51
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Niu M, Hong M, Chang G, Li X, Li Z. A comparative study of cytotoxicity and interaction with DNA/protein of five transition metal complexes with Schiff base ligands. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 148:232-241. [PMID: 25974907 DOI: 10.1016/j.jphotobiol.2015.04.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 04/20/2015] [Accepted: 04/20/2015] [Indexed: 12/21/2022]
Abstract
Five transition metal complexes NiL(1)2 (1), CuL(1)2 (2), ZnL(1)2 (3), [MnL(1)2(N3)]n·nCH2Cl2 (4), CuL(2)2 (5) {HL(1)=3-{[2-(2-hydroxy-ethoxy)-ethylimino]-methyl}-naphthalen-2-ol, HL(2)=2-{[2-(2-hydroxy-ethoxy)-ethylimino]-methyl}-phenol} have been synthesized and fully characterized. In all of the complexes, the ligands coordinated to the metal ion in a negative fashion via O and N donor atoms. The X-ray structures of nickel complex 1 and copper complexes 2 and 5 are four-coordinated monomers and show slightly distorted square-planar geometry in the vicinity of the central metal atom. Zinc complex 3 exhibits a four-coordinated tetrahedral structure. Differently, manganese complex 4 reveals a six-coordinated octahedral structure, one-dimensional chain is linked by azide in the end-to-end mode. In vitro cytotoxicity of these complexes to various tumor cell lines was assayed by the MTT method. The results showed that most of these metal-Schiff base complexes exhibited enhanced cytotoxicity than Schiff base ligands, which clearly implied a positive synergistic effect. Moreover, these complexes appeared to be selectively active against certain cell lines. The interactions of these metal complexes with CT-DNA were investigated by UV-vis, fluorescence and CD spectroscopy, the results indicated that these complexes are metallointercalators and can interact with CT-DNA. The study of interaction between complexes and BSA indicated that all of the complexes could quench the intrinsic fluorescence of BSA in a static quenching process.
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Affiliation(s)
- Meiju Niu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Min Hong
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China.
| | - Guoliang Chang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Xiao Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Zhen Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
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52
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Tripathy SK, Taviti AC, Dehury N, Sahoo A, Pal S, Beuria TK, Patra S. Synthesis, characterisation and antibacterial activity of [(p-cym)RuX(L)]+/2+ (X = Cl, H2O; L = bpmo, bpms) complexes. Dalton Trans 2015; 44:5114-24. [DOI: 10.1039/c4dt03647f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simple replacement of Cl− by H2O in {(p-cym)RuII(L)X]n+ (X = Cl or H2O) complexes enhances antibacterial activity significantly.
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Affiliation(s)
- Suman Kumar Tripathy
- School of Basic Sciences
- Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
| | | | - Niranjan Dehury
- School of Basic Sciences
- Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
| | - Anupam Sahoo
- School of Basic Sciences
- Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
| | - Satyanaryan Pal
- Department of Chemistry
- Ravenshaw University
- Cuttack-753 003
- India
| | | | - Srikanta Patra
- School of Basic Sciences
- Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
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53
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Busto N, Martínez-Alonso M, Leal JM, Rodríguez AM, Domínguez F, Acuña MI, Espino G, García B. Monomer–Dimer Divergent Behavior toward DNA in a Half-Sandwich Ruthenium(II) Aqua Complex. Antiproliferative Biphasic Activity. Organometallics 2014. [DOI: 10.1021/om5011275] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Natalia Busto
- Departamento
de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Marta Martínez-Alonso
- Departamento
de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - José M. Leal
- Departamento
de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Ana M. Rodríguez
- Departamento
de Química Inorgánica, Orgánica y Bioquímica,
Facultad de Químicas, Universidad de Castilla-La Mancha, Avenida Camilo J. Cela 10, 13071, Ciudad Real, Spain
| | - Fernando Domínguez
- CIMUS, Universidad de Santiago de Compostela, Avenida Barcelona s/n, 15782, Santiago de Compostela, Spain
| | - M Isabel Acuña
- CIMUS, Universidad de Santiago de Compostela, Avenida Barcelona s/n, 15782, Santiago de Compostela, Spain
| | - Gustavo Espino
- Departamento
de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Begoña García
- Departamento
de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
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54
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Li W, Han BJ, Wang J, Jiang GB, Xie YY, Lin GJ, Huang HL, Liu YJ. Synthesis, characterization and cytotoxic activity studies of two ruthenium(II) complexes. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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55
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Martínez-Alonso M, Busto N, Jalón FA, Manzano BR, Leal JM, Rodríguez AM, García B, Espino G. Derivation of structure-activity relationships from the anticancer properties of ruthenium(II) arene complexes with 2-aryldiazole ligands. Inorg Chem 2014; 53:11274-88. [PMID: 25302401 DOI: 10.1021/ic501865h] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The ligands 2-pyridin-2-yl-1H-benzimidazole (HL(1)), 1-methyl-2-pyridin-2-ylbenzimidazole (HL(2)), and 2-(1H-imidazol-2-yl)pyridine (HL(3)) and the proligand 2-phenyl-1H-benzimidazole (HL(4)) have been used to prepare five different types of new ruthenium(II) arene compounds: (i) monocationic complexes with the general formula [(η(6)-arene)RuCl(κ(2)-N,N-HL)]Y [HL = HL(1), HL(2), or HL(3); Y = Cl or BF4; arene = 2-phenoxyethanol (phoxet), benzene (bz), or p-cymene (p-cym)]; (ii) dicationic aqua complexes of the formula [(η(6)-arene)Ru(OH2)(κ(2)-N,N-HL(1))](Y)2 (Y = Cl or TfO; arene = phoxet, bz, or p-cym); (iii) the nucleobase derivative [(η(6)-arene)Ru(9-MeG)(κ(2)-N,N-HL(1))](PF6)2 (9-MeG = 9-methylguanine); (iv) neutral complexes consistent with the formulation [(η(6)-arene)RuCl(κ(2)-N,N-L(1))] (arene = bz or p-cym); (v) the neutral cyclometalated complex [(η(6)-p-cym)RuCl(κ(2)-N,C-L(4))]. The cytototoxic activity of the new ruthenium(II) arene compounds has been evaluated in several cell lines (MCR-5, MCF-7, A2780, and A2780cis) in order to establish structure-activity relationships. Three of the compounds with the general formula [(η(6)-arene)RuCl(κ(2)-N,N-HL(1))]Cl differing in the arene moiety have been studied in depth in terms of thermodynamic dissociation constants, aquation kinetic constants, and DNA binding measurements. The biologically most active compound is the p-cym derivative, which strongly destabilizes the DNA double helix, whereas those with bz and phoxet have only a small effect on the stability of the DNA double helix. Moreover, the inhibitory activity of several compounds toward CDK1 has also been evaluated. The DNA binding ability of some of the studied compounds and their CDK1 inhibitory effect suggest a multitarget mechanism for their biological activity.
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Affiliation(s)
- Marta Martínez-Alonso
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos , Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
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Hong M, Geng H, Niu M, Wang F, Li D, Liu J, Yin H. Organotin(IV) complexes derived from Schiff base N'-[(1E)-(2-hydroxy-3-methoxyphenyl)methylidene]pyridine-4-carbohydrazone: synthesis, in vitro cytotoxicities and DNA/BSA interaction. Eur J Med Chem 2014; 86:550-61. [PMID: 25216377 DOI: 10.1016/j.ejmech.2014.08.070] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 08/27/2014] [Accepted: 08/27/2014] [Indexed: 11/16/2022]
Abstract
Five organotin(IV) compounds were synthesized from N'-[(1E)-(2-hydroxy-3-methoxyphenyl)methylidene]pyridine-4-carbohydrazone and the corresponding dialkyltin(IV) or trialkyltin(IV) precursor. Solid state structures were determined by IR, elemental analysis, NMR spectroscopy, and for 1, 2, 4 and 5 single crystal X-ray diffraction analysis. Compounds 1, 2 and 4 are monomers with the tin atoms five-coordinated in distorted trigonal bipyramid, of which the deprotonated Schiff base ligand chelate to tin center in the enolic tridentate mode. Differently, in compound 5, the enolization does not occur for the Schiff base ligand, and only the pyridinyl N atom and the deprotonated phenol hydroxyl oxygen atom participate in the coordination. Fascinatingly, six trimethyltin(IV) coordination units are linked by the Sn⋯N weak interaction atoms and form a 72-membered crown-like macrocycle. Preliminary in vitro cytotoxicity studies on five human tumor cells lines (HL-60, A549, HT-29, HCT-116 and Caco-2) by MTT assay reveal that di-n-butyltin(IV) complex 2 and diphenyltin(IV) complex 4 triggered significant antiproliferative effects in cultured tumor cells, and their cytotoxic activity correlates with intracellular organotin(IV) concentration. The interaction of the complexes with calf thymus DNA (CT-DNA) has been explored by absorption and emission titration methods, which revealed that complexes 2 and 4 interact with CT-DNA through groove-binding and partial intercalation of the extended planar ligand with the DNA base stack. Further, the albumin interactions of complexes 2 and 4 were investigated using fluorescence quenching spectra and synchronous fluorescence spectra. Studies reveal that di-n-butyltin(IV) complex 2 with higher cytotoxicity show stronger DNA/BSA interaction than diphenyltin(IV) complex 4.
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Affiliation(s)
- Min Hong
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China.
| | - Honglin Geng
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Meiju Niu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Fei Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Dacheng Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China; Collaborative Innovation Center of Antibody Drugs, Liaocheng University, Liaocheng 252059, China
| | - Jifeng Liu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Handong Yin
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China.
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Chow MJ, Licona C, Yuan Qiang Wong D, Pastorin G, Gaiddon C, Ang WH. Discovery and investigation of anticancer ruthenium-arene Schiff-base complexes via water-promoted combinatorial three-component assembly. J Med Chem 2014; 57:6043-59. [PMID: 25023617 DOI: 10.1021/jm500455p] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The structural diversity of metal scaffolds makes them a viable alternative to traditional organic scaffolds for drug design. Combinatorial chemistry and multicomponent reactions, coupled with high-throughput screening, are useful techniques in drug discovery, but they are rarely used in metal-based drug design. We report the optimization and validation of a new combinatorial, metal-based, three-component assembly reaction for the synthesis of a library of 442 Ru-arene Schiff-base (RAS) complexes. These RAS complexes were synthesized in a one-pot, on-a-plate format using commercially available starting materials under aqueous conditions. The library was screened for their anticancer activity, and several cytotoxic lead compounds were identified. In particular, [(η6-1,3,5-triisopropylbenzene)RuCl(4-methoxy-N-(2-quinolinylmethylene)aniline)]Cl (4) displayed low micromolar IC50 values in ovarian cancers (A2780, A2780cisR), breast cancer (MCF7), and colorectal cancer (HCT116, SW480). The absence of p53 activation or changes in IC50 value between p53+/+ and p53-/- cells suggests that 4 and possibly the other lead compounds may act independently of the p53 tumor suppressor gene frequently mutated in cancer.
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Affiliation(s)
- Mun Juinn Chow
- Department of Chemistry, National University of Singapore , 3 Science Drive 3, 117543 Singapore
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58
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DNA Binding Property and Antitumor Evaluation of Xanthone with Dimethylamine Side Chain. J Fluoresc 2014; 24:959-66. [DOI: 10.1007/s10895-014-1380-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 03/19/2014] [Indexed: 12/27/2022]
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59
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Han BJ, Jiang GB, Wang J, Li W, Huang HL, Liu YJ. The studies on bioactivity in vitro of ruthenium(ii) polypyridyl complexes towards human lung carcinoma A549 cells. RSC Adv 2014. [DOI: 10.1039/c4ra07102f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three complexes were synthesized and characterized. The cytotoxicity, apoptosis, cellular uptake, reactive oxygen species, mitochondrial membrane potential, cell cycle arrest and western blot analysis were investigated.
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Affiliation(s)
- Bing-Jie Han
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou, P.R. China
| | - Guang-Bin Jiang
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou, P.R. China
| | - Ji Wang
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou, P.R. China
| | - Wei Li
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou, P.R. China
| | - Hong-Liang Huang
- School of Life Science and Biopharmaceutical
- Guangdong Pharmaceutical University
- Guangzhou, P.R. China
| | - Yun-Jun Liu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou, P.R. China
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