1
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Pramanik S, Chattopadhyay S. An overview of copper complexes with diamine-based N4 donor bis-pyridine Schiff base ligands: Synthesis, structures, magnetic properties and applications. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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2
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Keshavarzian E, Asadi Z, Poupon M, Dusek M, Rastegari B. A New Heterotrimetallic Sandwich‐like Cu
II
‐La
III
‐Cu
II
(3d‐4f‐3d) Cluster as a Model Anticancer Drug in Interaction with FS‐DNA & BSA and as a New Artificial Catalyst for Catecholase Activity. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Elahe Keshavarzian
- Department of Chemistry, School of Sciences Shiraz University Shiraz Iran
| | - Zahra Asadi
- Department of Chemistry, School of Sciences Shiraz University Shiraz Iran
| | | | | | - Banafsheh Rastegari
- Diagnostic laboratory sciences and technology research center, paramedical School Shiraz University of Medical Sciences Shiraz Iran
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3
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Goudarziafshar H, Yousefi S, Abbasi Tyula Y, Dušek M, Eigner V. Template synthesis, DNA binding, antimicrobial activity, Hirshfeld surface analysis, and 1D helical supramolecular structure of a novel binuclear copper(ii) Schiff base complex. RSC Adv 2022; 12:13580-13592. [PMID: 35530396 PMCID: PMC9069724 DOI: 10.1039/d2ra00719c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/20/2022] [Indexed: 01/27/2023] Open
Abstract
A new binuclear copper(ii) Schiff base complex [Cu2 L2 - (NO3)2]·2CH3OH (1) [L = 2,6-bis((E)-(p-tolylimino)methyl)-4-methoxyphenol] was synthesized using a template method in which the tridentate N2O Schiff base ligand was derived from [1 + 2] condensation of 2,6-diformyl-4-methoxyphenol and p-methyl aniline in the presence of copper(ii) ions as the template agent. The X-ray diffraction analyses revealed that this complex crystallizes in the monoclinic system with space group P21/n. The most remarkable structural feature of 1 is that it contains two types of 1D right-handed helical chains. The molecules are linked by intermolecular hydrogen bonds and π⋯π interactions, then a 3D supramolecular network was constructed. Moreover, the intermolecular interactions on the crystal packing of 1 have been further studied using Hirshfeld surface analysis and corresponding 2D fingerprint plots. Binding interaction of this complex with calf thymus DNA (CT-DNA) has been investigated using absorption and emission studies, viscosity experiments and circular dichroism studies. Complex 1 shows significant binding to the DNA. The results of fluorescence spectroscopy and UV absorption spectroscopy, CD spectroscopy and viscosity indicated that this complex interacted with CT-DNA in a groove binding mode where the binding constant was 1.3 ± 0.2 × 104 L mol-1. Our fluorimeteric study showed that the reaction between 1 and CT-DNA was exothermic (ΔH = 59.6 kJ mol-1; ΔS = 268.79 J mol-1 K-1). Antibacterial activities of the complex were screened by the disc diffusion method against three Gram-positive bacteria (Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 23212 and S. epidermidis ATCC 34384), and three Gram-negative bacteria (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853 and Klebsiella pneumonia ATCC 70063). The results indicated that this complex demonstrated acceptable antibacterial activities.
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Affiliation(s)
- Hamid Goudarziafshar
- Department of Chemical Engineering, Hamedan University of Technology Hamedan Iran
| | - Somaieh Yousefi
- Department of Chemistry, Faculty of Science, Ilam University P.O. Box 69315516 Ilam Iran
| | - Yunes Abbasi Tyula
- Department of Chemistry, Faculty of Science, Ilam University P.O. Box 69315516 Ilam Iran
| | - Michal Dušek
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2, 182 21 Praha 8 Czech Republic
| | - Václav Eigner
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2, 182 21 Praha 8 Czech Republic
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4
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Beebe SJ, Celestine MJ, Bullock JL, Sandhaus S, Arca JF, Cropek DM, Ludvig TA, Foster SR, Clark JS, Beckford FA, Tano CM, Tonsel-White EA, Gurung RK, Stankavich CE, Tse-Dinh YC, Jarrett WL, Holder AA. Synthesis, characterization, DNA binding, topoisomerase inhibition, and apoptosis induction studies of a novel cobalt(III) complex with a thiosemicarbazone ligand. J Inorg Biochem 2020; 203:110907. [PMID: 31715377 PMCID: PMC7053658 DOI: 10.1016/j.jinorgbio.2019.110907] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 10/24/2019] [Accepted: 10/27/2019] [Indexed: 01/09/2023]
Abstract
In this study, 9-anthraldehyde-N(4)-methylthiosemicarbazone (MeATSC) 1 and [Co(phen)2(O2CO)]Cl·6H2O 2 (where phen = 1,10-phenanthroline) were synthesized. [Co(phen)2(O2CO)]Cl·6H2O 2 was used to produce anhydrous [Co(phen)2(H2O)2](NO3)33. Subsequently, anhydrous [Co(phen)2(H2O)2](NO3)33 was reacted with MeATSC 1 to produce [Co(phen)2(MeATSC)](NO3)3·1.5H2O·C2H5OH 4. The ligand, MeATSC 1 and all complexes were characterized by elemental analysis, FT IR, UV-visible, and multinuclear NMR (1H, 13C, and 59Co) spectroscopy, along with HRMS, and conductivity measurements, where appropriate. Interactions of MeATSC 1 and complex 4 with calf thymus DNA (ctDNA) were investigated by carrying out UV-visible spectrophotometric studies. UV-visible spectrophotometric studies revealed weak interactions between ctDNA and the analytes, MeATSC 1 and complex 4 (Kb = 8.1 × 105 and 1.6 × 104 M-1, respectively). Topoisomerase inhibition assays and cleavage studies proved that complex 4 was an efficient catalytic inhibitor of human topoisomerases I and IIα. Based upon the results obtained from the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay on 4T1-luc metastatic mammary breast cancer cells (IC50 = 34.4 ± 5.2 μM when compared to IC50 = 13.75 ± 1.08 μM for the control, cisplatin), further investigations into the molecular events initiated by exposure to complex 4 were investigated. Studies have shown that complex 4 activated both the apoptotic and autophagic signaling pathways in addition to causing dissipation of the mitochondrial membrane potential (ΔΨm). Furthermore, activation of cysteine-aspartic proteases3 (caspase 3) in a time- and concentration-dependent manner coupled with the ΔΨm, studies implicated the intrinsic apoptotic pathway as the major regulator of cell death mechanism.
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Affiliation(s)
- Stephen J Beebe
- The Frank Reidy Center for Bioelectrics, 4211 Monarch Way, Suite 300, Norfolk, VA 23529, USA
| | - Michael J Celestine
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jimmie L Bullock
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Shayna Sandhaus
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - Jessa Faye Arca
- Department of Chemistry and Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, MS 39406, USA
| | - Donald M Cropek
- U.S. Army Corps of Engineers, Construction Engineering Research Laboratory, Champaign, IL 61822, USA
| | - Tekettay A Ludvig
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Sydney R Foster
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jasmine S Clark
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Floyd A Beckford
- The University of Virginia's College at Wise, 1 College Avenue, Wise, VA 24293, USA
| | - Criszcele M Tano
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Elizabeth A Tonsel-White
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Raj K Gurung
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Courtney E Stankavich
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Yuk-Ching Tse-Dinh
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - William L Jarrett
- School of Polymers and High-Performance Materials, The University of Southern Mississippi, 118 College Drive, #5050, Hattiesburg, MS 39406, USA
| | - Alvin A Holder
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA.
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5
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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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6
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Evaluations of AMBER force field parameters by MINA approach for copper-based nucleases. Struct Chem 2016. [DOI: 10.1007/s11224-016-0764-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Synthesis, crystal structures and biological evaluation of three ternary copper(II) complexes with fluorinated anthranilic acid derivatives. TRANSIT METAL CHEM 2016. [DOI: 10.1007/s11243-016-0092-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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8
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Vafazadeh R, Jafari F, Heidari MM, Willis AC. Alkyl chain length effect on construction of copper(II) complexes with tridentate Schiff base ligand and DNA interaction. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1163547] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Fariba Jafari
- Department of Chemistry, Yazd University, Yazd, Iran
| | | | - Anthony C. Willis
- Research School of Chemistry, Australian National University, Australia
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9
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Vafazadeh R, Willis AC. Tetra(μ3-hydroxo) bridged copper(II) tetranuclear cubane complexes: synthesis, crystal structure, and DNA binding studies. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1048688] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Anthony C. Willis
- Research School of Chemistry, Australian National University, Canberra, Australia
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10
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Schiff base ligands derived from 2-pyridinecarboxaldehyde and its complexes: characterization, thermal, electrochemical, and catalytic activity results. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-014-1381-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Mononuclear copper(II) complexes with a tetradentate pyrazole based ligand: Syntheses, structures, DNA binding study and antimicrobial activity. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.06.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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12
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Zhao Y, Gong T, Yu Z, Zhu S, He W, Ni T, Guo Z. Oxidative DNA cleavage promoted by polynuclear copper complexes bearing iminodiacetate chelator. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.01.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Zhang XL, Cheng K. Synthesis, Crystal Structure, and DNA-Binding Property of Ruthenium (IV) Complex With 2,5-dimercapto-1,3,4- thiadiazole and 1,10-phenanthroline. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/15533174.2012.684256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Xiu-Ling Zhang
- a Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong , Dezhou University , Dezhou , P. R. China
| | - Kai Cheng
- b School of Chemistry and Pharmaceutical Engineering , Shandong Polytechnic University , Jinan , P. R. China
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14
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Silavi R, Divsalar A, Saboury AA. A short review on the structure-function relationship of artificial catecholase/tyrosinase and nuclease activities of Cu-complexes. J Biomol Struct Dyn 2012; 30:752-72. [PMID: 22731989 DOI: 10.1080/07391102.2012.689704] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The synthesis of metal complexes has vastly increased the scope of research for many scientists during the two last decades. Among these compounds, artificial tyrosinases, catecholases, proteases, and nucleases are some of the most studied due to their importance as modern tools in the fields of medicine, scientific research, and industry. Transition metals such as Zn(2+), Cu(2+), Fe(3+), Co(3+), Ni(2+), and lanthanide ions are the most commonly used. Among these ions, copper complexes have been the focus of the majority of studies thanks to their significant activity in comparison with other ions. Studies of copper-based tyrosinases, catecholases, and nucleases have revealed some of the overarching factors affecting reactions of all three types, which has led to improved activity and efficiency for all. Key factors include proper core-core distance, (Cu⋯Cu distance 2.90-2.99 Å), suitable solvent, and ligands with proper hydrophobic structure and geometry. In the present investigation, we review and introduce the proposed mechanisms and the kinetically effective factors of natural catecholase, tyrosinase, and nuclease and their Cu-based synthetic mimics.
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Affiliation(s)
- Reza Silavi
- Department of Biological Sciences, Kharazmi (Tarbiat Moallem) University, Tehran, Iran
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15
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Yu RH, Zheng YJ, Li YT, Wu ZY, Yan CW. Syntheses and structures of copper(II) and nickel(II) complexes with N,N′-(4,4′-bithiazole-2,2′-diyl)diacetimidamide ligands: in vitro cytotoxicities and DNA-binding properties. TRANSIT METAL CHEM 2012. [DOI: 10.1007/s11243-012-9603-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Xie Z, Yu Z, Chen Y, Lu G, Guo Z, He W. DNA cleavage behavior of a new p-xylyl spaced bisCu(BPA)Cl2 complex: the steric effect of a bulky p-xylyl-derived spacer. NEW J CHEM 2012. [DOI: 10.1039/c1nj20793h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Pal A, Biswas B, Mondal SK, Lin CH, Ghosh R. Copper(II) complexes with neutral Schiff bases: Syntheses, crystal structures and DNA interactions. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.10.037] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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18
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Krishnamoorthy P, Sathyadevi P, Muthiah PT, Dharmaraj N. Nickel and cobalt complexes of benzoic acid (2-hydroxy-benzylidene)-hydrazide ligand: synthesis, structure and comparative in vitro evaluations of biological perspectives. RSC Adv 2012. [DOI: 10.1039/c2ra20597a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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19
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da Silveira VC, Benezra H, Luz JS, Georg RC, Oliveira CC, Ferreira AMDC. Binding of oxindole-Schiff base copper(II) complexes to DNA and its modulation by the ligand. J Inorg Biochem 2011; 105:1692-703. [PMID: 22099472 DOI: 10.1016/j.jinorgbio.2011.09.016] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Revised: 09/07/2011] [Accepted: 09/08/2011] [Indexed: 11/16/2022]
Abstract
Previous studies on copper(II) complexes with oxindole-Schiff base ligands have shown their potential antitumor activity towards different cells, inducing apoptosis through a preferential attack to DNA and/or mitochondria. Herein, we better characterize the interactions between some of these copper(II) complexes and DNA. Investigations on its binding ability to DNA were carried out by fluorescence measurements in competitive experiments with ethidium bromide, using plasmidial or calf-thymus DNA. These results indicated an efficient binding process similar to that observed with copper(II)-phenanthroline species, [Cu(o-phen)(2)](2+), with binding constants in the range 3 to 9×10(2) M(-1). DNA cleavage experiments in the presence and absence of distamycin, a recognized binder of DNA, indicated that this binding probably occurs at major or minor groove, leading to double-strand DNA cleavage, and being modulated by the imine ligand. Corroborating these data, discrete changes in EPR spectra of the studied complexes were observed in the presence of DNA, while more remarkable changes were observed in the presence of nucleotides (AMP, GMP, CMP or UMP). Additional evidence for preferential coordination of the copper centers to the bases guanine or cytosine was obtained from titrations of these complexes with each nucleotide, monitored by absorption spectral changes. Therefore, the obtained data point out to their action as groove binders to DNA bases, rather than as intercalators or covalent cross-linkers. Further investigations by SDS PAGE using (32)P-ATP or (32)P-oligonucleotides attested that no hydrolysis of phosphate linkage in DNA or RNA occurs, in the presence of such complexes, confirming their main oxidative mechanism of action.
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Affiliation(s)
- Vivian Chagas da Silveira
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
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20
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Wu HL, Kou F, Jia F, Liu B, Yuan JK, Bai Y. Synthesis, characterization, and DNA-binding of a four-coordinate cobalt(II) complex with 1,3-bis(1-ethylbenzimidazol-2-yl)-2-oxopropane. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.611505] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Hui-Lu Wu
- a School of Chemical and Biological Engineering, Lanzhou Jiaotong University , Lanzhou , Gansu 730070 , P.R. China
| | - Fan Kou
- a School of Chemical and Biological Engineering, Lanzhou Jiaotong University , Lanzhou , Gansu 730070 , P.R. China
| | - Fei Jia
- a School of Chemical and Biological Engineering, Lanzhou Jiaotong University , Lanzhou , Gansu 730070 , P.R. China
| | - Bin Liu
- a School of Chemical and Biological Engineering, Lanzhou Jiaotong University , Lanzhou , Gansu 730070 , P.R. China
| | - Jing-Kun Yuan
- a School of Chemical and Biological Engineering, Lanzhou Jiaotong University , Lanzhou , Gansu 730070 , P.R. China
| | - Ying Bai
- a School of Chemical and Biological Engineering, Lanzhou Jiaotong University , Lanzhou , Gansu 730070 , P.R. China
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Manikandamathavan VM, Parameswari RP, Weyhermüller T, Vasanthi HR, Nair BU. Cytotoxic copper (II) mixed ligand complexes: Crystal structure and DNA cleavage activity. Eur J Med Chem 2011; 46:4537-47. [DOI: 10.1016/j.ejmech.2011.07.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Revised: 07/13/2011] [Accepted: 07/18/2011] [Indexed: 11/26/2022]
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22
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Zhang X, Yang Y, Zhao M, Liu L, Zheng M, Wang Y, Wu J, Peng S. A class of Trp-Trp-AA-OBzl: Synthesis, in vitro anti-proliferation/in vivo anti-tumor evaluation, intercalation-mechanism investigation and 3D QSAR analysis. Eur J Med Chem 2011; 46:3410-9. [PMID: 21620529 DOI: 10.1016/j.ejmech.2011.05.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 04/20/2011] [Accepted: 05/02/2011] [Indexed: 10/18/2022]
Abstract
From the anti-tumor active N-tryptophanyl-β-carboline-3-carboxylic acid benzyl ester and β-carboline-3-carbonyltryptophan benzyl ester, a pharmacophore, Trp-Trp-OBzl, was drawn. Based on the DOCK scores amino acid residue was inserted into the C-terminus of Trp-Trp-OBzl and twenty Trp-Trp-AA-OBzls (AA = amino acid residues) were provided as DNA intercalators. On the in vitro and in vivo models seventeen Trp-Trp-AA-OBzls were anti-tumor active, and twelve Trp-Trp-AA-OBzls were more active than cytarabine. In acute toxicity assay Trp-Trp-AA-OBzls did not damage the immunologic function and had an LD(50) of more than 500 mg/kg. The relationships of structure and activity were analyzed with 3D QSAR. The action mechanism studies revealed that the in vivo anti-tumor action of Trp-Trp-AA-OBzls was the result of DNA intercalation.
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Affiliation(s)
- Xiaoyi Zhang
- College of Pharmaceutical Sciences, Capital Medical University, No. 10, Beijing 100069, PR China
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23
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Synthesis, structure and DNA-binding studies of tetranuclear copper(II) complexes bridged by asymmetrical N,N′-bis(substituted)oxamides. TRANSIT METAL CHEM 2011. [DOI: 10.1007/s11243-011-9476-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Liu L, Wei L, Yang Y, Zhao M, Zhang X, Zheng M, Wang Y, Peng S. A class of novel AA-Trp-Trp-OBzl: synthesis, in vitro anti-proliferation, in vivo anti-tumor action, and intercalation mechanism. MEDCHEMCOMM 2011. [DOI: 10.1039/c0md00208a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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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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26
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N-[2(3-Carboxyl-9-benzyl-carboline-1-yl)ethyl-1-yl]-amino acids: correlation of spectral property with in vivo anti-tumor activity. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9504-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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27
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Yang XB, Huang Y, Zhang JS, Yuan SK, Zeng RQ. Synthesis, characterization and DNA interaction of copper (II) complexes with Schiff base ligands derived from 2-pyridinecarboxaldehyde and polyamines. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.08.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Wang W, Zhao M, Wang Y, Liu J, Wu J, Kang G, Peng S. {2-[1-(3-Methoxycarbonylmethyl-1H-indol-2-yl)-1-methyl-ethyl]-1H-indol-3-yl}-acetic acid methyl ester (MIAM): its anti-cancer efficacy and intercalation mechanism identified via multi-model systems. MOLECULAR BIOSYSTEMS 2010; 7:766-72. [PMID: 21116565 DOI: 10.1039/c0mb00049c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
{2-[1-(3-Methoxycarbonylmethyl-1H-indol-2-yl)-1-methyl-ethyl]-1H-indol-3-yl}-acetic acid methyl ester (MIAM) was provided as a DNA-intercalator. For the comprehensive evaluation of this new intercalator, an assay system consisting of cell, S180 mouse, healthy mouse, spectrum, non-spectrum, and gel electrophoresis models was constructed. On the cell (S180, K562, MCF-7, HeLa and HepG2) models, MIAM selectively inhibited the viability of HeLa. On the S180 mouse model, 0.89, 8.9, 89 and 890 μmol kg(-1) of MIAM dose-dependently inhibited the tumor growth. Even at a dose of 890 μmol kg(-1), MIAM did not damage the treated S180 mice. The safety of MIAM was supported by a high spleen index and an obvious increase of body weight of the treated S180 mice. On the healthy mouse model the LD(50) value of MIAM is higher than 890 μmol kg(-1). The ultraviolet (UV), fluorescence, circular dichroism (CD), relative viscosity, melting curve, and gel electrophoresis assays of DNA with or without MIAM consistently supported an intercalation mechanism for MIAM.
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Affiliation(s)
- Wenjing Wang
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 1000, 69, P.R. China
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29
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Kashanian S, Khodaei MM, Pakravan P. Spectroscopic Studies on the Interaction of Isatin with Calf Thymus DNA. DNA Cell Biol 2010; 29:639-46. [DOI: 10.1089/dna.2010.1054] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Soheila Kashanian
- Department of Chemistry, Faculty of Science, Sensor and Biosensor Research Center (SBRC) & Nanoscience and Nanotechnology Research Center (NNRC), Razi University, Kermanshah, Iran
| | - Mohammad Mehdi Khodaei
- Department of Chemistry, Faculty of Science, Sensor and Biosensor Research Center (SBRC) & Nanoscience and Nanotechnology Research Center (NNRC), Razi University, Kermanshah, Iran
| | - Parvaneh Pakravan
- Department of Chemistry, Faculty of Science, Razi University, Kermanshah, Iran
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30
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Wu J, Li C, Zhao M, Wang W, Wang Y, Peng S. A class of novel carboline intercalators: Their synthesis, in vitro anti-proliferation, in vivo anti-tumor action, and 3D QSAR analysis. Bioorg Med Chem 2010; 18:6220-9. [PMID: 20692841 DOI: 10.1016/j.bmc.2010.07.043] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2010] [Revised: 07/16/2010] [Accepted: 07/17/2010] [Indexed: 10/19/2022]
Abstract
Based on DOCK scores 18 N-(3-benzyloxycarbonylcarboline-1-yl)ethylamino acid benzylesters (6a-r) were synthesized as anti-tumor agents. Their IC(50) values against five human carcinoma cell lines ranged from 11.1muM to more than 100muM. The in vivo assay identified five derivatives of them had no anti-tumor action, the anti-tumor activity of nine derivatives of them equaled that of cytarabine, and the anti-tumor activity of three derivatives of them was higher than that of cytarabine. The UV and fluorescence spectra, as well as the relative viscosity and melting temperature measurements of calf thymus DNA (CT DNA) with and without the representative compound suggested that DNA intercalation could be their action mechanism. The 3D QSAR analysis of N-(3-benzyloxycarbonylcarboline-1-yl)ethylamino acid benzylesters (6a-r) revealed that their in vivo anti-tumor activity significantly depends on the molecular electrostatic and steric fields of the side chain of the amino acid residue.
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Affiliation(s)
- Jianhui Wu
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
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31
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Indumathy R, Weyhermüller T, Nair BU. Biimidazole containing cobalt(iii) mixed ligand complexes: Crystal structure and photonuclease activity. Dalton Trans 2010; 39:2087-97. [DOI: 10.1039/b913464f] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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33
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Sathyaraj G, Weyhermüller T, Nair BU. Synthesis, characterization and DNA binding studies of new ruthenium(II)bisterpyridine complexes. Eur J Med Chem 2009; 45:284-91. [PMID: 19879670 DOI: 10.1016/j.ejmech.2009.10.008] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Revised: 09/30/2009] [Accepted: 10/01/2009] [Indexed: 11/26/2022]
Abstract
Two new ruthenium(II) complexes, [Ru(itpy)2](PF6)2, 1 and [Ru(bitpy)2](PF6)2 2, were synthesized and characterized by ESI-Mass, UV-Visible, 1H NMR, fluorescence spectroscopy and cyclic voltammetry. Complex 1 has been characterized crystallographically. Interaction of these complexes with CT-DNA has been studied using absorption and CD spectra. Absorption spectral titration and CD spectral measurements show that complex 1 binds with DNA through intercalation. Complex 2 on the other hand shows dual mode of binding to DNA, groove binding as well as intercalation. Photo nuclease activity of these complexes has been studied using agarose gel electrophoresis and both the complexes have been shown to exhibit photonuclease activity. However, complex 1 has been found to show higher DNA cleaving efficiency compared to complex 2.
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Affiliation(s)
- Gopal Sathyaraj
- Chemical Laboratory, Central Leather Research Institute, CSIR, Adyar, Chennai, 600020, India
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34
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Tang SP, Hou L, Mao ZW, Ji LN. Synthesis, crystal structures, DNA binding and oxidative cleavage studies of copper(II) complexes of N2S2 tetradentate ligands. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.11.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Liu ZQ, Li YT, Wu ZY, Zhang SF. [Cu4(H2O)4(dmapox)2(btc)]n·10nH2O: The first two-dimensional polymeric copper(II) complex with bridging μ-trans-oxamidate and μ4-1,2,4,5-benzentetracarboxylato ligands: Synthesis, crystal structure and DNA binding studies. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.03.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Seng HL, Ong HKA, Rahman RNZRA, Yamin BM, Tiekink ER, Tan KW, Maah MJ, Caracelli I, Ng CH. Factors affecting nucleolytic efficiency of some ternary metal complexes with DNA binding and recognition domains. Crystal and molecular structure of Zn(phen)(edda). J Inorg Biochem 2008; 102:1997-2011. [DOI: 10.1016/j.jinorgbio.2008.07.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2008] [Revised: 07/26/2008] [Accepted: 07/28/2008] [Indexed: 10/21/2022]
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37
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Oxidative DNA cleavage by Schiff base tetraazamacrocyclic oxamido nickel(II) complexes. J Inorg Biochem 2008; 102:824-32. [DOI: 10.1016/j.jinorgbio.2007.12.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 10/23/2007] [Accepted: 12/07/2007] [Indexed: 11/24/2022]
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38
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Wang Y, Yang ZY, Chen ZN. Synthesis, characterization and DNA-binding properties of four Zn(II) complexes with bis(pyrrol-2-yl-methyleneamine) ligands. Bioorg Med Chem Lett 2007; 18:298-303. [PMID: 18023579 DOI: 10.1016/j.bmcl.2007.10.085] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2007] [Revised: 09/27/2007] [Accepted: 10/25/2007] [Indexed: 11/30/2022]
Abstract
A novel series of bis(pyrrol-2-yl-methyleneamine) ligands H2L(n) (n = 1-4) were synthesized via condensation of diamines with two equivalents of 2-formyl-pyrrole (2). Their Zn(II) complexes were characterized by elemental analyses, mass spectra and IR spectra. The crystal structures of [ZnL(1)]2 and [ZnL(4)]2 obtained from ethanol solution was determined by X-ray diffraction analysis, each of them possesses a double-stranded helical geometry. In addition, the DNA-binding properties of the compounds have been fully investigated by absorption, fluorescence and viscosity measurements.
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Affiliation(s)
- Yuan Wang
- College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
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39
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Wu J, Cui G, Zhao M, Cui C, Peng S. Novel N-(3-carboxyl-9-benzyl-carboline-1-yl)ethylamino acids: synthesis, anti-proliferation activity and two-step-course of intercalation with calf thymus DNA. MOLECULAR BIOSYSTEMS 2007; 3:855-61. [PMID: 18000563 DOI: 10.1039/b712092n] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore the intercalating mechanism of -carbolines, four novel N-(3-carboxyl-9-benzyl-carboline-1-yl)ethylamino acids [-phenylalanine (6a), -alanine (6b), -isoleucine (6c) and -glycine (6d)] were prepared here. Their in vitro anticancer activities were examined by their anti-proliferation for 5 human carcinoma cell lines. The average IC50s against 5 human carcinoma cell lines are 53.54 microM, 118.77 microM, 147.34 microM and greater than 291.63 microM for 6a, 6b, 6c and 6d, respectively. The DNA intercalating mechanism of 6a-d was approved by the comparison of the parameters and signals of UV, CD and fluorescence spectra of calf thymus DNA (CT DNA) alone and the CT DNA/6a-d system. Using fluorescence titration based kinetic analysis a two-step-course consisting of stacking and intercalating was described and the stacking was considered as the key step to the CT DNA intercalating mechanism of 6a-d. Using fluorescence titration based thermomechanical analysis, the stacking complexes of 6a-d with CT DNA were described to be formed spontaneously and to be stabilized predominantly by their hydrophobic interactions. The intercalation itself goes very fast and only has limited contribution to their anticancer activities.
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Affiliation(s)
- Jianhui Wu
- College of Pharmaceutical Sciences, Peking University, Beijing 100083, P. R. China
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