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Mamindla A, Murugan D, Varadhan M, Ajaykamal T, Rangasamy L, Palaniandavar M, Rajendiran V. Mixed-ligand copper(ii)-diimine complexes of 3-formylchromone- N 4-phenyl thiosemicarbazone: 5,6-dmp co-ligand confers enhanced cytotoxicity. RSC Adv 2024; 14:31704-31722. [PMID: 39376525 PMCID: PMC11457010 DOI: 10.1039/d4ra04997g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Accepted: 09/22/2024] [Indexed: 10/09/2024] Open
Abstract
The promising biological applications of thiosemicarbazone derivatives have inspired the design, synthesis, and study of their Cu(ii) complexes for anticancer therapeutic applications. Herein, we have evaluated the DNA/protein binding, DNA cleaving, and cytotoxic properties of four mixed-ligand Cu(ii) complexes of the type [Cu(L)(diimine)](NO3) 1-4, where HL is 4-oxo-4H-chromene-3-carbaldehyde-4(N)-phenylthiosemicarbazone and diimine is 2,2'-bipyridine (bpy, 1) 1,10-phenanthroline (phen, 2), 5,6-dimethyl-1,10-phenanthroline (5,6-dmp, 3), or dipyrido-[3,2-f:2',3'-h]-quinoxaline (dpq, 4). Interestingly, complex 3 with higher lipophilicity shows stronger DNA binding and oxidative DNA cleavage, higher ROS production, and more reversible redox behaviour, resulting in its remarkable cytotoxicity (IC50, 1.26 μM) against HeLa cervical cancer cells, and rendering it 5 times more potent than the widely used drug cisplatin. The same complex induces enhanced apoptotic cell death on HeLa cells but lower toxicity towards the non-cancerous PBMC cells. Molecular docking studies suggest that all the complexes bind in the minor groove of DNA and subdomain II of HSA, which is in close agreement with the experimental results. Also, 3 shows cytotoxicity higher than the analogous mixed ligand Cu(ii) complexes, reported already, emphasizing the importance of co-ligand in tuning the anticancer activity.
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Affiliation(s)
- Anjaneyulu Mamindla
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu Thiruvarur 610005 India
| | - Dhanashree Murugan
- Drug Discovery Unit (DDU), Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT) Vellore 632014 Tamilnadu India
| | - Manikandan Varadhan
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu Thiruvarur 610005 India
| | | | - Loganathan Rangasamy
- Drug Discovery Unit (DDU), Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT) Vellore 632014 Tamilnadu India
| | | | - Venugopal Rajendiran
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu Thiruvarur 610005 India
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Gayathri S, Viswanathamurthi P, Thuslim V, Sathya M, Ranjani M, Prabhakaran R, Haribabu J, Echeverria C. Synthesis, structural, DNA/protein binding and cytotoxic studies of copper(I) ∝-diimine hydrazone complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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3
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Karpagam S, Mamindla A, Kumar Sali V, Niranjana RS, Periasamy VS, Alshatwi AA, Akbarsha MA, Rajendiran V. Folic acid-conjugated mixed-ligand copper(II) complexes as promising cytotoxic agents for triple-negative breast cancers: A case study using MDA-MB-231 cell. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Cai DH, Zhang CL, Liu QY, He L, Liu YJ, Xiong YH, Le XY. Synthesis, DNA binding, antibacterial and anticancer properties of two novel water-soluble copper(II) complexes containing gluconate. Eur J Med Chem 2021; 213:113182. [PMID: 33486198 DOI: 10.1016/j.ejmech.2021.113182] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/02/2021] [Accepted: 01/07/2021] [Indexed: 12/20/2022]
Abstract
In this paper, two new Cu(II) complexes, [Cu(Gluc)(HPB)(H2O)]Gluc (CuG1) and [Cu(Gluc)(HPBC)(H2O)]Gluc (CuG2) (where HPB = 2-(2'-pyridyl)benzimidazole, HPBC = 5-chloro-2-(2'-pyridyl)benzimidazole, Gluc = d-Gluconic acid), with good water solubility were synthesized and characterized. These complexes exhibited a five-coordinated tetragonal pyramidal geometry. The DNA binding and cleavage properties of the complexes were investigated using multi-spectroscopy, viscosity measurement, molecular docking and gel electrophoresis analysis methods. The results showed that the complexes could interact with DNA by insertion and groove binding, and cleave CT-DNA through a singlet oxygen-dependent pathway in the presence of ascorbic acid. The studies on antibacterial and anticancer activities in vitro demonstrated that both complexes had good inhibitory activity against three Gram-positive bacteria (Staphylococcus aureus, Bacillus subtilis, Listeria monocytogenes) and one Gram-negative bacterium (Escherichia coli) and good cytotoxic activity toward the tested cancer cells (A549, HeLa and SGC-7901). CuG2 showed higher antimicrobial and cytotoxic activities than CuG1, which was consistent with their binding strength and cleavage ability to DNA, indicating that their antimicrobial and cytotoxic activities may be related to the DNA interaction. Moreover, the cell-based mechanism studies have indicated that CuG1 and CuG2 could arrest the cell cycle at G2/M phase, elevate the levels of intracellular reactive oxygen species (ROS) and decrease the mitochondrial membrane potential (MMP). The results showed that the complexes could induce apoptosis through DNA-damaged and ROS-mediated mitochondrial dysfunction pathways. Finally, the in vivo antitumor study revealed that CuG2 inhibited tumor growth by 50.44%, which is better than that of cisplatin (40.94%).
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Affiliation(s)
- Dai-Hong Cai
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, 510642, PR China
| | - Chun-Lian Zhang
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, 510642, PR China
| | - Qi-Yan Liu
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, 510642, PR China
| | - Liang He
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Yun-Jun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
| | - Ya-Hong Xiong
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, 510642, PR China
| | - Xue-Yi Le
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, 510642, PR China.
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Radhakrishnan K, Khamrang T, Sambantham K, Sali VK, Chitgupi U, Lovell JF, Mohammad AA, Venugopal R. Identification of cytotoxic copper(II) complexes with phenanthroline and quinoline, quinoxaline or quinazoline-derived mixed ligands. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rao NN, kishan E, Gopichand K, Nagaraju R, Ganai AM, Rao PV. Design, synthesis, spectral characterization, DNA binding, photo cleavage and antibacterial studies of transition metal complexes of benzothiazole Schiff base. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.cdc.2020.100368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Jyothi N, Ganji N, Daravath S, Shivaraj. Mononuclear cobalt(II), nickel(II) and copper(II) complexes: Synthesis, spectral characterization and interaction study with nucleotide by in vitro biochemical analysis. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127799] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li S, Zhao J, Yuan B, Wang X, Zhang J, Yue L, Hou H, Hu J, Chen S. Crystal structure, DNA interaction and in vitro anticancer activity of Cu(II) and Pt(II) compounds based on benzimidazole-quinoline derivative. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114369] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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9
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Aycan T, Paşaoğlu H. Investigation of spectral and structural properties of a coordination compound with phthalic acid: DFT and molecular docking studies. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1742331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Tuğba Aycan
- Arts and Sciences Faculty, Physics Department, Sinop University, Sinop, Turkey
| | - Hümeyra Paşaoğlu
- Arts and Sciences Faculty, Physics Department, Ondokuz Mayıs University, Samsun, Turkey
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Hyre AS, Doerrer LH. A structural and spectroscopic overview of molecular lanthanide complexes with fluorinated O-donor ligands. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Amritha B, Vasudevan S. Synthesis, characterisation, and DNA interaction studies of novel Cu(II), Ni(II), and Co(II) mono and bisligand complexes of N-(1,10-phenanthrolin-5-yl)acridine-9-carboxamide. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-019-01041-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Karpagam S, Kartikeyan R, Paravai Nachiyar P, Velusamy M, Kannan M, Krishnan M, Chitgupi U, Lovell JF, Abdulkader Akbarsha M, Rajendiran V. ROS-mediated cell death induced by mixed ligand copper(II) complexes of l-proline and diimine: effect of co-ligand. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1680834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Sambantham Karpagam
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Radhakrishnan Kartikeyan
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Pappaiyan Paravai Nachiyar
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Marappan Velusamy
- Department of Chemistry, North Eastern Hill University, Shillong, India
| | - Mani Kannan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, India
| | - Muthukalingan Krishnan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, India
| | - Upendra Chitgupi
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Jonathan F. Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Mohammad Abdulkader Akbarsha
- Mahatma Gandhi-Doerenkamp Center for Alternatives, Bharathidasan University, Tiruchirappalli, India
- Department of Life Sciences, National College (Autonomous), Tiruchirappalli, India
| | - Venugopal Rajendiran
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, India
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Choroba K, Machura B, Raposo LR, Małecki JG, Kula S, Pająk M, Erfurt K, Maroń AM, Fernandes AR. Platinum(ii) complexes showing high cytotoxicity toward A2780 ovarian carcinoma cells. Dalton Trans 2019; 48:13081-13093. [PMID: 31411239 DOI: 10.1039/c9dt02894c] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
2,6-Bis(thiazol-2-yl)pyridines functionalized with 9-anthryl (L1), 9-phenanthryl (L2), and 1-pyrenyl (L3) groups were used for the preparation of [Pt(Ln)Cl]CF3SO3 (1-3). The constitution of the Pt(ii) complexes was determined by 1H and 13C NMR spectroscopy, HR-MS spectrometry, elemental analysis and X-ray analysis (for (1)). The electrochemical and photophysical properties of [Pt(Ln)Cl]CF3SO3 were compared with the behaviour of the Pt(ii) complexes with aryl-substituted 2,2':6',2''-terpyridine ligands. What is noteworthy is that the coordination ability of dtpy toward the Pt(ii) centre was investigated for the first time. All complexes were tested in vitro by MTS assay on four tumor cell lines, A2780 (ovarian carcinoma), HTC116 (colon rectal carcinoma), MCF7 (breast adenocarcinoma), and PC3 (prostate carcinoma) and on normal primary fibroblasts. Compounds (1-3) showed a dose dependent antiproliferative effect in the A2780 cell line with (3) > (2) > (1) and this loss of A2780 cell viability was due to a combination of an apoptotic cell death mechanism via mitochondria and autophagic cell death. Exposure to IC50 concentration of (2) induced an increase in the number of apoptotic nuclei and a depolarization of the mitochondrial membrane which is consistent with the induction of apoptosis while exposure to IC50 concentration of (3) showed an increase in the apoptotic nuclei with a slight hyperpolarization of the mitochondrial membrane that might indicate an initial step of apoptosis induction. The complexes (2) and (3) induce an increase in the production of intracellular ROS which is associated with the trigger of the apoptotic pathways. The ROS production was augmented by the presence of oxidants and correlated with an increase of oxygen radicals. The IC50 of (2) and (3) (4.4 μM and 2.9 μM, respectively) was similar to the IC50 of cisplatin (3.4 μM) in the A2780 cell line, which together with their low cytotoxicity in normal fibroblasts, demonstrates their potential for further studies.
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Affiliation(s)
- Katarzyna Choroba
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
| | - Barbara Machura
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
| | - Luis R Raposo
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
| | - Jan G Małecki
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
| | - Slawomir Kula
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
| | - Michał Pająk
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
| | - Karol Erfurt
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
| | - Anna M Maroń
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
| | - Alexandra R Fernandes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
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Wang J, Zhu S, Liu R, Tang M, Su H, Cai X, Zhu H. Cyclometalated iridium(III) complex containing indolinyl-based phenanthroline ligand: Synthesis, structure and photophysical properties. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Selvam P, Sathiyakumar S, Srinivasan K, Premkumar T. A Copper(II) complex of a new hydrazone: A solid-state single source precursor for the preparation of both Cu and CuO nanoparticles. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Biswas N, Khanra S, Sarkar A, Bhattacharjee S, Prasad Mandal D, Chaudhuri A, Chakraborty S, Roy Choudhury C. Cytotoxicity activity, in silico molecular docking, protein- and DNA-binding study of a new Ni(II) Schiff base complex. J COORD CHEM 2019. [DOI: 10.1080/00958972.2018.1492118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Niladri Biswas
- Department of Chemistry, West Bengal State University, Kolkata, India
| | - Sumit Khanra
- Department of Chemistry, Indian Institute of Science Education and Research, Mohanpur, Kolkata, West Bengal, India
| | - Arnab Sarkar
- Department of Zoology, West Bengal State University, Kolkata, India
| | | | | | - Ankur Chaudhuri
- Department of Microbiology, West Bengal State University, Kolkata, India
| | - Sibani Chakraborty
- Department of Microbiology, West Bengal State University, Kolkata, India
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Wang KH, Gao EJ. Synthesis, crystal structure, DNA binding, molecular docking, cytotoxic activities and apoptosis of two copper (II) complexes constructed by 1,10-phen and semirigid bridge ligands. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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18
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Hu K, Liu C, Li J, Liang F. Copper(ii) complexes based on quinoline-derived Schiff-base ligands: synthesis, characterization, HSA/DNA binding ability, and anticancer activity. MEDCHEMCOMM 2018; 9:1663-1672. [PMID: 30429971 DOI: 10.1039/c8md00223a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 09/01/2018] [Indexed: 12/20/2022]
Abstract
Three copper(ii) complexes, [Cu(L1)(NO3)2] (C1), [Cu(L2)Cl2] (C2) and [Cu(L2)SO4]2·H2O (C3), were designed and synthesized by the reaction of Cu(NO3)2·3H2O, CuCl2·2H2O and CuSO4·5H2O with a quinoline-derived Schiff base ligand, L1 or L2, prepared by the condensation of quinoline-8-carbaldehyde with 4-aminobenzoic acid methyl ester or 4-aminobenzoic acid ethyl ester (benzocaine). The efficient bindings of the C1-C3 complexes with human serum albumin (HSA) and calf thymus DNA (CT-DNA) were analyzed by spectroscopy and molecular docking. These complexes could significantly quench the fluorescence of HSA through the static quenching process, and hydrophobic interactions with HSA through the sub-domain IIA and IIIA cavities. The complexes bind to DNA via the intercalative mode and they fit well into the curved contour of the DNA target in the minor groove region. Furthermore, the interaction abilities of the Cu(ii) complexes with HSA/DNA were greater as compared to their corresponding ligands. Interestingly, C1-C3, particularly C3, exhibited more cytotoxicity toward HeLa cells compared to normal HL-7702 cells and three other tumor cell lines (Hep-G2, NCI-H460, and MGC80-3). Their cytotoxicity toward the HeLa cell lines was 1.9-3.5-fold more potent than cisplatin. Further studies indicated that these complexes arrested the cell cycle in the G0/G1 phase and promoted tumor cell apoptosis via a reactive oxygen species (ROS)-mediated mitochondrial pathway.
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Affiliation(s)
- Kun Hu
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ;
| | - Chensi Liu
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ;
| | - Jingui Li
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ;
| | - Fupei Liang
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ; .,Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials , College of Chemistry and Bioengineering , Guilin University of Technology , Guilin 541004 , China
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Gao E, Xing J, Qu Y, Qiu X, Zhu M. Synthesis, characterization, DNA binding, cytotoxicity and molecular docking properties of Cu (II) and Mn (II) complexes with 1,4-bis (pyrazol-1-yl) terephthalic acid. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4469] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Enjun Gao
- Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry; Shenyang University of Chemical Technology; Shenyang 110142 People's Republic of China
| | - Jialing Xing
- Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry; Shenyang University of Chemical Technology; Shenyang 110142 People's Republic of China
| | - Yun Qu
- Department of Oncology; Shengjing Hospital of China Medical University; Shenyang People's Republic of China
| | - Xue Qiu
- Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry; Shenyang University of Chemical Technology; Shenyang 110142 People's Republic of China
| | - Mingchang Zhu
- Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry; Shenyang University of Chemical Technology; Shenyang 110142 People's Republic of China
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Wang J, Gou Y, Zhang Z, Yu P, Qi J, Qin Q, Sun H, Wu X, Liang H, Yang F. Developing an Anticancer Copper(II) Multitarget Pro-Drug Based on the His146 Residue in the IB Subdomain of Modified Human Serum Albumin. Mol Pharm 2018; 15:2180-2193. [PMID: 29722993 DOI: 10.1021/acs.molpharmaceut.8b00045] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Designing a multitarget anticancer drug with improved delivery and therapeutic efficiency in vivo presents a great challenge. Thus, we proposed to design an anticancer multitarget metal pro-drug derived from thiosemicarbazone based on the His146 residue in the IB subdomain of palmitic acid (PA)-modified human serum albumin (HSA-PA). The structure-activity relationship of six Cu(II) compounds with 6-methyl-2-formylpyridine-4N-substituted thiosemicarbazones were investigated, and then the multitarget capability of 4b was confirmed in cancer cell DNA and proteins. The structure of the HSA-PA-4b complex (HSA-PA-4b) revealed that 4b is bound to the IB subdomain of modified HSA, and that His146 replaces the nitrate ligand in 4b, coordinating with Cu2+, whereas PA is complexed with the IIA subdomain by its carboxyl forming hydrogen bonds with Lys199 and His242. In vivo data showed that 4b and the HSA-PA-4b complex inhibit lung tumor growth, and the targeting ability and therapeutic efficacy of the PA-modified HSA complex was stronger than 4b alone.
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Affiliation(s)
- Jun Wang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
| | - Yi Gou
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China.,School of Pharmacy , Nantong University , Nantong , Jiangsu 226000 , China
| | - Zhenlei Zhang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
| | - Ping Yu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
| | - Jinxu Qi
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
| | - Qipin Qin
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
| | - Hongbin Sun
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
| | - Xiaoyang Wu
- Ben May Department for Cancer Research , University of Chicago , Chicago , Illinois 60637 , United States
| | - Hong Liang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
| | - Feng Yang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , Guangxi 541003 , China
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Leng J, Shang Z, Quan Y. High energy transition state complex increased anticancer activity: A case study on CuII-complexes. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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McGivern T, Afsharpour S, Marmion C. Copper complexes as artificial DNA metallonucleases: From Sigman’s reagent to next generation anti-cancer agent? Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.08.043] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Bhat SS, Revankar VK, Kumbar V, Bhat K, Kawade VA. Synthesis, crystal structure and biological properties of a cis-dichloridobis(diimine)copper(II) complex. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:146-151. [PMID: 29400328 DOI: 10.1107/s2053229617018551] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 12/31/2017] [Indexed: 11/10/2022]
Abstract
The mechanisms of interaction of inorganic complexes with DNA are important in the design and development of new metal-based drug molecules. The limitations of cis-platin have encouraged the design and development of new metal-based target-specific anticancer drugs having reduced side effects. The complex cis-dichloridobis(1,2,5-thiadiazolo[3,4-f][1,10]phenanthroline-κ2N1,N10)copper(II), [CuCl2(C12H6N4S)2], has been synthesized and characterized. The complex crystallizes in the monoclinic space group C2/c. The covalent binding of the complex with DNA was studied by absorption spectroscopy. The anticancer activity of the complex on the Human Lung Carcinoma (A549) cell line was investigated by MTT assay. The complex exhibits higher toxicity than cis-platin and induces an apoptotic mode of cell death.
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Affiliation(s)
- Satish S Bhat
- Department of Chemistry, Karnatak University, Pavate Nagar, Dharwad, Karnataka 580 003, India
| | - Vidyanand K Revankar
- Department of Chemistry, Karnatak University, Pavate Nagar, Dharwad, Karnataka 580 003, India
| | - Vijay Kumbar
- Department of Microbiology, Maratha Mandal's NGH Institute of Dental Sciences & Research Centre, RS No. 47A/2, Bauxite Road, Belgaum, Karnataka 590 010, India
| | - Kishore Bhat
- Department of Microbiology, Maratha Mandal's NGH Institute of Dental Sciences & Research Centre, RS No. 47A/2, Bauxite Road, Belgaum, Karnataka 590 010, India
| | - Vitthal A Kawade
- Department of Chemistry, Ahmednagar College, Ahmednagar, Maharashtra 414 001, India
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Maroń A, Czerwińska K, Machura B, Raposo L, Roma-Rodrigues C, Fernandes AR, Małecki JG, Szlapa-Kula A, Kula S, Krompiec S. Spectroscopy, electrochemistry and antiproliferative properties of Au(iii), Pt(ii) and Cu(ii) complexes bearing modified 2,2′:6′,2′′-terpyridine ligands. Dalton Trans 2018; 47:6444-6463. [DOI: 10.1039/c8dt00558c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Impact of the metal centre and the substituent incorporated into a terpy framework.
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25
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Serre D, Erbek S, Berthet N, Ronot X, Martel-Frachet V, Thomas F. Copper(II) complexes of N 3O tripodal ligands appended with pyrene and polyamine groups: Anti-proliferative and nuclease activities. J Inorg Biochem 2017; 179:121-134. [PMID: 29222969 DOI: 10.1016/j.jinorgbio.2017.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/28/2017] [Accepted: 11/04/2017] [Indexed: 10/18/2022]
Abstract
A series of tripodal ligands based on the 2-tert-butyl-4-R-6-phenol was synthesized, where R=aldehyde (HL1), R=putrescine-pyrene (HL2) and R=putrescine (HL3). A dinucleating ligand wherein a putrescine group connects two tripodal moieties was also prepared (H2L4). The corresponding copper complexes (1, 2, 3, and 4, respectively) were prepared and characterized. We determined the phenol's pKas in the range 2.47-3.93. The DNA binding constants were determined at 6×106, 5.5×105 and 2.7×106 for 2, 3 and 4, respectively. The complexes display a metal-centered reduction wave at Epc,red=-0.45 to -0.5V vs. saturated calomel electrode, as well as a ligand-centered oxidation wave above 0.57V at pH7. In the presence of ascorbate they promote an efficient cleavage of DNA, with for example a concentration required to cleave 50% of supercoiled DNA of 1.7μM for 2. The nuclease activity is affected by the nature of the R group: putrescine-pyrene≈bis-ligating>putrescine>aldehyde. The species responsible for strand scission is the hydroxyl radical. The cytotoxicity of the complexes was evaluated on bladder cancer cell lines sensitive or resistant to cis-platin. The IC50 of complexes 2 and 4 span over a short range (1.3-2μM) for the two cell lines. They are lower than those of the other complexes (3.1-9.7μM) and cis-platin. The most active compounds block the cell cycle at the G0/1 phase and promote apoptosis.
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Affiliation(s)
- Doti Serre
- Département de Chimie Moléculaire, Université Grenoble Alpes, UMR-5250 CNRS UGA, CS 40700, 38058 Grenoble Cedex 9, France
| | - Sule Erbek
- EPHE, PSL Research University, IAB, INSERM UGA U1209 - CNRS UMR 5309, 38700 La Tronche, France
| | - Nathalie Berthet
- Département de Chimie Moléculaire, Université Grenoble Alpes, UMR-5250 CNRS UGA, CS 40700, 38058 Grenoble Cedex 9, France
| | - Xavier Ronot
- EPHE, PSL Research University, IAB, INSERM UGA U1209 - CNRS UMR 5309, 38700 La Tronche, France
| | | | - Fabrice Thomas
- Département de Chimie Moléculaire, Université Grenoble Alpes, UMR-5250 CNRS UGA, CS 40700, 38058 Grenoble Cedex 9, France.
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26
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Qi Y, Liu Y, Gan Q, Xiong Y, Mao Z, Le X. Three new mixed‐ligand copper(II) complexes containing glycyl‐
l
‐valine and N,N‐aromatic heterocyclic compounds: Synthesis, characterization, DNA interaction, cytotoxicity and antimicrobial activity. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yong‐Yu Qi
- Department of Applied ChemistrySouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Ya‐Xian Liu
- Department of Applied ChemistrySouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Qian Gan
- Department of Applied ChemistrySouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Ya‐Hong Xiong
- Department of Applied ChemistrySouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Zong‐Wan Mao
- Department of Applied ChemistrySouth China Agricultural University Guangzhou 510642 People's Republic of China
- School of Chemistry and Chemical EngineeringSun yat‐sen University Guangzhou 510275 People's Republic of China
| | - Xue‐Yi Le
- Department of Applied ChemistrySouth China Agricultural University Guangzhou 510642 People's Republic of China
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27
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Zhu X, Cui P, Kilina S, Sun W. Multifunctional Cationic Iridium(III) Complexes Bearing 2-Aryloxazolo[4,5-f][1,10]phenanthroline (N^N) Ligand: Synthesis, Crystal Structure, Photophysics, Mechanochromic/Vapochromic Effects, and Reverse Saturable Absorption. Inorg Chem 2017; 56:13715-13731. [PMID: 29083889 DOI: 10.1021/acs.inorgchem.7b01472] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of 2-aryloxazolo[4,5-f][1,10]phenanthroline ligands (N^N ligands) and their cationic iridium(III) complexes (1-11, aryl = 4-NO2-phenyl (1), 4-Br-phenyl (2), Ph (3), 4-NPh2-phenyl (4), 4-NH2-phenyl (5), pyridin-4-yl (6), naphthalen-1-yl (7), naphthalen-2-yl (8), phenanthren-9-yl (9), anthracen-9-yl (10), and pyren-1-yl (11)) were synthesized and characterized. By introducing different electron-donating or electron-withdrawing substituents at the 4-position of the 2-phenyl ring (1-5), or different aromatic substituents with varied degrees of π-conjugation (6-11) on oxazolo[4,5-f][1,10]phenanthroline ligand, we aim to understand the effects of terminal substituents at the N^N ligands on the photophysics of cationic Ir(III) complexes using both spectroscopic methods and quantum chemistry calculations. Complexes with the 4-R-phenyl substituents adopted an almost coplanar structure with the oxazolo[4,5-f][1,10]phenanthroline motif, while the polycyclic aryl substituents (except for naphthalen-2-yl) were twisted away from the oxazolo[4,5-f][1,10]phenanthroline motif. All complexes possessed strong absorption bands below 350 nm that emanated from the ligand-localized 1π,π*/1ILCT (intraligand charge transfer) transitions, mixed with 1LLCT (ligand-to-ligand charge transfer)/1MLCT (metal-to-ligand charge transfer) transitions. At the range of 350-570 nm, all complexes exhibited moderately strong 1ILCT/1LLCT/1MLCT transitions at 350-450 nm, and broad but very weak 3LLCT/3MLCT absorption at 450-570 nm. Most of the complexes demonstrated moderate to strong room temperature phosphorescence both in solution and in the solid state. Among them, complex 7 also manifested a drastic mechanochromic and vapochromic luminescence effect. Except for complexes 1 and 4 that contain NO2 or NPh2 substituent at the phenyl ring, respectively, all other complexes exhibited moderate to strong triplet excited-state absorption in the spectral region of 440-750 nm. Moderate to very strong reverse saturable absorption (RSA) of these complexes appeared at 532 nm for 4.1 ns laser pulses. The RSA strength followed the trend of 7 > 11 > 9 > 3 > 2 ≈ 4 > 5 ≈ 10 ≈ 6 ≈ 8 > 1. The photophysical studies revealed that the different 2-aryl substituents on the oxazole ring impacted the singlet and triplet excited-state characteristics dramatically, which in turn notably influenced the RSA of these complexes.
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Affiliation(s)
- Xiaolin Zhu
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108-6050, United States
| | - Peng Cui
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108-6050, United States.,Materials and Nanotechnology Program, North Dakota State University , Fargo, North Dakota 58105, United States
| | - Svetlana Kilina
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108-6050, United States
| | - Wenfang Sun
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108-6050, United States
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28
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Bhat SS, Revankar VK, Shivalingegowda N, Lokanath NK. A fluorophore-labelled copper complex: crystal structure, hybrid cyclic water-perchlorate cluster and biological properties. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2017; 73:710-717. [PMID: 28872069 DOI: 10.1107/s2053229617011639] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 08/08/2017] [Indexed: 03/06/2023]
Abstract
A fluorophore-labelled copper(II) complex, aquabis(dimethylformamide-κO)(perchlorato-κO)[2-(quinolin-2-yl)-1,3-oxazolo[4,5-f][1,10]phenanthroline]copper(II) perchlorate monohydrate, [Cu(ClO4)(C22H12N4O)(C3H7NO)2(H2O)]ClO4·H2O, has been synthesized and characterized. A cyclic hydrogen-bonded water-perchlorate anionic cluster, i.e. [(ClO4)2(H2O)2]2-, has been identified within the structure. Each cyclic anionic cluster unit is interconnected by hydrogen bonding to the cation. The cations join into an infinite hydrogen-bonded chain running in the [010] direction. Furthermore, interaction of the complex with calf-thymus DNA (CT-DNA) and cellular localization within the cells was explored. Spectroscopic studies indicate that the compound has a good affinity for DNA and stains the nucleus of the cells.
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Affiliation(s)
- Satish S Bhat
- Department of Chemistry, Karnatak University, Pavate Nagar, Dharwad, Karnataka 580 003, India
| | - Vidyanand K Revankar
- Department of Chemistry, Karnatak University, Pavate Nagar, Dharwad, Karnataka 580 003, India
| | | | - N K Lokanath
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka 570 006, India
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29
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T PL, Mondal M, Ramadas K, Natarajan S. Molecular interaction of 2,4-diacetylphloroglucinol (DAPG) with human serum albumin (HSA): The spectroscopic, calorimetric and computational investigation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 183:90-102. [PMID: 28441541 DOI: 10.1016/j.saa.2017.04.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 03/29/2017] [Accepted: 04/14/2017] [Indexed: 06/07/2023]
Abstract
Drug molecule interaction with human serum albumin (HSA) affects the distribution and elimination of the drug. The compound, 2,4-diacetylphloroglucinol (DAPG) has been known for its antimicrobial, antiviral, antihelminthic and anticancer properties. However, its interaction with HSA is not yet reported. In this study, the interaction between HSA and DAPG was investigated through steady-state fluorescence, time-resolved fluorescence (TRF), circular dichroism (CD), Fourier transform infrared (FT-IR) spectroscopy, isothermal titration calorimetry (ITC), molecular docking and molecular dynamics simulation (MDS). Fluorescence spectroscopy results showed the strong quenching of intrinsic fluorescence of HSA due to interaction with DAPG, through dynamic quenching mechanism. The compound bound to HSA with reversible and moderate affinity which explained its easy diffusion from circulatory system to target tissue. The thermodynamic parameters from fluorescence spectroscopic data clearly revealed the contribution of hydrophobic forces but, the role of hydrogen bonds was not negligible according to the ITC studies. The interaction was exothermic and spontaneous in nature. Binding with DAPG reduced the helical content of protein suggesting the unfolding of HSA. Site marker fluorescence experiments revealed the change in binding constant of DAPG in the presence of site I (warfarin) but not site II marker (ibuprofen) which confirmed that the DAPG bound to site I. ITC experiments also supported this as site I marker could not bind to HSA-DAPG complex while site II marker was accommodated in the complex. In silico studies further showed the lowest binding affinity and more stability of DAPG in site I than in site II. Thus the data presented in this study confirms the binding of DAPG to the site I of HSA which may help in further understanding of pharmacokinetic properties of DAPG.
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Affiliation(s)
- Pragna Lakshmi T
- Centre for Bioinformatics, Pondicherry University, Pondicherry, India
| | - Moumita Mondal
- Department of Biotechnology, Pondicherry University, Pondicherry, India
| | - Krishna Ramadas
- Centre for Bioinformatics, Pondicherry University, Pondicherry, India.
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Paul A, Hazra S, Sharma G, Guedes da Silva MFC, Koch B, Pombeiro AJL. Unfolding biological properties of a versatile dicopper(II) precursor and its two mononuclear copper(II) derivatives. J Inorg Biochem 2017; 174:25-36. [PMID: 28599129 DOI: 10.1016/j.jinorgbio.2017.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/26/2017] [Accepted: 05/30/2017] [Indexed: 11/30/2022]
Abstract
Synthesis, inter-conversions and biological study of the dichloro bridged dicopper(II) compound [CuLCl]2 (1) and its two mononuclear derivatives [CuLCl(H2O)]·H2O (2) and [CuLCl(py)] (3) (HL=2-(2-pyridylmethyleneamino)benzenesulfonic acid) are described. The dimeric compound 1 collapses into monomers 2 and 3 in the presence of coordinating solvents, water and pyridine, respectively, and 1 is regenerated upon simple stirring of 2 or 3 in methanol. The reactions of 1 with neutral (present study) and charged (earlier studies) ligands result in monomeric and multimeric compounds, respectively, attesting that it is a versatile dicopper(II) precursor. The anticancer activity of these copper complexes (1-3) was screened against lung (A-549) and breast (MDA-MB-231) human cancer cell lines. The IC50 (half maximal inhibitory concentration) value for one (3) of the compounds suggests preferential cytotoxicity against breast cancer MDA-MB-231 cell line. Furthermore, the IC50 value obtained for complex 3 is found to be almost two-fold times cytotoxic than the standard drug cisplatin. In addition, the underlying possible mechanism of its apoptosis-inducing efficacy in MDA-MB-231 cells has been rationalized by using flow cytometry (FACS) and Hoechst 33342/propidium iodide (PI) fluorescence staining. The stimulation of apoptotic induction for complex 3 has further been affirmed by reactive oxygen species (ROS) generation and mitochondrial aggregations studies.
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Affiliation(s)
- Anup Paul
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Susanta Hazra
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
| | - Gunjan Sharma
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
| | - Biplob Koch
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
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31
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Chen X, Li J, Hu W, Li MJ. Colorimetric and luminescent bifunctional iridium(III) complexes for the sensitive recognition of cyanide ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:904-909. [PMID: 27821373 DOI: 10.1016/j.saa.2016.10.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/05/2016] [Accepted: 10/16/2016] [Indexed: 06/06/2023]
Abstract
Two new cyclometalated iridium(III) complexes [(ppy)2Irppz]Cl (1) and [(ppy)2Irbppz]Cl (2) (where ppy=2-phenylpyridine, ppz=4,7-phenanthrolino-5,6:5,6-pyrazine, bppz=2.3-di-2-pyridylpyrazine), were designed and synthesized. The structure of [(ppy)2Irppz]Cl was determined by single crystal X-ray diffraction. Their photophysical properties were also studied. This kind of complexes could coordinate with Cu2+, the photoluminescence (PL) of the complex was quenched, and the color changed from orange-red to green. The forming M-Cu (M: complexes 1 and 2) ensemble could be further utilized as a colorimetric and emission "turn-on" bifunctional detection for CN-, especially for complex 1-Cu2+ showed a high sensitivity toward CN- with a limit of diction is 97nM. Importantly, this kind of iridium(III) complexes shows a unique recognition of cyanide ions over other anions which makes it an eligible sensing probe for cyanide ions.
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Affiliation(s)
- Xiudan Chen
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Jing Li
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Wenqin Hu
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Mei-Jin Li
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China.
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32
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Borges LJ, Bull ÉS, Fernandes C, Horn A, Azeredo NF, Resende JA, Freitas WR, Carvalho EC, Lemos LS, Jerdy H, Kanashiro MM. In vitro and in vivo studies of the antineoplastic activity of copper (II) compounds against human leukemia THP-1 and murine melanoma B16-F10 cell lines. Eur J Med Chem 2016; 123:128-140. [DOI: 10.1016/j.ejmech.2016.07.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 07/08/2016] [Accepted: 07/09/2016] [Indexed: 12/12/2022]
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Ma Z, Zhang B, Guedes da Silva MFC, Silva J, Mendo AS, Baptista PV, Fernandes AR, Pombeiro AJL. Synthesis, characterization, thermal properties and antiproliferative potential of copper(II) 4'-phenyl-terpyridine compounds. Dalton Trans 2016; 45:5339-55. [PMID: 26905013 DOI: 10.1039/c5dt02744f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Reactions between 4'-phenyl-terpyridine (L) and several Cu(II) salts (p-toluenesulfonate, benzoate and o-, m- or p-hydroxybenzoate) led to the formation of [Cu(p-SO3C6H4CH3)L(H2O)2](p-SO3C6H4CH3) (1), [Cu(OCOPh)2L] (2), [Cu(o-OCOC6H4OH)2L] (3), [Cu(m-OCOC6H4OH)2L]4·MeOH (·MeOH) and [Cu(p-OCOC6H4OH)2L]5·2H2O (·2H2O), which were characterized by elemental and TG-DTA analyses, ESI-MS, IR spectroscopy and single crystal X-ray diffraction, as well as by conductivimetry. In all structures the Cu atoms present N3O3 octahedral coordination geometries, which, in 2-5, are highly distorted as a result of the chelating-bidentate mode of one of the carboxylate ligands. Intermolecular π···π stacking interactions could also be found in 2-5 (in the 3.569-3.651 Å range and involving solely the pyridyl rings). Medium-strong hydrogen bond interactions lead to infinite 1D chains (in 1 and 4) and to an infinite 2D network (in 5). Compounds 1 and 4 show high in vitro cytotoxicity towards HCT116 colorectal carcinoma and HepG2 hepatocellular carcinoma cell lines. The antiproliferative potential of compound 1 is due to an increase of the apoptotic process that was confirmed by Hoechst staining, flow cytometry and RT-qPCR. All compounds able to non-covalently intercalate the DNA helix and induce in vitro pDNA double-strand breaks in the absence of H2O2. Concerning compound 1, the hydroxyl radical and singlet oxygen do not appear to be involved in the pDNA cleavage process and the fact that this cleavage also occurs in the absence of molecular oxygen points to a hydrolytic mechanism of cleavage.
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Affiliation(s)
- Zhen Ma
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China. and Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.
| | - Bian Zhang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.
| | - Joana Silva
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
| | - Ana Soraia Mendo
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
| | - Pedro Viana Baptista
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
| | - Alexandra R Fernandes
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal. and UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.
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Golla U, Adhikary A, Mondal AK, Tomar RS, Konar S. Synthesis, structure, magnetic and biological activity studies of bis-hydrazone derived Cu(ii) and Co(ii) coordination compounds. Dalton Trans 2016; 45:11849-63. [PMID: 27377047 DOI: 10.1039/c6dt01496h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Four coordination compounds of formulae [Cu(II)2(H2L(1))(HL(1))](ClO4)3·H2O (1), [Cu(II)2(H2L(2))(CH3OH)2](ClO4)2·2CH3OH (2), [Co(II)2(H2L(1))2](ClO4)4 (3) and [Co(II)2(H2L(2))2]·2H2O (4) were synthesized via self-assembly of succinohydrazone derived ligands (H2L(1) = N',N'-4-bis(2-pyridyl)succinohydrazide, H4L(2) = N',N'-4-bis(2-hydroxybenzylidene)succinohydrazide) and Cu(2+) and Co(2+) ions, respectively. The compounds were characterized by crystal structure determination, magnetic measurements and biological activities. Compounds 1, 3 and 4 have discrete double helicate structures, whereas compound 2 is a one-dimensional chain. Magnetic studies show antiferromagnetic exchange interactions in 2 with a J value of -67.1 cm(-1) and antiferromagnetic spin-canting in compound 3 originates through supramolecular H-bonding. For compound 3, a clear bifurcation was observed in zero field cooled (ZFC) and field cooled (FC) measurement at a temperature of 3.5 K and field of 0.1 T, implying long range magnetic ordering below this temperature. Interestingly, all of compounds 1-4 show significant changes in their absorption (hypo- and hyperchromism) in the presence of SS-DNA, inferring interaction between the compounds and DNA. In addition, compounds 1-4 significantly exhibited nuclease activities on both RNA and pUC19 plasmid DNA. Moreover, the nuclease activity was further enhanced in the presence of oxidant (H2O2) and suggests the possible role of reactive oxygen species in DNA nicking ability of compounds 1-4. Furthermore, compounds 1, 2 and 4 exhibited significant cytotoxicity against mammalian cancer cell lines (HeLa, A549 and MDAMB-231). In addition, our results from Annexin/PI staining and DNA fragmentation assays revealed that these compounds are capable of inducing apoptosis and have potential to act as anticancer drugs.
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Hazra S, Paul A, Sharma G, Koch B, da Silva MFCG, Pombeiro AJL. Sulfonated Schiff base Sn(IV) complexes as potential anticancer agents. J Inorg Biochem 2016; 162:83-95. [PMID: 27338202 DOI: 10.1016/j.jinorgbio.2016.06.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 05/13/2016] [Accepted: 06/03/2016] [Indexed: 12/13/2022]
Abstract
Syntheses, crystal structures and biological activities of the diphenoxo-bridged diorgano dinuclear Sn(IV) compounds [Sn(Et)2(HL)(H2O)]2 (1) and [Sn(n-Bu)2(HL)(H2O)]2 (2) derived from the Schiff base 2-[(2,3-dihydroxyphenyl)methylideneamino]benzenesulfonic acid trihydrate (H3L·3H2O) are described. The monoprotonated form (HL2-) of the Schiff base behaves as O,O'-bidentate ligand, chelating the metal by the two phenoxo oxygen atoms. The hexacoordinated metal centres in 1 and 2 are bridged by a phenoxo oxygen and the remaining coordination positions are fulfilled by the other phenoxo oxygen, two organic groups (ethyl for 1 and n-butyl for 2) and a water molecule. A two dimensional zigzag sheet in 1 and three dimensional polymeric networks in H3L·3H2O and 2 are stabilized by a number of non-covalent, H-bonding and π⋯π stacking interactions. The DNA binding activities of these complexes have been studied by UV-vis and fluorescence spectroscopies. Their antiproliferative efficacies have been evaluated on A-549, HeLa and MDA-MB-231 cancer cell lines by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. IC50 values (1.35±0.23, 2.43±0.54 and 1.74±0.04μM for 2) are indicative of a substantial cytotoxicity of 2, mainly towards the A-549 lung cancer cell line. The greater antiproliferative efficacy of 2has further been studied by fluorescence activated cell sorting (FACS) and nuclear morphology by Hoechst/propidium iodide (PI) double staining method. The possible mode of the apoptotic pathway for 2has been substantiated by the reactive oxygen species (ROS) generation studies.
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Affiliation(s)
- Susanta Hazra
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Anup Paul
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Gunjan Sharma
- Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Biplob Koch
- Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi 221 005, India.
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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36
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Kathiresan S, Mugesh S, Murugan M, Ahamed F, Annaraj J. Mixed-ligand copper(ii)-phenolate complexes: structure and studies on DNA/protein binding profiles, DNA cleavage, molecular docking and cytotoxicity. RSC Adv 2016. [DOI: 10.1039/c5ra20607c] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Copper(ii) complexes with simple and mixed ligands, [Cu(L)(ClO4)] and [Cu(L)(diimine)]ClO4 were synthesized and characterized by elemental analysis, UV-vis, FT-IR, electrospray ionization-mass spectrometry (ESI-MS) and electrochemical studies.
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Affiliation(s)
- Sellamuthu Kathiresan
- Department of Materials Science
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
| | - Subramanian Mugesh
- Department of Microbial Technology
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai-625 021
- India
| | - Maruthamuthu Murugan
- Department of Microbial Technology
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai-625 021
- India
| | - Feroze Ahamed
- Department of Microbial Technology
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai-625 021
- India
| | - Jamespandi Annaraj
- Department of Materials Science
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
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37
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Filipović NR, Bjelogrlić S, Todorović TR, Blagojević VA, Muller CD, Marinković A, Vujčić M, Janović B, Malešević AS, Begović N, Senćanski M, Minić DM. Ni(ii) complex with bishydrazone ligand: synthesis, characterization, DNA binding studies and pro-apoptotic and pro-differentiation induction in human cancerous cell lines. RSC Adv 2016. [DOI: 10.1039/c6ra24604d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A new Ni(ii) complex, [Ni(L)(H2O)] (1), with diethyl 3,3′-(2,2′-(1,1′-(pyridine-2,6-diyl)bis(ethan-1-yl-1-ylidene))bis(hydrazin-1-yl-2-ylidene))bis(3-oxopropanoate) ligand (H2L) was synthesized as a potential chemotherapeutic agent.
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Affiliation(s)
| | | | | | | | - Christian D. Muller
- Institut Pluridisciplinaire Hubert Curien
- UMR 7178 CNRS Université de Strasbourg
- 67401 Illkirch
- France
| | | | - Miroslava Vujčić
- Institute of Chemistry, Technology and Metallurgy
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Barbara Janović
- Institute of Chemistry, Technology and Metallurgy
- University of Belgrade
- 11000 Belgrade
- Serbia
| | | | - Nebojša Begović
- Institute of General and Physical Chemistry
- 11000 Belgrade
- Serbia
| | - Milan Senćanski
- Center for Multidisciplinary Research
- Institute of Nuclear Sciences ”Vinča”
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Dragica M. Minić
- Faculty of Physical Chemistry
- University of Belgrade
- 11000 Belgrade
- Serbia
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38
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Gan Q, Zhang CL, Wang BF, Xiong YH, Fu YL, Mao ZW, Le XY. Two new mixed copper(ii)–dipeptide complexes of N,N-donor heterocycle ligands: studies on their non-covalent DNA binding, chemical nuclease, antioxidant and anticancer activities. RSC Adv 2016. [DOI: 10.1039/c6ra01868h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two novel mononuclear mixed ligand copper(ii)-dipeptide complexes have been synthesized. The DNA interactions of the complexes were investigated. In addition, the antioxidant and antitumor activities of the complexes were evaluated.
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Affiliation(s)
- Qian Gan
- Department of Applied Chemistry
- South China Agricultural University
- Guangzhou 510642
- PR China
| | - Chun-Lian Zhang
- Department of Applied Chemistry
- South China Agricultural University
- Guangzhou 510642
- PR China
| | - Bing-Feng Wang
- Department of Applied Chemistry
- South China Agricultural University
- Guangzhou 510642
- PR China
| | - Ya-Hong Xiong
- Department of Applied Chemistry
- South China Agricultural University
- Guangzhou 510642
- PR China
| | - Yin-Lian Fu
- Department of Applied Mathematics
- South China Agricultural University
- Guangzhou 510642
- PR China
| | - Zong-Wan Mao
- Department of Applied Chemistry
- South China Agricultural University
- Guangzhou 510642
- PR China
- School of Chemistry and Chemical Engineering
| | - Xue-Yi Le
- Department of Applied Chemistry
- South China Agricultural University
- Guangzhou 510642
- PR China
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39
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Fernandes C, Horn A, Lopes BF, Bull ES, Azeredo NF, Kanashiro MM, Borges FV, Bortoluzzi AJ, Szpoganicz B, Pires AB, Franco RW, Almeida JCDA, Maciel LL, Resende JA, Schenk G. Induction of apoptosis in leukemia cell lines by new copper(II) complexes containing naphthyl groups via interaction with death receptors. J Inorg Biochem 2015; 153:68-87. [DOI: 10.1016/j.jinorgbio.2015.09.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/10/2015] [Accepted: 09/30/2015] [Indexed: 11/26/2022]
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40
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Shoair AGF, Ibrahim MM, Soliman M, Abu-Melha KA. Spectroscopic, electrochemical, DNA binding and antioxidant biomimetic catalytic activities of metformin-based copper(II) complexes. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.10.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Wu Z, Mu J, Wang Q, Chen X, Jensen L, Yi C, Li MJ. Hydroxyl and amino functionalized cyclometalated Ir(III) complexes: Synthesis, characterization and cytotoxicity studies. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.05.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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42
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Zhang X, Tang M, Li F, Zhu Y, Liu C, Zhang W, Wei D. Theoretical study on binding models of copper nucleases containing pyridyl groups to DNA. Theor Chem Acc 2015. [DOI: 10.1007/s00214-015-1700-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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43
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Characterization of antiproliferative potential and biological targets of a copper compound containing 4'-phenyl terpyridine. J Biol Inorg Chem 2015; 20:935-48. [PMID: 26077814 DOI: 10.1007/s00775-015-1277-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 06/03/2015] [Indexed: 12/11/2022]
Abstract
Several copper complexes have been assessed as anti-tumor agents against cancer cells. In this work, a copper compound [Cu(H2O){OS(CH3)2}L](NO3)2 incorporating the ligand 4'-phenyl-terpyridine antiproliferative activity against human colorectal, hepatocellular carcinomas and breast adenocarcinoma cell lines was determined, demonstrating high cytotoxicity. The compound is able to induce apoptosis and a slight delay in cancer cell cycle progression, probably by its interaction with DNA and induction of double-strand pDNA cleavage, which is enhanced by oxidative mechanisms. Moreover, proteomic studies indicate that the compound induces alterations in proteins involved in cytoskeleton maintenance, cell cycle progression and apoptosis, corroborating its antiproliferative potential.
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44
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Bhat SS, Revankar VK, Khan A, Butcher RJ, Thatipamula K. Supramolecular architecture and photophysical and biological properties of ruthenium(ii) polypyridyl complexes. NEW J CHEM 2015. [DOI: 10.1039/c4nj02394c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A two-dimensional cyclic hybrid water–chloride anionic network has been structurally characterized in a metal–organic matrix. DNA interactions and the cytotoxicity of ruthenium(ii) complexes have been studied.
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Affiliation(s)
- Satish S. Bhat
- Department of Chemistry
- Karnatak University
- Dharwad-580003
- India
| | | | - Ayesha Khan
- Department of Chemistry
- University of Pune
- Pune-411007
- India
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45
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Niu M, Li Z, Li H, Li X, Dou J, Wang S. DNA/protein interaction, cytotoxic activity and magnetic properties of amino-alcohol Schiff base derived Cu(ii)/Ni(ii) metal complexes: influence of the nuclearity and metal ions. RSC Adv 2015. [DOI: 10.1039/c5ra00623f] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reactions of amino-alcohol derived Schiff-base ligands with Cu(ii) and Ni(ii) salts have afforded four novel polynuclear complexes, which exhibited interesting magnetic and cytotoxic properties.
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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
- P. R. China
| | - Zhen Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- P. R. China
| | - Huanhuan Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- P. R. China
| | - Xiao Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- P. R. China
| | - Jianmin Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- P. R. China
| | - Suna Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- P. R. China
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46
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Tyagi N, Viji M, Karunakaran SC, Varughese S, Ganesan S, Priya S, Saneesh Babu PS, Nair AS, Ramaiah D. Enhancement in intramolecular interactions and in vitro biological activity of a tripodal tetradentate system upon complexation. Dalton Trans 2015; 44:15591-601. [DOI: 10.1039/c5dt00450k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Naphthalimide appended metal complexes uniquely exhibited intramolecular interactions, affinity for DNA/proteins and apoptosis mediated anticancer activity.
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Affiliation(s)
- Nidhi Tyagi
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Mambattakkara Viji
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Suneesh C. Karunakaran
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Sunil Varughese
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Shilpa Ganesan
- Agroprocessing and Natural Products Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Sulochana Priya
- Agroprocessing and Natural Products Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | | | - Asha S. Nair
- Rajiv Gandhi Centre for Biotechnology
- Thiruvananthapuram 695014
- India
| | - Danaboyina Ramaiah
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
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47
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Beeton ML, Aldrich-Wright JR, Bolhuis A. The antimicrobial and antibiofilm activities of copper(II) complexes. J Inorg Biochem 2014; 140:167-72. [PMID: 25124857 DOI: 10.1016/j.jinorgbio.2014.07.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/14/2014] [Accepted: 07/14/2014] [Indexed: 11/29/2022]
Abstract
Biofilm-related bacterial infections pose a significant problem, as they are generally more tolerant to antibiotics and the immune system. Development of novel compounds with antibiofilm activity is therefore paramount. In this study we have analysed metal complexes of the general structure [M(IL)(AL)](2+) (where IL represents functionalised 1,10-phenanthrolines and AL represents 1S,2S- or 1R,2R-diaminocyclohexane) and [Cu(IL)3](2+). Antimicrobial activity was tested on a number of bacterial strains, showing that copper(II) compounds were active against both Gram-positive and Gram-negative bacteria, albeit that activity was generally higher for the former. The antibiofilm activity was then determined against a clinical isolate of meticillin-resistant Staphylococcus aureus (MRSA). Strikingly, the copper complexes tested showed significant activity against biofilms, and were better in the removal of biofilms than vancomycin, an antibiotic that is currently used in the treatment of MRSA infections.
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Affiliation(s)
- Michael L Beeton
- University of Bath, Department of Pharmacy and Pharmacology, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Janice R Aldrich-Wright
- University of Western Sydney, School of Biomedical and Health Sciences, South Penrith, Australia
| | - Albert Bolhuis
- University of Bath, Department of Pharmacy and Pharmacology, Claverton Down, Bath BA2 7AY, United Kingdom.
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48
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Paul A, Gupta RK, Dubey M, Sharma G, Koch B, Hundal G, Hundal MS, Pandey DS. Potential apoptosis inducing agents based on a new benzimidazole schiff base ligand and its dicopper(ii) complex. RSC Adv 2014. [DOI: 10.1039/c4ra08680e] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis, characterization and DNA/protein binding studies of new benzimidazole based dicopper(ii) complex inducing apoptosis in MCF-7 cells have been presented.
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Affiliation(s)
- Anup Paul
- Departments of Chemistry and
- Banaras Hindu University
- Varanasi-221 005, India
| | - Rakesh Kumar Gupta
- Departments of Chemistry and
- Banaras Hindu University
- Varanasi-221 005, India
| | - Mrigendra Dubey
- Departments of Chemistry and
- Banaras Hindu University
- Varanasi-221 005, India
| | - Gunjan Sharma
- Zoology
- Faculty of Science
- Banaras Hindu University
- Varanasi-221 005, India
| | - Biplob Koch
- Zoology
- Faculty of Science
- Banaras Hindu University
- Varanasi-221 005, India
| | - Geeta Hundal
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar-143005, India
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