1
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Drzewiecka-Antonik A, Struga M, Głogowska A, Augustynowicz-Kopec E, Dobrzyńska K, Chrzanowska A, Wolska A, Rejmak P, Klepka MT, Wrzosek M, Bielenica A. Synthesis, Structural Characterization and Biological Activity Evaluation of Novel Cu(II) Complexes with 3-(trifluoromethyl)phenylthiourea Derivatives. Int J Mol Sci 2022; 23:ijms232415694. [PMID: 36555333 PMCID: PMC9779606 DOI: 10.3390/ijms232415694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Copper complexes with 1,3-disubstituted thiourea derivatives, all containing 3-(trifluoromethyl)phenyl tail and 1-alkyl/halogen-phenyl substituent, were synthesized. The experimental spectroscopic studies and theoretical calculation revealed that two ligands coordinate to Cu(II) in a bidentate fashion via thiocarbonyl S and deprotonated N atoms of thiourea moiety. Such monomers are characteristic of alkylphenylthiourea complexes, whereas the formation of a sandwich-type dimer is observed for halogeno derivatives. For the first time, the structural identifications of CuN2S2-based complexes using experimental and theoretical X-ray absorption near edge structure are demonstrated. The dimeric halogeno derivatives showed higher antimicrobial activity in comparison with alkylphenylthiourea complexes. The Cu(II) complex of 1-(4-chloro-3-nitrophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea was active against 19 strains of methicillin-resistant Staphylococci (MIC = 2 µg/mL). This derivative acted as a dual inhibitor of DNA gyrase and topoisomerase IV isolated from Staphylococcus aureus. Additionally, complexes of halogenphenylthiourea strongly inhibited the growth of mycobacteria isolated from tuberculosis patients, even fourfold stronger than the reference isoniazid. The complexes exerted weak to moderate antitumor activity (towards SW480, SW620, and PC3) being non-toxic towards normal HaCaT cells.
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Affiliation(s)
| | - Marta Struga
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
| | - Agnieszka Głogowska
- Institute of Tuberculosis and Lung Diseases, Microbiology Department, Plocka 26, PL-01138 Warsaw, Poland
| | - Ewa Augustynowicz-Kopec
- Institute of Tuberculosis and Lung Diseases, Microbiology Department, Plocka 26, PL-01138 Warsaw, Poland
| | - Katarzyna Dobrzyńska
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Warsaw Medical University, 3 Oczki Street, PL-02007 Warsaw, Poland
| | - Alicja Chrzanowska
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
| | - Anna Wolska
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Paweł Rejmak
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Marcin T. Klepka
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Małgorzata Wrzosek
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
| | - Anna Bielenica
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
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2
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Al-Otaibi JS, Mary YS, Mary YS. Spectroscopic analyses on an azatricycloderivative by DFT with different solvents, reactivity analysis and MD simulations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Metal Complexes—A Promising Approach to Target Biofilm Associated Infections. Molecules 2022; 27:molecules27030758. [PMID: 35164021 PMCID: PMC8838073 DOI: 10.3390/molecules27030758] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/19/2022] [Accepted: 01/23/2022] [Indexed: 02/06/2023] Open
Abstract
Microbial biofilms are represented by sessile microbial communities with modified gene expression and phenotype, adhered to a surface and embedded in a matrix of self-produced extracellular polymeric substances (EPS). Microbial biofilms can develop on both prosthetic devices and tissues, generating chronic and persistent infections that cannot be eradicated with classical organic-based antimicrobials, because of their increased tolerance to antimicrobials and the host immune system. Several complexes based mostly on 3D ions have shown promising potential for fighting biofilm-associated infections, due to their large spectrum antimicrobial and anti-biofilm activity. The literature usually reports species containing Mn(II), Ni(II), Co(II), Cu(II) or Zn(II) and a large variety of multidentate ligands with chelating properties such as antibiotics, Schiff bases, biguanides, N-based macrocyclic and fused rings derivatives. This review presents the progress in the development of such species and their anti-biofilm activity, as well as the contribution of biomaterials science to incorporate these complexes in composite platforms for reducing the negative impact of medical biofilms.
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4
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Aleixo NA, Gomes PSDS, Silva PBD, Sato MR, Campos DL, Barud HDS, Castro GR, Islan GA, Toledo C, Karp F, Chorilli M, Pavan FR, Resende FA. Study of antimycobacterial, cytotoxic, and mutagenic potential of polymeric nanoparticles of copper (II) complex. J Microencapsul 2022; 39:61-71. [PMID: 34984941 DOI: 10.1080/02652048.2022.2025935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This study aimed to encapsulate and characterize a potential anti-tuberculosis copper complex (CuCl2(INH)2.H2O:I1) into polymeric nanoparticles (PNs) of polymethacrylate copolymers (Eudragit®, Eu) developed by nanoprecipitation method. NE30D, S100 and, E100 polymers were tested. The physicochemical characterizations were performed by DLS, TEM, FTIR, encapsulation efficiency and, in vitro release studies. Encapsulation of I1 in PN-NE30D, PN-E100, and PN-S100 was 26.3%, 94.5%, 22.6%, respectively. The particle size and zeta potential were 82.3 nm and -24.5 mV for PNs-NE30D, 304.4 nm and +18.7 mV for PNs-E100, and 517.9 nm and -6.9 mV for PNs-S100, respectively. All PDIs were under 0.5. The formulations showed a I1 controlled release at alkaline pH with 29.7% from PNs-NE30D, 7.9% from PNs-E100 and, 28.1% from PNs-S100 at 1 h incubation. PNs were stable for at least 3 months. Particularly, PNs-NE30D demonstrated moderate inhibition of M. tuberculosis and low cytotoxic activity. None of the PNs induced mutagenicity.
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Affiliation(s)
- Nadia Andrade Aleixo
- University of Araraquara (UNIARA), Department of Biological Sciences and Health, Araraquara, São Paulo State, Brazil
| | - Pietra Stefany da Silva Gomes
- University of Araraquara (UNIARA), Department of Biological Sciences and Health, Araraquara, São Paulo State, Brazil
| | - Patrícia Bento da Silva
- São Paulo State University (UNESP), Department of Drugs and Medicines, School of Pharmaceutical Sciences, Campus Araraquara, São Paulo State, Brazil.,Nanobiotechnology Laboratory, Institute of Biological Sciences, Department of Genetics and Morphology, University of Brasilia, Brasília, Brazil
| | - Mariana Rillo Sato
- São Paulo State University (UNESP), Department of Drugs and Medicines, School of Pharmaceutical Sciences, Campus Araraquara, São Paulo State, Brazil
| | - Débora Leite Campos
- São Paulo State University (UNESP), Department of Biological Sciences, School of Pharmaceutical Sciences, Campus Araraquara, São Paulo State, Brazil
| | - Hernane da Silva Barud
- University of Araraquara (UNIARA), Department of Biological Sciences and Health, Araraquara, São Paulo State, Brazil
| | - Guillermo Raul Castro
- Universidad Nacional de La Plata - CONICET (CCT La Plata), Facultad de Ciencias Exactas, Departmento de Química, CINDEFI, Laboratorio de Nanobiomateriales, La Plata, Argentina.,Universidad Nacional de Rosario, Centro de Estudios Interdisciplinarios (CEI), Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC). Partner Laboratory of the Max Planck Institute for Biophysical Chemistry (MPIbpC, MPG), Rosario, Santa Fe, Argentina
| | - German Abel Islan
- Universidad Nacional de La Plata - CONICET (CCT La Plata), Facultad de Ciencias Exactas, Departmento de Química, CINDEFI, Laboratorio de Nanobiomateriales, La Plata, Argentina
| | - Constanza Toledo
- Universidad Nacional de La Plata - CONICET (CCT La Plata), Facultad de Ciencias Exactas, Departmento de Química, CINDEFI, Laboratorio de Nanobiomateriales, La Plata, Argentina
| | - Federico Karp
- Universidad Nacional del Litoral (UNL), INTEC, Laboratorio de Química Fina (UNL-CONICET), Santa Fe, Argentina
| | - Marlus Chorilli
- São Paulo State University (UNESP), Department of Drugs and Medicines, School of Pharmaceutical Sciences, Campus Araraquara, São Paulo State, Brazil
| | - Fernando Rogério Pavan
- São Paulo State University (UNESP), Department of Biological Sciences, School of Pharmaceutical Sciences, Campus Araraquara, São Paulo State, Brazil
| | - Flávia Aparecida Resende
- University of Araraquara (UNIARA), Department of Biological Sciences and Health, Araraquara, São Paulo State, Brazil
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5
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The Cytotoxic Effect of Copper (II) Complexes with Halogenated 1,3-Disubstituted Arylthioureas on Cancer and Bacterial Cells. Int J Mol Sci 2021; 22:ijms222111415. [PMID: 34768844 PMCID: PMC8584173 DOI: 10.3390/ijms222111415] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/16/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022] Open
Abstract
A series of eight copper (II) complexes with 3-(4-chloro-3-nitrophenyl)thiourea were designed and synthesized. The cytotoxic activity of all compounds was assessed in three human cancer cell lines (SW480, SW620, PC3) and human normal keratinocytes (HaCaT). The complexes 1, 3, 5, 7 and 8 were cytotoxic to the studied tumor cells in the low micromolar range, without affecting the normal cells. The complexes 1, 3, 7 and 8 induced lactate dehydrogenase (LDH) release in all cancer cell lines, but not in the HaCaT cells. They provoked early apoptosis in pathological cells, especially in SW480 and PC3 cells. The ability of compounds 1, 3, 7 and 8 to diminish interleukin-6 (IL-6) concentration in a cell was established. For the first time, the influence of the most promising Cu (II) complexes on intensities of detoxifying and reactive oxygen species (ROS) scavenging the enzymes of tumor cells was studied. The cytotoxic effect of all copper (II) conjugates against standard and hospital bacterial strains was also proved.
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6
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Guerriero A, Gonsalvi L. From traditional PTA to novel CAP: A comparison between two adamantane cage-type aminophosphines. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120251] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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7
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Investigation of reactive properties of an antiviral azatricyclo derivative–KDFT, MD and docking simulations. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129937] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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8
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Majeed AA, Khalil MM, Fetoh A, Abdel Aziz AA, Abu El‐Reash G. Divalent manganese, cobalt, copper and cadmium complexes of (
Z
)‐
N
‐benzoyl‐
N
′‐(1
H
‐1,2,4‐triazol‐3‐yl)carbamimidothioic acid: Preparation, characterization, computational and biological studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Mostafa M.H. Khalil
- Department of Chemistry, Faculty of Science Ain Shams University Cairo Egypt
| | - Ahmed Fetoh
- Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
| | - Ayman A. Abdel Aziz
- Department of Chemistry, Faculty of Science Ain Shams University Cairo Egypt
| | - G.M. Abu El‐Reash
- Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
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9
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Klepka M, Kalinowska D, Barboza C, Drzewiecka-Antonik A, Ostrowska K, Wolska A. Structural investigation of Cu(II) complexes with dibromo 7-hydroxycoumarin derivatives using methodology based on XAS. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2018.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Drzewiecka-Antonik A, Rejmak P, Klepka M, Wolska A, Chrzanowska A, Struga M. Structure and anticancer activity of Cu(II) complexes with (bromophenyl)thiourea moiety attached to the polycyclic imide. J Inorg Biochem 2020; 212:111234. [PMID: 32927369 DOI: 10.1016/j.jinorgbio.2020.111234] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/15/2020] [Accepted: 08/16/2020] [Indexed: 11/25/2022]
Abstract
A series of nine copper complexes were synthesized by reacting 1,3-disubstituted thioureas with copper(II) chloride. The new compounds were characterized by elemental analysis, infrared, ultraviolet-visible and X-ray absorption spectroscopies as well as molecular modelling. The molecular structure of complexes in the solid state consists of two thiourea ligands chelated to the Cu(II) ion through the S and deprotonated N atoms (CuN2S2). The coordination polyhedron of metal cation in powdered samples exhibits two different geometries. Pseudo-tetrahedral structure is observed for noncentrosymmetric complexes with cis-N2S2 arrangement around Cu(II). A distorted square planar geometry is characteristic for centrosymmetric compounds with trans arrangements of chelating atoms around the central ion. All complexes after dissolving in dimethyl sulfoxide adopt a centrosymmetric coordination, while after diluting this solution with water, the reorganization of atoms around the metal cation is observed, leading to the formation of a tetrahedral compounds. Initial ligands and Cu(II) complexes were evaluated for their cytotoxicity. Two complexes with 4- and 3-bromophenyl attached to the (1,7,8,9,10-pentamethyl-3,5-dioxo-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl)thiourea moiety (Cu1, Cu3) are cytotoxic against SW480 and PC3 cells (IC50 4-19 μm), and non-cytotoxic against HaCaT cells (IC50 ≥ 84 μm), being more selective than doxorubicin and cisplatin used as references. The compounds induced apoptosis in cancer cells, however, Cu3 was estimated to be highly active inducer of late apoptosis in SW480 and PC3 cells at lower toxicity against normal cells. The likely mechanism of action of complexes is correlated with decreasing release of IL-6 in cancer cell lines.
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Affiliation(s)
| | - Paweł Rejmak
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Marcin Klepka
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Anna Wolska
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Alicja Chrzanowska
- Medical University of Warsaw, Chair and Department of Biochemistry, Banacha 1, PL-02097 Warsaw, Poland
| | - Marta Struga
- Medical University of Warsaw, Chair and Department of Biochemistry, Banacha 1, PL-02097 Warsaw, Poland
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11
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Khan E, Khan S, Gul Z, Muhammad M. Medicinal Importance, Coordination Chemistry with Selected Metals (Cu, Ag, Au) and Chemosensing of Thiourea Derivatives. A Review. Crit Rev Anal Chem 2020; 51:812-834. [DOI: 10.1080/10408347.2020.1777523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ezzat Khan
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Sikandar Khan
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Zarif Gul
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Mian Muhammad
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
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12
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Szulczyk D, Bielenica A, Roszkowski P, Dobrowolski MA, Olejarz W, Napiórkowska M, Struga M. Cytotoxicity Evaluation of Novel bis(2-aminoethyl)amine Derivatives. Molecules 2020; 25:molecules25122816. [PMID: 32570862 PMCID: PMC7355942 DOI: 10.3390/molecules25122816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 12/04/2022] Open
Abstract
Seven novel derivatives of bis(2-aminoethyl)amine were synthesized. For compounds 1 and 7 single crystals were isolated and X-ray diffraction experiments were done. Lipophilicity and drug likeness were calculated in the initial stage of research. All compounds were screened for their in vitro cytotoxic activity against a panel of human cancer cell lines, which is contrary to normal (HaCaT) cell lines, by using the MTT method. Studies were followed by lactate dehydrogenase assay, apoptotic activity, and interleukin-6 assay. Within the studied group, compound 6 showed the most promising results in all biological studies. The strongest influence in A549 cells was denoted for derivative 4, which inhibited interleukin release almost tenfold, as compared to the control.
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Affiliation(s)
- Daniel Szulczyk
- Chair and Department of Biochemistry, Medical University, 02–097 Warszawa, Poland; (A.B.); (M.N.); (M.S.)
- Correspondence:
| | - Anna Bielenica
- Chair and Department of Biochemistry, Medical University, 02–097 Warszawa, Poland; (A.B.); (M.N.); (M.S.)
| | - Piotr Roszkowski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (P.R.); (M.A.D.)
| | - Michał A. Dobrowolski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (P.R.); (M.A.D.)
| | - Wioletta Olejarz
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warszawa, Poland;
- Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Mariola Napiórkowska
- Chair and Department of Biochemistry, Medical University, 02–097 Warszawa, Poland; (A.B.); (M.N.); (M.S.)
| | - Marta Struga
- Chair and Department of Biochemistry, Medical University, 02–097 Warszawa, Poland; (A.B.); (M.N.); (M.S.)
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13
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Palanimurugan A, Dhanalakshmi A, Selvapandian P, Kulandaisamy A. Electrochemical behavior, structural, morphological, Calf Thymus-DNA interaction and in-vitro antimicrobial studies of synthesized Schiff base transition metal complexes. Heliyon 2019; 5:e02039. [PMID: 31334376 PMCID: PMC6614710 DOI: 10.1016/j.heliyon.2019.e02039] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/10/2019] [Accepted: 07/01/2019] [Indexed: 11/30/2022] Open
Abstract
New tetradentate Schiff base transition metal complexes have been derived from salicylidene-4-imino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one and histidine were characterized by CHN analysis, magnetic susceptibility measurements, molar conductance, FAB-MS, IR, 1H-NMR, UV, CV, EPR, Fluorescence emission, AFM and Powder XRD techniques. AFM images and Powder XRD data endure that the complexes are nano-size grains with polycrystalline structure. The spectral evidences showed that all the metal chelates are square planar geometry except [VOL] complex which exist square-pyramidal geometry. Electrochemical data (CV) for [CuL] and [VOL] complexes in acetonitrile solution indicates that the redox potential of metal ions is affected by the coordinated ligand. Electron Spin Resonance (ESR) spectra of [CuL] and [VOL] complexes were well coinciding with proposed geometries and other reported complexes. CT-DNA interaction studies of [CuL] complex reveals that an intercalation binding mode occurs between complex and DNA base pairs. The in vitro antimicrobial activity of complexes has been tested against the growth of some fungal and bacterial species persist that chelates have better control than ligand.
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Affiliation(s)
- A Palanimurugan
- Department of Chemistry, Raja Doraisingam Government Arts College, Sivagangai, 630 561, Tamilnadu, India
| | - A Dhanalakshmi
- Department of Physics, Raja Doraisingam Government Arts College, Sivagangai, 630 561, Tamilnadu, India
| | - P Selvapandian
- Department of Chemistry, Raja Doraisingam Government Arts College, Sivagangai, 630 561, Tamilnadu, India
| | - A Kulandaisamy
- Department of Chemistry, Raja Doraisingam Government Arts College, Sivagangai, 630 561, Tamilnadu, India
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14
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Han X, Shen K, Huang G, Li C, Mao S, Shi X, Wu H. Synthesis, structure, electrochemical properties and superoxide radical scavenging activities of two thiocyanate copper(II) complexes with different pyridyl-benzoxazole ligands. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.058] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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15
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Armstrong D, Kirk SM, Murphy C, Guerriero A, Peruzzini M, Gonsalvi L, Phillips AD. Water-Soluble Silver(I) Complexes Featuring the Hemilabile 3,7-Dimethyl-1,3,5-triaza-7-phosphabicyclo[3.3.1]nonane Ligand: Synthesis, Characterization, and Antimicrobial Activity. Inorg Chem 2018; 57:6309-6323. [DOI: 10.1021/acs.inorgchem.8b00227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Antonella Guerriero
- Istituto di Chimica dei Composti Organometallici (ICCOM), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Maurizio Peruzzini
- Istituto di Chimica dei Composti Organometallici (ICCOM), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
- Dipartimento di Scienze Chimiche e Tecnologia dei Materiali (DSCTM), Consiglio Nazionale delle Ricerche (CNR), Via dei Taurini 19, 00185 Rome, Italy
| | - Luca Gonsalvi
- Istituto di Chimica dei Composti Organometallici (ICCOM), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Andrew D. Phillips
- Istituto di Chimica dei Composti Organometallici (ICCOM), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
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16
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Synthesis, structural and antimicrobial studies of type II topoisomerase-targeted copper(II) complexes of 1,3-disubstituted thiourea ligands. J Inorg Biochem 2018; 182:61-70. [PMID: 29499458 DOI: 10.1016/j.jinorgbio.2018.01.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/20/2017] [Accepted: 01/07/2018] [Indexed: 12/12/2022]
Abstract
A series of Cu(II) complexes of 3-(trifluoromethyl)phenylthiourea derivatives was synthesized. Their structural properties were investigated by spectroscopic techniques (infrared and electron paramagnetic resonance), as well as molecular modeling. All studied coordination compounds are mononuclear complexes containing two chelating ligands bonded to the metal cation via S and deprotonated N atoms. The new chelates were evaluated for their antimicrobial potency. The complex of 1-(3,4-dichlorophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea (3) presented the highest activity against Gram-positive pathogens, even stronger than the activity of its non-complexed counterpart and the reference drug. The compound also prevented the biofilm formation of methicillin-resistant and standard strains of staphylococcal cocci. The title derivatives were found to be effective inhibitors of DNA gyrase and topoisomerase IV isolated from Staphylococcus aureus. The binding modes of the ligand L3 with DNA gyrase and topoisomerase IV were presented.
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