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Palmeira-Mello MV, Caballero AB, Lopez-Espinar A, Guedes GP, Caubet A, de Souza AMT, Lanznaster M, Gamez P. DNA-interacting properties of two analogous square-planar cis-chlorido complexes: copper versus palladium. J Biol Inorg Chem 2021; 26:727-740. [PMID: 34453615 PMCID: PMC8437883 DOI: 10.1007/s00775-021-01888-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/29/2021] [Indexed: 12/16/2022]
Abstract
Two square-planar coordination compounds, namely [Cu(CPYA)Cl2] (1) and [Pd(CPYA)Cl2] (2), were prepared from the ligand 4-chloro-N-(pyridin-2-ylmethyl)aniline (CPYA) and two chloride salts, and were fully characterized, including by X-ray diffraction. Spectroscopic, electrophoretic and AFM studies revealed that the two isostructural compounds were interacting differently with DNA. In both cases, the initial interaction involves electrostatic contacts of the CPYA ligand in the minor groove (as suggested by molecular docking), but subsequent strong binding occurs with the palladium(II) complex 2, whereas the binding with the copper complex 1 is weaker and concentration dependent. The strong binding of 2 eventually leads to the cleavage of the double strand and the redox activity of 1 allows to oxidatively cleave the biomolecule.
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Affiliation(s)
- Marcos V Palmeira-Mello
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, Niterói, RJ, 24020-141, Brazil
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain
- Laboratório de Modelagem Molecular and QSAR (ModMolQSAR), Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ana B Caballero
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain.
| | - Aida Lopez-Espinar
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain
| | - Guilherme P Guedes
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, Niterói, RJ, 24020-141, Brazil
| | - Amparo Caubet
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain
| | - Alessandra M Teles de Souza
- Laboratório de Modelagem Molecular and QSAR (ModMolQSAR), Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Mauricio Lanznaster
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, Niterói, RJ, 24020-141, Brazil
| | - Patrick Gamez
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, 08028, Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010, Barcelona, Spain
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de Moura TR, Zanetti RD, Silva DES, de Farias RL, Mauro AE, Pereira JCM, de Souza AA, da Silva Siqueira F, de Souza Júdice WA, Lima MA, Rocha FV, Deflon VM, Vieira de Godoy Netto A. Palladium( ii) complexes bearing 1-iminothiolate-3,5-dimethylpyrazoles: synthesis, cytotoxicity, DNA binding and enzymatic inhibition studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj02825h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This work describes the enzymatic inhibitory activity of four novel Pd(ii) complexes towards topoisomerase IIα and cathepsins B and L.In silicostudies agree well with the enhancedin vitrocathepsin B inhibition induced by compound4(58% at 10 μM).
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Affiliation(s)
- Thales Reggiani de Moura
- UNESP – Univ. Estadual Paulista
- Instituto de Química
- Departamento de Química Geral e Inorgânica
- Araraquara
- Brazil
| | - Renan Diego Zanetti
- UNESP – Univ. Estadual Paulista
- Instituto de Química
- Departamento de Química Geral e Inorgânica
- Araraquara
- Brazil
| | - Debora Eduarda Soares Silva
- UNESP – Univ. Estadual Paulista
- Instituto de Química
- Departamento de Química Geral e Inorgânica
- Araraquara
- Brazil
| | - Renan Lira de Farias
- UNESP – Univ. Estadual Paulista
- Instituto de Química
- Departamento de Química Geral e Inorgânica
- Araraquara
- Brazil
| | - Antonio Eduardo Mauro
- UNESP – Univ. Estadual Paulista
- Instituto de Química
- Departamento de Química Geral e Inorgânica
- Araraquara
- Brazil
| | - José Clayston Melo Pereira
- UNESP – Univ. Estadual Paulista
- Instituto de Química
- Departamento de Química Geral e Inorgânica
- Araraquara
- Brazil
| | - Aline Aparecida de Souza
- UMC - Univ. de Mogi das Cruzes
- Centro Interdisciplinar de Investigação Bioquímica
- Mogi das Cruzes
- Brazil
| | - Fábio da Silva Siqueira
- UMC - Univ. de Mogi das Cruzes
- Centro Interdisciplinar de Investigação Bioquímica
- Mogi das Cruzes
- Brazil
| | | | - Mauro Almeida Lima
- UFSCar – Univ. Federal de São Carlos
- Departamento de Química
- São Carlos
- Brazil
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Biological Impacts of Metal(II) Complex-Based DNA Probes Derived from Bidentate N,O Donor Schiff Base Ligand. Appl Biochem Biotechnol 2019; 190:373-390. [PMID: 31363981 DOI: 10.1007/s12010-019-03110-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/18/2019] [Indexed: 10/26/2022]
Abstract
In this article, we have reported the preparation and structural characterization of a new Schiff base ligand (E)-2-(((2,6-difluorophenyl)imino)methyl)phenol (HSBL) and its derived metal(II) complexes [Cu(SBL)2] (1), [Ni(SBL)2] (2) and [Pd(SBL)2] (3). Using various analytical and spectroscopic techniques, their structural properties have been appraised. The proposed chemical structure of HSBL has been confirmed by Single crystal XRD studies. Bidentate characteristic of HSBL and its coordination with metal(II) ions through the oxygen atom of the phenolic group and nitrogen atom of the azomethine group have been evaluated from the FT-IR spectral analysis. Pd(II) complex of HSBL (complex 3) has found to be efficient in bringing about the interaction with DNA as well as BSA molecules. The in vitro antimicrobial studies have been demonstrated that complex 3 has a superior antimicrobial activity than HSBL, complexes 1 and 2. According to the values of zone of inhibition, the antimicrobial ability has been increased in the order of 3 > 1 > 2 > HSBL. A significant decrease in percent cell viability has been suggested that complex 3 has remarkable cytotoxicity (IC50 = 15.7 ± 0.6 μg/mL) on human breast cancer (MCF-7) cells. Besides, their induced apoptosis pathway of cytotoxicity has been demonstrated by fluorescence staining techniques using AO/EB staining method. We hope this article will be very helpful for future research on the development of new anticancer agents.
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de Moura TR, Cavalcanti SL, de Godoy PRDV, Sakamoto-Hojo ET, Rocha FV, de Almeida ET, Deflon VM, Mauro AE, Netto AVG. Synthesis, characterization and antitumor activity of palladium(II) complexes of imidazolidine-2-thione. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0161-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cationic Pd(II) complexes acting as topoisomerase II inhibitors: Synthesis, characterization, DNA interaction and cytotoxicity. J Inorg Biochem 2016; 159:165-8. [DOI: 10.1016/j.jinorgbio.2016.02.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 01/25/2016] [Accepted: 02/25/2016] [Indexed: 11/21/2022]
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DNA binding, topoisomerase inhibition and cytotoxicity of palladium(II) complexes with 1,10-phenanthroline and thioureas. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.02.053] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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da Silva C, Ferreira J, Mauro A, Frem R, Santos R, da Silva P, Pavan F, Marino L, Leite C, Netto A. Synthesis and antimycobacterial activity of new pyrazolate-bridged dinuclear complexes of the type [Pd(μ-L)(N 3 )(PPh 3 )] 2 (PPh 3 = triphenylphosphine; L = pyrazolates). INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Segura DF, Netto AV, Frem RC, Mauro AE, da Silva PB, Fernandes JA, Paz FA, Dias AL, Silva NC, de Almeida ET, Marques MJ, de Almeida L, Alves KF, Pavan FR, de Souza PC, de Barros HB, Leite CQ. Synthesis and biological evaluation of ternary silver compounds bearing N,N-chelating ligands and thiourea: X-ray structure of [{Ag(bpy)(μ-tu)}2](NO3)2 (bpy=2,2′-bipyridine; tu=thiourea). Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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