-IR, EPR, ESI-MS and single crystal X-ray crystallography. Complex resulted from the in situ methoxylation reaction of the 3-formylchromone ligand and its subsequent complexation with the copper nitrate salt in a 2 : 1 ratio, respectively. crystallized in the monoclinic P21/c space group possessing the lattice parameters, a = 8.75 Å, b = 5.07 Å, c = 26.22 Å, α = γ = 90°, β = 96.3° per unit cell. Furthermore, in vitro interaction studies of with ct-DNA and tRNA were carried out which suggested more avid binding propensity towards the RNA target via intercalative mode, which was reflected from its Kb, K and Ksv values. The gel electrophoretic mobility assay was carried out on the pBR322 plasmid DNA substrate, to ascertain the cleaving ability and the mechanistic pathway in the presence of additives, and the results revealed the efficient cleaving ability of via the oxidative pathway. In vitro cell growth inhibition via the MTT assay was carried out to evaluate the cytotoxicity of complex and IC50 values were found to be in the range of 5-10 μg mL(-1) in HepG2 and MCF-7 cancer cell lines, which were found to be much lower than the IC50 values of previously reported similar Cu(ii) complexes. Additionally, in the presence of , reactive oxygen species (ROS) and thiobarbituric acid reactive substance (TBARS) levels in the tested cancer cell lines increased significantly, coupled with reduced glutathione (GSH) levels. Thus, our results suggested that ROS plays an important role in cell apoptosis induced by the Cu(ii) complex and validates its potential to act as a robust anticancer drug entity.
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Affiliation(s)
- Imtiyaz Yousuf
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
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18
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Sharma S, Toupet L, Ahmad M, Arjmand F. Synthesis, characterization, and crystal structure of RNA targeted l- and d-phenylalanine-(1,10-phen)–copper(ii) conjugate complexes: comparative in vitro RNA binding profile of enantiomers and their biological evaluation by morphological studies and antibacterial activity. RSC Adv 2016. [DOI: 10.1039/c6ra14503e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chiral Cu(ii) complexes targeting RNA showing morphological changes and Docking model.
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Affiliation(s)
- Surbhi Sharma
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Loic Toupet
- Institut de Physique de Rennes
- UMR 625
- Université de Rennes 1
- 35042 Rennes Cedex
- France
| | - Musheer Ahmad
- Department of Applied Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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Kumar GS, Basu A. The use of calorimetry in the biophysical characterization of small molecule alkaloids binding to RNA structures. Biochim Biophys Acta Gen Subj 2015; 1860:930-944. [PMID: 26522497 DOI: 10.1016/j.bbagen.2015.10.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/06/2015] [Accepted: 10/27/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND RNA has now emerged as a potential target for therapeutic intervention. RNA targeted drug design requires detailed thermodynamic characterization that provides new insights into the interactions and this together with structural data, may be used in rational drug design. The use of calorimetry to characterize small molecule-RNA interactions has emerged as a reliable and sensitive tool after the recent advancements in biocalorimetry. SCOPE OF THE REVIEW This review summarizes the recent advancements in thermodynamic characterization of small molecules, particularly some natural alkaloids binding to various RNA structures. Thermodynamic characterization provides information that can supplement structural data leading to more effective drug development protocols. MAJOR CONCLUSIONS This review provides a concise report on the use of isothermal titration calorimetry (ITC) and differential scanning calorimetry (DSC) techniques in characterizing small molecules, mostly alkaloids-RNA interactions with particular reference to binding of tRNA, single stranded RNA, double stranded RNA, poly(A), triplex RNA. GENERAL SIGNIFICANCE It is now apparent that a combination of structural and thermodynamic data is essential for rational design of specific RNA targeted drugs. Recent advancements in biocalorimetry instrumentation have led to detailed understanding of the thermodynamics of small molecules binding to various RNA structures paving the path for the development of many new natural and synthetic molecules as specific binders to various RNA structures. RNA targeted drug design, that remained unexplored, will immensely benefit from the calorimetric studies leading to the development of effective drugs for many diseases.
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Affiliation(s)
- Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700 032, India.
| | - Anirban Basu
- Biophysical Chemistry Laboratory, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700 032, India
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Sanchez O, González S, Fernández M, Higuera-Padilla AR, Leon Y, Coll D, Vidal A, Taylor P, Urdanibia I, Goite MC, Castro W. Novel silver(I)– and gold(I)–N-heterocyclic carbene complexes. Synthesis, characterization and evaluation of biological activity against tumor cells. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.08.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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21
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Arjmand F, Yousuf I, Zaidi Y, Toupet L. Crystal structure determination, spectroscopic characterization and biological profile of a tailored ionic molecular entity, Sn(iv) iminodiacetic acid–piperazinediium conjugate: in vitro DNA/RNA binding studies, Topo I inhibition activity, cytotoxic and systemic toxicity studies. RSC Adv 2015. [DOI: 10.1039/c4ra13718c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In vitro DNA/RNA binding studies and cytotoxic activity of complex 1 along with its in vivo systemic toxicity assay.
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Affiliation(s)
- Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Imtiyaz Yousuf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Yusra Zaidi
- Department of Zoology
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Loic Toupet
- Institut de Physique de Rennes
- UMR 625
- Université de Rennes 1
- 35042 Rennes, Cedex
- France
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22
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Pages BJ, Ang DL, Wright EP, Aldrich-Wright JR. Metal complex interactions with DNA. Dalton Trans 2015; 44:3505-26. [DOI: 10.1039/c4dt02700k] [Citation(s) in RCA: 241] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Increasing numbers of DNA structures are being revealed using a diverse range of transition metal complexes and biophysical spectroscopic techniques. Here we present a review of metal complex-DNA interactions in which several binding modes and DNA structural forms are explored.
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Affiliation(s)
- Benjamin J. Pages
- Nanoscale Organisation and Dynamics Group
- School of Science and Health
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
| | - Dale L. Ang
- Nanoscale Organisation and Dynamics Group
- School of Science and Health
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
| | - Elisé P. Wright
- School of Medicine
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
| | - Janice R. Aldrich-Wright
- Nanoscale Organisation and Dynamics Group
- School of Science and Health
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
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Arjmand F, Yousuf I, Afzal M, Toupet L. Design and synthesis of new Zn(II) nalidixic acid–DACH based Topo-II inhibiting molecular entity: Chemotherapeutic potential validated by its in vitro binding profile, pBR322 cleavage activity and molecular docking studies with DNA and RNA molecular targets. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Zou T, Liu J, Lum CT, Ma C, Chan RCT, Lok CN, Kwok WM, Che CM. Luminescent Cyclometalated Platinum(II) Complex Forms Emissive Intercalating Adducts with Double-Stranded DNA and RNA: Differential Emissions and Anticancer Activities. Angew Chem Int Ed Engl 2014; 53:10119-23. [DOI: 10.1002/anie.201405384] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Indexed: 12/21/2022]
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25
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Zou T, Liu J, Lum CT, Ma C, Chan RCT, Lok CN, Kwok WM, Che CM. Luminescent Cyclometalated Platinum(II) Complex Forms Emissive Intercalating Adducts with Double-Stranded DNA and RNA: Differential Emissions and Anticancer Activities. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405384] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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26
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Synthesis, crystal structure and antiproliferative activity of Cu(II) nalidixic acid–DACH conjugate: Comparative in vitro DNA/RNA binding profile, cleavage activity and molecular docking studies. Eur J Med Chem 2014; 81:76-88. [DOI: 10.1016/j.ejmech.2014.04.080] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 04/27/2014] [Accepted: 04/29/2014] [Indexed: 11/19/2022]
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27
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Netalkar PP, Netalkar SP, Budagumpi S, Revankar VK. Synthesis, crystal structures and characterization of late first row transition metal complexes derived from benzothiazole core: Anti-tuberculosis activity and special emphasis on DNA binding and cleavage property. Eur J Med Chem 2014; 79:47-56. [DOI: 10.1016/j.ejmech.2014.03.083] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 03/22/2014] [Accepted: 03/29/2014] [Indexed: 01/10/2023]
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Ching HYV, Clarke RJ, Rendina LM. Supramolecular β-Cyclodextrin Adducts of Boron-Rich DNA Metallointercalators Containing Dicarba-closo-dodecaborane(12). Inorg Chem 2013; 52:10356-67. [DOI: 10.1021/ic401060k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Ronald J. Clarke
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Louis M. Rendina
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
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Wang G, Wu H, Wang D, Yan C, Lu Y. Exploring the binding mechanism of phosphoramidate derivative with DNA: spectroscopy, calorimetry and modeling. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 104:492-496. [PMID: 23280448 DOI: 10.1016/j.saa.2012.11.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 11/11/2012] [Accepted: 11/16/2012] [Indexed: 06/01/2023]
Abstract
In this study, one of the amino phosphine ester derivatives α-(3-hydroxy-4-methoxyphenyl)-N-phenyl-α-aminophosphonate (HMPAP) was synthesized, and the molecular interaction of HMPAP with ct-DNA has been investigated by UV-Vis absorption spectra, fluorescence spectra, isothermal titration calorimetry (ITC) and molecular modeling. The binding constant (K(b)) of HMPAP to ct-DNA at different temperatures were calculated from fluorescence spectra. According to the UV-Vis absorption spectra, ethidium bromide displacement studies and ITC experimental results, we can conclude that HMPAP is an intercalator. The molecular modeling results indicated that HMPAP can slide into the G-C rich region of ct-DNA. ITC data showed that ct-DNA/HMPAP binding is enthalpy controlled. Furthermore, the results obtained from molecular modeling corroborated the experimental results obtanied from spectroscopic and ITC investigations.
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Affiliation(s)
- Gongke Wang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
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30
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DNA-binding and cytotoxicity studies of ruthenium(II) mixed-ligand complexes containing two intercalative ligands. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.01.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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31
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Li LY, Jia HN, Yu HJ, Du KJ, Lin QT, Qiu KQ, Chao H, Ji LN. Synthesis, characterization, and DNA-binding studies of ruthenium complexes [Ru(tpy)(ptn)]2+ and Ru(dmtpy)(ptn)]2+. J Inorg Biochem 2012; 113:31-9. [PMID: 22687492 DOI: 10.1016/j.jinorgbio.2012.03.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 03/15/2012] [Accepted: 03/21/2012] [Indexed: 11/24/2022]
Abstract
Two ruthenium(II) polypyridyl complexes [Ru(tpy)(ptn)](2+) (1) and Ru(dmtpy)(ptn)](2+) (2) (ptn=3-(1,10-phenanthrolin-2-yl)-as-triazino[5,6-f]naphthalene, tpy=2,2':6',2"-terpyridine, dmtpy=5,5'-dimethyl-2,2':6',2"-terpyridine) have been synthesized and characterized by elemental analysis, (1)H NMR, mass spectrometry and crystal structure analysis. Spectroscopic studies together with isothermal titration calorimetry (ITC) and viscosity measurements prove that two complexes bind to DNA in an intercalative mode. ITC experiments show that the binding mode for complex 2 is entropically driven, while an entropy-driven initial binding of complex 1 is followed by an entropically and enthalpically favorable process. This difference may be attributed to the ancillary ligand effects on the DNA binding of Ru(II) complexes. Circular dichroism titrations of calf thymus DNA (CT-DNA) with Ru(II) complexes show that complexes 1 and 2 induce B to Z conformational transition of calf thymus DNA at low ionic strength (0.05 M NaCl). The induced Z-DNA conformation can revert to B form when Ru(II) complexes are displaced by ethidium bromide or at high ionic strengths ([NaCl]=0.4 M), but keeps intact with temperature ranged from 25 to 90 °C. The unique structure and characteristics of Ru(II) complexes designed in this investigation will be useful for the study of Z-DNA.
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Affiliation(s)
- Lü-Ying Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China
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32
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Lula I, De Sousa FB, Denadai ÂM, de Lima GF, Duarte HA, dos Mares Guia TR, Faljoni-Alario A, Santoro MM, de Camargo AC, dos Santos RA, Sinisterra RD. Interaction between bradykinin potentiating nonapeptide (BPP9a) and β-cyclodextrin: A structural and thermodynamic study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.10.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Bhattacharyya MK, Devi PG, Dasgupta D, Bora SJ, Das BK. Solid and solution structures and DNA binding properties of [MII(4-CNpy)2(SO4)(H2O)3]·H2O for M=Cu, Co, Ni. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.12.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Pathan AH, Bakale RP, Naik GN, Frampton CS, Gudasi KB. Synthesis, crystal structure, redox behavior and comprehensive studies on DNA binding and cleavage properties of transition metal complexes of a fluoro substituted thiosemicarbazone derived from ethyl pyruvate. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.12.033] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Liu J, Tan LF, Jin LH, Luan F. Synthesis, Characterization, Nucleic Acid Binding, and Cytotoxic Activity of a Ru(II) Polypyridyl Complex. DNA Cell Biol 2012; 31:250-8. [DOI: 10.1089/dna.2011.1307] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Jin Liu
- Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan, P.R. China
| | - Li-Feng Tan
- Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan, P.R. China
- College of Chemistry, Xiangtan University, Xiangtan, P.R. China
| | - Lian-He Jin
- College of Chemistry, Xiangtan University, Xiangtan, P.R. China
| | - Fang Luan
- College of Chemistry, Xiangtan University, Xiangtan, P.R. China
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36
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Chen H, Li X, Wu Y, Gao W, Bai R. A ruthenium(ii) complex with environment-responsive dual emission and its application in the detection of cysteine/homocysteine. Dalton Trans 2012; 41:13292-7. [DOI: 10.1039/c2dt31180a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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37
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Patel MN, Gandhi DS, Parmar PA. Effect of substituent of terpyridines on the DNA-interaction of polypyridyl ruthenium(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 84:243-248. [PMID: 21996589 DOI: 10.1016/j.saa.2011.09.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 09/10/2011] [Accepted: 09/14/2011] [Indexed: 05/31/2023]
Abstract
An octahedral complexes of ruthenium with 2,9-dimethyl-1,10-phenanthroline (dmphen) and substituted terpyridine have been synthesized. The Ru(II) complexes have been characterized by elemental analyses, thermogravimetric analyses, magnetic moment measurements, FT-IR, electronic, (1)H NMR and FAB mass spectra. The binding strength and mode of interaction of the complexes with Herring Sperm DNA has been investigated using absorption titration and viscosity measurement studies. Results suggest that the substituent on terpyridine ligand affects the binding mode and binding ability of the complexes. Effect of time and ionic strength on DNA cleavage ability of complex has also been studied by gel electrophoresis. Results suggest that more than 200 mM concentration of NaCl decreases the cleavage ability of complex.
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Affiliation(s)
- Mohan N Patel
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India.
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38
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Denadai ÂM, de Oliveira AM, Daniel IM, Carneiro LA, Ribeiro KC, Beraldo HDO, da Costa KJ, da Cunha VC, Cortés ME, Sinisterra RD. Chlorhexidine/losartan ionic pair binding and its nanoprecipitation: physico-chemical characterisation and antimicrobial activity. Supramol Chem 2011. [DOI: 10.1080/10610278.2011.642101] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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39
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DNA- and RNA-binding and enhanced DNA-photocleavage properties of a ferrocenyl-containing ruthenium(II) complex. J Inorg Biochem 2011; 107:104-10. [PMID: 22178672 DOI: 10.1016/j.jinorgbio.2011.10.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 09/12/2011] [Accepted: 10/17/2011] [Indexed: 11/24/2022]
Abstract
The interaction of [Ru(bpy)(2)(fip)](PF(6))(2) {bpy=2,2'-bipyridine, fip=2-ferrocenyl-1H-imidazo[4,5-f][1,10]-phenanthroline} with calf thymus DNA and yeast tRNA was investigated comparatively by UV-visible absorption and luminescence spectrophotometric titrations, steady-state emission quenching by [Fe(CN)(6)](4-), ethidium bromide competition experiment, DNA thermal denaturation, viscosity measurements and salt effect studies. The results suggest that the complex binds to the DNA more strongly than to the RNA. The density functional theory calculations were also carried out in order to better understand the nucleic acid binding properties. Agarose gel electrophoresis showed that the complex exhibited enhanced DNA-photocleavage capacity on pUC 18 plasmid DNA under irradiation at 360 nm as compared with a ferrocenyl-free analogous complex.
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40
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Patel MN, Dosi PA, Bhatt BS. Antibacterial and Superoxide Dismutase Activity as Well as DNA Interactions of Ciprofloxacin-Based Ternary Copper(II) Phenanthroline Complexes. Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201100007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Liu ZC, Yang ZY, Li TR, Wang BD, Li Y, Wang MF. DNA-binding, antioxidant activity and solid-state fluorescence studies of copper(II), zinc(II) and nickel(II) complexes with a Schiff base derived from 2-oxo-quinoline-3-carbaldehyde. TRANSIT METAL CHEM 2011. [DOI: 10.1007/s11243-011-9494-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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Pisani MJ, Fromm PD, Mulyana Y, Clarke RJ, Körner H, Heimann K, Collins JG, Keene FR. Mechanism of cytotoxicity and cellular uptake of lipophilic inert dinuclear polypyridylruthenium(II) complexes. ChemMedChem 2011; 6:848-58. [PMID: 21472992 DOI: 10.1002/cmdc.201100053] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Indexed: 01/08/2023]
Abstract
The accumulation, uptake mechanism, cytotoxicity, cellular localisation of-and mode of cell death induced by-dinuclear ruthenium(II) complexes ΔΔ/ΛΛ-[{Ru(phen)(2) }(2) {μ-bb(n) }](4+) (Rubb(n)), where phen is 1,10-phenanthroline, bb(n) is bis[4(4'-methyl-2,2'-bipyridyl)]-1,n-alkane (n=2, 5, 7, 10, 12 or 16), and the corresponding mononuclear complexes containing the bb(n) ligands, were studied in L1210 murine leukaemia cells. Cytotoxicity increased with linker chain length, and the ΔΔ-Rubb(16) complex displayed the highest cytotoxicity of the series, with an IC(50) value of 5 μM, similar to that of carboplatin in the L1210 murine leukaemia cell line. Confocal microscopy and flow cytometry studies indicated that the complexes accumulate in the mitochondria of L1210 cells, with the magnitude of cellular uptake and accumulation increasing with linking chain length in the bb(n) bridge of the metal complex. ΔΔ-Rubb(16) entered the L1210 cells by passive diffusion (with a minor contribution from protein-mediated active transport), inducing cell death via apoptosis. Additionally, metal-complex uptake in leukaemia cells was approximately 16-times that observed in healthy B cells highlighting that the bb(n) series of complexes may have potential as selective anticancer drugs.
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Affiliation(s)
- Michelle J Pisani
- School of Physical, Environmental and Mathematical Sciences, University of New South Wales, Australian Defence Force Academy, Canberra, ACT, Australia
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43
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Tan LF, Song FC, Zou XQ, Ling XL. Nucleic acid binding behaviors and cytotoxic properties of a Ru(II) complex. DNA Cell Biol 2011; 30:277-85. [PMID: 21323576 DOI: 10.1089/dna.2010.1137] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The interactions of complex [Ru(bpy)(2)(hnip)](2+) (1) {bpy = 2,2'-bipyridine, hnip = 2-(2-hydroxy-1-naphthyl)imidazo[4,5-f][1,10]phenanthroline} with calf thymus DNA and yeast tRNA were investigated by UV-vis spectroscopy, fluorescence spectroscopy, viscosity, equilibrium dialysis, and circular dichroism. In addition, the antitumor activities of complex 1 were evaluated with MTT method. These results indicate that the structures of DNA and RNA have significant effects on the binding behaviors of complex 1. Further, complex 1 demonstrates different antitumor activities against selected cancer cell lines in vitro.
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Affiliation(s)
- Li-Feng Tan
- Key Laboratory of Environment-Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan, PR China.
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Svensson FR, Abrahamsson M, Strömberg N, Ewing AG, Lincoln P. Ruthenium(II) Complex Enantiomers as Cellular Probes for Diastereomeric Interactions in Confocal and Fluorescence Lifetime Imaging Microscopy. J Phys Chem Lett 2011; 2:397-401. [PMID: 21461029 PMCID: PMC3065721 DOI: 10.1021/jz101580e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Ruthenium dipyridophenazine (dppz) complexes are sensitive luminescent probes for hydrophobic environments. Here, we apply multiple-frequency fluorescence lifetime imaging microscopy (FLIM) to Δ and Λ enantiomers of lipophilic ruthenium dppz complexes in live and fixed cells, and their different lifetime staining patterns are related to conventional intensity-based microscopy. Excited state lifetimes of the enantiomers determined from FLIM measurements correspond well with spectroscopically measured emission decay curves in pure microenvironments of DNA, phospholipid membrane or a model protein. We show that FLIM can be applied to monitor the long-lived excited states of ruthenium complex enantiomers and, combined with confocal microscopy, give new insight into their biomolecular binding and reveal differences in the microenvironment probed by the complexes.
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Affiliation(s)
- Frida R. Svensson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296 Gothenburg, Sweden
| | - Maria Abrahamsson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296 Gothenburg, Sweden
| | - Niklas Strömberg
- Chemistry and Materials Technology, SP Technical Research Institute of Sweden, SE-501 15 Borås, Sweden
| | - Andrew G. Ewing
- Department of Chemistry, Analytical Chemistry, Gothenburg University, Kemivägen 4, SE-41296 Gothenburg, Sweden
| | - Per Lincoln
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296 Gothenburg, Sweden
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Matson M, Svensson FR, Nordén B, Lincoln P. Correlation Between Cellular Localization and Binding Preference to RNA, DNA, and Phospholipid Membrane for Luminescent Ruthenium(II) Complexes. J Phys Chem B 2011; 115:1706-11. [DOI: 10.1021/jp109530f] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Maria Matson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
| | - Frida R. Svensson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
| | - Bengt Nordén
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
| | - Per Lincoln
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
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Hosseini SS, Bhadbhade M, Clarke RJ, Rutledge PJ, Rendina LM. Synthesis, carbohydrate- and DNA-binding studies of cationic 2,2′:6′,2′′-terpyridineplatinum(ii) complexes containing N- and S-donor boronic acid ligands. Dalton Trans 2011; 40:506-13. [DOI: 10.1039/c0dt00892c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Rajalakshmi S, Weyhermüller T, Freddy AJ, Vasanthi HR, Nair BU. Anomalous behavior of pentacoordinate copper complexes of dimethylphenanthroline and derivatives of terpyridine ligands: Studies on DNA binding, cleavage and apoptotic activity. Eur J Med Chem 2010; 46:608-17. [PMID: 21193251 DOI: 10.1016/j.ejmech.2010.11.041] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Revised: 11/24/2010] [Accepted: 11/28/2010] [Indexed: 10/18/2022]
Abstract
Copper(II) complexes with substituted terpyridine ligands, namely [Cu(itpy)(dmp)](NO3)2 (1) and [Cu(ptpy)(dmp)](NO3)2 (2) have been synthesized and characterized. The interaction of the complexes with CT-DNA has been explored using spectroscopic techniques and viscosity. Complexes 1 and 2 bind in the grooves of DNA, interestingly 1 in the minor and 2 in the major groove. Both the complexes have been found to promote DNA cleavage; complex 1 through hydrolytic and 2 oxidative. Complexes 1 and 2 have been found to be cytotoxic and bring about apoptosis of human lung cancer cell line A549.
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Affiliation(s)
- Subramaniyam Rajalakshmi
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India
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Liang X, Zou X, Tan L, Zhu W. Study on nucleic acid (CT-DNA and yeast tRNA) binding behaviors and cytotoxic properties of a heterodinuclear Ru(II)-Co(III) polypyridyl complex. J Inorg Biochem 2010; 104:1259-66. [PMID: 20837360 PMCID: PMC7126775 DOI: 10.1016/j.jinorgbio.2010.08.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2010] [Revised: 08/04/2010] [Accepted: 08/09/2010] [Indexed: 11/13/2022]
Abstract
A heterodinuclear (Ru(II), Co(III)) metal polypyridyl complex [(phen)(2)Ru(bpibH(2))Co(phen)(2)](5+) {phen = 1,10-phenanthroline, bpibH(2) = 1,4-bis([1,10]phebanthroline-[5,6-d]imidazol-2-yl)-benzene} has been designed and synthesized. The comparative study on the interactions of the Ru(II)-Co(III) complex with calf thymus DNA (CT-DNA) and yeast tRNA has been investigated by UV-visible spectroscopy, fluorescence spectroscopy, viscosity, as well as equilibrium dialysis and circular dichroism (CD). The antitumor activities of the complex have been evaluated by MTT {3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide} method and Giemsa staining experiment. These results indicate that the structures of nucleic acids have significant effects on the binding behaviors of metal complexes. Furthermore, the complex demonstrates different antitumor activity against selected tumor cell lines in vitro, and can make the cell apoptosis.
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Affiliation(s)
- Xiling Liang
- College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Xiaoqing Zou
- College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Lifeng Tan
- College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan 411105, PR China
| | - Weiguo Zhu
- College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan 411105, PR China
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Liu ZC, Wang BD, Li B, Wang Q, Yang ZY, Li TR, Li Y. Crystal structures, DNA-binding and cytotoxic activities studies of Cu(II) complexes with 2-oxo-quinoline-3-carbaldehyde Schiff-bases. Eur J Med Chem 2010; 45:5353-61. [DOI: 10.1016/j.ejmech.2010.08.060] [Citation(s) in RCA: 159] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Revised: 08/26/2010] [Accepted: 08/26/2010] [Indexed: 10/19/2022]
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50
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Luo H, Xiao J, Chen J, Xu H, Lu J, Liu Z, Chen S, Tong M, Zheng K, Ji L. Effect of Electronic Structures of Enantiomers of Ruthenium(II) Polypyridyl Complexes on DNA Binding Behaviors. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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